4.7 Article

Exergy analysis of a Combined Cooling, Heating and Power system integrated with wind turbine and compressed air energy storage system

Journal

ENERGY CONVERSION AND MANAGEMENT
Volume 131, Issue -, Pages 69-78

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2016.11.003

Keywords

CCHP; Wind energy; Compressed air energy storage; ORC; Absorption chiller; Exergy

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Utilizing renewable energies is the promising solution to the environmental problems which are brought about due to fossil fuel consumption. The fact that these kinds of energies are intermittent can be overcome with using energy storage systems. Wind energy coupled with compressed air energy storage systems is one of the best candidates in this respect. The main objective of this paper is to study the integration of this system with a Combined Cooling, Heating and Power cycle comprised of a gas turbine, an organic Rankine cycle and an absorption refrigeration system. Energy and exergy analyses are applied to the system and the effect of key parameters on the system performance are analyzed. The results show that under design condition, the system can generate 33.67 kW electricity, 2.56 kW cooling and 1.82 ton per day hot water with a round trip energy efficiency of 53.94%. Also exergy analysis reveals that wind turbine, combustion chamber and compress air storage system have the highest amount of exergy destruction respectively. Finally, sensitivity analysis shows that parameters related to gas turbine are the most prominent. parameters of the system which can change performance of the system considerably. (C) 2016 Elsevier Ltd. All rights reserved.

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