Author:
Sriwiga Soonthorn,Munsin Ronnachart,Watcharadumrongsak Thanawat,Wongpanich Somkiat,Kraitong Kwanchai,Lapirattanakun Arwut,Wannachai Autanan,Promdan Surapin,Panananda Nuttarut,Yeunyongkul Pracha
Abstract
This study aims to design the optimum heat pipe heat exchanger (HPHE) to recover heat from flue gas of boiler for increasing the temperature of feed water. The optimum thermosyphon heat exchanger sizing was simulated on the basis of thermo-economical method and simulation program was construct by using the MATLAB 2021b. The program was simulated by input physical parameters of the thermosyphon and heat exchanger and the thermoeconomic parameters. It was found that R134a was chosen as the working fluid of this study. In addition, the optimum of number of tubes, heat transfer rate and the optimized effectiveness of HPHE were 87 tubes, 4,873 W and 0.237, respectively. Moreover, the net saving and payback period of this HPHE were 14,865 USD and 310 days, respectively.
Publisher
Ho Chi Minh City University of Technology and Education
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