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Thermogravimetric analysis of co-combustion characteristics of sewage sludge and bamboo scraps combined with artificial neural networks Renew. Energy (IF 8.7) Pub Date : 2024-03-15 Xiang Liu, Haobo Bi, Junjian Tian, Zhanshi Ni, Hao Shi, Yurou Yao, Kesheng Meng, Jian Wang, Qizhao Lin
The increasing amount of sludge resources has brought great challenges to the ecological environment and sustainable development. Co-combustion of low calorific value sewage sludge and biosolid waste has become a new and effective way to treat sludge. The co-combustion characteristics of sewage sludge and bamboo scraps in air were studied by thermogravimetric mass spectrometry and artificial neural
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Unsteady effects of a winglet on the performance of horizontal-axis tidal turbine Renew. Energy (IF 8.7) Pub Date : 2024-03-14 Dahai Zhang, Di Liu, Xiaodong Liu, Haiyang Xu, Yuankui Wang, Ran Bi, Peng Qian
A tip winglet can reduce the induced drag and the load fluctuation of a blade, considerably improving the hydrodynamic performance of a tidal turbine. Up to now, there are fewer studies on the unsteady effects of winglets, which limits the application of this design scheme. In this paper, a tidal turbine model is established based on computational fluid dynamics (CFD) and verified by a flume experiment
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A novel integration of supplementary photovoltaic module into compound parabolic concentrator for accelerated defrosting of solar collecting system Renew. Energy (IF 8.7) Pub Date : 2024-03-14 Zehui Chang, Xuedong Liu, Ziheng Guo, Jing, Yuehong Su
In order to improve the temperature of solar greenhouse in winter and reduce the cost and energy consumption of traditional heating methods for solar greenhouse. This study presents a novel compound parabolic concentrator (CPC) coupled with a supplementary photovoltaic (SPV) module for soil heating in solar greenhouse. Firstly, a novel SPV-CPC was designed and its optical model was established by TracePro
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Operating optimization of biomass direct-fired power plant integrated with carbon capture system considering the life cycle economic and CO2 reduction performance Renew. Energy (IF 8.7) Pub Date : 2024-03-14 Xiao Wu, Ziteng Zhang, Xuan Zhang
Biomass direct-fired power plant integrated with carbon capture system can achieve negative CO emission during the power generation, which provides an important technology pathway for the transformation of energy system towards carbon neutrality. Understanding the economic competitiveness and CO reduction potential of the plant, and identifying the optimal operating mode are the key to fully exert
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Multi-objective prediction and optimization of performance of three-layer latent heat storage unit based on intermittent charging and discharging strategies Renew. Energy (IF 8.7) Pub Date : 2024-03-13 Chenyu Zhang, Zhenjun Ma, Zhiguo Qu, Hongtao Xu
An intermittent heat charging and discharging strategy is proposed for on-demand thermal utilization in a three-layer latent heat storage unit filled with nanoparticle-enhanced phase change materials. To optimize the utilization ratio of phase change materials, and the stored and released thermal exergy amounts, a multi-objective prediction and optimization methodology combining orthogonal experimental
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Development of flexible supportive policy with real options for renewable energy projects: Case of photovoltaic systems Renew. Energy (IF 8.7) Pub Date : 2024-03-13 Mohammad Reza Heidari, Gholamreza Heravi
Climate change and environmental crises as primary drivers of renewable energy development were invigorated uncertainties in the fossil fuel supply chain and price. Managing these uncertainties needs more flexibility in supportive policies. The minimum revenue guarantee and total income cap as two options are used in this research for renewable energy development. The diminution of government role
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The surface and interlayer modification of montmorillonite and its potential application for thermal energy storage Renew. Energy (IF 8.7) Pub Date : 2024-03-13 Ying Sun, Xingzhou Yuan, Jiabao Wen, Zhanxu Yang
Phase change materials (PCMs) could take full advantage of clean and renewable energy, because of their ability to convert and store various energy. However, due to the leakage and low heat storage capacity, the large-scale commercial application of PCMs is seriously limited. In this work, natural montmorillonite (MMT) was modified by organic amine coupling agent that was assembled into the interlayer
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A thermo-economic analysis of a circular economy model for biomass in South America producing biofertilizers and biogas from municipal solid waste Renew. Energy (IF 8.7) Pub Date : 2024-03-13 Juan Pablo Gómez Montoya, Yoisdel Castillo Alvarez, Ruane Fernandes De Magalhães, Fernando Henrique Lermen
