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CFD analysis and comparison of conventional type and perforated plate type Shell tube heat exchangers Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-04-28 Ahmet Talat İnan,Hasan Köten,Mehmet Akif Kartal
Abstract The baffle plate is the most important elements affecting not only the thermal efficiency but also hydraulic performance of Shell-tube heat exchangers which can be designed in different types today and can be put into the production phase. Different designs of baffle plates are closely related to thermal performance with pressure drop as well. In this investigation, the design geometry of
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Research on offshore wind power system based on internet of things technology Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-04-20 Fen Zhou,Xuping Tu,Qingdong Wang
Abstract Wind power generation is considered as one of the very promising new energy power generation methods. Offshore wind farms are usually located in open spaces far from the coast, where the wind is strong enough to generate electricity efficiently and reliably. The operation and maintenance of offshore wind power generation is more important, it will greatly affect the life cycle cost, although
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Dynamic analysis of biodiversity, carbon storage and environmental factors of coniferous forest in Loudi City, Hunan Province Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-04-19 You Zhou,Jiyun She,Xiongmei Zhu
Abstract Analyzation the dynamics of biodiversity, carbon storage and environmental factors of coniferous forest in Loudi, Hunan Province is meaningful, determination the aboveground and underground carbon storage, plant diversity and environmental factors of multiple plant communities in Loudi, Hunan Province among different succession stage are of great significance to effectively clarify the distribution
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Novel method for microencapsulation of eutectic hydrated salt as a phase change material for thermal energy storage Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-04-19 Xianliang Huo,Donghuan Xie,Zimo Zhao,Shujun Wang,Fanbin Meng
Abstract Inorganic hydrated salts have many advantages over organic phase change materials, such as higher thermal storage density, low cost, nontoxicity and nonflammability. In this research, microcapsules loaded eutectic hydrated salt (EHS) as the core material was fabricated via coacervation method at room temperature, with ethyl cellulose (EC)/Acrylonitrile-Butadiene-Styrene (ABS) as the shell
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Spatial–temporal characteristics and scenario simulation of carbon emissions from energy consumption based on multiscale in the affected areas of the lower Yellow River Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-03-22 Zhenyue Liu,Dan Yang,Pengyan Zhang,Ling Jiang,Yanyan Li,Tianqi Rong,Meiling Song
Abstract The future development of the world is threatened due to global warming and climate change mainly driven by carbon emissions. Conducting an extensive study on the influencing factors of regional energy consumption and prediction through scenario simulation is of great significance for China in order to meet its aim of achieving carbon peak by 2030. The affected areas of the lower Yellow River
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Potential for renewable energy assisted harvesting of potatoes in Scotland Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-03-01 Muneer T, Dowell R.
AbstractDepleting energy resources, enhancing energy-security, energy-access and approaching climate change related challenges are some of the present day challenges. Against this backdrop, Renewable Energy (RE) based farming has been a topic of serious discussion within Great Britain and Scotland.There are multiple advantages in the development and applications of RE micro-grids for farming communities
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Performance test of medium temperature chiller with induction air-conditioning system Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-03-01 Hong Y, Wang G, Wang Z.
AbstractIn this paper, medium temperature chiller with induction air-conditioning system is introduced. Several onsite measurements were carried out on temperature & relative humidity distribution and energy consumption in summer 2020 in order to study the potential performance when applied in hot summer cold winter zone. The performance test results show that (1) the indoor temperature and humidity
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A energy efficiency solution based on time series data mining algorithm on elementary school building Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-03-01 Gong Q, Liu X, Zeng Y, et al.
AbstractThe purpose of this study is to conduct data mining research on the time series energy consumption data set of primary school buildings. Researches done so far mainly focused on cluster analysis and association analysis. In this article, python language is used as the carrier, K-shape algorithm and Apriori algorithm are adopted to perform cluster analysis and association analysis on the time
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Application evaluation of passive energy-saving strategies in exterior envelopes for rural traditional dwellings in northeast of Sichuan hills, China Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-03-01 Hou J, Zhang T, Liu Z, et al.
