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Готові списки джерел за темами / Collector performance parameters / Статті в журналах

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Статті в журналах з теми "Collector performance parameters"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Wijeysundera, N. E., M. N. A. Hawlader, and K. Y. Foong. "Estimation of Collector Performance Parameters From Daily System Tests." Journal of Solar Energy Engineering 118, no. 1 (1996): 30–36. http://dx.doi.org/10.1115/1.2847922.

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A test procedure to estimate the daily mean values of the linear collector characteristics, FR,(τα) and FRUL, from the measured variation of the storage tank temperature was investigated. The Levenberg-Marquardt algorithm was used for parameter estimation. Two flat-plate collectors were tested over a period of 11 days each to study the feasibility of the test procedure. The tests were conducted under variable weather conditions and inlet water temperatures. The standard deviation for the daily mean values of FR(τα) and FRUL were about 2.8 percent and 4 percent, respectively. The differences be

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2

Amarnath., K., Gopal. P. Dr., M. Sridharan., and T. Senthil Kumar Dr. "Performance Improvement Analysis and Simulation of Solar PV T Water Collector." International Journal of Trend in Scientific Research and Development 2, no. 4 (2018): 960–65. https://doi.org/10.31142/ijtsrd14201.

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The objective of this paper is to review the collection of literature available on the Photo Voltaic and Thermal Solar Collector. The review paper is presented to show the comparison of findings obtained by various research works. In solar collector, the solar energy from the sun is converted in to electrical energy by means of Photo Voltaic panel and thermal energy by converting cold water into hot water. Nowadays, solar collector is preferred in many industries and house hold applications to reduce the demand of electricity by increasing the effective utilization of solar energy coming from

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3

Wang, Pin-Jian, Li Li, Qi-Nan Wei, and Jia-Bin Wu. "Study on Collection Performance of Hydraulic Polymetallic Nodule Collector Based on Solid–Liquid Two-Phase Flow Numerical Simulation." Applied Sciences 13, no. 23 (2023): 12729. http://dx.doi.org/10.3390/app132312729.

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The hydraulic collector is an important device for collecting seafloor polymetallic nodules. In this study, a hydraulic polymetallic nodule collector with two acquisition nozzles and one transmission nozzle is described. The numerical model of the hydraulic collector is established based on the solid–liquid two-phase flow method, and it is verified by experimental tests. On this basis, the collection mechanism of the hydraulic collector is analyzed, and the effects of structural parameters and working parameters on its collection performance are explored. The results show that the collection h

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4

Amrutkar, Sunil K. "Solar Flat Plate Collector Performance By Variation of Different Parameters." IOSR Journal of Engineering 02, no. 02 (2012): 369–71. http://dx.doi.org/10.9790/3021-0202369371.

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5

Mohd. Amirul Hilmi Mohd Hanoin, Nor Amirah Safiah Muhamad, Nadzirah Mohd Mokhtar, Amir Abdul Razak, and Muhamad Sukri Hadi. "Effect Of Design Parameters of Serpentine-Shaped Flat Plate Solar Collector Under Malaysia Climate Conditions." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 88, no. 1 (2021): 71–80. http://dx.doi.org/10.37934/arfmts.88.1.7180.

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Solar thermal energy plays a vital role in the industrial sector, especially for water heating applications. Further research to improve the efficiency of flat plate solar collectors by focusing on collector design modification is imperative. This research aimed to carry out an experimental investigation on comparative designs and fabrication approaches that deal with the analysis of flat plate solar collector thermal performance, thermal efficiency, the effect of various mass flow rates, and pressure drop analyses. In this paper, a different design modification of pipe collector with serpenti

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6

Yan, Xiao, XiaoMing Zhang, and YiLi Wei. "Mathematical Model and Performance Analysis of Aluminum Tube Collector." Journal of Physics: Conference Series 2260, no. 1 (2022): 012049. http://dx.doi.org/10.1088/1742-6596/2260/1/012049.

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Abstract Aluminum tube collector is a new type of collector that can be popularized, which can absorb solar energy and air energy at the same time. By analyzing the heat transfer process of aluminum tube collector, its mathematical model is established, and iterative calculation is carried out in Visual Basic to obtain the relationship between collector efficiency and different parameters. Finally, it is concluded that the thermal efficiency of aluminum tube collector is about 1.5, which is much higher than that of traditional collector; In sunny days with high ambient temperature, aluminum tu

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7

Marc-Alain Mutombo, N., Freddie Inambao, and Glen Bright. "Performance analysis of thermosyphon hybrid photovoltaic thermal collector." Journal of Energy in Southern Africa 27, no. 1 (2016): 28. http://dx.doi.org/10.17159/2413-3051/2016/v27i1a1564.

