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An Improved Two-Phase Pressure Drop Correlation for 180 degrees Return Bends

Published

Author(s)

Piotr A. Domanski, Christian Hermes

Abstract

A new correlation for two-phase flow pressure drop in 180? return bends is proposed based on a total of 241 experimental data points for R-22 and R-410A. The data span smooth tubes with inner diameters (D) from 3.25 mm to 11.63 mm, bend radiuses (R) from 6.35 mm to 37.25 mm, and curvature ratios (2R/D) from 2.32 to 8.15. The correlation predicts all data with a mean deviation of 15.7 %, and 75 % of the data fall within 25 % error bands.
Proceedings Title
Asian Conference on Refrigeration and Air Conditioning 2006 | 3rd | | The Society of Air-conditioning and Refrigerating Engineers of Korea (SAREK)
Conference Dates
May 21-23, 2006
Conference Location
Gyeongju, KO
Conference Title
Asian Conference on Refrigeration and Air Conditioning (ACRA 2006)

Keywords

air conditioning, heat exchangers, pressure drop, refrigeration, return bends, two phase

Citation

Domanski, P. and Hermes, C. (2006), An Improved Two-Phase Pressure Drop Correlation for 180 degrees Return Bends, Asian Conference on Refrigeration and Air Conditioning 2006 | 3rd | | The Society of Air-conditioning and Refrigerating Engineers of Korea (SAREK), Gyeongju, KO, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=861004 (Accessed July 19, 2024)

Issues

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Created May 1, 2006, Updated February 19, 2017