Performance investigation of plain and finned tube evaporatively cooled heat exchangers
نویسندگان
چکیده
منابع مشابه
Performance investigation of plain circular and oval tube evaporatively cooled heat exchangers
The performance of two evaporatively cooled heat exchangers is analysed, one has plain circular tubes while the other one has plain oval tubes. Both are investigated under similar operating conditions in relation to airflow rates and inlet hot water temperatures. The circular tube is 10 mm o.d., and the oval tube (axes ratio 3.085) is formed from an 18 mm o.d. circular tube whose perimeter is p...
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In this paper, first the governing parameters characterizing low-finned tubes are reviewed. Second, the more important of the available performance correlations are compared with the available experimental data. The most reliable one can be employed to develop a pressure drop relationship, which has already been used in an algorithm for exchanger sizing. Also a means for the identification of a...
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Heat exchangers are the most important equipment in refrigeration processes. Design and modeling of heat exchangers operating at low temperatures are different from other regular heat exchangers. This study includes two sections. In the first section, design and modeling considerations needed for evaluating the real thermal behavior of heat exchangers at low temperatures were discussed. The...
متن کاملFriction Loss and Heat Transfer Coefficient in Finned Tube Heat Exchangers for Reheating Massecuites
Equations developed for packed columns may be used to predict the overall heat transfer coefficient and friction loss in massecuite reheaters. The results seem to indicate that exchangers with the tubes staggered give higher heat transfer rates than those with the tubes in line.
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ژورنال
عنوان ژورنال: Applied Thermal Engineering
سال: 2003
ISSN: 1359-4311
DOI: 10.1016/s1359-4311(02)00194-1