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Optimization of the flow resistance characteristics of the direct return flat plate solar collector field Sol. Energy (IF 4.608) Pub Date : 2021-01-20 Dengjia Wang; Ruichao Zhang; Yanfeng Liu; Xinyu Zhang; Jianhua Fan
The uneven (flow) resistance of branched pipes commonly causes local overheating and freezing in solar collector fields. In this paper, the resistance characteristics of the direct return flat plate solar collector field are studied using a numerical model. The accuracy of the model is verified with experimental data, and the maximum relative error is below 10%. A new evaluation index, the ratio of
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Mass flow rate prediction of direct-expansion solar-assisted heat pump using R290 based on ANN model Sol. Energy (IF 4.608) Pub Date : 2021-01-19 Xiangqiang Kong; Shanle Ma; Tingdong Ma; Ying Li; Xiaochun Cong
A direct-expansion solar-assisted heat pump (DX-SAHP) system using R290 (propane) is studied experimentally. A Coriolis mass flow meter is employed to measure the R290 mass flow rate, and the artificial neural network (ANN) model is used to predict it. Based on numerous experiments, the 5 independent variables are chosen as the input parameters of the ANN model, including the ambient temperature, solar
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Efficiency enhancement of low-cost metal free dye sensitized solar cells via non-thermal atmospheric pressure plasma surface treatment Sol. Energy (IF 4.608) Pub Date : 2021-01-18 Janith Weerasinghe; Suvanker Sen; J.M.K.W. Kumari; M.A.K.L. Dissanayake; G.K.R. Senadeera; C.A. Thotawatthage; Mihiri Ekanayake; Renwu Zhou; Patrick J. Cullen; Prashant Sonar; Krasimir Vasilev; Kostya (Ken) Ostrikov
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Electrical and optical characterization of sprayed In2S3 thin films as an electron transporting layer in high efficient perovskite solar cells Sol. Energy (IF 4.608) Pub Date : 2021-01-18 Maryam Hashemi; Mehran Minbashi; Seyed Mohammad Bagher Ghorashi; Arash Ghobadi; Mohammad Hossein Ehsani; Maryam Heidariramsheh; Ali Hajjiah
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Experimental investigation of a CPVT collector coupled with a wedge PVT receiver Sol. Energy (IF 4.608) Pub Date : 2021-01-18 Diogo Cabral; João Gomes; Abolfazl Hayati; Björn Karlsson
This paper presents an experimental investigation of a photovoltaic-thermal solar collector (commonly known as PVT) that generates both electricity and heat from the same gross area. PVT solar collectors, in theory, achieve higher combined electrical and heat yields. Additionally, PVT enables a thermal coupling between PV cells and a heat transfer cooling medium. Electrical and thermal outdoor testing
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Environmental performance of dye-sensitized solar cells based on natural dyes Sol. Energy (IF 4.608) Pub Date : 2021-01-18 Alfred Błaszczyk; Katarzyna Joachimiak-Lechman; Sylwia Sady; Tomasz Tański; Marek Szindler; Aleksandra Drygała
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A comparison and evaluation of innovative parabolic trough collector concepts for large-scale application Sol. Energy (IF 4.608) Pub Date : 2021-01-16 José Fredriksson; Martin Eickhoff; Lutz Giese; Michael Herzog
The present review defines the state of the art of parabolic trough collectors and identifies the concepts in the framework of innovation’s requirements. These are the increase of operating temperatures and of the power plant’s overall efficiency, as well as the cost reductions of the solar field by eliminating components and the reduction of parasitic power consumption (Pitz-Paal et al., 2007). The
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Measured and satellite-derived albedo data for estimating bifacial photovoltaic system performance Sol. Energy (IF 4.608) Pub Date : 2021-01-17 Bill Marion
The albedo of the ground surface is an important factor in the cost-effectiveness of a bifacial photovoltaic (PV) system. To improve the availability of reliable albedo data, datasets of ground albedo and associated meteorological data were developed by using existing measurement network data and data measured by the PV industry. The measured datasets include time-series data as well as summary information
