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

Author: Anandan Shanmuga Sundaram   Bhaskaran Anirudh  

Publisher: Inderscience Publishers

ISSN: 1742-8297

Source: International Journal of Exergy, Vol.11, Iss.1, 2012-09, pp. : 35-51

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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.