Wentao Li, Kun Sun, Guoyan ZHOU, Xing Luo, Shan-Tung Tu, Stephan Kabelac, Ke Wang
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引用次数: 0
Abstract
For measuring the efficiency of non-metallic heat exchangers, a mathematical model was established based on the principle of the single-blow testing technique, in which the conductive thermal resistance across non-metallic plates of the exchangers was taken into account. The analytical solution was obtained by means of the Laplace transformation and numerical invers transform method. The accuracy of the model was verified by comparing it with the literature. The effect of the plate Bi number on the evaluated NTU was analyzed. Based on the single-blow transient testing technique and the present model, the heat transfer performance and frictional pressure drop of four types of non-metallic plates with different structural parameters were experimentally studied. The correlations for heat transfer and frictional pressure drop of non-metallic heat exchange structures are established.
期刊介绍:
The Journal of Enhanced Heat Transfer will consider a wide range of scholarly papers related to the subject of "enhanced heat and mass transfer" in natural and forced convection of liquids and gases, boiling, condensation, radiative heat transfer.
Areas of interest include:
■Specially configured surface geometries, electric or magnetic fields, and fluid additives - all aimed at enhancing heat transfer rates. Papers may include theoretical modeling, experimental techniques, experimental data, and/or application of enhanced heat transfer technology.
■The general topic of "high performance" heat transfer concepts or systems is also encouraged.