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The conversion of solar irradiance into electricity by a photovoltaic module (PV) is 6– 7% of the incoming energy from the sun depending on the type of technology and the environmental parameters. More than 80% of incoming energy from the sun is reflected or absorbed by the solar module. The fraction of energy absorbed increases with solar cell temperature and the cells’ efficiency drops as a consequence. The efficiency of a PV module is improved by combining a PV module and a thermal collector in one unit, resulting in a hybrid photovoltaic and thermal collector (PV/T). The purpose of this pa

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8

D’Alessio, Matteo, John Lucio, Ernest Williams, et al. "Flow Analysis through Collector Well Laterals: A Case Study from Sonoma County Water Agency, California." Water 10, no. 12 (2018): 1848. http://dx.doi.org/10.3390/w10121848.

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The Sonoma County Water Agency (SWCA) uses six radial collector wells along the Russian River west of Santa Rosa, to provide water for several municipalities and water districts in north-western California. Three collector wells (1, 2, and 6) are located in the Wohler area, and three collector wells (3, 4, and 5) are located in the Mirabel area. The objective of this paper is to highlight the performance of the three collector wells located in the Mirabel area since their construction. The 2015 investigation showed a lower performance of Collectors 3 and 4 compared to their original performanc

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9

De Oliveira, Alessandro Estarque, Mônica Lopes Aguiar, and Vádila Giovana Guerra. "Influence of electrospinning parameters on the morphology and performance of filter media." Conjecturas 22, no. 11 (2022): 819–35. http://dx.doi.org/10.53660/conj-1449-2a09.

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Nanofibrous filter media used for filtration of nanoparticles dispersed in air can be produced by electrospinning of polymer solutions. However, this process is influenced by many operating variables, including the solution feed conditions. In this work, a 2³ factorial design was used to evaluate the influence of electrospinning variables on the morphology and performance characteristics of filter media composed of polyvinyl alcohol (PVA) nanofibers. The variables considered were needle-collector distance, collector rotation speed, and spinning time. The dependent variables were the median and

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10

Wen, Ming Yang, Shi Qing Qi, and Ning Ning Chen. "Design of Solar Collector Tubes Thermal Performance Parameters Detection Device on Embedded Linux." Applied Mechanics and Materials 446-447 (November 2013): 887–91. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.887.

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This paper illustrates detection principle and detection method of thermal performance parameter of solar collector tubes, design a device to detect thermal performance parameter of solar collector tubes. This device adopts S3C2440 microprocessor which is developed with ARM920T core and embedded Linux system as hardware platform and develops the application program. This device could achieve real-time multitasking function detection of the thermal performance parameter of solar collector tubes, at the same time the device will transfer the data to computer via LAN communication. Due to the app

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11

Kalogirou, Soteris A. "Prediction of flat-plate collector performance parameters using artificial neural networks." Solar Energy 80, no. 3 (2006): 248–59. http://dx.doi.org/10.1016/j.solener.2005.03.003.

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12

Boubekri, Mahmoud, Abla Chaker, and Ali Cheknane. "Numerical approach for performance study of hybrid PV/Thermal collector." Journal of Renewable Energies 12, no. 3 (2023): 355–68. http://dx.doi.org/10.54966/jreen.v12i3.145.

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According to their thermophysical properties, the solar collectors using the working fluid (air, water) show considerably poor efficiency. In this paper, we study the combination of the collector with a photovoltaic module as an efficient method for improving the system performance, particularly the electrical and thermal performance. The mathematical model presented here is based on the energy transfer phenomenon within the various components of the collector. Thus, the transfer equations discretization is carried out using the finite difference method. Our results clearly show the direct imp

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13

Li, Shui Lian, and Xin Li Wei. "The Parameter Analysis and Performance Comparison of Solar Air Collector." Applied Mechanics and Materials 209-211 (October 2012): 1814–19. http://dx.doi.org/10.4028/www.scientific.net/amm.209-211.1814.

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With the social progress and the development of the world economy, the contradiction between energy demand and supply is increasingly outstanding，so saving energy is the important task which the human are facing. Solar energy as a renewable clean energy is one of the potential energy applying on buildings. This article analyzes the geometric parameters of the solar air collector and summarizes the baffle types of the solar air collector and puts forward to methods improving the efficiency of solar air collector.

