scholarly journals Thermal regulation of building-integrated concentrating photovoltaic system using phase change material

2016 ◽  
Author(s):  
Idris Al Siyabi ◽  
Shivangi Sharma ◽  
Tapas K. Mallick ◽  
Senthilarasu Sundaram
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Photovoltaic System ◽  
Thermal Regulation ◽  
Change Material

Cooling of Concentrated Photovoltaic System Using Various Configurations of Phase-Change Material Heat Sink

2016 ◽  
Author(s):  
Mohamed Emam ◽  
Mahmoud Ahmed ◽  
Shinichi Ookawara
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Heat Sink ◽  
Fluid Model ◽  
Heat Sinks ◽  
Photovoltaic System ◽  
Thermal Dissipation ◽  
Thermal Regulation ◽  
Change Material ◽  
Single Cavity

In the current work, a hybrid system including Concentrated photovoltaic (CPV) and phase change material (PCM) as a heat sink is considered as a single module to achieve high solar conversion efficiency. The main objective is to accelerate the thermal dissipation with a longer thermal regulation period. Thus, a new CPV-PCM system using various configurations of the PCM heat sink and different combinations of PCMs is investigated. This study presents a numerical simulation of the effects of PCM materials and designs on the CPV-PCM system performance. To estimate the thermal performance of the new CPV-PCM system, a comprehensive 2-D model for CPV layers integrated with PCMs is developed. This model couples a thermal model for CPV layers and a thermo-fluid model that considers the phase-change phenomenon using the enthalpy method. The model is numerically simulated at different configurations and combinations of PCM with various ranges of phase transition temperatures. Three different configurations of PCMs are investigated: one with a single cavity, and two with parallel arrangements including three and five cavities. Results indicate that the use of PCM heat sinks with three and five cavities increases the heat transfer inside the PCM and achieves a significant reduction of the solar cell temperature compared with a single cavity CPV-PCM system. Furthermore, thermal regulation effect and temperature uniformity of the CPV-PCM system is enhanced by using various combinations of PCMs.

scholarly journals Comparative analysis of a novel low concentration dual photovoltaic/phase change material system with a non-concentrator photovoltaic system

2019 ◽  
pp. 468-468
Author(s):  
Jawad Sarwar ◽  
Arshmah Hasnain ◽  
Ahmed Abbas ◽  
Konstantinos Kakosimos
Keyword(s):  
Phase Change ◽  
Flat Plate ◽  
Phase Change Material ◽  
System Analysis ◽  
Photovoltaic Cell ◽  
Photovoltaic System ◽  
Material System ◽  
To Receive ◽  
Change Material ◽  
Plate System

In this work, a novel design of a concentrated photovoltaic system with thermal management using phase change material is analyzed. The novelty lies in utilizing two mono-facial PV cells, installing one on upper side of the receiver to receive non-concentrated sunlight and installing another photovoltaic cell on bottom side to receive concentrated sunlight. An RT47 (melting range of 41-48?C) phase change material enclosed in an Aluminum containment regulates the temperature of the system. Parabolic trough concentrator is used to focus sunlight on the bottom photovoltaic cell with a concentration ratio of 25. A finite volume based coupled thermal, electrical and optical model is developed and the system is analyzed for environmental conditions of Doha, Qatar. Temperature regulation and electrical power output of upper photovoltaic cell and bottom concentrated photovoltaic cell of proposed design are compared to a conventional flat plate system. Analysis is made for one day of each month of a year. It is found that the proposed design maintains the temperature below 85?C for all months of a year. The performance of the proposed system is comparable to the conventional flat plate system and excels it with power production in the range of -4.7% and +21.7%.

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