Dehumidification: Prediction of Condensate Flow Rate for Plate-Fin Tube Heat Exchangers Using the Latent j Factor

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Condensate flow rate is an important factor in designing dehumidifiers or evaporators. In this paper, the latentj fimtor is used to analyze the dehumidification performance of two plate-fin tube heat exchangers. This latent j factor, analogous to the total j factor, is a flmction of the mass transfa coefllcient, the volumetric air flow rate, and the Schmidt number. This latent j factor did predict condensate flow rate more directly and accurately than any other sensiblej factor method. The Iatentj factor has been used in the present study because the sensible j factor correlations presented in the literature failed to predict ... continued below

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9 Pages

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Baxter, V.D.; Chen, D.T. & Conklin, J.C. March 15, 1999.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 54 times , with 11 in the last month . More information about this article can be viewed below.

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Description

Condensate flow rate is an important factor in designing dehumidifiers or evaporators. In this paper, the latentj fimtor is used to analyze the dehumidification performance of two plate-fin tube heat exchangers. This latent j factor, analogous to the total j factor, is a flmction of the mass transfa coefllcient, the volumetric air flow rate, and the Schmidt number. This latent j factor did predict condensate flow rate more directly and accurately than any other sensiblej factor method. The Iatentj factor has been used in the present study because the sensible j factor correlations presented in the literature failed to predict the condensate flow rate at high Reynolds numbers. Results show that the latent j i%ctor em be simply correlated as a fhnction of the Reynolds number based on the tube outside diameter and number of rows of the heat exchanger.

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9 Pages

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  • ASME/JSME Joint Thermal Engineering Conference, San Diego, CA, Mar. 15, 1999

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  • Other: DE00002962
  • Report No.: ORNL/CP-100589
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 2962
  • Archival Resource Key: ark:/67531/metadc678354

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  • March 15, 1999

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  • July 25, 2015, 2:20 a.m.

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  • Nov. 4, 2015, 1:56 p.m.

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Baxter, V.D.; Chen, D.T. & Conklin, J.C. Dehumidification: Prediction of Condensate Flow Rate for Plate-Fin Tube Heat Exchangers Using the Latent j Factor, article, March 15, 1999; United States. (digital.library.unt.edu/ark:/67531/metadc678354/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.