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14

Mandanka, Pravin B., and Dilipbhai M. Patel. "Comparative Performance Analysis and Optimization of Acrylic Evacuated Tube Solar Collector with Water in Glass Tube Collector Through RSM." ECS Transactions 107, no. 1 (2022): 4021–33. http://dx.doi.org/10.1149/10701.4021ecst.

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The dominant technique used to utilize solar energy to heat water for domestic, industrial, and commercial requirements is a solar water heater. This research work aims comparative performance analysis of acrylic evacuated tube solar collector with water in glass evacuated tube solar collector and also, to investigate the optimal value of process parameters affecting the performance of water in glass and acrylic evacuated tube solar collectors. In this research work, the intensity of solar radiation, tilt angle of the collector, and the time are considered as independent variables. The tempera

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15

Lu, Yalin, and Zhenqian Chen. "Numerical study on heat transfer performance of vacuum tube solar collector integrated with metal foams." International Journal of Low-Carbon Technologies 14, no. 3 (2019): 344–50. http://dx.doi.org/10.1093/ijlct/ctz005.

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Abstract Applying vacuum tube solar collector is one effective way to reduce heat loss in solar collection. However, low conductivity of pure water leads to poor heat transfer performance in vacuum tube. In order to enhance heat transfer in tube, a novel vacuum tube solar collector using water as medium and metal foams as filler is presented, which consists of outer glass tube, inner metal tube and metal foam filler. The heating process of vacuum tube with metal foam filler of different structural parameters (porosity in range of 0.8991–0.9546 and PPI of 5, 10 and 20) is numerically studied an

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16

Chamoli, Sunil. "Exergy analysis of a flat plate solar collector." Journal of Energy in Southern Africa 24, no. 3 (2013): 8–13. http://dx.doi.org/10.17159/2413-3051/2013/v24i3a3137.

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In this study, exergetic performance analysis of flat plate solar collector has been carried out analytically. A comprehensive mathematical modelling of thermal performance is simulated using MATLAB simulink and optimal geometrical and thermodynamic parameters are predicted pertaining to optimum performance of the system. The optimization procedure was applied to a typical collector and the optimum design points were extracted. The optimum values of collector inlet temperature, mass flow rate, absorber plate area, and fluid outlet temperature for maximum exergy inflow from the system have been

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17

Vasarevičius, Dominykas. "CONTROL AND DATA COLLECTION SYSTEM FOR SOLAR THERMAL COLLECTORS." Mokslas - Lietuvos ateitis 2, no. 1 (2010): 27–31. http://dx.doi.org/10.3846/mla.2010.006.

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The paper presents the architecture of the control and statistical data collection system for solar thermal collectors, describing its operating principle and analysis of individual elements, in order to anticipate possible problems and find their solutions. Expanding functionality of the controller of solar thermal collector with online features one can collect data on solar thermal collectors performance in different regions. The paper describes the structure diagram, according to which the system will register operational parameters of the heating system and weather conditions. Data transfe

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18

London˜o-Hurtado, Alejandro, and Alejandro Rivera-Alvarez. "Maximization of Exergy Output From Volumetric Absorption Solar Collectors." Journal of Solar Energy Engineering 125, no. 1 (2003): 83–86. http://dx.doi.org/10.1115/1.1530197.

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A model has been developed to study the behavior of Volumetric Absorption Solar Collectors (VASC) and the influence of the design parameters on the performance of the collector. The model’s approach is based on the use of several dimensionless numbers, each of them having a clear physical significance, which play a key role in the analysis of the collector. The model is then used to conduct a thermodynamic optimization of VASC, which gives the optimal design parameters that maximize the exergy output of the heat extracted from the collector. The results agree with the findings made by other au

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19

Yousef, B. A. A., and N. M. Adam. "Performance analysis for flat plate collector with and without porous media." Journal of Energy in Southern Africa 19, no. 4 (2008): 32–42. http://dx.doi.org/10.17159/2413-3051/2008/v19i4a3336.

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The present work involves a theoretical study to investigate the effect of mass flow rate, flow channel depth and collector length on the system thermal performance and pressure drop through the collec-tor with and without porous medium. The solution procedure is performed for flat plate collector in sin-gle and double flow mode. The analysis of the results at the same configuration and parameters shows that the system thermal efficiency increases by 10-12% in double flow mode than single flow due to the increased of heat removal, and increase by 8% after using porous medium in the lower chann

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20

Hussain, Muzamil, Syed Khawar Hussain Shah, Uzair Sajjad, Naseem Abbas, and Ahsan Ali. "Recent Developments in Optical and Thermal Performance of Direct Absorption Solar Collectors." Energies 15, no. 19 (2022): 7101. http://dx.doi.org/10.3390/en15197101.

