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Prediction of heat transfer coefficient during condensation of water and R134a on single horizontal integral-fin tubes.

Author(s) : KUMAR R., VARMA H. K., MOHANTY B., et al.

Type of article: Article, IJR article

Summary

This paper presents a few salient features of an investigation carried out to study the heat transfer augmentation during condensation of water and R134a vapor on horizontal integral-fin tubes. The experimental investigation was performed on two different experimental set-ups for water and R134a. The test-sections were manufactured by machining fins over plain copper tubes of 24.4 plus or minus 0.6 mm outside diameter. The performance of two types of finned tubes viz. circular integral-fin tubes (CIFTs) and spine integral-fin tubes (SIFTs) was studied for the condensation of water and R134a. These tubes were positioned one by one inside the test-condenser to perform the experiments. All experimental results, authors have developed an empirical equation. This equation predicts the condensing heat transfer coefficient from their own experimental data for the condensation over CIFTs and SIFTs within a range of plus or minus 15% and experimental data of other thirteen investigators in a range of plus or minus 35% for condensation of water and different refrigerants.

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Pages: 111-126

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Details

  • Original title: Prediction of heat transfer coefficient during condensation of water and R134a on single horizontal integral-fin tubes.
  • Record ID : 2002-1263
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 25 - n. 1
  • Publication date: 2002/01

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