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首页> 外文期刊>International Journal of Heat Exchangers >Thermohydraulic Efficiency of Heat Exchangers with Flow Swirling by Helical Tubes
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Thermohydraulic Efficiency of Heat Exchangers with Flow Swirling by Helical Tubes

机译：螺旋管内旋流换热器的热工效率

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For estimation of thermohydraulic efficiency of heat exchangers with twisted tubes the method named as "Method of effective parameters" is used by means of effective Reynolds number introduction and condition of effective Reynolds numbers equality by comparison with different heat transfer surfaces of another heat exchangers. In this paper the results of experimental investigations and theoretical analysis of heat transfer and hydraulic drag for water flow in different channels are presented. Experimental studies are carred out by the method of heat exchanger of "Tube in Tube" type. Criterion dependecies of heat transfer and hydraulic drag are searched in power form for different types of channels with enhancement of heat transfer. The regions of effective Reynolds number variation where one type of heat transfer surface has preference over others are determined.
机译：为了估计双绞管换热器的热工效率，通过与其他换热器的不同传热面进行比较，通过引入有效的雷诺数和有效的雷诺数相等的条件，使用了被称为“有效参数方法”的方法。本文介绍了不同通道水流的传热和水力阻力的实验研究结果和理论分析。通过“管式”热交换器的方法进行了实验研究。以功率形式搜索传热和水力阻力的准则依赖性，以提高传热的能力，以用于不同类型的通道。确定有效雷诺数变化的区域，其中一种传热表面优先于其他传热表面。

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