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Solar energy is the most promising green energy resource, as there is an enormous supply of solar power. It is considered a good potential solution for energy crises in both domestic and industrial sectors. Nowadays, many types of solar systems are used for harvesting solar energy. Most of the research is focused on direct absorption solar collectors (DASCs) due to their ability to capture more solar energy. The effectiveness of DASCs is dependent on various factors, such as working fluid properties, geometry, and operating parameters. This review summarizes the impact of different design and

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21

Lee, Hoe-Gil, and Singiresu S. Rao. "Uncertain Analysis of a Stationary Solar Compound Parabolic Concentrator PV Collector System Using Fuzzy Set Theory." Journal of Renewable Energy 2018 (September 26, 2018): 1–12. http://dx.doi.org/10.1155/2018/2915731.

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The uncertain analysis of fixed solar compound parabolic concentrator (CPC) collector system is investigated for use in combination with solar PV cells. Within solar CPC PV collector systems, any radiation within the collector acceptance angle enters through the aperture and finds its way to the absorber surface by multiple internal reflections. It is essential that the design of any solar collector aims to maximize PV performance since this will elicit a higher collection of solar radiation. In order to analyze uncertainty of the solar CPC collector system in the optimization problem formulat

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22

Mysak, S., and S. Shapoval. "INNOVATIVE HYBRID SOLAR COLLECTOR FOR SUSTAINABLE HEAT AND POWER SUPPLY." Deutsche internationale Zeitschrift für zeitgenössische Wissenschaft 102 (April 22, 2025): 104–10. https://doi.org/10.5281/zenodo.15262077.

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The article examines the efficiency of using a hybrid thermal photovoltaic solar collector (HTPSC) in heat supply systems. The main objective of the study is to analyze the parameters that affect the thermal and electrical efficiency of the collector to maximize its performance.

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23

Hosouli, Sahand, João Gomes, Muhammad Talha Jahangir, and George Pius. "Performance Evaluation of Novel Concentrating Photovoltaic Thermal Solar Collector under Quasi-Dynamic Conditions." Solar 3, no. 2 (2023): 195–212. http://dx.doi.org/10.3390/solar3020013.

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Concentrating Photovoltaic Thermal (CPVT) collectors are suitable for integration in limited roof space due to their higher solar conversion efficiency. Solar sunlight can be used more effectively by CPVT collectors in comparison to individual solar thermal collectors or PV modules. In this study, the experimental investigation of a novel CPVT collector called a PC (power collector) has been carried out in real outdoor conditions, and the test set-up has been designed based on ISO 9806:2013. A quasi-dynamic testing method has been used because of the advantages that this method can offer for c

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24

Khan, Muhammad Sajid, Muhammad Abid, Khuram Pervez Amber, Hafiz Muhammad Ali, Mi Yan, and Samina Javed. "Numerical Performance Investigation of Parabolic Dish Solar-Assisted Cogeneration Plant Using Different Heat Transfer Fluids." International Journal of Photoenergy 2021 (April 28, 2021): 1–15. http://dx.doi.org/10.1155/2021/5512679.

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Parabolic dish solar collectors gain higher solar to thermal conversion efficiency due to their maximum concentration ratio. The present research focuses by integrating the parabolic dish solar collector to the steam cycle producing power and rate of process heating. Pressurized water, therminol VP1, and supercritical carbon dioxide are the examined working fluids in the parabolic dish solar collector. The aim of the current research is to observe the optimal operating conditions for each heat transfer fluid by varying inlet temperature and flow rate of the working fluid in the parabolic dish

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25

Gabániová, Ľubomíra, Dušan Kudelas, and Martin Prčík. "Modelling Ground Collectors and Determination of the Influence of Technical Parameters, Installation and Geometry on the Soil." Energies 14, no. 21 (2021): 7153. http://dx.doi.org/10.3390/en14217153.

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The main objective of this work was to model ground collectors with different parameters and geometries in ANSYS R19.2 and to simulate their operation during the heating season in Slovakia in order to determine their impact on the soil. At the same time, four new geometries in the shape of vertical spirals with diameters of 6, 8 and 10 m were designed and simulated to occupy a smaller area while maintaining performance similar to classical geometries. Due to climate change, heat pumps are becoming an important proxy in the heating of buildings and are an important part of decarbonisation plans

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26

Maitrik Shah, Beena Baloni, and Salim Channiwala. "Effect of Volute Collector on the Performance of Centrifugal Pump Based on Entropy Generation Analysis." International Journal of Engineering and Technology Innovation 12, no. 4 (2022): 347–63. http://dx.doi.org/10.46604/ijeti.2022.9741.

