CO2跨临界并行循环两级压缩制冷系统模拟研究

Performance Simulation of CO2 Trancritical Booster System with Parallel Compression

由于二氧化碳用于跨临界循环时,其系统能效偏低。本文对带有并行压缩循环的跨临界二氧化碳两级压缩制冷系统进行理论分析,研究气冷器出口温度、冷却压力和泄压罐压力对系统效率的影响,找出最优参数值,为并行压缩的跨临界二氧化碳制冷系统的设计应用提供参考。

Since carbon dioxide is used in a transcritical cycle, its system energy efficiency is low. In this paper, the theoretical analysis of the transcritical CO2 two-stage compression refrigeration system with parallel compression cycle is carried out to study the influence of the air cooler outlet temperature, cooling pressure and pressure relief tank pressure on the system efficiency, and find the optimal parameter value. The system is reasonably referenced in practical design applications.