On enhancing energy harvesting performance of the photovoltaic modules using an automatic cooling system and assessing its economic benefits of mitigating greenhouse effects on the environment

2018 ◽  
Vol 376 ◽  
pp. 55-65 ◽  
Author(s):  
Jen-Cheng Wang ◽  
Min-Sheng Liao ◽  
Yeun-Chung Lee ◽  
Cheng-Yue Liu ◽  
Kun-Chang Kuo ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Cooling System ◽  
Economic Benefits ◽  
Photovoltaic Modules ◽  
Greenhouse Effects

Experimental and Theoretical Studies on Performance of GSHP Combined with Free Cooling System

2013 ◽  
Vol 368-370 ◽  
pp. 1232-1236
Author(s):  
Wei Xue Cao ◽  
Ru Chang ◽  
Can Zhang ◽  
Qiu Li Zhang
Keyword(s):  
Cooling Tower ◽  
Cooling System ◽  
Meteorological Parameter ◽  
Economic Benefits ◽  
Ground Source Heat Pump ◽  
Combined System ◽  
Climate Zones ◽  
Ground Source ◽  
Free Cooling ◽  
Experimental And Theoretical Studies

Ground-Source Heat Pump systems and tower cooling system have been studied in this paper individually by experiment and simulation using TRNSYS, the influencing factors such as meteorological parameter, cooling tower and subunit construction was analyzed. Results show that the combined system has ability to meet the cooling requirements in II building climate zones, the combined system will have energy-saving and obvious economic benefits by working through the year.

scholarly journals High‐efficiency photovoltaic modules on a chip for millimeter‐scale energy harvesting

2019 ◽  
Vol 27 (6) ◽  
pp. 540-546 ◽  
Author(s):  
Eunseong Moon ◽  
Inhee Lee ◽  
David Blaauw ◽  
Jamie D. Phillips
Keyword(s):  
Energy Harvesting ◽  
High Efficiency ◽  
Photovoltaic Modules

scholarly journals Analysis and Fabrication of an Active Cooling System for Reducing Photovoltaic Module Temperature

2017 ◽  
Vol 7 (5) ◽  
pp. 1980-1986
Author(s):  
A. Q. Jakhrani ◽  
A. R. Jatoi ◽  
S. H. Jakhrani
Keyword(s):  
Wind Speed ◽  
Flow Rate ◽  
Cooling System ◽  
Performance Comparison ◽  
Heat Extraction ◽  
Photovoltaic Module ◽  
Climatic Parameters ◽  
Photovoltaic Modules ◽  
Active Cooling ◽  
Pv Module

The purpose of this study is to fabricate and analyze an active cooling system for reducing photovoltaic (PV) module temperature and increasing its efficiency. An active cooling system was devised to cool the PV module. Two modules of same specifications were used for this study. One module was cooled, and other was left un-cooled for performance comparison. Solar radiations, wind speed, ambient temperature and temperatures at different points of the fabricated system were measured. The modules were mounted on a frame facing true south at the inclination of the latitude of the location. The measurements were taken during daytime with one hour intervals for two weeks. The temperatures at various points on cooled and un-cooled photovoltaic modules were noted using two different flow rates with 1 lit/min and 2 lit/min. It was discovered that the efficiency of PV module was enhanced from 6% to 7% during study period. The flow rate of 1lit/min was found more feasible for heat extraction as compared to the flow rate of 2lit/min. The wind speed was found to be more helpful for heat extraction from the modules as compared to other climatic parameters.

Annual Energy Harvesting of Passively Cooled Hybrid Thermoelectric Generator-Concentrator Photovoltaic Modules

2019 ◽  
Vol 9 (6) ◽  
pp. 1652-1660 ◽  
Author(s):  
Pedro M. Rodrigo ◽  
Alvaro Valera ◽  
Eduardo F. Fernandez ◽  
Florencia M. Almonacid
Keyword(s):  
Energy Harvesting ◽  
Thermoelectric Generator ◽  
Photovoltaic Modules

scholarly journals Optimizing Solar Collector Tilt Angle to Improve Energy Harvesting in a Solar Cooling System

