scholarly journals Thermodynamic performance analysis of geothermal and solar energy assisted power generation and residential cooling system

Author(s):  
Ozan SEN ◽  
Ceyhun YILMAZ
Author(s):  
Pardeep Garg ◽  
Pramod Kumar ◽  
Kandadai Srinivasan ◽  
Pradip Dutta

In this paper, a detailed thermodynamic performance analysis of a transcritical condensing (TC) cycle is performed with pure CO2 and a blend of 48.5 % propane with 51.5 % CO2 as working fluids. A realistic thermodynamic model is used incorporating irreversibilities in turbo-machineries and heat exchangers. The Key finding is that the addition of propane elevates the heat rejection temperature, but does not impair any of the performance indicators. Such a fluid may be useful for power generation in concentrated solar power applications by using which a hike of up to 2 % can be realized in the thermal efficiency of a power plant.


2019 ◽  
Vol 159 ◽  
pp. 113937 ◽  
Author(s):  
Chenghao Li ◽  
Jiangwei Liu ◽  
Siyang Zheng ◽  
Xingyu Chen ◽  
Jie Li ◽  
...  

2018 ◽  
Vol 1 (2) ◽  
pp. 40-51 ◽  
Author(s):  
Muhammad Burhan ◽  
Muhammad Wakil Shahzad ◽  
Kim Choon Ng

Standalone power systems have vital importance as energy source for remote area. On the other hand, a significant portion of such power production is used for cooling purposes. In this scenario, renewable energy sources provide sustainable solution, especially solar energy due to its global availability. Concentrated photovoltaic (CPV) system provides highest efficiency photovoltaic technology, which can operate at x1000 concentration ratio. However, such high concentration ratio requires heat dissipation from the cell area to maintain optimum temperature. This paper discusses the size optimization algorithm of sustainable cooling system using CPVT. Based upon the CPV which is operating at x1000 concentration with back plate liquid cooling, the CPVT system size is optimized to drive a hybrid mechanical vapor compression (MVC) chiller and adsorption chiller, by utilizing both electricity and heat obtained from the solar system. The electrolysis based hydrogen is used as primary energy storage system along with the hot water storage tanks. The micro genetic algorithm (micro-GA) based optimization algorithm is developed to find the optimum size of each component of CPVT-Cooling system with uninterrupted power supply and minimum cost, according to the developed operational strategy. The hybrid system is operated with solar energy system efficiency of 71%.


2010 ◽  
Vol 25 (9) ◽  
pp. 994-998 ◽  
Author(s):  
A-Lin JI ◽  
He-Jun LI ◽  
Hong CUI ◽  
Wen CHENG

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