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Boosting efficiency up to 25% for HTL-free carbon-based perovskite solar cells by gradient doping using SCAPS simulation Sol. Energy (IF 4.608) Pub Date : 2021-01-17 Lingyan Lin; Ping Li; Linqin Jiang; Zhenjing Kang; Qiong Yan; Hao Xiong; Shuiyang Lien; Peng Zhang; Yu Qiu
The carbon-based perovskite solar cells (C-PSCs) have attracted tremendous attentions due to the low fabrication cost and simple structure by omitting the hole transporting layer (HTL). However, the performance of C-PCSs is still lag behind those of conventional PSCs with HTL. In this work, an innovative C-PSC with a gradient doping absorber is proposed and explored by SCAPS simulation. The effect
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TiO2 nanorods integrated with titania nanoparticles: Large specific surface area 1D nanostructures for improved efficiency of dye-sensitized solar cells (DSSCs) Sol. Energy (IF 4.608) Pub Date : 2021-01-16 Hani Sayahi; Kioumars Aghapoor; Farshid Mohsenzadeh; Mina Mohebi Morad; Hossein Reza Darabi
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Use of physics to improve solar forecast: Physics-informed persistence models for simultaneously forecasting GHI, DNI, and DHI Sol. Energy (IF 4.608) Pub Date : 2021-01-16 Weijia Liu; Yangang Liu; Xin Zhou; Yu Xie; Yongxiang Han; Shinjae Yoo; Manajit Sengupta
Observation-based statistical models have been widely used in forecasting solar energy; however, existing models often lack a clear relation to physics and are limited largely to global horizontal irradiance (GHI) forecasts over relatively short time horizons (<1 h). Incorporating physics into observation-based models, increasing forecast time horizons and developing a model system for forecasting
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Thermal analysis of a hybrid high concentrator photovoltaic/membrane distillation system for isolated coastal regions Sol. Energy (IF 4.608) Pub Date : 2021-01-13 Mohammed Rabie; Abdallah Y.M. Ali; Essam M. Abo-Zahhad; Hesham I. Elqady; M.F. Elkady; Shinichi Ookawara; A.H. El-Shazly; Mohamed S. Salem; Ali Radwan
The present study introduces an innovative method for fresh water and electricity generation in the isolated regions. This proposed system couples a concentrated photovoltaic (CPV) unit with a membrane distillation (MD) unit. The CPV unit converts solar energy into electrical energy with conversion efficiency of about 40%. The rest is converted to thermal energy, which may cause cells degradation if
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Performance evaluation of hybrid photovoltaic thermal (PVT) solar dryer for drying of cassava Sol. Energy (IF 4.608) Pub Date : 2021-01-13 E. Veeramanipriya; AR. Umayal Sundari
A prototype hybrid Photovoltaic Thermal (PV – T) solar dryer aided with Evacuated Tube Collector (ETC) is presented for drying of cassava slices under the meteorological conditions of Thanjavur, Tamilnadu, India. Further the morphological, structural and physical properties of thin layer drying kinetics are studied and compared with natural sun drying. The designed dryer reduces the moisture content
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Determination of optimum tilt and azimuth angle of BiSPVT system along with its performance due to shadow of adjacent buildings Sol. Energy (IF 4.608) Pub Date : 2021-01-12 Somil Yadav; Caroline Hachem-Vermette; Sarat Kumar Panda; G.N. Tiwari; Smruti Saurava Mohapatra
Development of a BIPV system with appropriate azimuth and tilt angle on top of a suitable existing or new building in urban areas is a possible option to generate both electrical and thermal energies and also to create an additional living space. These azimuth and tilt angles are significantly influenced by the shadow of the neighborhood’s buildings. The relative height, plan orientation, plan area
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Synergistic combination of TiO2-sol interconnecting-modified photoanode with alginate hydrogel-assisted electrolyte for quantum dots sensitized solar cells Sol. Energy (IF 4.608) Pub Date : 2021-01-12 Zhonglin Du; Ming Chen; Feifei Yin; Haoyang Jiang; Jiuxing Wang; Jianguo Tang
Constructing the highly efficient and stable quasi-solid-state even solid-state devices is one of the most significant tendency in the field of quantum dots sensitized solar cells (QDSCs). Herein, highly efficient and stable quasi-solid-state (QS)-QDSCs devices were fabricated via synergistically combining the TiO2-sol interconnecting-modified photoanodes with alginate hydrogel (AH)-assisted electrolyte