AbstractWith the increase of residents’ requirements for the living environment, the current indoor thermal environment cannot meet the needs of modern rural residents who live in the northeast of Sichuan, China. Passive energy-saving strategies can not only improve the thermal performance of envelopes but also create high economic benefits. Evaluating the application effect of passive energy-saving
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Effect of calcination on the adsorption of Chifeng zeolite on Pb2+ and Cu2+ Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-03-01 Chen X, Tao J, Sun P, et al.
AbstractAs an important non-metallic mineral resource, zeolite is widely used in many fields. In this paper, natural zeolite from Chifeng, Inner Mongolia, was selected as the experimental material, and the calcination effect of the sample was studied in detail. The zeolite sample undergoes complex changes during the calcination process. The higher the calcination temperature, the smaller the specific
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Experimental investigation of hot water cogeneration using a carbonizer fit out with a preheating system Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-03-01 KPELOU P, MANI KONGNINE D, ASSE R, et al.
AbstractCarbonization is a thermochemical process which generates thermal energy and charcoal. The system allowing to recover the heat energy for co, tri and multi-generation are currently more investigated. The use of multi generation systems is beneficial from the standpoint of increasing the usage of biomass, energy efficiency and reducing the impact on forests.The aim of this article was to design
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Modeling carbon dioxide emission of countries in southeast of Asia by applying artificial neural network Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-03-01 Birjandi A, Alavi M, Salem M, et al.
AbstractEnergy and economy play a substantial role in environmental issues such as the emission of greenhouse gases. ${CO}_2$ is one of the greenhouses that is hugely produced in industrial processes and other human being activities. The major share of ${CO}_2$ emission is related to the energy-related activities. As a result,, modeling the amount of produced ${CO}_2$ by utilization of different energy
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Multi-criteria decision-making approach for the selection of cleaning method of solar PV panels in United Arab Emirates based on sustainability perspective Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-03-01 AlMallahi M, Assad M, AlShihabi S, et al.
AbstractSolar power has become one of the most essential sources in the move to clean energy production. It plays a vital role in providing environmental, social and economic benefits. As a result, the solar panels must be cleaned consistently. There are several cleaning methods, including passive, active and manual cleaning. In this paper, multi-criteria decision making (MCDM) method Technique for
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Investigation on the indoor thermal comfort in sports settings and an improvement to Fanger model Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-03-01 Ji T, Cai J, Wang K.
AbstractPlayer in sports is characterized as large metabolic rate and perspiration, small thermal resistance, low coverage rate of clothing, and short breath. The heat transfer from the player to environment is generally strong. It is difficult to accurately predict the thermal comfort of the player in strenuous sports based on the traditional Fanger’s model. To overcome this limitation, an improved
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Applications of solar PV tree systems with different design aspects and performance assessment Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-03-01 Cuce P, Saxena A, Cuce E, et al.
ABSTRACTSolar energy is deemed as the most abundant, reliable, eco-friendly and totally free resource of energy. There is a wide range of techniques to harness solar energy for different purposes. Among all the available methods, direct conversion of sunlight into electricity through photovoltaic (PV) phenomenon is the most mature and popular process. Progress of PV technology in market is perspicuous;
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A preliminary experimental study of a novel incorporation of chilled ceiling with phase change materials and transparent membrane cover Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-02-28 Riffat J, Kutlu C, Tapia-Brito E, et al.
AbstractThis study presents an experimental investigation into a novel incorporation of chilled ceiling with transparent membrane cover and phase-change material (PCM) to form a new type of PCM chilled ceiling panel. The membrane cover is infrared transparent to facilitate radiant cooling, but serves as a barrier of convection to avoid moisture condensation for applications in humid climate regions
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Model analysis of energy consumption data for green building using deep learning neural network Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-29 Yu M, Li L, Guo Z.
AbstractThe purposes are to solve the defects of traditional backpropagation neural network (BPNN), such as inclined local extremum and slow convergence, as well as the incomplete data acquisition of building energy consumption (EC). Firstly, a green building (GB)-oriented EC data generation model based on generative adversarial networks (GANs) is implemented; GAN can learn the hidden laws of raw data
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Energetic and financial analysis of solar landfill project: a case study in Qingyuan Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-27 Gu G, Song Z, Lu B, et al.