The linear economy model has caused many impacts associated with increased urban population and municipal solid waste generation worldwide. Through anaerobic digestion, the circular bioeconomy of biomass (methanogenic) provides a fuel (biogas) and an environmentally sustainable biofertilizer. This theoretical-descriptive research proposes a circular economic model based on the design of biorefineries
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Multi-objective optimization study of regional integrated energy systems coupled with renewable energy, energy storage, and inter-station energy sharing Renew. Energy (IF 8.7) Pub Date : 2024-03-12 Jiandong Jia, Haiqiao Li, Di Wu, Jiacheng Guo, Leilei Jiang, Zeming Fan
Globally, countries have established timelines and technological pathways towards achieving "carbon neutrality". Regional integrated energy systems, as an efficient and clean mode of energy provision, are particularly suitable for supplying various forms of energy to building users. However, due to the complexity of their structure and multiple energy flow couplings, regional integrated energy systems
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Site-specific wake steering strategy for combined power enhancement and fatigue mitigation within wind farms Renew. Energy (IF 8.7) Pub Date : 2024-03-12 Ruiyang He, Hongxing Yang, Lin Lu, Xiaoxia Gao
Wind energy plays a crucial role in the quest for sustainable energy solutions. However, optimizing the efficiency of wind energy utilization remains a significant challenge. Wake steering, a key strategy in the field, offers the potential to address this challenge. This study introduces an innovative site-specific wake steering framework that incorporates a wake superposition model for wake steering
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Quantifying the impact of inverter clipping on photovoltaic performance and soiling losses Renew. Energy (IF 8.7) Pub Date : 2024-03-12 Leonardo Micheli, Matthew Muller, Marios Theristis, Greg P. Smestad, Florencia Almonacid, Eduardo F. Fernandez
It is commonly assumed that cleaning photovoltaic (PV) modules is unnecessary when the inverter is undersized because clipping will sufficiently mask the soiling losses. Clipping occurs when the inverter's AC size is smaller than the overall modules' DC capacity and leads to the conversion of only part of the PV-generated DC energy into AC. This study evaluates the validity of this assumption, theoretically
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Field observations of the wake from a full-scale tidal turbine array Renew. Energy (IF 8.7) Pub Date : 2024-03-12 M. Guerra, A.E. Hay
Wake measurements are critical for quantifying the hydrodynamic effects of tidal energy extraction and for designing arrays of tidal turbines. In this investigation field measurements from the wake of PLAT-I, a commercial-scale floating array of four tidal turbines, are presented. Instrumented surface-following drifters are used to measure velocity and turbulence in the wake of PLAT-I while deployed
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AI-driven battery ageing prediction with distributed renewable community and E-mobility energy sharing Renew. Energy (IF 8.7) Pub Date : 2024-03-12 Yuekuan Zhou
Electrochemical battery storages play multiple functions in district energy systems, like peak shaving, load coverage, renewable penetration, load coverage, frequency regulation and short-term fast response. Battery cycling ageing will significantly affect the battery performance and the ignorance or inaccurate estimation on battery cycling ageing will lead to performance overestimation. However, current
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Efficient catalytic conversion of cellulose into 5-hydroxymethylfurfural by modified cerium zirconium phosphates in a biphasic system Renew. Energy (IF 8.7) Pub Date : 2024-03-11 Kaiqi Yan, Zhihao Wang, Xiaobo Wang, Shengpeng Xia, Yuyang Fan, Kun Zhao, Zengli Zhao, Anqing Zheng
Numerous metal phosphates have shown activity in the conversion of cellulose into 5-hydroxymethylfurfural (HMF). However, challenges persist due to low HMF yields and unclear structure-reactivity relationships. Herein, a series of zirconium-cerium phosphate-based catalysts were prepared by the co-precipitation method. These catalysts were sulfonated and loaded with tungsten to introduce Brønsted acidity
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Utilization of Keplerate-type polyoxomolybdates {Mo132} supported on hierarchical porous SOM-ZIF-8 as reusable catalyst boosts biodiesel production from acidic soybean oils by simultaneous transesterification-esterifications Renew. Energy (IF 8.7) Pub Date : 2024-03-11 Wenlei Xie, Xiangxiang Wang, Lihong Guo
Improving the reactant mass transfer on the catalyst surface is a feasible approach to fabricate a robust solid catalyst for efficiently promoting the biomass macromolecules-involving reactions, specifically for biodiesel production by using non-edible acidic oils as feedstocks. In this premise, to reduce the mass transfer resistance, the hierarchical porous SOM-ZIF-8 was firstly synthesized using