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Application of a fixed-receiver Linear Fresnel Reflector in concentrating photovoltaics Sol. Energy (IF 4.608) Pub Date : 2021-01-12 Paola Boito; Roberto Grena
Among the numerous proposals for concentrator design in concentrating photovoltaics, fixed-receiver linear Fresnel reflectors (with a fixed receiver and multiple mirror strips at ground level, rotating on multiple parallel axes) seem to have been quite neglected so far in the literature. In this work we present and discuss properties and possibilities of a fixed-receiver LFR for concentrating photovoltaics
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Mixed-halide perovskites solar cells through PbICl and PbCl2 precursor films by sequential chemical vapor deposition Sol. Energy (IF 4.608) Pub Date : 2021-01-12 Siphelo Ngqoloda; Christopher J. Arendse; Suchismita Guha; Theophillus F. Muller; Stephen C. Klue; Siphesihle S. Magubane; Clive J. Oliphant
Mixed halide perovskites with chlorine (Cl) content have received significant interest due to better charge transport properties and longer diffusion length compared to pure iodine-based perovskites. The superior properties of Cl-doped perovskites improve solar cell device performance, although the quantification of Cl composition in the perovskite films remain difficult to achieve. Hence, it is difficult
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Thermodynamic comparison of solar methane reforming via catalytic and redox cycle routes Sol. Energy (IF 4.608) Pub Date : 2021-01-11 B. Bulfin; S. Ackermann; P. Furler; A. Steinfeld
Thermochemical methane reforming to syngas is performed on a massive scale in the chemical industry, providing feedstock for many chemical processes such as hydrogen, ammonia and methanol production. The high temperature process heat required for the endothermic reforming reaction could be supplied by conentrated solar energy, in a hybrid solar-fossil process. This can be achieved by re-designing conventional
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Enhanced photodegradation of paracetamol from water by cobalt doped graphitic carbon nitride Sol. Energy (IF 4.608) Pub Date : 2021-01-10 Thi Huong Pham; Jun-Woo Park; TaeYoung Kim
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Polyacrylonitrile/polyindole and poly(glycidyl methacrylate)/polyindole composites based quasi solid electrolyte materials for dye sensitized solar cells Sol. Energy (IF 4.608) Pub Date : 2021-01-11 Soner Çakar; Cengiz Soykan; Mahmut Özacar
In this study, polyacrylonitrile/polyindole and poly(glycidyl methacrylate)/polyindole composites are prepared by chemical polymerization by FeCl3 as an oxidant agent. Spectroscopic characterization of the polymers, and composites are investigated by Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy techniques. The thermal properties of the prepared conductive polymer
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Thermal performance of an evacuated tube solar collector with inserted baffles for air heating applications Sol. Energy (IF 4.608) Pub Date : 2021-01-10 A. Veera Kumar; T.V. Arjunan; D. Seenivasan; R. Venkatramanan; S. Vijayan
The thermal performance of an evacuated tube solar air collector with inserted baffles (ETSACIB) was investigated experimentally and analytically investigated under the indoor solar thermal simulator. The effects of the operating parameters such as flow rate, inlet air temperature, baffle length and solar insolation on the thermal behaviour of ETSACIB system were analyzed. Experiments were performed
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Numerical and experimental investigation on the performance of hybrid PV/thermal systems in the north of Iran Sol. Energy (IF 4.608) Pub Date : 2021-01-09 Amirhossein Zabihi Sheshpoli; Omid Jahanian; Kamyar Nikzadfar; Mojtaba Aghajani Delavar
Solar energy is greatly recommended as a source of renewable energy in wide range of in-house applications to large power plants. Photovoltaic (PV) panels utilized for absorbing solar energy have some limitations: low efficiency, large occupied space and high dependency on environmental conditions. Panel surface temperature is one of the main conditions affecting PV panels. High temperatures would
