热力发电
熱力髮電
열력발전
THERMAL POWER GENERATION
2015年
1期
34-38
,共5页
换热器%非对称翅片管%对流传热%换热系数%强化换热%换热效果
換熱器%非對稱翅片管%對流傳熱%換熱繫數%彊化換熱%換熱效果
환열기%비대칭시편관%대류전열%환열계수%강화환열%환열효과
heat transfer%asymmetrical finned tube%convective heat transfer%heat transfer coefficient%heat transfer enhancement%heat transfer effect
提出一种新型非对称翅片管式换热器，通过不同工况的实验，研究其传热过程和传热效果，并通过计算传热系数比较其与环状翅片管管束和光管管束的传热性能。结果表明：非对称翅片管对流体的扰动强于环状翅片管和光管；相同参数条件下，非对称翅片管换热器的换热效果优于环状翅片管和光管式换热器；采取相同面积的换热面，非对称翅片管换热器比环状翅片管换热器更加紧凑。
提齣一種新型非對稱翅片管式換熱器，通過不同工況的實驗，研究其傳熱過程和傳熱效果，併通過計算傳熱繫數比較其與環狀翅片管管束和光管管束的傳熱性能。結果錶明：非對稱翅片管對流體的擾動彊于環狀翅片管和光管；相同參數條件下，非對稱翅片管換熱器的換熱效果優于環狀翅片管和光管式換熱器；採取相同麵積的換熱麵，非對稱翅片管換熱器比環狀翅片管換熱器更加緊湊。
제출일충신형비대칭시편관식환열기，통과불동공황적실험，연구기전열과정화전열효과，병통과계산전열계수비교기여배상시편관관속화광관관속적전열성능。결과표명：비대칭시편관대류체적우동강우배상시편관화광관；상동삼수조건하，비대칭시편관환열기적환열효과우우배상시편관화광관식환열기；채취상동면적적환열면，비대칭시편관환열기비배상시편관환열기경가긴주。
A new kind of asymmetrical finned tube heat exchanger was designed.The heat transfer process and effect of the asymmetrical finned tube were experimentally studied under four working conditions.Mo-reover,its heat transfer performance was compared with that of the ring-fin tube and smooth tube,through the heat transfer coefficient calculation.The results show that,this asymmetrical finned tube does stronger disturbance to the flow than the ring-fin tube and smooth tube,it has better heat transfer effect than the other two tubes,and with the same heating surface area,it is more compact than the ring-fin tube.
