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Technology of Waste Heat Recovery Using Heat Pipe Heat Exchanger for Industrial Practice  

Lee Young-Soo (Unutilized Energy Research Center, Korea Institute of Energy Research (KIER))
Kim Jong-Ryul (Unutilized Energy Research Center, Korea Institute of Energy Research (KIER))
Chang Ki-Chang (Unutilized Energy Research Center, Korea Institute of Energy Research (KIER))
Baik Young-Jin (Unutilized Energy Research Center, Korea Institute of Energy Research (KIER))
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.16, no.11, 2004 , pp. 1044-1050 More about this Journal
Abstract
The present study has been conducted to develop a heat pipe heat exchanger for middle-high temperature ranged from 300 to $600^{\circ}C$. Heat transfer rate, overall heat transfer coefficient and temperature effectiveness were investigated using a heat pipe heat exchanger with Dowtherm A as working fluid. Theoretical analysis was also conducted, and the followings were obtained: (1) Heat exchange rate increased as waste gas temperature supplied to evaporator and frontal velocity in condenser increased, (2) Overall heat transfer coefficient increased by $3{\sim}7\%$ as frontal velocity in evaporator and condenser increased, (3) Temperature effectiveness was about $30\%$ in evaporator and was about $40\%$ in condenser, (4) Heat recovery rate was about $38\%$, (5) Pressure drop did not exceed $8\;mmH_{2}O$ under the running condition of $1{\sim}3Nm/s$, (6) Simulation results were corresponded with experimental results.
Keywords
Heat recovery; Heat exchanger; Heat pipe; Heat transfer rate; Overall heat transfer coefficient; Temperature effectiveness;
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  • Reference
1 Lee, Y. S. and Jang, Y. S., 1990, A study on the characteristics of heat exchanger using heat pipe for various working condition, Journal of Air-Conditioning and Refrigeration Engineering, SAREK, Vol. 2, No.3, pp.155-165
2 Perety, R. and Horbanic, B., 1984, Optimal heat pipe heat exchanger design, Journal of Heat Recovery System, Vol. 4, No.1, pp.924
3 Azad, E. and Moztarzadeh, F., 1985, Design of air-to-water co-axial heat pipe heat exchanger,Journal of Heat Recovery System,Vol. 5, No.3, pp.217-224
4 Japan Association of Heat Pipe, 1985, Practical Heat Pipe, p. 78
5 Lee, Y. S., 1992, For air-conditioning heat exchanger using heat pipe, Air-Conditioning and Refrigeration Engineering, SAREK, Vol.21, No.5, pp.423-438
6 Cho, M. J, Lee, K. W., Chang, K. C., Woo, J,S. and Ra, H. S., 1990, Development of the high efficiency heat exchanger using heat pipes, Report of KlER, pp. 56-62