摘要
将一种以热力学第二定律为基础的熵产分析方法应用于飞机环境控制系统的部件级优化设计.通过分析空气在环控系统中的流动过程,得出系统熵产与给定初始条件的函数关系,结合热交换器设计计算过程,得到当引气压力和座舱设计温度变化时热交换器热边流动长度、冷边流动长度和高度之间的比例关系对整个系统熵产的影响.
An entropy generation analysis method based on the second law of thermodynamics is applied to component level optimization design of aircraft environmental control system.The function relationship between system entropy generation and is given initial conditions is achieved through analyzing the air flow process in environmental control system. Along with the heat exchanger design computation process,as the bleed air pressure and cabin design temperature change, the effects of the ratio between heat exchanger heat side flow length and cold side flow length,and the ratio between heat exchanger height and cold side flow length on whole system entropy generation are obtained.
出处
《信息与控制》
CSCD
北大核心
2011年第1期73-77,共5页
Information and Control
