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photovoltaic-thermal-system
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Experimental Investigation of PVT System Combined with Thermoelectric Module
, M.Sc. Thesis Sharif University of Technology ; shafii, Behshad (Supervisor) ; Saboohi, Yadollah (Supervisor)
Abstract
Photovoltaic phenomena is the base of Photovoltaic cells technology that can transform the solar insolation to electricity directly. In this transformation, the solar insolation intensity is the important factor to increase the performance of the Photovoltaic cells but one of the biggest barriers in the extension way of this technology is its more cost that need to be decrease. Concentration of solar radiation method is the best way to increase the performance of Photovoltaic systems and decrease its initial cost. At this project a novel structure of solar parabolic through concentrator is investigated experimentally and analytically. The usage of Thermoelectric module with Photovoltaic...
Experimental Investigation of Photovoltaic/thermal-Thermoelectric Hybrid System with Phase Change Material
, M.Sc. Thesis Sharif University of Technology ; Shafiee, Mohammad Behshad (Supervisor) ; Borooshaki, Mehrdad (Supervisor)
Abstract
Nowadays energy consumption increases in our daily life and incredibly enhancement of growth rate can be seen recent years. Hence, the use of renewable energy is prioritized. Solar energy is one of the choices because it is free and available. In this research, it has been tried to get electrical and thermal power at a reasonable cost both during the day and night. The system is equipped with a linear parabolic concentrator with a collector installed in the center of the concentrator which has been installed on its faces photovoltaic cells and thermoelectric modules, and five different systems have been tested with different components. Also, the paraffin has been used as a phase change...
Experimental Study on Increasing the Electrical Efficiency of Photovoltaic Panel with Decreasing Rear Surface Temperature
, M.Sc. Thesis Sharif University of Technology ; Moosavi, Ali (Supervisor) ; Shafiee, Afshin (Co-Advisor)
Abstract
Hybrid photovoltaic thermal system (PV/T) is a pioneer mechanical and electrical system which can produce both thermal and electrical energy for domestic or industrial purposes. As the solar cell’s material is semiconductor, the electrical output of them reversely modifies with the reduction of solar cell’s operating temperature. One of the most operational and cost-effective methods that has been investigated is active cooling. The photovoltaic panel cools down with a channel under the PV’s rear surface and a fan in the channel outlet. The producing heat can warm up cold water of a house or a factory. In addition to active cooling, it is smart to utilize passive cooling such as artificial...
Thermodynamic analysis of a photovoltaic thermal system coupled with an organic Rankine cycle and a proton exchange membrane electrolysis cell
, Article International Journal of Hydrogen Energy ; Volume 47, Issue 41 , 2022 , Pages 17894-17913 ; 03603199 (ISSN) ; Hakkaki Fard, A ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
In this study, the performance of a Photovoltaic Thermal-Organic Rankine Cycle (PVT-ORC) system combined with a Proton Exchange Membrane Electrolysis Cell (PEMEC) is investigated. A combined numerical/theoretical model of the system is developed and used to evaluate the effect of various system design parameters. In addition, the effects of using water, ethylene glycol, and a mixture of water and ethylene glycol (50/50) as the working fluid of the PVT system and R134a, R410a, and R407c as the working fluid of the ORC cycle on the performance of the PVT-ORC-PEMEC system are studied. Based on the results, R134a and water demonstrated the best performance as the working fluid of the ORC and PVT...
Experimental Investigation of a Multi-Purpose Energy System Composed of Pulsating Heat Pipe, Solar Collector and PCM
, Ph.D. Dissertation Sharif University of Technology ; Saeedi, Mohammad Hassan (Supervisor)
Abstract
In solar systems, the required space and cost, the impossibility of continuous access to energy, energy storage and optimal use of the received energy are the basic parameters and issues. Therefore, with the knowledge of these cases, proposing ideas and approaches to study the possibility of reducing the above mentioned issues are of the main objectives of this research. In solar thermal systems and solar electrical systems, the collector and photovoltaic panels are the main components, respectively. However, the studies show that there are issues regarding the existing collectors and photovoltaic panels, e.g. the flat-plate type which is most used in solar systems, and the basis is not...
Analysis of Transition of A System from Third Generation to Fourth Generation and Prediction of Its Optimum Behavior
, M.Sc. Thesis Sharif University of Technology ; Saidi, Mohamed Hassan (Supervisor)
Abstract
The purpose of the current study is the thermodynamic, economic and environmental analysis of a cogeneration system capable of generating power, freshwater and/or air conditioning (AC) used in buildings. A photovoltaic-thermal system was used in conjunction with a concentrated reflector in order to generate power and heat. Photovoltaic cells and the cogeneration cycle turbine were tasked with generating electric power. In addition, a portion of the heat generated by the thermal collector was used to preheat the working fluid of the third-generation cogeneration cycle and another portion was used to produce freshwater. In order to provide the AC needed during summer, the cogeneration cycle...