AbstractLandfilling is the most commonly used option for waste disposal in China but occupies massive land resources and solar landfills could be a win-win solution by installing photovoltaic (PV) systems on the closed landfills. This paper theoretically studies the feasibility of solar landfills and compares two possible PV technologies, which are polycrystalline silicon (p-Si) and thin film PVs,
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Irreversibility analysis of induced swirl flow inside the pipes of flat-plate solar collector using dual tangential nozzles Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-27 Cao Y, Ayed H, Issakhov A, et al.
AbstractIn the present research, dual-nozzle swirl generator was installed at the blocked end of the straight tube to inject flow tangential to the wall of the pipe with various injection inclinations compared to the longitudinal axis. This causes a swirl flow inside the pipe. Altering some decisive variables, including injection angle, side of nozzle cross-section, pipe diameter, and flow rate, caused
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Investigation of the effects of high-carbon alcohol addition to camelina oil methyl ester on the performance parameters and soot emission of a diesel engine Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-25 Karabektas M, Yilancilar M.
AbstractReasons such as environmental problems and price instability have increased the interest in alternative energy sources. Biodiesel, which is a renewable alternative to diesel fuel, is among the most popular alternative fuels. Biodiesel is a biofuel obtained from the esterification of various oils such as vegetable, animal, waste frying and microalgae oils. In this study, the camelina plant,
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A study of low-carbon development, urban innovation and industrial structure upgrading in China Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-21 Chen M.
AbstractThis paper, based on the panel data of 281 prefecture-level cities in China, applies the difference-in-differences (DID) approach and the propensity score matching DID (PSM-DID) approach to an empirical study on the impacts of the low-carbon pilot program on industrial structure. It concludes that the program has contributed significantly to more rational industrial structures of pilot areas
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Energy, exergy and economic analysis of combined solar ORC-VCC power plant Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-21 Aryanfar Y, Assad M, Khosravi A, et al.
AbstractA renewable energy source, especially solar energy, is one of the best alternatives for power generation in rural areas. Organic Rankine cycle (ORC) can be powered by a low-grade energy source, suitable for small-scale power production in rural areas. This study investigates the combined power generation and cooling system using the combination of ORC and vapor compression cycle (VCC), where
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Study on the performance and mechanism of modified mica for improving polypropylene composites Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-20 Chen X, Zhang T, Sun P, et al.
AbstractPolypropylene (PP) has the most extensive plastics of plastics because of the advantages of simplicity, easy processing, high mechanical properties, high corrosion resistance and abrasion resistance and electrical insulation. The application of PP has limitations in many fields because it is lack of formation shrinkage, low modulus, poor thermal stability, strong gap and low temperature and
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Energy management strategy of hybrid energy storage system based on fuzzy control for ships Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2021-12-29 Hu W, Shang Q, Bian X, et al.
AbstractLithium-ion batteries have high-energy density, but they cannot respond quickly to power fluctuations; supercapacitors (SCs) can quickly respond to power fluctuations, but their energy density is low. The hybrid energy storage system (HESS) that uses both lithium-ion batteries and SCs can take into account the advantages of both, making the system perform better; however, the energy distribution
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Investigation of energy and economic parameters of photovoltaic cells in terms of different tracking technologies Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2021-12-29 Alayi R, Sevbitov A, Assad M, et al.
AbstractThe utilization of photovoltaic (PV) cells has greatly expanded due to the simplicity of technology and cheapness compared to other solar technologies. However, due to the change in the position of the sun, it has reduced the production capacity and electrical efficiency of this technology as the reduction of production capacity to supply electricity has increased investment costs. In this
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Aerodynamic shape optimization of H-VAWT blade airfoils considering a wide range of angles of attack Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2021-12-28 Wang Q, Liu B, Hu C, et al.
AbstractThe current H-type vertical axis wind turbine (VAWT) airfoils are from horizontal axis wind turbine airfoils or symmetry airfoils that are designed at one angle of attack (such as α = 6°) rather than different angles of attack. As a consequence, it cannot, to a certain extent, increase wind power efficiency. Therefore, an optimal method of H-type VAWT blade airfoils in different ranges of angles
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TiO2 nano-coated thin film PV glazing with superior thermal resistance, self-cleaning, electricity generation and adaptive optical control Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2021-12-23 Cuce E, Cuce P, Riffat S.
