SET Proceedings 2978-4387 Caravel Press 10.65582/set.2009.038 2009.038 Reverse Series Triple-effect Absorption Cycle Integrated with Exhaust Heat Recovery Generator WangLeilei YangHongxing YouShijun Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong, China School of Environmental Science and Engineering, Tianjin University, Tianjin, China 31082009 8 978-3-9813246-1-7 1 6 31 August 2009 © 2009 Copyright WSSET 2009

A single absorption loop is proposed to be integrated with the gas-fired reverse series triple-effect absorption cycle to recovery exhaust waste heat to generate more refrigerant vapor. The simulation of the novel cycle and life cycle saving economic analysis are carried out to investigate the performance of its energy efficiency improvement. The results are also compared with an earlier double-effect study. It is shown that the exhaust temperature could decrease from 252°C to 136°C in the triple-effect cycle application with COP increasing by 2.6%, which is more significant than the efficiency improvement of the double-effect cycle. For a case study, the extra investment of the exhaust generator in the triple-effect cycle can be repaid in 4.3 years and revenue of RMB¥14000 is expected to be produced in the lifetime of this system, which indicates that this new cycle offers more benefits than the double-effect counterpart. The results can be used in future design of the triple-effect absorption machines.

 triple-effect reverse series exhaust absorption recovery generator 31 August to 3 September 2009 8th International Conference on Sustainable Energy Technologies SET2009 8 Aachen, Germany