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Enhancing the performance of thermoelectric generators using novel segmental arrangement of multi-functional gradient materials Renew. Energy (IF 8.7) Pub Date : 2024-03-11 Abd El-Moneim A. Harb, Khairy Elsayed, Momtaz Sedrak, Mahmoud Ahmed, Ahmed Abdo
Enhancing the performance of thermoelectric generators at wide range of operating temperatures is of great importance to maximize the output power. Thus, different updated semiconductor materials with different values of figure of merit are used. Accordingly, a modified design of the TEG system based on the multi-functional gradient (MFG) technique is developed. A comprehensive three-dimensional modeling
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A novel argyle puzzle for partial shading effect mitigation with experimental validation Renew. Energy (IF 8.7) Pub Date : 2024-03-11 Dalia Yousri, Thanikanti Sudhakar Babu, Rupendra Kumar Pachauri, Hatem Zeineldin, Ehab F. El-Saadany
Reconfiguring partially shaded photovoltaic (PV) arrays emerges as a potent solution for mitigating power loss and prolonging the array’s lifespan. Among the proposed strategies, static reconfiguration involves a one-time rearrangement, necessitating a reliable and effective approach for universal application. However, existing literature often exhibits a significant deficiency in uniformly scattering
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Co-processing of BTL Fischer-Tropsch wax and heavy vacuum gas oil Renew. Energy (IF 8.7) Pub Date : 2024-03-11 Olga Pleyer, Dan Vrtiška, Petr Straka, Pavel Šimáček
Co-hydrocracking of Fischer-Tropsch wax (FTW) derived from forest residue and petroleum-derived heavy vacuum gas oil (HVGO) is one of the potential ways to implement synthetic fuels into the transportation sector. Neat HVGO and its blends with FTW in mass ratios of 90:10, 70:30 and 50:50 were processed in the lab-scale continuous-flow catalytic unit with a fixed-bed reactor at reaction temperatures
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A coupling framework between OpenFAST and WEC-Sim. Part I: Validation and dynamic response analysis of IEA-15-MW-UMaine FOWT Renew. Energy (IF 8.7) Pub Date : 2024-03-11 Tianyuan Wang, Kai Zhu, Feifei Cao, Demin Li, Haoxiang Gong, Yanni Li, Hongda Shi
This study proposes a coupling strategy between OpenFAST and WEC-Sim (OWS) to provide a general solution for the design of offshore floating wind turbines (FOWTs). The fully-coupled calculation is implemented by transferring the tower-base loads from OpenFAST to WEC-Sim, which in turn transfers the platform displacements, velocities and accelerations back to the former. The cross-platform data interface
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Impact of the climate change on the site suitability for solar farms: Case study of Cameroon Renew. Energy (IF 8.7) Pub Date : 2024-03-09 Elvis Wati, Pierre Meukam
It is widely agreed that in the coming decade the Earth's climate will undergo significant changes, which will considerably affect the ecosystems and populations in various ways. In this study, the climate change impact on the suitability of the recommended sustainable locations for siting solar PV facilities in Cameroon is assessed based on the downscaled climate projections and the geographic information
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Evaluation of future renewable energy drought risk in China based on CMIP6 Renew. Energy (IF 8.7) Pub Date : 2024-03-09 Jingping Zuo, Cuncun Qian, Bing Su, Hao Ji, Yang Xu, Zhipeng Peng
With the growing share of the climate-sensitive renewable energy market supply in China, estimating future energy drought risk (ED) is essential. In this paper, based on CMIP6, energy demand and power generation are estimated from 2023 to 2100 under SSP2-4.5 and SSP5-8.5 climate scenarios, and ED is defined from high demand (HD), low wind-solar generation (LWS), and residual load (RL). The results
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Co-pyrolysis model for polylactic acid (PLA)/wood composite and its application in predicting combustion behaviors Renew. Energy (IF 8.7) Pub Date : 2024-03-09 Xin Ma, Junling Wang, Lun Li, Xuan Wang, Junhui Gong
Polylactic acid (PLA)/wood composite has gained great popularity in applications due to its renewable and biodegradable features, whereas quantitative modelling from microscale co-pyrolysis to bench-scale combustion was barely reported. To challenge this issue, poplar wood, PLA and three PLA/wood composites with mass ratios of 1:3, 1:1, and 3:1 were adopted to conduct thermogravimetric analysis (TGA)
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Techno-economic analysis of various configurations of stand-alone PV-RO systems for Pakistan Renew. Energy (IF 8.7) Pub Date : 2024-03-09 Haider Ali, Muhammad Usama Siddiqui, Ammar, Muhammad Ahsan Aswani, Muhammad Umer, Muhammad Ismail Khan
The global water scarcity crisis has led to increased demand for reverse osmosis (RO) desalination technology. In response to the rising global temperatures, there is a growing focus on renewable energy sources such as solar photovoltaic (PV) and wind energy to power small-scale RO plants. This paper presents a comprehensive techno-economic analysis of stand-alone photovoltaic reverse osmosis (PV-RO)
