电器
電器
전기
CHINA APPLIANCE
2012年
z1期
249-253
,共5页
翅片管%数值研究%换热量%压降%CFD
翅片管%數值研究%換熱量%壓降%CFD
시편관%수치연구%환열량%압강%CFD
Fin-and-Tube%Numerical simulation%Heat transfer performance%Pressure drop%CFD
通过强化传热理论分析和CFD仿真设计,对7mm管单排不同片宽翅片的进行数值和实验研究。数值研究结果表明,在同等入口风速条件下,22mm宽片换热性能优于18mm宽片,空气侧压降高于18mm宽片。整机实验结果表明,26变频R3样机额定制冷、中间制冷、最大制冷、额定制热、中间制热工况下性能一致,低温制热和超低温制热22mm宽片优于18mm宽片。
通過彊化傳熱理論分析和CFD倣真設計,對7mm管單排不同片寬翅片的進行數值和實驗研究。數值研究結果錶明,在同等入口風速條件下,22mm寬片換熱性能優于18mm寬片,空氣側壓降高于18mm寬片。整機實驗結果錶明,26變頻R3樣機額定製冷、中間製冷、最大製冷、額定製熱、中間製熱工況下性能一緻,低溫製熱和超低溫製熱22mm寬片優于18mm寬片。
통과강화전열이론분석화CFD방진설계,대7mm관단배불동편관시편적진행수치화실험연구。수치연구결과표명,재동등입구풍속조건하,22mm관편환열성능우우18mm관편,공기측압강고우18mm관편。정궤실험결과표명,26변빈R3양궤액정제랭、중간제랭、최대제랭、액정제열、중간제열공황하성능일치,저온제열화초저온제열22mm관편우우18mm관편。
Based on the CFD analyses of the traditional 7mm fin-and-tube heat exchanger, a new tube heat exchanger with different row depth were simulated with CFD software. The CFD analysis results show that the air-side heat transfer performance and the air-side pressure drop of the 22mm row depth tube heat exchanger has higher than the 18mm row depth. The experimental results show that the performance of the 22mm row depth tube heat exchanger was the same as the 18mm row depth, except the performance of low temperature and cryogenic temperature.