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Enhanced photocatalytic performance of novel MIL53Sr metal-organic framework (MOF) for RhB dye degradation and H2 evolution by coupling MIL53Fe Sol. Energy (IF 4.608) Pub Date : 2021-01-09 Muhammad Humayun; Minming He; Wenbai Feng; Chengyao Jin; Zichen Yao; Yongcheng Wang; Wenbo Pi; Sher Ali; Abbas Khan; Mei Wang; Zhiping Zheng; Qiuyun Fu; Hui Xia; Wei Luo
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Role of intermediate band and carrier mobility in Sn/Fe doped CuAlS2 thin film for solar cell: An ab-initio study Sol. Energy (IF 4.608) Pub Date : 2021-01-10 Aditi Gaur; Karina Khan; B.R. Bhagat; J. Sahariya; A. Soni; Alpa Dashora
Formation of intermediate band in environmentally stable and wide band gap semiconductor, CuAlS2, have been studied towards potential, low cost and efficient thin film solar cell material. We investigate the effect of sustainable low-cost dopant (Sn and Fe) in CuAlS2 film by means of density functional theory within the modified Becke-Johnson approximation for the calculation of electronic and optical
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Design and thermoeconomic analysis of a solar parabolic trough – ORC – Biomass cooling plant for a commercial center Sol. Energy (IF 4.608) Pub Date : 2021-01-09 Eduardo A. Pina; Miguel A. Lozano; Luis M. Serra; Adrian Hernández; Ana Lázaro
Hybrid renewable polygeneration systems are regarded as key solutions for the sustainable energy supply of buildings. While solar heating and cooling comprises a wide range of technologies, there has been limited research on the combined production of power and cooling only, with little or no heat demand. This study designs and analyzes a hybrid solar–biomass ORC-based polygeneration system from energy
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Carbon/graphene quantum dot and conjugated polymer nanostructures impart unprecedented high efficiencies in routine P3HT:PCBM photovoltaics Sol. Energy (IF 4.608) Pub Date : 2021-01-08 Bing Mei; Yahong Qin; Samira Agbolaghi
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Performance of a hybrid compound parabolic concentrator solar dryer for tomato slices drying Sol. Energy (IF 4.608) Pub Date : 2021-01-06 Hossein Ebadi; Dariush Zare; Masoud Ahmadi; Guangnan Chen
In this study, a hybrid drying system incorporating a compound parabolic concentrator (CPC) solar collector and an electric auxiliary heater was developed to make advances in sustainable tomato drying. The proposed dryer was designed to operate in a combined mode with solar energy as the prime source of energy, and the auxiliary unit was only used in the cases with the absence of solar radiation or
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Review on the effect of compact layers and light scattering layers on the enhancement of dye-sensitized solar cells Sol. Energy (IF 4.608) Pub Date : 2021-01-06 Muhammad Norhaffis Mustafa; Yusran Sulaiman
Dye-sensitized solar cells (DSSCs) have attracted significant interest in the scientific community in recent years due to their advantages such as low fabrication cost, facile fabrication and capability to increase the DSSC performance. Up to date, there are a lot of efforts that have been performed to enhance the DSSC performance by introducing compact layers (CLs) and light scattering layer (LSLs)
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Enhancing the photovoltaic performance of Cd-free Cu2ZnSnS4 heterojunction solar cells using SnS HTL and TiO2 ETL Sol. Energy (IF 4.608) Pub Date : 2021-01-06 M. Atowar Rahman
Cu2ZnSnS4 chalcogenide semiconductor is a very promising absorber material for solar cells and no longer fulfilled its realistic goals due to the possible challenge of defect-free fabrication, non-optimized buffer layer alignment and device configuration. In this article, we proposed a new planner structure defined as (SnS/CZTS/TiO2/ITO) using Ni and Al as a back and front contact materials, respectively
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Performance loss rates of floating photovoltaic installations in the tropics Sol. Energy (IF 4.608) Pub Date : 2021-01-06 Wei Luo; Sravani Naga Isukapalli; Lokesh Vinayagam; Shi An Ting; Mauro Pravettoni; Thomas Reindl; Abhishek Kumar
