March 2013 Vol. 1 Issue 1 

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Full Length Research Paper

Effects of mass flow rate in terms of pressure drop and
heat transfer characteristics

Masoud Asadi^1* and Dr Ramin Haghighi Khoshkhoo²

¹Department of Mechanical Engineering, Azad Islamic University Science and Research branch, Tehran, Iran,
²Department of Mechanical Engineering and Energy engineering, Power and Water University of Technology, Tehran, Iran

*Corresponding    Author   E-mail:  masoud2471@gmail.com

Accepted February 17, 2013

Abstract

This study present a study on pressure drop and mass flow rate based on changing mass flow rate in a plate-fin heat exchanger with Wavy fin. Thermo-hydraulic design of compact heat exchangers is strongly dependent upon the mass flow rate value. It has direct impact on pressure drop , Reynolds number ,convective coefficient , overall heat transfer coefficient and heat exchanger efficiency. Hence, optimal mass flow rate, is one of the key notes to design a heat exchanger. As we expected, both pressure drop and convective coefficient increase with growing mass flow rate. However, the optimal mass flow rate is also strongly dependent on the heat exchanger dimensions.

Keywords: Mass flow rate, Plate-fin heat exchanger, Wavy fin