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A proper design of centrifugal pumps reduces power loss and improves efficiency. This study aims to investigate and analyze the effect of different volute collector configurations on centrifugal pump performance. Locations of losses are detected using the entropy production rate, whereas the number of losses is evaluated using user-defined codes. Three volute collectors are selected based on their connections with standard pipes. A steady flow numerical analysis is performed to determine the performance parameters of the centrifugal pump and select a modified volute collector design. Comparing

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27

Lahcene, A., A. Y. Benazza, and M. Benguediab. "The Effect of Geometric Parameters on the Performance of Solar Chimney: A Numerical and Experimental Study." Engineering, Technology & Applied Science Research 10, no. 6 (2020): 6456–61. https://doi.org/10.48084/etasr.3901.

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A numerical and experimental study of the geometric parameters of the solar chimney on the aerodynamic and thermal behavior of the air flow is presented in this paper. Several configurations were proposed in order to optimize the most efficient geometric one. Mass conservation, continuity, and energy equations are solved by the finite volume method. The increase in the radius of the collector and the inclination angle of the roof of the collector contributes favorably to the flow velocity to reach its maximum below the level of the tower, whereas it is inversely proportional to the height of t

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28

Li, Shaohua, Yang Li, Longlin Chen, Xianbin Wang, and Weihang Kong. "Collecting Performance Prediction for the Rubber Collector in Horizontal Wellbore Based on AutoML." Sensors 25, no. 6 (2025): 1836. https://doi.org/10.3390/s25061836.

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To objectively study the influencing factors of rubber collector performance in horizontal wellbores and identify parameter optimization directions, this paper introduces a modeling approach for rubber collectors in horizontal wellbores and develops a corresponding performance prediction method using AutoML(implemented with AutoGluon V1.2.0). Specifically, the study establishes a simulated model of a rubber collector in a horizontal wellbore, simulating its operational state under eccentric conditions due to gravity. It evaluates the impact of rubber elastic element properties (such as materia

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29

Naveenkumar, Rasaiah, Manickam Ravichandran, Balasubramaniam Stalin, et al. "Comprehensive review on various parameters that influence the performance of parabolic trough collector." Environmental Science and Pollution Research 28, no. 18 (2021): 22310–33. http://dx.doi.org/10.1007/s11356-021-13439-y.

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30

Sawhney, R. L., N. K. Bansal, and Inderjit. "Performance Parameters of an Evacuated Tubular Collector With a U-Tube Fluid Channel." Journal of Solar Energy Engineering 109, no. 4 (1987): 346–48. http://dx.doi.org/10.1115/1.3268228.

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31

Saad, H. E., K. S. Kaddah, A. A. Sliem, A. Rafat, and M. A. Hewhy. "The effect of the environmental parameters on the performance of asphalt solar collector." Ain Shams Engineering Journal 10, no. 4 (2019): 791–800. http://dx.doi.org/10.1016/j.asej.2019.04.005.

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32

Pranav, Mehta, Kumar Sumit, Patel Vivek, and Joshi Alpesh. "Mathematical modeling and performance assessment of solar air collector." Indian Journal of Science and Technology 13, no. 18 (2020): 1803–10. https://doi.org/10.17485/IJST/v13i18.608.

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Abstract <strong>Background:</strong> The use of solar air heater in drying has been increasing in recent years, because of their simplicity and economic configuration. <strong>Methods:</strong> Design and testing of the corrugated solar collector have been carried out in the present study. The overall system was designed and tested at Gujarat Power Engineering and Research Institute, Mehsana, India (GPERI, 23◦31'37.4"N72◦23'14.1"E). Exergetic efficiency, thermal efficiency, and temperature outlet at the same mass flow rate and solar irradiance were the major parameters for the

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33

Elsayied Ali, Khalid Taha, Dr Osama Mohammed Elmardi Suleiman Khayal, and Dr Elhassan Bashier Elagab. "DESIGN OF AN ABSORBER PIPE FOR SOLAR TROUGH COLLECTOR." International Journal of Engineering Applied Sciences and Technology 7, no. 6 (2022): 128–32. http://dx.doi.org/10.33564/ijeast.2022.v07i06.008.