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The Initial ash deposition formation in horizontal combustion reactor for blending torrefied biomass wood pellets and coals Renew. Energy (IF 8.7) Pub Date : 2024-03-09 Dae-Gyun Lee, Ji-Hwan Lee, Gyeong-Min Kim, Jae-Seong Jeong, Seung-Mo Kim, Chung-Hwan Jeon
In response to global warming, the world power plant plans to consistently phase out coal-fired power generation or replace coal with biomass such as wood pellets. However, when the biomass is used itself as a fuel, it is hard to be grounded because of the internal structure. To solve these problems of biomass the torrefaction is the one of the technologies which can enhances the grindability and energy
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Modeling the Nexus between geopolitical risk, oil price volatility and renewable energy investment; evidence from Chinese listed firms Renew. Energy (IF 8.7) Pub Date : 2024-03-09 Dong Zhao, Muhammad Sibt e-Ali, Muhammad Omer Chaudhry, Bakhtawer Ayub, Muhammad Waqas, Irfan Ullah
Improving energy efficiency and investing in renewable sources are key influential factors that may lead to sustainable results from climate change policies. Using the data from Chinese listed companies, this study intends to find the impact of green financing, oil price volatility, and geopolitical risk in dealing with renewable energy investment. Therefore, this study used OLS and two-stage IV-GMM
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Enhanced charge separation and hole injection of Ti–Fe2O3 photoanode by ultrathin CoCu-MOFs for efficient photoelectrochemical water oxidation Renew. Energy (IF 8.7) Pub Date : 2024-03-09 Kaikai Ba, Yunan Liu, Hongda Li, Yanhong Lin, Dejun Wang, Tengfeng Xie, Jun Li
Cobalt-based metal-organic frameworks (Co-MOFs) are considered excellent cocatalysts for improving the photoelectrochemical performance of photoanodes. Considering the boundedness of monometallic MOFs, introducing a second metal is an efficient method to enhance the activity and stability of Co-MOFs. In this work, Cu doped Co-MOFs was successfully decorated on Ti–FeO to prepare Ti–FeO/CoCu-MOF. The
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Wave power extraction from a wave farm of tubular structure integrated oscillating water columns Renew. Energy (IF 8.7) Pub Date : 2024-03-09 Siming Zheng, Simone Michele, Hui Liang, Gregorio Iglesias, Deborah Greaves
To efficiently utilize the abundant wave power in the ocean, it is necessary to deploy a wave farm. This paper considers a wave farm of oscillating water columns (OWCs) integrated into tubular structures. Each OWC device within the wave farm is constructed with a vertical tubular design, incorporating a partially open submerged side that faces the sea. At the top of each device, an air turbine is installed
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Optimal design of a renewable hydrogen production system by coordinating multiple PV arrays and multiple electrolyzers Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Jing Wang, Lixia Kang, Yongzhong Liu
In the design of a renewable hydrogen production system (RHPS), it is of great significance to coordinate the power generation and electrolyzers for efficient and stable hydrogen production. To investigate the coordination and complementary characteristics of multiple PV arrays and multiple electrolyzers in the optimal design of RHPS, a coordinated design approach based on mathematical optimization
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Experimental and theory study on a stacked piezoelectric energy harvester for pressure pulsation in water hydraulic system Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Tongrui Xian, Yifei Xu, Chen Chen, Xiaohui Luo, Haixia Zhao, Yongtao Zhang, Weijie Shi
A novel stacked piezoelectric energy harvester is proposed to solve the sustainable power supply problem of wireless sensors in water hydraulic system, and two energy conversion models are established. The effects of connection modes and pressure pulsation parameters on the energy harvesting performance are studied. The results show that the model without considering the influence of electric field
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Numerical analysis on ammonia decomposition for hydrogen production in a membrane reactor assisted by a parabolic trough solar collector Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Qinghua Yu, Rui Ao, Fuwu Yan, Xuan Liu, Yongliang Li
Ammonia (NH) has emerged as a promising hydrogen storage carrier due to its considerable hydrogen storage density, storage and transportation convenience, and zero carbon emissions during endothermic decomposition. By utilizing a parabolic trough solar collector to provide heat and integrating NH decomposition with a membrane reactor, a clean and sustainable method of hydrogen production can be achieved
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Theoretical and experimental study of the effect of biomass based organic packing wettability on the LDDS and its life cycle analysis Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Sampath Suranjan Salins, Shiva Kumar, Sawan Shetty, R. Raghavendra