Floating photovoltaics (FPV) is a relatively new concept for the PV community. The operating environment of FPV systems is different from that of conventional PV systems and offers the potential advantage of higher energy yield. Consequently, there is a rapid increase recently in both the installed and planned capacity of FPV systems worldwide. However, there exists a lack of knowledge and data about
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Flux-feedback as a fast alternative to control groups of aiming points in molten salt power towers Sol. Energy (IF 4.608) Pub Date : 2021-01-05 David Acosta; Jesus Garcia; Marco Sanjuan; Laurin Oberkirsch; Peter Schwarzbözl
The receiver is one of the critical elements in central tower concentrating solar power plants, which use molten salt as heat transfer fluid. Gradients in the incident flux, a consequence of the natural variability of the solar resource on the earth’s surface, and temperature limits must be considered in the operation of the system, due to corrosive phenomena caused by the interaction between the metal
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Improved photovoltaic performance of CdTe-based solar cells: Roles of using a hole-blocking layer and nanoscale imaging of barrier height at interfaces Sol. Energy (IF 4.608) Pub Date : 2021-01-02 Ranveer Singh; Alapan Dutta; Nilanjan Basu; Jayeeta Lahiri; Tapobrata Som
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Analytical method for loads determination on floating solar farms in three typical environments Sol. Energy (IF 4.608) Pub Date : 2021-01-02 Maria Ikhennicheu; Benoat Danglade; Rémy Pascal; Valentin Arramounet; Quentin Trébaol; Félix Gorintin
Floating solar energy is an industry with great potential. Farms can be installed on lakes, reservoirs or offshore. Numerous projects are under study or have been realised. This study presents three reference cases for floating solar farms, with adapted environmental data: a small lake (2.5 MWp – Mega Watt Peak - island), a large lake (7.5 MWp island) and offshore (2.5 MWp island). Mooring is one of
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Tunnel junction limited performance of InGaAsN/GaAs tandem solar cell Sol. Energy (IF 4.608) Pub Date : 2020-12-31 Wojciech Dawidowski; Beata Ściana; Iwona Zborowska-Lindert; Miroslav Mikolášek; Jaroslav Kováč; Marek Tłaczała
From tandem solar cell we expect a wide absorption range due to different bandgaps of the subcells, higher open circuit voltage Voc and finally better photo conversion efficiency η than single junction solar cell. The main drawback of it is a current limitation i.e. the short circuit current Jsc of whole structure is equal to smaller Jsc of both subcells. However, even two subcells with very good photovoltaic
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A review on windows incorporating water-based liquids Sol. Energy (IF 4.608) Pub Date : 2020-12-31 Yuri Piffer; Roberto Lamberts; Martin Ordenes Mizgier; Saulo Güths
This paper presents a review of windows filled of water-based liquids which absorbs solar radiation and will be referred to herein as water-based windows (WBWs). These liquids have spectrally-selective and high thermal capacity properties for optical and thermal performance improvement. A WBW relates to windows that features transparent, semi-transparent, colorless or colored visual performance. Its
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Facile sputtering enables double-layered ZnO electron transport layer for PbS quantum dot solar cells Sol. Energy (IF 4.608) Pub Date : 2020-12-31 Meiying Li; Shuaipu Zang; Yinglin Wang; Jinhuan Li; Jiangang Ma; Xintong Zhang; Yichun Liu
PbS colloidal quantum dot solar cells (CQDSCs) employ ZnO electron transport layer have achieved high efficiency. However, there is nearly no efficient and batch production method to balance the charge separation and recombination within the device, which is one of the most obviously barrier to a satisfactory conversion efficiency. Here, a n+-n double-layered ZnO electron transport layer (DETL) is
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Drying kinetics of cabya (Piper retrofractum Vahl) fruit as affected by hot water blanching under indirect forced convection solar dryer Sol. Energy (IF 4.608) Pub Date : 2020-12-30 La Choviya Hawa; Ubaidillah Ubaidillah; Siti Asmaniyah Mardiyani; Amirada Nur Laily; Nur Ida Winni Yosika; Firdiani Nur Afifah
