Volume 10: Sustainable Energy Solutions for Changing the World: Part II

Thermodynamic performances of thermochemical recuperation in application for combined cooling, heating and power (CCHP) generation Yu Yuan, Zhang Bai, Bo Zheng, Wenxin Hu

Abstract

Combined cooling, heating and power (CCHP) is one of effective approach to enhance the energy conversion performances, in order to enhance the effective utilization of the waste heat, a thermochemical recuperation based CCHP production method is evaluated by employing methanol decomposition, and two power scenarios are considered of gas turbine (GT) and internal combustion engine (ICE). The newly developed CCHP system are mathematically modeled, the thermodynamic characteristics are evaluated and compared. The results indicate that a considerable high-temperature waste heat realize favorable recovery and produce high-quality syngas, the power efficiency is improved by 7.48%-13.7%, and the adjustment range on cooling/heating-to-power ratio can be evidently extended. Both the improved energy conversion efficiency and operation flexibility are achieved, and provides an alternative way to enhance the waste heat recovery and the CCHP production.

Keywords thermochemical recuperation, CCHP production, thermodynamic evaluation, operation adjustment