Present study aimed at the fabrication of a counter flow dehumidifier unit using biomass-based organic materials like coconut coir and wood shave as packing alternatives. The wettability of these packings is evaluated by arranging them structurally and their influence on the dehumidification performance has been experimentally studied. A prediction-based mathematical model is constructed to simulate
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Best-case-aware planning of photovoltaic-battery systems for multi-mode charging stations Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Marcos Tostado-Véliz, Ahmad Rezaee Jordehi, Yuekuan Zhou, Seyed Amir Mansouri, Francisco Jurado
The proliferation of charging stations entails multiple challenges for power systems. In this regard, the installation of photovoltaic-battery systems may help to mitigate the negative effects of charging points. However, such assets should be carefully planned, paying attention to economic aspects, principally. Most of existing works optimize the photovoltaic-battery system in charging infrastructures
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Process optimization of chemical looping combustion of solid waste/biomass using machine learning algorithm Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Z.T. Yaqub, B.O. Oboirien, H. Leion
Chemical Looping Combustion (CLC) is a carbon capture technology that uses an oxygen carrier to transfer the oxidizing agent to the fuel for combustion. This study used different machine learning algorithms, Artificial neural network and Response surface methodology to estimate the surface region process performance and optimize the process condition for the CLC of different solid fuels waste paper
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Numerical analysis of 3D hydrodynamics and performance of an array of oscillating water column wave energy converters integrated into a vertical breakwater Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Eric Didier, Paulo R.F. Teixeira
Performance and hydrodynamics of an array of Oscillating Water Column (OWC) Wave Energy Converter (WEC) integrated into a vertical breakwater is studied. The FLUENT® software, in which the numerical model is based on the Reynolds-Averaged Navier-Stokes equations and the Volume of Fluid method for free surface flow modeling, is used in a 3D numerical wave tank. Three vertical breakwater configurations
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GIS-AHP-GAMS based analysis of wind and solar energy integration for addressing energy shortage in industries: A case study Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Ali Abdi, Fatemeh Razi Astaraei, Nahid Rajabi
Industries have suffered significant financial losses due to inadequate electricity supply. This article proposes using renewable energies to address the energy shortage issue in an industrial area in Iran. A GIS-AHP-GAMS approach is used to assess wind and solar energy potentials based on 11 criteria to determine suitable areas for constructing a power plant. An optimization problem is solved using
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Advantages of dual CO2 & O2 adsorption model for assessment of micropore development in biochar during two-stage gasification Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Agnieszka Korus, Jacek Jagiello, Claus Dalsgaard Jensen, Zsuzsa Sárossy, Giulia Ravenni, Lidia Benedini
Residual biochar has the potential to replace commercial carbons even in highly specialised applications, presuming further advances in the engineered biochar production. Optimising biomass conversion requires dynamic feedback on the resultant char porosity, but investigation of pore size distribution (PSD) in pyrogenic carbons is challenging due to their extremely ultramicroporous nature. The most
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Exergetic, sustainability and exergoeconomic analyses of a fully photovoltaic-powered heat pump tumble dryer Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Halil Atalay, Cüneyt Tunçkal, Sunay Türkdoğan, Mehmet Direk
In this study, the experimental performance of a commercial heat pump tumble dryer (HPTD) system integrated with photovoltaic (PV) was evaluated using energy and exergy analysis. Additionally, a sustainability and exergoeconomic performance analysis of system components was conducted to identify components in need of improvement. The energy consumption of the HPTD was recorded using a power quality
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Dynamic and optimal ash-to-gas responses of oxy-fuel and air combustions of soil remediation biomass Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Zhibin Chen, Li Wang, Zhiwei Huang, Ping Zhuang, Yiguang Shi, Fatih Evrendilek, Shengzheng Huang, Yao He, Jingyong Liu
Given the global agenda of how to best meet carbon targets, how to scientifically and safely dispose post-harvest phytoremediation biomass on a large scale remains to be explored. This study sought to characterize the temperature-dependent ash-to-gas responses of the oxy-fuel (CO/O) and air (N/O) combustions of (PG). The two indices of thermal stability () and comprehensive combustion () were weaker
