Title: Thermo-economic analysis of heat pipe heat exchanger for waste heat recovery in thermal systems

Authors: Shanmuga Sundaram Anandan; Anirudh Bhaskaran

Addresses: Department of Mechanical Engineering, Rajalakshmi Institute of Technology, Chennai 600124, India ' Department of Mechanical Engineering, Rajalakshmi Institute of Technology, Chennai 600124, India

Abstract: Thermo-economic analysis of Heat Pipe Heat Exchanger (HPHE) for waste heat recovery in thermal systems using the P1-P2 and NTU methods is presented. The optimum effectiveness of a HPHE is given as a polynomial equation, whereas the net savings and payback period are given in closed form to enable the HPHE designer to determine the optimised values directly. In addition to this, exergy analysis of HPHE for waste heat recovery in thermal systems is formulated. The variation of exergy efficiency with respect to change in inlet temperature is also presented.

Keywords: HPHE; heat pipe heat exchangers; thermoeconomics; P1-P2 method; optimisation; waste heat recovery; effectiveness; exergy analysis; thermal systems; exergy efficiency; inlet temperature.

DOI: 10.1504/IJEX.2012.049092

International Journal of Exergy, 2012 Vol.11 No.1, pp.35 - 51

Received: 10 Oct 2011
Accepted: 10 Mar 2012
Published online: 13 Sep 2012 *

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