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this paper presents a review of the design parameters, mathematical techniques and simulations used in the design of trough solar systems, along with a review on their applications. It deals with the design of an absorber pipe for a solar power plant system with trough collector. The pipe is designed for 1 KW power-generating unit accounting for collector performance and ambient parameters in north Sudan. It was found that the ambient temperature and wind speed have small effects on the output useful heat required in the present design.

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34

Wang, Dengjia, Xiaowen Wang, Yingya Chen, Wenjun Kang, and Yanfeng Liu. "Experimental Study on Performance Test of Serpentine Flat Plate Collector with Different Pipe Parameters and A New Phase Change Collector." Energy Procedia 158 (February 2019): 738–43. http://dx.doi.org/10.1016/j.egypro.2019.01.197.

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35

Meena, Chandan Swaroop, Sunita Meena та V. K. Bajpai. "Correlation between Absorber Plate Thickness δ and Collector Efficiency Factor Fˈ of Solar Flat-Plate Collector". Applied Mechanics and Materials 592-594 (липень 2014): 2341–44. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.2341.

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Solar collectors are the key component of active solar-heating systems. They collect the sun's energy, transform its radiation into heat, and then transfer that heat to a fluid. The solar thermal energy can be used in solar water-heating systems, solar pool heaters, and solar space-heating systems. The configuration of the Flat Plate Collector (FPC) is very important parameter which affects collector performance. The collector efficiency factor is directly affecting the efficiency of the solar flat-plate collector, this collector efficiency factor influenced with few other parameters, i.e. the

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36

Smaisim, Ghassan Fadhil, Azher M. Abed, Salema K. Hadrawi, and Farnaz Jahanbin. "Modelling and analysis of parameters of vacuum tube solar collector with U-shaped tube for different climates." Clean Energy 7, no. 3 (2023): 519–31. http://dx.doi.org/10.1093/ce/zkac073.

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Abstract In this study, based on the energy balance for different components of a double-layered vacuum-tube solar collector with a U-tube, the thermal performance of the collector unit is investigated separately using an analytical and quasi-dynamic method. The model used in this study determines the temperature distribution in longitudinal and radial directions. In this research, the effects of physical parameters and heat transfer including the size of the collector, thermal-loss coefficient, absorption coefficient, mass flow and thermal resistance of the air layer under different climate c

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37

Kumar, Khushmeet, Sushil Kumar, Deoraj Prajapati, Sushant Samir, Sashank Thapa, and Raj Kumar. "Solar Thermal Collector Roughened with S-Shaped Ribs: Parametric Optimization Using AHP-MABAC Technique." Fluids 10, no. 3 (2025): 67. https://doi.org/10.3390/fluids10030067.

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The current examination used a multi-criteria decision-making (MCDM) approach to optimize the roughness parameters of S-shaped ribs (SSRs) in a solar thermal collector (STC) duct using air as the working fluid. Different SSRs were tested to identify the combination of parameters resulting in the best performance. Geometrical parameters such as relative roughness pitch (PR/eRH) varied from 4 to 12, relative roughness height (eRH/Dhd) from 0.022 to 0.054, arc angle (αArc) from 30° to 75°, and relative roughness width (WDuct/wRS) from 1 to 4. The Nusselt number (NuRP) and friction factor (fRP), f

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38

Amirgaliyev, Yedilkhan, Murat Kunelbayev, Talgat Ormanov, Talgat Sundetov, and Salauat Daulbayev. "Experimental comparative analysis of operating characteristics of double circuit flat-plate solar collector with thermosiphon circulation and flat solar collector with chemical coating." Thermal Science, no. 00 (2021): 173. http://dx.doi.org/10.2298/tsci201108173a.

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The given article considers results of experimental measurements, productivity comparison and master controller executive system of flat-plate solar collector with thermosiphon circulation and flat solar collector with special chemical coating. There has been developed master controllers control module, which receives data from temperature and lighting sensors, obtained in operation process. The aim of the research is getting the solar collectors? optimal parameters, representing maximal usage performance index, controllability, as well as, construction type, allowing energy saving. In the rec

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39

Mausam, Kuwar. "Exploring the use of hybrid nanofluid in flat plate collector for sustainable energy harvesting: An experimental investigation." E3S Web of Conferences 552 (2024): 01029. http://dx.doi.org/10.1051/e3sconf/202455201029.

