Applied Solar Energy最新文献_第2页

Performance Assessment and Optimization of a Concentrated Triple-Junction Solar Cell Coupled with a Thermoelectric Generator and a New Trimmed Fins Heat Sink 热电发电机与新型散热片耦合的聚光三结太阳能电池性能评估与优化

IF 1.204

Applied Solar Energy Pub Date : 2025-06-10 DOI: 10.3103/S0003701X24602783

Omar Emad Ahmed, Mohamed Emam, Ahmed A. A. Attia, M. A. Abdelrahman

{"title":"Performance Assessment and Optimization of a Concentrated Triple-Junction Solar Cell Coupled with a Thermoelectric Generator and a New Trimmed Fins Heat Sink","authors":"Omar Emad Ahmed, Mohamed Emam, Ahmed A. A. Attia, M. A. Abdelrahman","doi":"10.3103/S0003701X24602783","DOIUrl":"10.3103/S0003701X24602783","url":null,"abstract":"The current numerical analysis presents a novel approach for passive cooling of triple-junction (TJ) solar cells integrated with thermoelectric generator (TEG) by an innovative trimmed fins heat sink. The fins design, length and cutting angle are tailored based on the thermal distribution of the hybrid system. The envisaged configuration enables the extraction of excess heat from the cell and its conversion into secondary power via thermoelectric generator. This enhances the system’s cooling efficiency and power generation while minimizing material usage. Three-dimensional thermo-electric model was developed and simulated at various dimensions and cutting angles of the finned heat sink. Results showed that the new trimmed fins heat sink with a flat base area of 2500 mm2 and fins cutting angle of 44° is ideally compatible for operating the HCPV TJ cell at the highest possible performance while avoiding significantly increasing the system’s weight. This design improves the TJ cell performance, allowing for maximum allowable solar concentration of 205 and 157 suns at 1 m/s compared to 43.5 and 33 suns for the uncooled reference cell at ambient temperatures of 25 and 45°C, respectively. Accordingly, the system was enabled to generate a higher power of 7.89 and 6.03 W/cm2 (based on cell active area), while the uncooled cell is limited to 1.65 and 1.3 W/cm2. The remarkable increase in system efficiency caused by the hybrid cooling system achieved environmental benefits by reducing CO2 emissions by 189.4-ton Co2/yr⋅m2. Finally, Taguchi analysis revealed that the solar incident irradiance concentration ratio has greatest effect on system performance when compared to the other operational variables.","PeriodicalId":475,"journal":{"name":"Applied Solar Energy","volume":"60 5","pages":"649 - 671"},"PeriodicalIF":1.204,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Study the Radiation Effect on the Photovoltaic Properties of Silicon Heterojunction Solar Cells 辐射对硅异质结太阳能电池光电性能的影响研究

IF 1.204

Applied Solar Energy Pub Date : 2025-06-10 DOI: 10.3103/S0003701X24602692

Sh. B. Utamuradova, E. I. Terukov, O. K. Ataboev, I. E. Panaiotti, A. S. Gudovskikh, A. I. Baranov, O. P. Mikhaylov, A. A. Bazeley, K. X. Iniyatova

{"title":"Study the Radiation Effect on the Photovoltaic Properties of Silicon Heterojunction Solar Cells","authors":"Sh. B. Utamuradova, E. I. Terukov, O. K. Ataboev, I. E. Panaiotti, A. S. Gudovskikh, A. I. Baranov, O. P. Mikhaylov, A. A. Bazeley, K. X. Iniyatova","doi":"10.3103/S0003701X24602692","DOIUrl":"10.3103/S0003701X24602692","url":null,"abstract":"In this work, influence of electron irradiation on the photovoltaic properties of n-type silicon heterojunction solar cells has been investigated. It has been shown that when irradiated with electrons with a fluence of 5 × 1014 cm–2, a significant decrease in the quantum efficiency occurs at wavelengths of more than 600 nm, leading to a decrease in the short-circuit current from 33.1 to 22 mA/cm2 and the open-circuit voltage from 0.68 to 0.53 V, and at a fluence of 1 × 1015 cm–2 up to 18.25 mA/cm2 and 0.51 V, respectively. Also, from the load current-voltage characteristics, the values of the surface recombination velocity are ~16 cm/s before irradiation, ~500 cm/s at 5 × 1014 cm–2 and 580 cm/s at 1 × 1015 cm–2 have been calculated. Using the admittance spectroscopy, a defect with an activation energy of 0.18 eV and capture cross section of σn = 5 × 10–15 cm2 was detected in irradiated structures, which may probably be responsible for this behavior of characteristics, its concentration increases with increasing fluence.","PeriodicalId":475,"journal":{"name":"Applied Solar Energy","volume":"60 5","pages":"672 - 680"},"PeriodicalIF":1.204,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical-Energy Characteristics and Heating Temperatures in Small Single-Mirror Solar Furnaces 小型单镜太阳能炉的光能特性和加热温度