AbstractA unique nano-coated photovoltaic (PV) glazing technology with superior multifunctional features, thermally resistive PV glazing (TRPVG), is introduced, and for three different configurations of TRPVG (TRPVG-Air12, TRPVG-Ar12, TRPVG-Ar16), UVC/UVA absorption, noise reduction, thermal insulation, electricity generation, visible light and solar radiation control are evaluated through an extensive
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Graph neural network based hydraulic turbine data stream prediction Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2021-12-23 Li N, Ren J, Zhou X, et al.
AbstractAs a kind of green energy with mature technology, hydropower energy is more and more widely used in our real life. As the core equipment of a hydropower station, hydraulic turbine units will experience varying degrees of vibration and aging during the process of power generation. Due to the complex internal structure and the interaction between different components, the analysis and prediction
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Evaluating an active low-energy cooling upgrade to the building envelope in the hot climates of the Middle East Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2021-12-20 Kharrufa S, Awad J, Jung C, et al.
AbstractReducing cooling loads in hot countries requires thermal insulation, and cooling methods be improved. Evaporative cooling, although problematic, is one solution that can be explored since it is significantly more efficient than regular compressor air conditioners, and the net result of using one is cooling. Furthermore, while compressor air conditioner efficiency decreases with rising temperatures
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Research and application progress of transcritical CO2 refrigeration cycle system: a review Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2021-12-08 Yang D, Li Y, Xie J, et al.
AbstractCO2 refrigerant and its transcritical cycle system have become the research focus in the refrigeration field due to their advantages of environmentally friendly, safe and low environmental temperature adaptability. This paper summarizes the research progress on the modified methods for the defects of basic transcritical CO2 refrigeration cycle system in recent years. Meanwhile, the technical
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Cooperative decisions of competitive supply chains considering carbon trading mechanism Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2021-12-02 Li H, Li R, Shang M, et al.
AbstractCarbon emissions trading policy is a market mechanism which promotes global greenhouse gas emissions reduction and reduces global carbon dioxide emissions. The emissions reduction in the supply chain operation has become a hot issue in supply chain management. Thus, this paper studies the optimal cap setting and pricing in chain-to-chain system under carbon emissions trading mechanism. Based
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Research on photovoltaic system MPPT based on IFOINC algorithm Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Yuhe Du,Yu Liao,Yichu Liu,Jianwei Ji
Abstract Aiming at the shortcomings of traditional maximum power point tracking (MPPT) algorithm in photovoltaic system, such as slow tracking speed, easy oscillation and low tracking accuracy, an improved fractional order incremental conductivity (IFOINC) method is proposed. The algorithm combines the variable step-size Peturb and Observe (P & O) method based on power prediction and fractional order
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Parametric study of reflectivity transmittance of materials for potential solar adsorption refrigeration system Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 A R Sowunmi
Abstract One of the most promising alternative energy sources has been recognized as solar energy. Solar energy may be utilized for electricity, solar thermal and power generation directly or indirectly. Sun adsorbing refrigeration systems require adsorbing qualities, which can be produced by concentrated solar energy collectors. Previous research has found that the collector components’ reflectivity
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Research on low-carbon supply chain decision-making under different incentive models Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 XinXin Peng,YuHong Tao,ChunMei Wang,Zhen Zhong
Abstract Considering the low-carbon supply chain led by one manufacturer and followed by one retailer, market demand is influenced by the investment of low-carbon product promotion and the degree of emission reduction. Stackelberg game theory is used to construct the game models with no-incentive model and three incentive models, respectively. The equilibrium solutions of the degree of low-carbon products
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Energy-saving contribution of the thermochromic coating in exterior walls in hot-summer and cold-winter zone Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Xi Meng,Li Meng,Jiahui Wang
Abstract In this study, the improvement efficiency of the thermochromic coating was analyzed comprehensively on the thermal performance of exterior walls by regulating solar radiation absorptivity in the hot-summer and cold-winter zone. The heat transfer model with the dynamic radiation absorptivity was built by The ANSYS 16.0 software, while the heat transfer process of the exterior wall was simulated