Modeling Integration of Solar Thermo Photo Voltaic Systems (STPV) in Multi Products Energy Conversion System
, M.Sc. Thesis Sharif University of Technology ; Saboohi, Yadolla (Supervisor) ; Fathi, Amir Hossein (Supervisor)
Abstract
The water and energy demand increase as the population grows. Increased usage of energy leads to scarcity of available resources and limited absorption capacity of environment. Development of efficient and environmentally compatible energy conversion technologies are conceived as an important option for resolving pressing challenges. Compatibility with environment requires considerable reduction in the share of fossil fuels and efficient utilization of renewable energy sources. Hence, development of high-efficiency solar energy systems is becoming an important challenge in the energy sector. The present study is involved with development an integrated solar system based on the application of...
Design of a Hybrid Residential Compressed Air Energy Storage System Focusing on Its Economic Considerations
, M.Sc. Thesis Sharif University of Technology ; Saeedi, Mohammad Hassan (Supervisor)
Abstract
In recent years, energy storage systems have received widespread attention from researchers to increase the reliability of the power grid. These systems have different types that compressed air system is of special importance due to its high stored energy and long life. In this system, the surplus of electricity generated from renewable energy sources or grid electricity at low power consumption is compressed and stored in a tank. When there is a need for power consumption or peak power consumption, compressed air will generate electricity by passing through the turbine and will help the network. Large-scale type of the system requires special geographical location for air storage; for this...
Experimental investigation of the effects of corona wind on the performance of an air-cooled PV/T
, Article Renewable Energy ; Volume 127 , 2018 , Pages 284-297 ; 09601481 (ISSN) ; Kasaeian, A ; Amidpour, M ; Nasirivatan, S ; Mousavi, S ; Sharif University of Technology
Abstract
In the present study, enhancing the heat transfer is experimentally investigated by the electro-hydrodynamics (EHD) through a single-pass air-cooled PV/T (Photovoltaic/Thermal System). The corona wind increases the heat transfer coefficient by producing a secondary flow and vortex, and consequently, increases the PV/T system efficiency. The effects of the corona wind are studied by changing the voltage values and the flow rates in the air channel. The results show that the corona wind is effective on enhancing the system performance; so that the heat transfer coefficient increases by 65% in natural flow regime by applying 11 kV voltage in the pilot setup. Totally, the thermal efficiency of...
Numerical investigation of the effects of a copper foam filled with phase change materials in a water-cooled photovoltaic/thermal system
, Article Energy Conversion and Management ; Volume 163 , 2018 , Pages 187-195 ; 01968904 (ISSN) ; Kasaeian, A ; Shafii, M. B ; Jahangir, M. H ; Sharif University of Technology
Elsevier Ltd
2018
Abstract
The purpose of the present study is to investigate the thermal performance of a photovoltaic/thermal system, integrated with phase change materials in porous medium. For this purpose, a metal foam was employed as porous medium and the performance of five different PCMs, as organic and inorganic, were examined as well. Moreover, the effects of different key parameters such as the mass flow rate, solar irradiance, inlet water temperature and inclination were studied. Finally, the simulation results were compared with a water-cooled photovoltaic/thermal without incorporating PCMs and porous medium, and thermal performance of the three PV/T cases were reported. The highest thermal efficiency of...
Experimental analysis of a cooling system effect on photovoltaic panels’ efficiency and its preheating water production
, Article Renewable Energy ; 2018 ; 09601481 (ISSN) ; Saboohi, Y ; Fathi, A ; Sharif University of Technology
Elsevier Ltd
2018
Abstract
This paper addresses a low complexity and high efficient cooling system applicable on photovoltaic (PV) system leading to enhance electrical efficiency and provide preheated water. The developed system consists of a photovoltaic panel, a cooling water system establishing a uniform surface temperature, and a solar water heater. According to the proposed system characteristics, the setup is constructed based on a single mono-crystalline solar panel to absorb more solar radiation intensity and generate more electrical energy per area in compare to a poly-crystalline panel. The preheated water produced by absorbed heat from the photovoltaic is conducted to a solar water heater to satisfy...
A numerical study of dust deposition effects on photovoltaic modules and photovoltaic-thermal systems
, Article Renewable Energy ; Volume 135 , 2019 , Pages 437-449 ; 09601481 (ISSN) ; Hakkaki Fard, A ; Sharif University of Technology
Elsevier Ltd
2019
Abstract
Dust deposition on the surface of solar systems is one of the main parameters that significantly affects the performance of such systems. In this study, the effect of dust deposition density on the performance of photovoltaic modules (PV) and photovoltaic-thermal systems (PVT) is numerically investigated. Accordingly, all layers of a monocrystalline silicon PV module for both systems are simulated. Moreover, the effect of various system parameters on the performance of both clean and dusty PV module and PVT system are studied. The studied parameters included: solar radiation intensity, ambient temperature, coolant inlet temperature, and coolant inlet velocity. The obtained results indicate...