IF 1.204

Applied Solar Energy Pub Date : 2025-06-10 DOI: 10.3103/S0003701X24602394

Sh. I. Klychev, S. A. Bakhramov, O. R. Parpiev, M. S. Paizullakhanov, L. S. Suvonova, D. E. Kadyrgulov, E. K. Matjanov, F. A. Giyasova

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On the Possibilities of Renewable Energy in Ensuring Energy Security of Uzbekistan. Part 1 论可再生能源在保障乌兹别克斯坦能源安全中的可能性。第1部分

IF 1.204

Applied Solar Energy Pub Date : 2025-06-10 DOI: 10.3103/S0003701X24603533

R. A. Zakhidov, U. A. Tadjiev, F. M. Makhammadiev, E. T. Yusupov

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Understanding the Influence of Electrolyte Optimization and Graphene Paper Cathodes on the Electrochemical Performance of Aluminum Dual-Ion Batteries 电解液优化及石墨烯纸阴极对铝双离子电池电化学性能的影响

IF 1.204

Applied Solar Energy Pub Date : 2025-06-10 DOI: 10.3103/S0003701X24603405

I. Kh. Ashurov, M. M. Adilov, Kh. B. Ashurov

{"title":"Understanding the Influence of Electrolyte Optimization and Graphene Paper Cathodes on the Electrochemical Performance of Aluminum Dual-Ion Batteries","authors":"I. Kh. Ashurov, M. M. Adilov, Kh. B. Ashurov","doi":"10.3103/S0003701X24603405","DOIUrl":"10.3103/S0003701X24603405","url":null,"abstract":"This study examines the electrochemical performance of aluminum dual-ion batteries (ADIBs) using binder-free graphene paper as the cathode and different molar ratios of AlCl3 to 1-ethyl-3-methylimidazolium chloride [EMIm]Cl as the electrolyte. The graphene paper, with a thickness of 35 µm, offers high electrical conductivity and mechanical strength, making it a strong candidate for scalable energy storage systems. Three electrolyte compositions with AlCl3 molar ratios of 1.3:1, 1.5:1, and 1.7:1 were tested to assess their effects on battery cell performance. Among these, the 1.7:1 composition exhibited the best electrochemical performance, with faster ion movement, lower charge transfer resistance, and more efficient aluminum-ion intercalation, leading to higher capacity retention. In contrast, the 1.3:1 ratio had limited ion mobility and increased internal resistance, while the 1.5:1 ratio offered a compromise between charge transfer efficiency and capacity retention. Electrochemical impedance spectroscopy, cyclic voltammetry, and galvanostatic cycling confirmed that the optimized 1.7:1 electrolyte composition, combined with graphene paper, significantly improved the battery’s rate capability and energy efficiency. These findings highlight the promise of binder-free graphene paper and optimized electrolyte compositions in advancing ADIB technology for high-performance and scalable energy storage applications.","PeriodicalId":475,"journal":{"name":"Applied Solar Energy","volume":"60 5","pages":"727 - 735"},"PeriodicalIF":1.204,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Investigation of Solar Air Heater for Space Heating Application 空间供热用太阳能空气加热器的数值研究