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Optimal scheduling of building integrated energy systems using an improved ant lion algorithm Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Liming Wei,Shuo Xv
Abstract In order to deal with the increasingly severe energy shortage problem, to find new energy solutions and to alleviate the dual pressure of domestic energy and environment, building a new type of multi-energy complementary power system has become one of the hot issues in recent years. This paper presents an optimal scheduling model of building integrated energy system (BIES) based on the comprehensive
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Influence of landscape outside the window on the anxiety level of self-separation people during COVID-19 Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Chao Liu,Zhengru Li,Xiaotong Jing,Weijun Gao,Jing Shi,Gangwei Cai,Yan Wang
Abstract Windows are the communication medium between indoor and outdoor, but their influence and the corresponding landscape outside the window are often ignored due to the outdoor frequent activities of people. The coronavirus disease 2019 (COVID-19) has been a better choice to show the window performance, especially for the anxiety level alleviation of people isolated at home. A national survey
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Artificial intelligence for water–energy nexus demand forecasting: a review Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Alya A Alhendi,Ameena S Al-Sumaiti,Feruz K Elmay,James Wescaot,Abdollah Kavousi-Fard,Ehsan Heydarian-Forushani,Hassan Haes Alhelou
Abstract Demand forecasting is an essential stage in the plan and management of resources for water and electrical utilities. With the emerging of the concept of water–energy nexus and the dependence of both resources on each other, intelligent approaches are needed for such resources’ prediction in smart communities. Over the past few decades, extensive research has been devoted to develop or improve
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Experimental and simulation performance optimization of an exhaust air heat recovery heat pump unit Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Zhiyi Wang,Xiaohong Lu,Gaoyuan Wang
Abstract In order to optimize the performance of exhaust air heat recovery heat pump unit (EAHRHPU), Simulink system simulation and Simulink-M file optimization model were established in this paper to study the performance of the unit in variable outdoor air conditions by combining experiment. Finally, the optimal performance of coefficient and the corresponding optimal bypass fresh air flow rate of
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An algorithm to assess the heating strategy of buildings in cold climates: a case study of Germany Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Abdur Rehman Mazhar,Yuliang Zou,Cheng Zeng,Yongliang Shen,Shuli Liu
Abstract Two-thirds of the final energy consumption of the EU residential sector goes towards space heating of buildings, yet a huge portion of the population still suffers from energy poverty. Identifying optimum heating strategies of current buildings would be a solution to this crisis, which is the main aim of the developed algorithm in this research. The algorithm incorporates a modified version
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Ecological footprint of energy and waste generation for environmental sustainability in Ijebu Ode, Ogun State, Nigeria Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Edet Otto,Henry Sawyerr
Abstract The aim of this study was to evaluate the Ecological Footprint of Energy and Waste generation in Ijebu Ode, and the study adopted descriptive cross-sectional design and data were collected from 400 systemically sampled households through structured questionnaires and analysed using descriptive statistics and inferential statistics. The findings revealed that water has the highest ecological
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Energy and exergy analysis of a hot dry rock geothermal resource power generation system based on organic Rankine cycle Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Yuan Zhao,Huida Huang,Xin Zhang,Chao Ye,Yuanjuan Tang,Jingqian Huang,Jun Zhao,Guanqun Luo
Abstract Hot dry rock is an abundant, stable and low-carbon geothermal resource, which has a promising prospect for power generation in China. In this paper, a hot dry rock power generation system model based on conventional organic Rankine cycle was established. The performance of the system was evaluated by thermodynamic analysis, as well as energy and exergy analyses. Four types of organic working
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Study on the performance and economy of the building-integrated micro-grid considering photovoltaic and pumped storage: a case study in Foshan Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Haitao Sun,Qingzheng Ren,Jili Hou,Zimo Zhao,Donghuan Xie,Wei Zhao,Fanbin Meng
Abstract Micro-grid is a promising technology for the energy reform in urban areas. This paper takes a building as a case study to construct a micro-grid system, which includes rooftop photovoltaic and pumped storage systems according to the characteristics of the building. Moreover, the cost–benefit analysis of the commercial building micro-grid system is also performed to obtain an in-depth understanding
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Assessment of the performance of solar water heater: an experimental and theoretical investigation Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Naseer T Alwan,Milia H Majeed,Ihsan M Khudhur,S E Shcheklein,Obed M Ali,Salam J Yaqoob,Reza Alayi