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Insights of Pichia kudriavzevii SVMS2019 for cellulase production and fermentation into ethanol Renew. Energy (IF 8.7) Pub Date : 2024-03-08 Merlin Sobia Poomani, Iyyadurai Mariappan, Krishnaveni Muthan, Venkatesh Subramanian
The use of lignocellulosic biomass to produce value-added products, such as fuel ethanol, is a current priority for global biobased economy. The quest to explore novel microbes, such as yeasts, to attain sustainable products for an ever-growing population has become highly in demand. This study might be the first to explore the rumen yeast vzevii SVMS2019 for cellulase production to efficiently utilize
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Global design methodology for semi-submersible hulls of floating wind turbines Renew. Energy (IF 8.7) Pub Date : 2024-03-07 Wei Li, Shuaishuai Wang, Torgeir Moan, Zhen Gao, Shan Gao
Designing the support structures for floating wind turbines (FWTs) involves a step-by-step process, typically in three phases, i.e., starting from concept selection and determining the overall dimensions for a given configuration, and finally, determining the detailed specifications. The global design of the hull is used to select the floater concept and determine the global dimensions for the subsequent
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Multi-objective genetic algorithm approach for enhanced cumulative hydrogen and methane-rich syngas emission through co-pyrolysis of de-oiled microalgae and coal blending Renew. Energy (IF 8.7) Pub Date : 2024-03-07 Shweta Rawat, Lokesh Wagadre, Sanjay Kumar
Towards establishing low-carbon bio-economy, the energy-rich syngas is considered a global energy carrier. Targeting hydrogen as a promising advanced fuel, the significance of methane also increases due to its direct conversion capability into hydrogen. The current study aims to use a co-pyrolysis-based valorization of de-oiled microalgae and low-rank coal blend to generate H and CH rich syngas. Pyrolysis
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Assessing the economic viability of BESS in distributed PV generation on public buildings in Brazil: A 2030 outlook Renew. Energy (IF 8.7) Pub Date : 2024-03-07 G.X.A. Pinto, H.F. Naspolini, R. Rüther
This paper proposes a method to assess the financial attractiveness provided by adding a Battery Energy Storage System (BESS) in distributed photovoltaic (PV) generation on public buildings in Brazil. The method is applicable to prosumer units (PU) connected on the medium voltage grid operating under time-based electricity tariffs. The BESS primary objective was to achieve optimal reductions in electric
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A new shared energy storage business model for data center clusters considering energy storage degradation Renew. Energy (IF 8.7) Pub Date : 2024-03-07 Yifan Bian, Lirong Xie, Jiahao Ye, Lan Ma
In recent years, the energy consumption of data centers (DCs) has shown a sharp upward trend. Given the high investment cost of energy storage, this study introduces the concept of energy sharing within a data center cluster (DCC) and proposes a novel shared energy storage (SES) business model. The model realizes the co-optimization for DCC and SES and is divided into three main layers. Firstly, considering
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Continuous power imbalance assessment from multi-area economic dispatch models Renew. Energy (IF 8.7) Pub Date : 2024-03-07 Henrik Nordström, Lennart Söder, Robert Eriksson
To be able to efficiently maintain a continuous balance between supply and demand in power systems with high shares of variable renewable energy (VRE) sources, a variety of studies related to the topic are needed. A fundamental input parameter for such studies is an assessment of the power system’s physical needs for balancing power, in form of power imbalances. This article presents a new model for
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Efficient ethanol production from masson pine sawdust by various organosolv pretreatment and modified pre-hydrolysis simultaneous saccharification and fermentation Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Xinyu Xie, Kai Song, Jing Wang, Jinguang Hu, Shufang Wu, Qiulu Chu
Pretreatment is a key step in lignocellulosic biorefinery. In this study, the combination of organosolv pretreatment and lignin repolymerization inhibitor was put forward to fractionate the lignocellulosic biomass, providing readily hydrolyzed substrate. Results showed that, acidic 1,4-butanediol pretreatment extensively removed lignin from softwood, reducing the physical blockage effect of lignin
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Optimization design of a hybrid thermal runaway propagation mitigation system for power battery module using high-dimensional surrogate models Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Wencan Zhang, Xingyao Li, Guote Liu, Nan Ouyang, Jiangfeng Yuan, Yi Xie, Weixiong Wu