East Java Province is one of main producers of cabya (Piper retrofractum Vahl) fruit in Indonesia. The fruit has huge utilizations and economic potential, but lack in postharvest process investigation. Traditional open sun drying by farmers has deficiency, e.g. unpredictable weather and longer process. In the present study, the indirect forced convection solar dryer was used to dehydrate the cabya
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Optimization of parabolic trough solar power plant operations with nonuniform and degraded collectors Sol. Energy (IF 4.608) Pub Date : 2020-12-29 Linrui Ma; Tong Zhang; Xuelin Zhang; Bin Wang; Shengwei Mei; Zhifeng Wang; Xiaodai Xue
In a commercial parabolic trough solar power plant (PTSPP), the solar field (SF) is large-scaled and consists of hundreds of parabolic trough collector (PTC) loops. The PTSPP performance is determined by an appropriate operation strategy of the SF, which is implemented by adjusting the outlet temperature, the flowrate, and the flow distribution through the valves and pump to make the PTSPP output cost-effective
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Experimental and numerical optimal design of a household solar fruit and vegetable dryer Sol. Energy (IF 4.608) Pub Date : 2020-12-29 P. Moghimi; H. Rahimzadeh; A. Ahmadpour
In the present study, a low-cost solar fruit and vegetable dryer was designed, constructed, and tested for small-scale production, especially in households. An optimizing procedure was performed to convert a typical widely-used direct cabinet dryer into a new indirect dryer using experimental data and numerical simulations. Several well-designed experiments accompanied by CFD simulations using finite
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Mechanical reliability of flexible encapsulation of III-V compound thin film solar cells Sol. Energy (IF 4.608) Pub Date : 2020-12-29 Chen Yang; JingRui Qu; ZhenYu Wu
Flexible III-V compound thin film solar cells are promising candidates in the applications of Internet of Thing, electronics, civil, automotive and aerospace. In this study, theoretical, numerical and experimental methods are employed to investigate the mechanical reliability of the GaAs thin film solar cells with polymer film encapsulation. Experimental investigation by uniaxial tensile testing has
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Enhancing the efficiency of polymer solar cells by embedding Au@Ag NPs Durian shape in buffer layer Sol. Energy (IF 4.608) Pub Date : 2020-12-29 Muheeb Ahmad Alkhalayfeh; Azlan Abdul Aziz; Mohd Zamir Pakhuruddin
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A light clustering model predictive control approach to maximize thermal power in solar parabolic-trough plants Sol. Energy (IF 4.608) Pub Date : 2020-12-28 Eva Masero; José Ramón D. Frejo; José M. Maestre; Eduardo F. Camacho
This article shows how coalitional model predictive control (MPC) can be used to maximize thermal power of large-scale solar parabolic-trough plants. This strategy dynamically generates clusters of loops of collectors according to a given criterion, thus dividing the plant into loosely coupled subsystems that are locally controlled by their corresponding loop valves to gain performance and speed up
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Compact TiO2 blocking-layer prepared by LbL for perovskite solar cells Sol. Energy (IF 4.608) Pub Date : 2020-12-28 Elaine Teixeira Veiga; Silvia Letícia Fernandes; Carlos Frederico de Oliveira Graeff; André Sarto Polo
Blocking-layer are very important for the overall efficiency improvement in perovskite solar cells, PSCs. This layer must be thin enough to allow the light to reach the perovskite layer and have low electrical resistance for electron flow to the external circuit and, at the same time, inhibit recombination processes on the FTO surface. In this work, the preparation of the TiO2 compact layer by the
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Hybrid photoanode of TiO2-ZnO synthesized by co-precipitation route for dye-sensitized solar cell using phyllanthus reticulatas pigment sensitizer Sol. Energy (IF 4.608) Pub Date : 2020-12-28 Mehul Bhogaita; D. Devaprakasam