Abstract This study aims to evaluate the performance of a flat plate solar water heater (SWH) theoretically and experimentally. The thermal performance of the SWH was predicted using Fortran 90 programming language. SWH was designed as a square shape with dimensions of 110 cm length, 120 cm width and 10 cm depth and tested by integrating with a modified solar distiller to increase the water temperature
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Ecopump: a novel thermoelectric heat pump/heat recovery ventilator system for domestic building applications Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Qi Xu,Shihao Zhang,Saffa Riffat
Abstract In recent years, there has been a risen interest in heat recovery systems for building applications due to concerns about the energy crisis and global climate change. In this paper, the intention to understand the performance of a window thermoelectric heat pump/heat recovery system (Ecopump) for heating has been developed. An overview to the prototype design, heat transfer model, experimental
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A 1D linearization–based MILP–NLP method for short-term hydrothermal operation Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Chuanxiong Kang,Shaofei Wu,Eid Gul,Xiang Yu,Pingan Ren
Abstract The scheduling and optimization of short-term hydrothermal operation utilize the water resources efficiently and magnify the benefits of hydro energy while reducing the fuel and operation cost of thermal power plants. Short-term hydrothermal operation is a complex non-linear and non-convex optimization problem, which reflects thermal valve point effects, load balances, generation bounds and
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Evaluation of the gas turbine unit in the Kirkuk gas power plant to analyse the energy and exergy using ChemCad simulation Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Sara A Salah,Ehsan F Abbas,Obed Majeed Ali,Naseer T Alwan,Salam J Yaqoob,Reza Alayi
Abstract The purpose of the study is to evaluate the thermal performance of the gas turbine unit represented by (K3) under actual weather conditions by applying the first and second laws of thermodynamics, the design production of the unit (283.6 MW) at standard conditions (1 bar) and temperature (15) Celsius, which included the analysis of the unit energy and available energy. Hence, to find out the
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Creating a post-pandemic sustainable environment in the context of technical and reputational business transformation Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Iman Ibrahim,Daria Tkachenko,Dmitry Gura,Tatyana Sakulyeva
Abstract The purpose of this article is to propose a new design for a sustainable built environment using a specific business system as an example that transforms and implements modular systems and ultraviolet (UV) lighting to prevent the spread of infectious agents after COVID-19, which directly affects the ability of some types of businesses to function. The paper explores the possibility of purchasing
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Research on photovoltaic system MPPT based on IFOINC algorithm Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Yuhe Du,Yu Liao,Yichu Liu,Jianwei Ji
Abstract Aiming at the shortcomings of traditional maximum power point tracking (MPPT) algorithm in photovoltaic system, such as slow tracking speed, easy oscillation and low tracking accuracy, an improved fractional order incremental conductivity (IFOINC) method is proposed. The algorithm combines the variable step-size Peturb and Observe (P & O) method based on power prediction and fractional order
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Effect of desiccation on ashcrete (HSDA)-treated soft soil used as flexible pavement foundation: zero carbon stabilizer approach Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Kennedy C Onyelowe,Sylvain Tome,Ahmed M Ebid,Thompson Usungedo,Duc Bui Van,Roland K Etim,Ifeanyi C Onuoha,Imoh C Attah
Abstract The potential of using ashcrete to improve the microstructural, microspectral and shrinkage properties of expansive soils has been investigated under laboratory conditions. In addition to microstructural, three chemical modulus (TCM) and microspectral examinations, responses to linear shrinkage, volumetric shrinkage and crack width were also investigated using 30-day drying periods for expansive
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Utilization of hydrogen in gas turbines: a comprehensive review Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Mohammad Alhuyi Nazari,Morteza Fahim Alavi,Mohamed Salem,Mamdouh El Haj Assad
Abstract The concerns regarding the consumption of traditional fuels such as oil and coal have driven the proposals for several cleaner alternatives in recent years. Hydrogen energy is one of the most attractive alternatives for the currently used fossil fuels with several superiorities, such as zero-emission and high energy content. Hydrogen has numerous advantages compared to conventional fuels and
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Research on energy management strategy of photovoltaic–battery energy storage system Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Zheng Wang,Yanli Xiao,Ye Wan,Ke Liu,Xiyuan Wang
