Examinations of steady status and analysis of dynamic experiments have been conducted on band - tube evaporator and parallel - flow condenser using r134a refrigerant . the steady examination show that the model error was under the allowable error , the inlet mass and enthalpy disturb experiments indicate that the subsection model , be good at reflecting the change of parameters of the heat exchanger , accord with the basic principle of thermodynamics theory and the actual work status . hence , the subsection simulation model research has important benefits both on theory and engineering application 在進行仿真試驗時,以使用r134a作制冷劑的管帶式蒸發(fā)器和平行流式冷凝器為對象,完成了穩(wěn)態(tài)仿真計算、試驗和動態(tài)仿真分析,穩(wěn)態(tài)計算結果和試驗數(shù)據(jù)對比表明,其誤差在允許范圍內(nèi);進口質(zhì)量和焓值的擾動試驗結果表明:本文所建的區(qū)段式換熱器仿真模型,能很好的反映換熱器性能參數(shù)的動態(tài)變化,與系統(tǒng)熱動力學理論和冷凝器、蒸發(fā)器的實際工作過程基本一致。