Essay写作—复合内翅片的实验研究与性能试验
12页1、Essay写作复合内翅片的实验研究与性能试验Experimental Study and Performance Test of Composite Internal FinsAbstractHeat transfer performance for both brass and composite(Al+SiC)finned of brass pipe has been investigated experimentally.The composite finned tube was designed,fabricated and installed and was heated electrically.The same was done for a brass finned tube in order to make comparison.Heat transfer coefficient for composite finned tube is about 1.09 to 1.11 times higher than that of brass finned tube.High
2、er thermal conductivity of composite material is responsible for this heat transfer enhancement.The composite finned tube in this study produces significant heat transfer enhancement at the same Reynolds number than that of brass finned tube.Keywords:Heat transfer,composite fin,thermal conductivity.1.IntroductionInternal fins are used in phase change material storages(PCM).PCM are used to balance the temporary temperature alteration and to store energy in several practical fields like automobile
3、 industries.The rate of heat transfer from fluid flowing through the micro channels can be greatly enhanced by use of internal fins.T.Kanthimathi1focused on the study of the radial composite fins to increase the heat transfer rate in many applications.Y.Pratapa Reddy2made to fabricate circular pin fin made of different metals,Aluminium,Copper,combination of Aluminium and Copper and combination of Brass and Copper as composite bars and analyzed their performance in terms of fin efficiency,heat tr
4、ansfer rate and temperature distribution along the fin.Jiang3measured the performance of conventional silica gel coated heat exchanger(SGCHE),a novel composite silica gel coated heat exchanger(CCHE)was proposed and fabricated.Wu Xuehong4investigated the performance of air-side heat transfer and fluid flow by numerical simulation for Reynolds number ranging from Re=304 to 2130.The objective of the research is to study the effect of composite internal longitudinal fins in a circular tube on heat t
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Essay写作—复合内翅片的实验研究与性能试验
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