Abstract Photovoltaics have the advantages of being clean and renewable and have gained a wide range of applications. It is promising to use photovoltaic energy for the power supply of buildings, as the building sector accounts for a large portion of global energy consumption with a constantly increasing trend. However, photovoltaics are greatly affected by time and environment, and it is usually combined
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Catalytic biomass gasification of sawdust: integrated experiment investigation with process modeling and analysis Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Weijuan Lan,Huiling Ding,Xin Jin,Dongxue Yin,Yingxian Wang,Jiangtao Ji
Abstract This paper reports on the investigation of the gasification from biomass using a laboratory scale fluidized bed gasifier. Main influencing factors, such as the temperature, steam flow rate and CaO to biomass mass ratio were studied. A model was developed for hydrogen-rich gas production from biomass via using ASPEN PLUS software. Sawdust was used as raw material for this study. Different operating
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An integrated CCU-plant scheme and assessment for conversion of captured CO2 into methanol Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Ning Yang,Fu Kang,Zhenyu Liu,Xinzhe Ge,Yunlong Zhou
Abstract The purpose of this work is to highlight the interest of CO2 conversion into MeOH through a complete assessment of the entire CO2-to-MeOH chain. A CO2 capture unit using MEA solvent is considered to treat the CO2 from a 600-MW power plant, and the captured CO2 is then sent to the CO2 conversion unit. As a result, the combination of the two units leads to the integrated CO2 capture and utilization
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Renewable energy configuration scheme of data center in cold area. A case study Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Jiawen Yu,Yanqiu Yan,Yiqiang Jiang,Jie Ge
ABSTRACT The core of building energy allocation is to reduce the power load and power consumption through the reasonable allocation of energy equipment, so as to reduce the capacity of the supply side and save investment. In this way, the configuration of energy schemes in data center is conducted in this paper. According to the results of load forecasting, the energy supply scheme of each building
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Numerical modeling of a novel two-stage linear refrigeration compressor Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Hao Shen,Zhaohua Li,Kun Liang,Xinwen Chen
Abstract Linear compressors have started to apply in refrigeration owing to their oil-free operation, capacity modulation by variable stroke and higher seasonal efficiency. Nevertheless, linear compressors are subject to a high seal leakage loss and piston offset (drift), particularly at high pressure ratios. Meanwhile, there is a reduction in the accuracy of resonant frequency prediction due to very
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Environment pollutants removal with non-thermal plasma technology Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Buyong Chen,Yuanhao Wang,Sen Li,Naijiao Xu,Yuhong Fu
Abstract In recent years, non-thermal plasma technology has gained considerable attention. It can produce highly reactive hydroxyl radicals and other strong oxidants, which is promising in environment pollutants removal. This article mainly reviews the recent advances in environment contaminants removal with several well-known non-thermal plasma technologies. We first introduce non-thermal plasma technology
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Parametric optimization procedure for efficient window design of educational buildings in the Pearl River Delta of China Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Yang Zhao,Yuping Li,Xingjiang Chen,Dawei Xia,Yu Huang,Siwei Lou
Abstract Windows are responsible for the largest amount of energy loss related to building envelope. Past studies on the energy consumption of windows have mainly focused on residential and commercial buildings, while few studies have explored the energy consumption of windows in educational buildings. The sizes and locations of classroom windows affect not only the building energy consumption but
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Cascade relationship between flow field characteristics and smoke emissions in the industrial reheating furnace Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Yang Lipo,Liu Yunpeng,Hou Yingwu,Zhang Yongshun
Abstract The temperature control process of reheating furnace is time delay and highly nonlinear to result in large temperature difference fluctuation and low temperature accuracy, because the complex flow field characteristics obviously affect the on-line temperature distribution of furnace and slab. Up to date, it is urgent to find out the heat balance cascade law between the key factors. Therefore
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The fabrication and testing of a self-sensing MWCNT nanocomposite sensor for oil leak detection Int. J. Low Carbon Technol. (IF 2.3) Pub Date : 2022-01-01 Mohammed Al-Bahrani,Aissa Bouaissi,Alistair Cree
Abstract Oil spillage, due to either direct or indirect accidents, can cause major environmental and economic issues if not detected and remedied immediately. In this study, the unique properties of carbon nanotubes have shown a substantial sensing capability for such a purpose when incorporated into a nanostructured composite material. A high-efficiency self-sensing nanocomposite sensor was fabricated