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Preparation of carbon nanofibers supported Bi2MoO6 nanosheets as counter electrode materials on Titanium mesh substrate for dye-sensitized solar cells Sol. Energy (IF 4.608) Pub Date : 2020-12-27 Zixiang Li; Wankun Qi; Lidong Li; Zeyuan Ma; Weidong Lai; Ling Li; Xiaoshi Jin; Yucang Zhang; Wenming Zhang
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Fuel choice and tradition: Why fuel stacking and the energy ladder are out of step? Sol. Energy (IF 4.608) Pub Date : 2020-12-26 Prabhakar Yadav; Peter J. Davies; Samuel Asumadu-Sarkodie
Multiple fuel use, incorporated within the concept of fuel stacking is prevalent in households at the beginning and mid-way in their ascension up the energy ladder. However, households cannot fully let go of their traditional energy sources presenting inherent policy complexities and contradictions within energy transition theories. Empirical insights into the determinants of clean energy transitions
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Thermal conductivity of concrete at high temperatures for thermal energy storage applications: Experimental analysis Sol. Energy (IF 4.608) Pub Date : 2020-12-25 T. Lucio-Martin; M. Roig-Flores; M. Izquierdo; M.C. Alonso
Thermal conductivity plays an important role in energy storage when the materials are charging and discharging. This paper presents an experimental investigation of the evolution of thermal conductivity up to 600 °C in different concretes. Moreover, the thermal conductivity was measured during thermal fatigue cycles when temperature ranged between 300 and 600 °C, simulating the operation conditions
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Experimental study on pigmented coatings using two particle types with complementary optical features Sol. Energy (IF 4.608) Pub Date : 2020-12-25 Jiale Chai
One effective measure for building energy reduction is to pigment coatings on building exteriors. Conventionally, most coatings are designed using single particle types. Due to the limited particle optical features, these coatings usually perform well in one performance (e.g., thermal aspect) but poorly in another (e.g., aesthetic aspect). Thus, in practice they may not be able to meet the user-required
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Comparative study on the overall energy performance between photovoltaic and Low-E insulated glass units Sol. Energy (IF 4.608) Pub Date : 2020-12-25 Jinqing Peng; Dragan C. Curcija; Anothai Thanachareonkit; Eleanor S. Lee; Howdy Goudey; Jacob Jonsson; Stephen E. Selkowitz
A novel semi-transparent building integrated photovoltaic (BIPV) laminate was developed and introduced in this paper. It was produced by cutting standard mono-crystalline silicon solar cells into small strips and then making electrical connections between each strip before laminating the cells between two layers of glass. The overall energy performance and energy saving potential of the BIPV insulated
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Characterization of shortwave and longwave properties of several plastic film mulches and their impact on the surface energy balance and soil temperature Sol. Energy (IF 4.608) Pub Date : 2020-12-25 Hughie Jones; Thomas Andrew Black; Rachhpal Singh Jassal; Zoran Nesic; Mark Stephen Johnson; Sean Smukler
We used, and present, robust methodologies to measure the shortwave (S) and longwave (L) spectral radiative properties (reflectivity (ρ), transmissivity (τ) and absorptivity (α)) of nine plastic films and quantified their effect, when used as mulches, on soil heat flux density (G), net radiation (Rn, above the films) and soil temperature (Ts2cm, 2-cm depth; Ts10cm, 10-cm depth) in comparison to a control
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Experimental investigation of transpired solar collectors with/without phase change materials Sol. Energy (IF 4.608) Pub Date : 2020-12-25 A.S. Bejan; C. Teodosiu; C.V. Croitoru; T. Catalina; I. Nastase
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A non-vacuum dip coated SiO2 interface layer for fabricating CIGS solar cells on stainless steel foil substrates Sol. Energy (IF 4.608) Pub Date : 2020-12-25 Prashant Misra; S.R. Atchuta; Sreekanth Mandati; B.V. Sarada; T.N. Rao; S. Sakthivel
A novel solution processed SiO2 coating is investigated for use as an interface layer between the substrate and Mo back contact for making CIGS solar cells on flexible SS foils. Prior to deposition of Mo, a ~ 1 μm thick SiO2 layer is applied on commercially available SS foils using an economical non-vacuum dip coating method. CIGS absorbers as well as complete CIGS solar cells having the structure
