Development of compact heat exchanger of co2 motor vehicle air - conditioning 2汽車(chē)空調(diào)系統(tǒng)緊湊式換熱器的發(fā)展
Abstract : a mathematical model describing the effect of flow nonuniformityon the performance of compact heat exchanger is provided , which is based on that one side of heat exchanger is uniformly distributed but the other is of maldistribution . the model may be expressed in two different types , i . e . , continuous model and discrete model . the former provides a method analyzing the performance deterioration of exchanger due to flow maldistribution , and the latter provides a reference to the improvement of experimental measurement . the analyzing method obtained can be used to compute the performance deterioration of compact heat exchanger due to flow maldistribution . the result is significant to the optimization of compact heat exchanger design 文摘:以一側(cè)流體分配不均勻的換熱器模型為基礎(chǔ),建立了物流分配不均勻性對(duì)換熱器效能影響的數(shù)學(xué)模型,通過(guò)理論分析和計(jì)算,為研究換熱器內(nèi)部物流分配不均勻?qū)ζ湫艿挠绊懱峁┝艘环N分析方法.該理論模型包括連續(xù)模型和離散模型2種形式,前者為研究物流分配不均勻引起換熱器效能的下降提供了一種分析計(jì)算方法,后者為控制實(shí)驗(yàn)研究的精度提供了理論依據(jù).研究結(jié)論對(duì)換熱器的優(yōu)化設(shè)計(jì)具有重要意義