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Application of hybrid nanofluid work as a performance booster of solar collector and also provide an opportunity of sustainable development of eco-friendly energy harvesting. The performance of Flat plate solar collector (FPSC) has been investigated experimentally at different combinations of flow rate, intensity of radiation and angle of inclination. The comparative performance analysis of FPSC with two different working fluids i.e. distilled water and Cu-MWCNT hybrid nanofluid have also been made. The best combination of the operating parameters has been identified for performance optimizati

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40

Sinon, Souleymane, Salifou Tera, Oumar Sanogo, Sayouba Sandwidi, Bruno Korgo, and Sié Kam. "Experimental Investigation for Augmentation of Thermal Performance of Solar Air Collector." Asian Journal of Physical and Chemical Sciences 11, no. 3 (2023): 1–8. http://dx.doi.org/10.9734/ajopacs/2023/v11i3201.

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This paper presents a study of the thermal performance of a solar air collector used to heat the drying air of a fruit and vegetable dryer. The prototype collector could be a viable solution to improve energy efficiency and food security in Burkina Faso and other developing countries, by contributing to the reduction of post-harvest losses and the increase of income for local agricultural producers. The collector is first realized by using black painted cans as air ducts, perforated to increase turbulence, and a glass covering the collection surface. After realization, the collector is connect

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41

Ahn, Jong-Gwon, Ji-Suk Yu, Fred Edmond Boafo, Jin-Hee Kim, and Jun-Tae Kim. "Simulation and Performance Analysis of Air-Type PVT Collector with Interspaced Baffle-PV Cell Design." Energies 14, no. 17 (2021): 5372. http://dx.doi.org/10.3390/en14175372.

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A Photovoltaic Thermal (PVT) collector produces heat and electricity simultaneously. Air-type PVT collector uses air as a transfer medium to take heat from PV back side surface. The performance of the air-type PVT collector is affected by design elements such as PV types, inside structures in heat collecting space (baffle or fins), the shape of the air pathway, etc. In this study, an advanced air-type PVT collector was designed with curved baffles (absorber) to improve thermal performance. Within the air-type PVT collector, PV cells were arranged in an interspaced design, and the curved baffle

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42

Abdulhussain, Mustafa Ahmed. "Investigation of salt contamination effects on the performance characteristics of the evacuated tubes solar water heater." Kufa Journal of Engineering 4, no. 2 (2013): 15–28. http://dx.doi.org/10.30572/2018/kje/421336.

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The influence of salt layer contamination of thickness below (2 mm) on solar evacuated tubes water heater performance parameters was investigated experimentally in several operating weather conditions on October and November 2011 at Baghdad location taking into consideration the effect of ambient conditions and collector inclination angle. It was concluded that the salt thickness have a minor effect on the collector efficiency, water circulation in the tubes and the heat loss coefficient from the storage tank. While on the other hand, the collector angle and the ambient have a greater effect o

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43

Aoul, Kheira Tabet, Ahmad Hasan, and Hassan Riaz. "Solar water heating systems for different buildings under a hot climate; parametric optimization and economic analysis." Sustainable Buildings 3 (2018): 3. http://dx.doi.org/10.1051/sbuild/2018002.

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Building applied solar thermal systems are considered by different stakeholders an attractive alternative to traditional space and water heating systems. However, their performance depends largely on climatic conditions, water heating needs and operational parameters which, in turn, offer opportunities for performance optimization. The present research attempts to provide architects with a design decision tool that integrates solar thermal collectors efficiently to meet hot water demand for various building types inclusive of residential, commercial and industrial in a hot climate. The analysi

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44

Akyalçın, Levent. "Performance optimization of an air-breathing PEM fuel cell." Chemical Industry and Chemical Engineering Quarterly 25, no. 3 (2019): 289–98. http://dx.doi.org/10.2298/ciceq180612007a.

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In this study, Taguchi?s experimental design is used to determine the optimum component combination of a membrane electrode assembly and cathode current collector opening geometry to obtain maximum power density of an airbreathing polymer electrolyte membrane fuel cell at 0.5 V. An analysis of variance was conducted to figure out the optimum levels and significant differences of the effect of the combinations, followed by a performance measurement analysis. Experimental investigations of the effecting parameters enabled the determination of the optimum configuration of the MEA and cathode curr

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45

Chang, S. C., and J. A. Roux. "Thermodynamic Analysis of a Solar Zeolite Refrigeration System." Journal of Solar Energy Engineering 107, no. 3 (1985): 189–95. http://dx.doi.org/10.1115/1.3267677.