Experimental analysis of a cooling system effect on photovoltaic panels' efficiency and its preheating water production
, Article Renewable Energy ; 2019 , Pages 1362-1368 ; 09601481 (ISSN) ; Saboohi, Y ; Fathi, A ; Sharif University of Technology
Elsevier Ltd
2019
Abstract
This paper addresses a low complexity and high efficient cooling system applicable on photovoltaic (PV) system leading to enhance electrical efficiency and provide preheated water. The developed system consists of a photovoltaic panel, a cooling water system establishing a uniform surface temperature, and a solar water heater. According to the proposed system characteristics, the setup is constructed based on a single mono-crystalline solar panel to absorb more solar radiation intensity and generate more electrical energy per area in compare to a poly-crystalline panel. The preheated water produced by absorbed heat from the photovoltaic is conducted to a solar water heater to satisfy...
A numerical study on a photovoltaic thermal system integrated with a thermoelectric generator module
, Article Renewable Energy ; Volume 153 , 2020 , Pages 1261-1271 ; Parcheforosh, A ; Hakkaki Fard, A ; Amadeh, A ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
In this work, a three-dimensional numerical model is developed to investigate the performance of a photovoltaic thermal system integrated with a thermoelectric generator module (PVT/TE). Furthermore, the effects of various operating parameters such as solar radiation, coolant mass flow rate, and inlet and ambient temperatures on the performance of both the PVT and PVT/TE systems are investigated and compared. Based on the obtained results, the electrical efficiency of the PVT/TE system, when exposed to solar radiation of 600 and 1000 W/m2, is 6.23% and 10.41% higher than that of the PVT system, respectively. Besides, the electrical efficiency of the PVT and PVT/TE by increasing the inlet...
Hydrogen production performance of a photovoltaic thermal system coupled with a proton exchange membrane electrolysis cell
, Article International Journal of Hydrogen Energy ; 2021 ; 03603199 (ISSN) ; Hakkaki Fard, A ; Jalalidil, A ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
As one of the cleanest energies, hydrogen has attracted much attention over the past decade. Hydrogen can be produced using water electrolysis in a Proton Exchange Membrane Electrolysis Cell (PEMEC). In the present study, the performance of the PEMEC, powered by the Photovoltaic-Thermal (PVT) system, is scrutinized. It is considered that the PVT system provides the required electrical power of the PEMEC and preheats the feedwater. A comprehensive numerical model of the coupled PVT-PEMEC system is developed. The model is used to investigate the effect of various operating parameters, including solar radiation intensity, inlet feedwater temperature, and feedwater mass flow rate, on the...
Modeling and techno-economic study of a solar reverse osmosis desalination plant
, Article International Journal of Environmental Science and Technology ; Volume 19, Issue 9 , 2022 , Pages 8727-8742 ; 17351472 (ISSN) ; Hajialigol, P ; Boroushaki, M ; Shafii, M. B ; Sharif University of Technology
Springer Science and Business Media Deutschland GmbH
2022
Abstract
In this research, the design of a solar reverse osmosis desalination plant was investigated by integrating various components using TRNSYS and ROSA software. To this goal, a two-stage reverse osmosis system with 50% recovery in the city of Chabahar was modeled. The calculations were performed in three different case studies, i.e., a photovoltaic power plant, a solar collector power plant with Organic Rankine Cycles, and a photovoltaic thermal power plant with Organic Rankine Cycles, with the reverse osmosis desalination plant being a novel investigation. Water production and electrical energy generation of each case study were evaluated both on a daily and yearly bases. The simulation...
Hydrogen production performance of a photovoltaic thermal system coupled with a proton exchange membrane electrolysis cell
, Article International Journal of Hydrogen Energy ; Volume 47, Issue 7 , 2022 , Pages 4472-4488 ; 03603199 (ISSN) ; Hakkaki Fard, A ; Jalalidil, A ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
As one of the cleanest energies, hydrogen has attracted much attention over the past decade. Hydrogen can be produced using water electrolysis in a Proton Exchange Membrane Electrolysis Cell (PEMEC). In the present study, the performance of the PEMEC, powered by the Photovoltaic-Thermal (PVT) system, is scrutinized. It is considered that the PVT system provides the required electrical power of the PEMEC and preheats the feedwater. A comprehensive numerical model of the coupled PVT-PEMEC system is developed. The model is used to investigate the effect of various operating parameters, including solar radiation intensity, inlet feedwater temperature, and feedwater mass flow rate, on the...
Numerical investigation and parametric analysis of a photovoltaic thermal system integrated with phase change material
, Article Applied Energy ; Volume 238 , 2019 , Pages 734-746 ; 03062619 (ISSN) ; Salari, A ; Hakkaki Fard, A ; Ma, T ; Sharif University of Technology
Elsevier Ltd
2019
Abstract
In this paper, a comprehensive three-dimensional model of photovoltaic thermal system integrated with phase change material (PVT/PCM) is developed and simulated. The effect of some key parameters using parametric analysis on performance of PVT/PCM system with water as working fluid is investigated. Parameters considered in this study include the properties of PCM (i.e. melting temperature, enthalpy of fusion and thermal conductivity), solar radiation and mass flow rate. The parametric analysis ranges are selected according to the properties of the most of available PCMs on the market, which shows the practical application of the numerical research. Furthermore, a three-dimensional model of...