Simulation Study On Distributed Co-supply System Of Cool Heat And Power Of Modern Ecological Agriculture Park

Based on the energy supply and demand relationship of modern ecological agriculture park,this paper constructs a distributed co-supply system of cool,heat and power system(CCHP)driven by biogas power generation and aerobic fermentation waste heat through the Aspen Plus process simulation platform,the performance of the CCHP is simulated and optimized to explore the f-easibility building a CCHP system in the agricultural park.This article main working is as followsFirstly,the development and application status of CCHP system,biogas power generation and the heat recovery of biogas power generation,aerobic fermentation and the heat recovery are described.Taking an ecological agriculture demonstration park in Nanning as the research object,the potential energy supply and demand ot the ecological agriculture park are analyzed and calculated,and a CCHP system driven by biogas power generation and aerobic fermentation waste heat is proposedSecondly,the CCHP driven by biogas power generation and aerobic fermentation xwaste heat is designed according to the principle of"Ordering Power by Heat".Based on the Aspen Plus simulation platform,four simulation processes of biogas power generation system,flue gas double-effect lithium bromide absorption refrigeration system,single-stage ammonia water absorption refrigeration system and flue gas/exhaust gas-water heat exchanger system were constructed,and the Performance of those system are simulatedThirdly,the influences of key parameters of each unit system of the CCHP on system performance are analyzed.According to the results of simulation analysis,the system is improved and optimized accordingly,and the main equipment of the CCHP is selectedFinally,the CCHP is evaluated synthetically by the comprehensive performance,environmental benefits and economic benefits.The analysis results show that the CCHP based on modern eco-agriculture park is feasible in energy conservation,environmental protection and economy,and has promotion and application value.