쉘앤튜브형 열교환기 튜브의 냉각수 열유동 특성 해석
Analysis on Characteristics of Thermal Flow of Coolantin Tube of Shell and Tube-type Heat Exchanger
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The shell & tube-type heat exchanger has been frequently used because it shows simple structure, easy manufacturing and wide operation conditions among many heat exchangers. This study aims to investigate the characteristics for thermal flow of coolant and the possibility of damage for tube equipped with shell due to thermal stress. For these purposes, The thermal flow of coolant in tube was simulated using ANSYS-CFX program and thus the behaviors of coolant were evaluated with standard k-ε turbulence model. As the results, as the flow rate of coolant in tube was increased, the mean relative pressure was also increased with quadratic curve, however, as the surface temperature of tube was increased, mean temperature difference was linearly increased. Finally it showed that the damage of tube could be predicted, that is, which tube was the most weak due to thermal stress.
Abstract
The shell & tube-type heat exchanger has been frequently used because it shows simple structure, easy manufacturing and wide operation conditions among many heat exchangers. This study aims to investigate the characteristics for thermal flow of coolant and the possibility of damage for tube equipped with shell due to thermal stress. For these purposes, The thermal flow of coolant in tube was simulated using ANSYS-CFX program and thus the behaviors of coolant were evaluated with standard k-ε turbulence model. As the results, as the flow rate of coolant in tube was increased, the mean relative pressure was also increased with quadratic curve, however, as the surface temperature of tube was increased, mean temperature difference was linearly increased. Finally it showed that the damage of tube could be predicted, that is, which tube was the most weak due to thermal stress.
참고문헌 (6)
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- J. W. Lee, "Design Optimization of Dual-Shell and Tube Heat Exchanger for Exhaust Waste Heat Recovery of Gas Heat Pump", Transaction of Korean Society of Mechanical Engineers C, 3(1), pp.23~28 (2015)
- 장혜수, "발포금속을 활용한 막가습기의 특성에 관한 연구", 한국마린엔지니어링학회지, 41(7), pp.632~637 (2017), 한국마린엔지니어링학회[DOI]
- 이용기, "Shell & Tube형 열교환기의 냉각성능 개선에 관한 연구", 석사, 자동차공학, pp.2009
- Y. J. Yang, "Analysis on Mutual Operation Characteristics between Heat Exchanger Simulator and Shell and Tube-type Heat Exchanger", Journal of Energy Engineering