期刊
ENERGY CONVERSION AND MANAGEMENT
卷 145, 期 -, 页码 182-203出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2017.04.081
关键词
Exergy; Trigeneration; Vapor absorption cycle; Space heating; Space cooling
资金
- Mehran University of Engineering Technology
An CCPP-based trigeneration system is proposed that would aid in harnessing the energy from stack and gas turbine exhaust gasses for meeting the heating and cooling demands of residential buildings. The system is investigated to exhibit the influence of various operating parameters on performance, CO2 emissions reduction, and exergy destruction in three modes of operation, i.e., power and heating (P&H), power heating and cooling (PH&C) and power and cooling (P&C), which is followed by optimization. The results show that the system capacity may reach to 80 MW space heating and 30 MW water heating in P&H-mode while in P&C-mode the available space cooling is 43 MW. On the other hand, in PH&C-mode 40 MW space heating, 15.5 MW water heating and 21 MW of space cooling is estimated. The results further reveal that the generator of vapor absorption chiller contributes a maximum share of exergy destruction amongst the heating and cooling components followed by the space heating air conditioning unit. According to the optimization results, a maximum energy efficiency of 90% is obtained in P&H-mode while 54% exergy efficiency in all modes corresponding to the maximum power outputs. (C) 2017 Elsevier Ltd. All rights reserved.
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