Author(s)

M.A. Mehrabian, M. Hemmat

Abstract

The overall heat transfer characteristics of a double pipe heat exchanger: comparison of experimental data with predictions of standard correlations M. A. Mehrabian, M. Hemmat Department of Mechanical Engineering, Shahid Bahonar University of Kerman, Iran Abstract The single phase flow and thermal performance of a double pipe heat exchanger are examined by experimental methods. The working fluid is water at atmospheric pressure. Temperature measurements at the inlet and outlet of the two streams and also at an intermediate point half way between the inlet and outlet are made. Heat is supplied to the inner tube stream by an immersion heater. The overall heat transfer coefficients are inferred from the measured data. The heat transfer coefficient of the inner tube flow (circular cross section) is calculated using the standard correlations. The heat transfer coefficient of the outer tube flow (annular cross section) is then deduced. 1 Introduction Double pipe heat exchangers ar

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