2014 ◽  
Vol 48 ◽  
pp. 806-812 ◽  
Author(s):  
Paolo Corrada ◽  
John Bell ◽  
Lisa Guan ◽  
Nunzio Motta
Keyword(s):  
Energy Harvesting ◽  
Tilt Angle ◽  
Solar Collector ◽  
Cooling System ◽  
Solar Cooling ◽  
Solar Cooling System

Solar Assisted Desiccant Cooling Simulation for Different Climate Zones

2011 ◽  
Author(s):  
Wendell Concina ◽  
Suresh Sadineni ◽  
Robert Boehm
Keyword(s):  
Air Conditioning ◽  
Cooling System ◽  
Evaporative Cooling ◽  
The United States ◽  
Economic Benefits ◽  
Climatic Conditions ◽  
Hot Water ◽  
Low Grade ◽  
Cooling Systems ◽  
Climate Zones

Evaporative cooling is among the most cost effective methods of air conditioning, but is less efficient in humid climates. An evaporative system coupled with a desiccant wheel can operate effectively in broader climatic conditions. These cooling systems can substitute traditional vapor compression air conditioning systems as they involve environmentally friendly cooling processes with reduced electricity demand (which is commonly generated from fossil fuels) along with no harmful CFC based refrigerant usage. Furthermore, direct utilization of low grade energy sources such as solar thermal energy or flue gas heat can drive the desiccant regeneration process, thus providing economic benefits. This study presents the results of simulations of desiccant cooling system performance for different climate zones of the United States. Solar assisted desiccant air conditioning is particularly useful where there are abundant solar resources with high temperature and humidity levels. Building energy simulations determined cooling energy requirements for the building. Simulation of an evacuated solar hot water collector model provided the heat energy available for regeneration of the desiccant. Solid desiccant of common material such as silica gel used in a rotary wheel is simulated using established validated computer models; this is coupled with evaporative cooling. Transients of the overall system for different cooling loads and solar radiation levels are presented. Finally, feasibility studies of the desiccant cooling systems are presented in comparison with traditional cooling system. Further analysis of the data presents optimization opportunities. Energy savings were achieved in all climatic conditions with decreased effectiveness in more humid conditions.

scholarly journals Solar Green Roofs: A Unified Outlook Twenty Years On

2019 ◽  
Author(s):  
Rosaria Ciriminna ◽  
Francesco Meneguzzo ◽  
Mario Pecoraino ◽  
Mario Pagliaro
Keyword(s):  
Renewable Energy ◽  
Urban Areas ◽  
Energy Production ◽  
Green Roofs ◽  
Economic Benefits ◽  
Symbiotic Relationship ◽  
Photovoltaic Modules ◽  
Wide Range ◽  
The World ◽  
Renewable Energy Production

Solar green roofs, namely rooftops functionalized with properly selected living vegetation and photovoltaic modules, achieve an ideal symbiotic relationship in which promotion of biodiversity and onsite renewable energy production are both enhanced whereas the roof provides a wide range of environmental, health, aesthetic and economic benefits. This study provides a unified outlook of this eminent sustainable technology at the dawn of its uptake across the world, especially in polluted urban areas.

scholarly journals Photovoltaic Modules for Indoor Energy Harvesting

2018 ◽  
Vol 14 (1) ◽  
pp. 5222-5231 ◽  
Author(s):  
Wafaa Abd El-Basit Zekri
Keyword(s):  
Energy Harvesting ◽  
Maximum Output Power ◽  
Monocrystalline Silicon ◽  
Photovoltaic Module ◽  
Fluorescent Light ◽  
Light Sources ◽  
Maximum Output ◽  
Photovoltaic Modules ◽  
Harvesting Systems ◽  
Optimum Solution

This paper presents the performance of indoor energy harvesting systems based on different photovoltaic modules (monocrystalline silicon, polycrystalline silicon, amorphous silicon and polymer) and artificial electric lighting sources (incandescent, fluorescent and cool white flood LED). In this concern, it is clearly proved that, maximum output power densities to be harvested from the photovoltaic module depends mainly on the spectral responses of both the light source and the module material. Herein, and from the study, experimental work, results and analysis, it is clear that monocrystalline silicon is the optimum solution for all light sources, followed by polycrystalline, whenever used with spot-and incandescent - lamps. On the other hand, amorphous samples were proved to be lightly sensitive to fluorescent light and cool white flood LED. Finally, polymer samples were weakly responded whenever exposed to any of the investigated light sources.

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