CAJ | 학술논문

采用分布参数法建立水平管降膜蒸发器管束换热模型，模拟计算了水平管降膜蒸发器不同管程布置下换热管干斑分布和平均降膜因子，并进行比较分析；并在下进上出的管程布置形式下研究了制冷剂流量、管间距、满液区排管数对蒸发器换热性能的影响。本文的研究为水平管降膜蒸发器的设计提供理论指导，促进其在制冷空调领域的推广应用。
채용분포삼수법건립수평관강막증발기관속환열모형，모의계산료수평관강막증발기불동관정포치하환열관간반분포화평균강막인자，병진행비교분석；병재하진상출적관정포치형식하연구료제랭제류량、관간거、만액구배관수대증발기환열성능적영향。본문적연구위수평관강막증발기적설계제공이론지도，촉진기재제랭공조영역적추엄응용。
A theoretical thermodynamic model with distributed parameters was developed for simulating the falling film heat transfer performance,and in this model the effect of film breakdown (or dry patch)is considered.In this simulation ,the distribu-tion of dry patch,average falling film factor is obtained,and the effect of the tube bundle layout,refrigerant mass flow rate,tube pitch,the flooded tube row amount is also analyzed.This study is a contribution for the design of horizontal falling film evaporators and promote their application in the field of refrigeration and air conditioning.