IF 1.204

Applied Solar Energy Pub Date : 2025-06-10 DOI: 10.3103/S0003701X24602151

S. Sutar, S. K. Rout, J. R. Senapati, K. K. Muduli

{"title":"Numerical Investigation of Solar Air Heater for Space Heating Application","authors":"S. Sutar, S. K. Rout, J. R. Senapati, K. K. Muduli","doi":"10.3103/S0003701X24602151","DOIUrl":"10.3103/S0003701X24602151","url":null,"abstract":"Solar power represents a clean and sustainable energy option that boasts widespread accessibility and the potential to drive the establishment of more sustainable systems in the times ahead. The use of solar energy for the use of draying of food, crops, space heating and air ventilation can be consented by a unique device is known as Solar Air Heater (SAH). The utilization of solar energy for activities such as food drying, crop cultivation, space heating, and air ventilation can be facilitated by a unique device known as a SAH. In the present investigation, a compressive investigation of a SAH with right triangular ribs attached to the absorber plate of various orientation with transverse pattern to the flow, investigated numerically. The orientations of the right triangle-shaped ribs are presented individually. Commercially available CFD simulation software, Ansys Fluent, is utilized to solve the equations governing mass, momentum, and energy. The absorber plate is upheld at a heat flux level of 1000 W/m2. The effects of various factors on the performance of SAH, such as the inlet velocity of airflow and rib parameters (pitch and height), are examined. The research investigation includes a diverse set of Reynolds numbers, ranging from 3400 to 19 000. Additionally, the rib pitch ratio varies within the range of 7.33 to 20.66. The discussion has covered the pressure drop attributed to the existence of ribs. To elucidate the fluid flow’s physics, temperature, pressure, and velocity contours are presented. Significant improvement is observed, with an optimized case featuring a rib roughness pitch of 7.33 found for the SAH with triangular ribs, resulting in a Thermal Enhancement Ratio (TER) of 1.89. Non-linear regression analysis has been employed to derive the connections between the Nu and friction factor, demonstrating an accuracy within a 6% error margin.","PeriodicalId":475,"journal":{"name":"Applied Solar Energy","volume":"60 5","pages":"708 - 726"},"PeriodicalIF":1.204,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Combined Effects of Using a Nanofluid and Adding Fins to the Absorber Tube of a Double-Reflection Parabolic Trough Collector 纳米流体与双反射抛物面槽集热器吸收管加翅片的联合效应

IF 1.204

Applied Solar Energy Pub Date : 2025-06-10 DOI: 10.3103/S0003701X24603016

Tameur Zaitri, Belkacem Bouali, Mostefa Telha, Nadhir Abdelaziz, Aissa Gounni, Maria Hanane Regue

{"title":"Combined Effects of Using a Nanofluid and Adding Fins to the Absorber Tube of a Double-Reflection Parabolic Trough Collector","authors":"Tameur Zaitri, Belkacem Bouali, Mostefa Telha, Nadhir Abdelaziz, Aissa Gounni, Maria Hanane Regue","doi":"10.3103/S0003701X24603016","DOIUrl":"10.3103/S0003701X24603016","url":null,"abstract":"This paper presents an analysis of the thermal performance of a parabolic trough collector (PTC) integrating a secondary reflector. The primary objective is to examine the impact of incorporating fins within the absorber tube, the introduction of nanoparticles to the base fluid, and the combination of fins and a nanofluid as a heat transfer fluid (HTF). The study is divided into two parts: The first part employs a ray-tracing method based on the Monte Carlo technique to determine the heat flux distribution on the lateral surface of the receiver tube. The second part involves simulating the conjugate heat transfer and fluid flow within the absorber tube. The heat transfer fluid used in this study is alumina (Al2O3) nanofluid, and the meteorological conditions are representative of Laghouat, a city in southern Algeria. The calculations revealed an average efficiency of approximately 47% for a secondary reflector. In addition, the results demonstrated that the optimal system configuration includes inserting three fins inside the tube, which leads to an efficiency improvement of 11% when using rectangular fins. Furthermore, the addition of 4% alumina nanoparticles (Al2O3) to the base fluid (water) increases the system’s efficiency by 12%. Finally, an optimal combination using a secondary reflector, the insertion of fins and the use of a nanofluid as a heat transfer fluid offer an efficiency gain of around 16%.","PeriodicalId":475,"journal":{"name":"Applied Solar Energy","volume":"60 5","pages":"690 - 702"},"PeriodicalIF":1.204,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Wind Power Secondary Calibration and Data Reliability of Wind Farm in Complex Terrain 复杂地形条件下风电场二次标定及数据可靠性研究

IF 1.204

Applied Solar Energy Pub Date : 2025-06-10 DOI: 10.3103/S0003701X2460005X

Xin Guan, Bo Liu, Ying Yuan, Longlong Zong, Dechen Kong

{"title":"Study on Wind Power Secondary Calibration and Data Reliability of Wind Farm in Complex Terrain","authors":"Xin Guan, Bo Liu, Ying Yuan, Longlong Zong, Dechen Kong","doi":"10.3103/S0003701X2460005X","DOIUrl":"10.3103/S0003701X2460005X","url":null,"abstract":"The measurement of wind resources is essential prior to the construction of wind farms; however, due to the influence of complex terrain and environmental factors, the actual power output of wind turbines often deviates from the predicted values obtained during early-stage measurements. In order to accurately and reliably calibrate wind power in complex terrains, this study employs an improved algorithm combined with large eddy simulation (LES) method to investigate the impact of environmental factors, wake characteristics, and calculation methods on wind power calibration. Within the discrete LES calculation method, the immersion boundary approach is utilized to simulate air flow effects caused by mountainous terrain and surface roughness. The results obtained from LES simulations exhibit excellent agreement with measurements taken from anemometer towers. Furthermore, when simulating wakes in complex terrains, it is observed that mountain wakes deflect downward along their central tracks beneath mountain peaks. For double mountains (complex terrains), variations in airflow acceleration occur within lower portions of wakes resulting in upstream mountain wakes enveloping wind turbines. Consequently, these upstream mountains affect turbine performance whereby a decrease followed by an increase occurs as distance between relief features increases. This paper elucidates how environmental factors impact turbine power output performance under complex terrains while providing valuable insights for constructing wind farms within such challenging environments.","PeriodicalId":475,"journal":{"name":"Applied Solar Energy","volume":"60 5","pages":"743 - 754"},"PeriodicalIF":1.204,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative Analysis of Semi-Transparent Photovoltaic Skylight and Traditional Roof Glazing 半透明光伏天窗与传统屋顶玻璃的对比分析