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A solar zeolite-water absorption refrigeration unit was studied. Thermodynamic expressions were derived to predict the system performance. The operating range and optimum design parameters for the zeolite system were determined. The main parameters governing performance were: solar collector type, ambient temperature, and absorber properties. Results are shown for various solar collector types and various zeolite types. A desorption initiation temperature is shown to exist. The analysis is not based on empirical heat of absorption data, but rather on a zeolite properties relationship (log Pv v

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46

Zhang, Y., and J. Chen. "The Thermodynamic Performance Analysis of an Irreversible Space Solar Dynamic Power Brayton System and its Parametric Optimum Design." Journal of Solar Energy Engineering 128, no. 3 (2006): 409–13. http://dx.doi.org/10.1115/1.2212440.

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A solar dynamic (SD) power system composed of a concentrating solar collector and an irreversible Brayton cycle system is set up, where the heat losses of the collector are dominated by the radiation, the heat transfer between the collector and the Brayton cycle system obeys Newton’s law, and the heat transfer between the Brayton cycle system and the ambient obeys the radiant heat transfer law. The cycle model is used to investigate synthetically the influence of the radiant heat losses of the collector, the finite-rate heat transfer, and the irreversible adiabatic processes in the Brayton cyc

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47

Nouar, Hadda, Abdelghani Azizi, Younes Chiba, and Toufik Tahri. "Parametric Study of the Effective parameters on the Performance of Solar Chimney Power Plant." International Journal of Energetica 6, no. 1 (2021): 34. https://doi.org/10.47238/ijeca.v6i1.157.

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The solar chimney power plant (SCPP) is an effective option for electrical energy production from solar energy. In this paper, a numerical model to predict the SCPP performance is developed. The effects of collector angle and solar radiation are investigated on the parameters of air as the velocity and temperature. The study shows that when the collector angle is 20°, the velocity maximum is 1.8 m/s at the chimney base and the maximum temperature is 332.1k. in addition, increased solar radiation produces an increase in temperature (from 400 w/m² to 900 w/m²) and air velocity (from 22.25 m/s to

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48

Ma, Jinwei, Haitao Wang, Yanping Wang, Wei Sun, and Jie Ji. "Performance Investigation and Structure Optimization of a Flat Dual-Function Solar Collector." International Journal of Photoenergy 2015 (2015): 1–11. http://dx.doi.org/10.1155/2015/532059.

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The performance of a dual-function solar collector (DFSC) that can work as either water heater or air heater depending on seasonal requirement is investigated via both experimental and numerical approaches in this paper. The numerical results are well consistent with the experimental results. Daily efficiency of the thermosiphon system with DFSC is more than 55% in water heating mode and the instantaneous air heating efficiency of the collector reaches 60%. The effects of inner parameters on the thermal efficiency of the collector are analyzed by numerical simulations of the operation of DFSC

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49

Prasetyo, Singgih D., Eko P. Budiana, Aditya R. Prabowo, and Zainal Arifin. "Modeling Finned Thermal Collector Construction Nanofluid-based Al2O3 to Enhance Photovoltaic Performance." Civil Engineering Journal 9, no. 12 (2023): 2989–3007. http://dx.doi.org/10.28991/cej-2023-09-12-03.

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Анотація:

Extensive research has been conducted to address the issue of the reduced efficiency of solar photovoltaic (PV) cells at high temperatures. To address this problem, a hybrid cooling system has been developed. This system uses a thermal collector to convert waste heat into reusable heat. Selecting the best configuration and operational parameters for the collector is crucial for maximizing system performance. To achieve this, we conducted computational fluid dynamics (CFD) modeling using ANSYS. Various factors affecting the cooling of PV solar cells were analyzed, including the collector design

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50

Sahlaoui, K., H. Oueslati, F. Belkhiria, H. Gammoudi, and S. Ben Mabrouk. "Design and Modeling for the Performance Enhancement of Solar Photovoltaic/Thermal (PV/T) Collectors." International Journal of Air-Conditioning and Refrigeration 28, no. 02 (2020): 2050015. http://dx.doi.org/10.1142/s2010132520500157.

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In this paper, a simulation of a photovoltaic–thermal (PV/T) hybrid solar system with longitudinal fins absorbers was developed to determine optimal geometry parameters for conventional design of this system. In this case, we used a dynamic model based on the principle of the airflow rate to determine the optimum design of the PV/T system for each airflow velocity. In this regard, the influences of the geometric parameters (number, height) on the collector performance of each model with different flow velocities were investigated. The mathematical model is developed using the energy balance eq

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