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Secondary concentrator design of an updated space solar power satellite with a spherical concentrator Sol. Energy (IF 4.608) Pub Date : 2020-12-24 Guanheng Fan; Baoyan Duan; Yiqun Zhang; Yang Yang; Xiangfei Ji; Xianli Li
The Space Solar Power Satellite (SSPS) is a promising project to solve the energy crisis on earth. In this paper, a secondary concentrator design of an updated SSPS-OMEGA concept is proposed aiming at the problems existing in original SSPS-OMEGA concept, such as high power transmission through power brush, thermal management of the photovoltaic (PV) cell arrays and special requirements for the concentrator
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Fast computation of yearly averages of useful quantities for solar engineering Sol. Energy (IF 4.608) Pub Date : 2020-12-24 Paola Boito; Roberto Grena
In solar engineering, many simulations require the computation of averages over a year of quantities such as the efficiency of solar plants. In the case of stationary quantities, i.e., that do not depend on the past history but only on the present conditions, time averages can be replaced by averages over the solar position, which are much faster to compute. Through a suitable choice of coordinates
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Thermal performance of jet-impingement solar air heater with transverse ribs absorber plate Sol. Energy (IF 4.608) Pub Date : 2020-12-23 Refat Moshery; Tan Yong Chai; Kamaruzzaman Sopian; Ahmad Fudholi; Ali H.A. Al-Waeli
The present paper examines the hypothetical and empirical effects of geometrical parameters via transverse ribs on the back of a jet-impingement solar air heater absorber plate. MATLAB software environment was utilised to develop and solve equations on the steady-state energy balance. Moreover, verification of the performance was done through indoor experiments by employing a solar simulator. The range
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Performance evaluation of novel tapered shell and tube cascaded latent heat thermal energy storage Sol. Energy (IF 4.608) Pub Date : 2020-12-23 B.V. Rudra Murthy; Kottayat Nidhul; Veershetty Gumtapure
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Morphology control of SnO2 layer by solvent engineering for efficient perovskite solar cells Sol. Energy (IF 4.608) Pub Date : 2020-12-22 Chongyang Xu; Zhihai Liu; Qijun Sun; Eun-Cheol Lee
Perovskite solar cells (PSCs) are considered among the most promising alternatives to Si-based solar cells, owing to the ongoing rise in their power conversion efficiencies (PCEs). While TiO2 has been widely used as an electron transport layer (ETL) in the n-i-p (regular) type PSCs, series of its disadvantages, including limited bulk electron mobility and photocatalytic character, restrict further
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Synthesizing S-doped graphitic carbon nitride for improvement photodegradation of tetracycline under solar light Sol. Energy (IF 4.608) Pub Date : 2020-12-22 Vu Thi Quyen; Hoon Jae Kim; JiTae Kim; Le Thi Thu Ha; Pham Thi Huong; Dang My Thanh; Nguyen Minh Viet; Phan Quang Thang
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Simulation and investigation of perovskite/nano-pyramidal GeSe solar cell: Realizing high efficiency by controllable light trapping Sol. Energy (IF 4.608) Pub Date : 2020-12-22 Masoud Aliyariyan; Davood Fathi; Mehdi Eskandari; Mohammad Hosein Mohammadi
Perovskite Solar Cells (PSC) have been elicited much interest within the photovoltaic industry due to their many performance advantages. One of the effective ways to enhance the Power Conversion Efficiency (PCE) of PSCs is to minimize light and electrical losses. To this end, we have focused on the use of nanostructured light absorbers in PSCs and have simulated these structures to understand their
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High-efficiency CdTe-based thin-film solar cells with unltrathin CdS:O window layer and processes with post annealing Sol. Energy (IF 4.608) Pub Date : 2020-12-22 Anhong Hu; Jie Zhou; Penggeng Zhong; Xinyuan Qin; Mengfei Zhang; Yuxia Jiang; Xuanzhi Wu; Deren Yang
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