IF 1.204

Applied Solar Energy Pub Date : 2025-06-10 DOI: 10.3103/S0003701X24602539

Guoqing Yu, Meng Chen, Yihuan Zhu, Daina Luo

{"title":"Comparative Analysis of Semi-Transparent Photovoltaic Skylight and Traditional Roof Glazing","authors":"Guoqing Yu, Meng Chen, Yihuan Zhu, Daina Luo","doi":"10.3103/S0003701X24602539","DOIUrl":"10.3103/S0003701X24602539","url":null,"abstract":"Semi-transparent photovoltaic (STPV) skylights can generate electricity while meeting the needs of indoor lighting, which has an impact on building energy consumption. In this paper, we analyzed a double-layer semi-transparent photovoltaic (DL-STPV) skylight with a light transmittance of 20% in Beijing based on the established and verified model, and compared it with two types of traditional roof glazing. An equivalent electrical method was used to evaluate the energy performance of the DL-STPV skylight. In summer, the total equivalent electricity of the DL-STPV skylight is 7.0 kWh/m2, which is 103.3 kWh/m2 lower than that of double skin insulating glazing (DSIG) and 83.2 kWh/m2 lower than that of DSIG with Low-E, respectively; In winter, the total equivalent electricity of DL-STPV skylight is –44.9 kWh/m2, which is 34.7 kWh/m2 lower than that of DSIG and 31.3 kWh/m2 lower than that of DSIG with Low-E, respectively. The results showed that the DL-STPV skylight in Beijing reduced the air conditioning load in summer and increased the heating load in winter. Although the model used in this paper ignores the heat storage effect of the glazing itself, it is estimated that the loads of air conditioning, refrigeration, and heating are still decreasing, and the annual reduction is significantly reduced.","PeriodicalId":475,"journal":{"name":"Applied Solar Energy","volume":"60 5","pages":"681 - 689"},"PeriodicalIF":1.204,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heating Capacity of Single-Story Passive Solar Houses 单层被动式太阳能房屋的采暖能力

IF 1.204

Applied Solar Energy Pub Date : 2025-06-10 DOI: 10.3103/S0003701X24603600

Sh. I. Klychev, S. A. Bakhramov, M. M. Zahidov, I. G. Kenzhaev, Zh. Zh. Tursunbaev, Sh. A. Marazakov, Sh. S. Tasheva

{"title":"Heating Capacity of Single-Story Passive Solar Houses","authors":"Sh. I. Klychev, S. A. Bakhramov, M. M. Zahidov, I. G. Kenzhaev, Zh. Zh. Tursunbaev, Sh. A. Marazakov, Sh. S. Tasheva","doi":"10.3103/S0003701X24603600","DOIUrl":"10.3103/S0003701X24603600","url":null,"abstract":"A one-dimensional non-stationary model of heat losses of a one-story, one-room passive solar house with three-layer walls (including thermal insulation) has been developed, taking into account the fluxes of incident and self-radiation. The one-dimensionality of the model is determined by the uniformity of all enclosing structures and thermal boundary conditions. It was found that heat losses or heating power in passive houses in the Central Asian region on sunny days are almost 50% less than on cloudy days. The influence of thermal insulation on heating output is significant. With thermal insulation of just 5 cm, heating power is reduced by 2.3 times, and with 10 cm, by 3.7 times. The thermal inertia of the walls affects the variation in heating power, as heating power begins to decrease after sunset and continues until nearly sunrise. With an increase in the thermal protection of the house, the amplitude of daily fluctuations in heating power decreases, and the time for heating power and the temperature state of the house enclosures to reach a quasi-stationary (regular) state increases.","PeriodicalId":475,"journal":{"name":"Applied Solar Energy","volume":"60 5","pages":"736 - 742"},"PeriodicalIF":1.204,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0