The demand for high energy density in lithium-ion battery packs for electric vehicles poses a challenge to maintaining its optimum operating temperature while reducing the risk of thermal runaway (TR) propagation. This study proposes a novel hybrid TR propagation mitigation system that balances heat transfer and thermal insulation requirements using low and high thermal conductivity phase change materials
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Ultrasound-assisted dispersion of bifunctional CaO-ZrO2 nanocatalyst over acidified kaolin for production of biodiesel from waste cooking oil Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Iman Ghasemi, Mohammad Haghighi, Ensie Bekhradinassab, Alireza Ebrahimi
The work aimed to produce biodiesel from waste cooking oil (WCO) using a novel catalyst from acid-modified kaolin with ZrO and CaO. The catalyst was created by acid-treatment of kaolin and then impregnating kaolin with ZrO as an acid-active-component and CaO as a base-enhancer. Ultrasound was applied to disperse promoters on kaolin(T) and improve specific-surface-area and pore-volume. XRD, FESEM, FTIR
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Combination of microwave with acid deep eutectic solvent pretreatment for reed (Phragmites australis) fractionation Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Qiuli Xia, Lin Zhang, Peng Zhan, Zhaohui Tong, Yan Qing, Jiaying He, Zhiping Wu, Hui Wang, Lishu Shao, Na Liu
The cost-effective and low-carbon fractionation of lignocellulosic biomass will enhance the economic viability of bio-refining. To achieve efficient reed fractionation under favorable conditions, microwave-assisted choline chloride and -toluene sulfonic acid (M-ChCl/-TsOH) pretreatment was employed. The fractionation of reed components demonstrated higher effectiveness with M-ChCl/-TsOH pretreatment
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Energy performance analysis of solar assisted gas-fired boiler heating system for floating roof oil tank Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Yangyang Wu, Wenfei Yao, Fanbin Meng, Di Wang, Xuefeng Zhao, Lan Meng, Müslüm Arıcı, Dong Li
An innovative solar assisted gas-fired boiler heating system for floating roof oil tank is proposed to achieve the low carbonization of the conventional crude oil heating method. However, the dynamic energy transport performance of the proposed heating system affected by the key engineering parameters (crude oil capacity load, mass flow rate of heat transfer fluid (HTF), crude oil initial temperature)
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Effect of the irradiation intensity on the photo-thermal conversion performance of composite phase change materials: An experimental approach Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Shaoliang Zhang, Shuli Liu, Zhiqi Xu, Hongkuan Chen, Jihong Wang, Yongliang Li, Sheher Yar Khan, Mahesh Kumar
Composite phase change materials (CPCM) containing photo absorbers are regarded as promising conversion and thermal energy storage materials for solar energy. Understanding the impact of irradiation intensity on the photo-thermal conversion process is of crucial significance for improving the photo-thermal conversion efficiency (PTCE) of CPCM. However, previous studies have overlooked the evolution
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Optimization of reactor parameters for amplifying synergy in enzymatic co-hydrolysis and microbial co-fermentation of lignocellulosic agro-residues Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Sourav Mondal, Swati Neogi, Saikat Chakraborty
This study provides an experimental framework for optimizing reactor parameters to amplify synergy in the co-hydrolysis of holocellulose from delignified agro-residue (), followed by co-fermentation of sugars to bioethanol in a Separate Co-hydrolysis and Co-fermentation (SCHCF) system. The optimal reactor conditions that result in 83% yield of reducing sugars from holocellulose are obtained as: holocellulose
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Enhancing ground source heat pump system design optimization: A stochastic model incorporating transient geological factors and decision variables Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Zilong Zhao, Guoquan Lv, Yanwen Xu, Yu-Feng Lin, Pingfeng Wang, Xinlei Wang
In this study, a cost minimization model of a ground source heat pump (GSHP) was performed to obtain its best design configurations based on system reliability. To implement a high-fidelity optimization, the uncertainties of decision parameters and geological parameters' distributions were considered. The GSHP's lifespan costs were functionalized based on an analytical borehole heat transfer model
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Utmost substance recovery and utilization for integrated technology of air separation unit and liquid air energy storage and its saving benefits Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Xiufen He, Wei Guo, Yunong Liu, Zhongqi Zuo, Li Wang
The integration of air separation units (ASUs) and liquid air energy storage (LAES) (ASU-LAES) can bring very good economic benefits based on their resource complementarity at the same low-temperature energy level. Two types of novel process flows are proposed in this paper for ASU-LAES. These flows can use the ASU to recover the maximum amount of refrigerated air from energy storage process to the
