• Proceedings of the KSME Conference
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• 2004.11a
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• pp.1063-1068
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• 2004

A numerical study is performed to predict the effect of operating conditions on the thermal response of electronic assemblies during infrared reflow soldering. The multimode heat transfer within the reflow oven as well as within the electronic assembly is simulated, and the predictions illustrate the detailed thermal responses. Parametric study is performed to determine the thermal response of electronic assemblies to various conditions such as conveyor speed, exhaust velocity, and component emissivity. The predictions of the detailed electronic assembly thermal response can be used in selecting the oven operating conditions to ensure proper soldering and minimization of thermally-induced electronic assembly stresses.

• 한국연소학회:학술대회논문집
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• 2015.12a
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• pp.169-172
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• 2015

This paper presents a numerical investigation on kerosene-air mixture detonation and behaviors of thermal elasto-plstic thin metal tube under detonation loading based on multi-material analysis. The detonation loading is modeled by the kerosene-air mixture detonation which is compared with CJ condition and experimental cell size. And the thermal softening effect on elasto-plstic model of metal tube is indicated by different dynamic response of detonation loaded tube in various temperature and tube thickness.

• Proceedings of the SAREK Conference
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• 2007.11a
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• pp.635-639
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• 2007

In this study, optimal design and test of flat-plate heat pipe were carried out in order to improve both thermal response and surface temperature uniformity of heating plate. Experimental results show that the thermal response of flat-plate heat pipe is faster than that of a conventional heating type ones along with less weight and cost. The surface temperature uniformity is also improved.

• Transactions of the Korean Society of Automotive Engineers
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• v.7 no.5
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• pp.107-120
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• 1999

Catalytic converters are the most fascinating and complicated chemical reactors. They are most often operated in the transient state with respect to composition, flow rate, temperature, etc. The mathermatical model developed in this work accounts for simultaneous heat and mass transfer, chemical reaction, and multi dimensional flow characteristics to analyze the light-off performance of monolithic catalytic converter with comparable mass flow rate. To validate the mathematical model, comparison between experimental and numerical results has been performed. The numerical results show a good agreement with experimental data. It is forund that inflow rate shows major effect on the characteristics of termal response of catalytic converter.