Performance Assessment and Optimization of a Combined Cooling, Heating and Power (CCHP) System for Residential Application Using Low Grade Heat of an Internal Combustion Engine | Bentham Science

摘要

Background: This research paper mainly deals with a comprehensive thermodynamicmodeling and thermoeconomic analysis and optimization of a CCHP system. This integrated CCHPsystem consists of a topping cycle, an internal combustion engine (ICE), to produce electricity and abottoming cycle to utilize the wasted heat of exhaust gases by means of an organic Rankine cycle(ORC), an ejector refrigeration cycle (ERC), and a domestic hot water (DHW).Methods: A comprehensive thermodynamic assessment is carried out to determine the effect of majorparameters on the performance of the system in terms of exergy efficiency and total cost rate. The totalcost rate includes the purchase equipment cost, the fuel cost, and the environmental impact damagecost. Finally, a multi objective optimization is applied to maximize the exergy efficiency and tominimize the total cost rate of the system while satisfying some practical constraints.Results: As a result, the Pareto frontier is obtained from our developed multi-objective optimizationcode for the decision and energy policy makers in order to have better insights to design a system forsustainable future.