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A new semi-analytical model for studying the performance of deep U-shaped borehole heat exchangers Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Yanzhong Liang, Bailu Teng, Wanjing Luo
In deep geothermal exploitations, the U-shaped borehole heat exchanger (UBHE) has a longer fluid retention time and a larger contact area with the formation. In order to improve the utilization efficiency of geothermal energy, it is becoming increasingly important to accurately evaluate the performance of the deep UBHEs. In this study, the authors develop a new semi-analytical model for characterizing
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Feasibility study: Economic and technical analysis of optimal configuration and operation of a hybrid CSP/PV/wind power cogeneration system with energy storage Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Yulong Xiao, Chongzhe Zou, Mingqi Dong, Hetian Chi, Yulin Yan, Shulan Jiang
In this study, a hybrid photovoltaic-wind-concentrated solar power renewable energy system and two cogeneration models are proposed. Evaluation criteria are employed, including the levelized cost of energy (LCOE) and the loss of power supply probability (LPSP). The optimal configuration and dynamic dispatch strategy of the hybrid system are determined through multi-objective optimization using the
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Thermodynamic analysis of a coupled system based on total flow cycle and partially evaporated organic Rankine cycle for hot dry rock utilization Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Zengli Wang, Hua Shao, Mingcheng Shao, Zeyu Dai, Rao Zhang
The total flow cycle (TFC) has a great potential to improve efficiency of geothermal energy utilization. However, it can not fully utilize the heat source due to the limited expansion ratio of the two-phase expander. To solve the problem, a coupled system of TFC and partially evaporated organic Rankine cycle (TFC-PEORC) is proposed. The thermodynamic model considering the pinch point location migration
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Evaluating hydraulic dissipation in a reversible mixed-flow pump for micro-pumped hydro storage based on entropy production theory Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Ji Pei, Jiawei Shen, Wenjie Wang, Shouqi Yuan, Jiantao Zhao
The promotion of renewables improves energy security but degrades the electricity quality and grid stability. This paradox can be resolved by enlarging the capacity of pumped hydro storage. Although high-head hydropower resources have been exhausted, untapped low-head resources are ideal alternatives and are utilized for micro-pumped hydro storage. Instead of the miniaturized pump-turbine or pump as
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Unveil the role of engineering parameters on hydrogen recovery in deep saline aquifer, Rock Springs Uplift, Wyoming Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Heng Wang, Yuchen Xin, Zuhao Kou, Chunyu He, Yunfei Li, Tongtong Wang
Hydrogen (H₂), as a renewable energy source, holds immense importance in energy conversion and storage. Among various methods, underground hydrogen storage (UHS) stands out, especially during high energy demand in winter, owing to the vast subsurface reservoirs. This study aims to uncover the impact of engineering constraints on H₂ storage conditions and recovery processes. To begin, a geological model
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Influence of shunt currents in industrial-scale alkaline water electrolyzer plants Renew. Energy (IF 8.7) Pub Date : 2024-03-06 Georgios Sakas, Alejandro Ibáñez-Rioja, Santeri Pöyhönen, Antti Kosonen, Vesa Ruuskanen, Pertti Kauranen, Jero Ahola
The aim of this paper is to analyze through simulation how the energy efficiency of a single electrolysis stack at various loads is affected by shunt currents and to determine the energy-optimal load distribution between lines in a multiline electrolysis system under various magnitudes of shunt current losses. A dynamic energy and mass balance model of an industrial , alkaline water electrolyzer (AWE)
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Bioaugmentation strategies based on bacterial and methanogenic cultures to relieve stress in anaerobic digestion of protein-rich substrates Renew. Energy (IF 8.7) Pub Date : 2024-03-05 Sara Agostini, Luca Bucci, Davide Doni, Paola Costantini, Ameya Gupte, Bettina Müller, Fabrizio Sibilla, Marina Basaglia, Sergio Casella, Panagiotis G. Kougias, Stefano Campanaro, Lorenzo Favaro, Laura Treu
Anaerobic co-digestion of protein-rich substrates is a prominent strategy for converting valuable feedstocks into methane, but it releases ammonia, which can inhibit the overall process. This study developed a cutting-edge combined culturomic and metagenomic approach to investigate the microbial composition of an ammonia-tolerant biogas plant. Newly-isolated microorganisms were used for bioaugmentation