Antun Galovic¹, Zdravko Virag² and Marija Zivic³

^1,2University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, I. Lucica 5, 10000 Zagreb, Croatia.
³University of Osijek, Mechanical Engineering Faculty, Trg I. B. Mazuranic 18, 35000 Slavonski Brod, Croatia.
E-mail: ¹ [email protected]; ² [email protected]; ³ [email protected]

Received: 22 July 2003 / Accepted: 28 November 2003 / Published: 31 December 2003

Abstract: The analytical solutions for the temperature variation of two streams in parallel flow, counter flow and cross-flow heat exchangers and related entropy generation due to heat exchange between the streams are presented. The analysis of limiting cases for the relative entropy generation is performed, and corresponding analytical expressions are given. The obtained results may be included in a more general procedure concerning optimal heat exchanger design.

Keywords: recuperative heat exchangers; relative entropy generation; analytical solution.