TY - GEN
T1 - A method for the evaluation of heat transfer coefficient by optimization algorithm
AU - Kim, Jeong Tae
AU - Lim, Chae Ho
AU - Choi, Jeong Kil
AU - Lee, Young Kook
PY - 2007/1/1
Y1 - 2007/1/1
N2 - New method for evaluation of heat transfer coefficient is proposed. In general, many researchers have been studied about inverse problem in order to calculate the heat transfer coefficient on three-dimensional heat conduction problem. But they can get the time-dependent heat transfer coefficient only through inverse problem. In order to acquire temperature-dependent heat transfer coefficient, it requires much time for numerous repetitive calculation and inconvenient manual modification. In order to solve these problems, we are using the SQP(Sequential Quadratic Programming) as an optimization algorithm. When the temperature history is given by experiment, the optimization algorithm can evaluate the temperature-dependent heat transfer coefficient with automatic repetitive calculation until difference between calculated temperature history and experimental ones is minimized. Finally, temperature-dependent heat transfer coefficient evaluated by developed program can used on the real heat treatment process of casting product.
AB - New method for evaluation of heat transfer coefficient is proposed. In general, many researchers have been studied about inverse problem in order to calculate the heat transfer coefficient on three-dimensional heat conduction problem. But they can get the time-dependent heat transfer coefficient only through inverse problem. In order to acquire temperature-dependent heat transfer coefficient, it requires much time for numerous repetitive calculation and inconvenient manual modification. In order to solve these problems, we are using the SQP(Sequential Quadratic Programming) as an optimization algorithm. When the temperature history is given by experiment, the optimization algorithm can evaluate the temperature-dependent heat transfer coefficient with automatic repetitive calculation until difference between calculated temperature history and experimental ones is minimized. Finally, temperature-dependent heat transfer coefficient evaluated by developed program can used on the real heat treatment process of casting product.
UR - http://www.scopus.com/inward/record.url?scp=38549151917&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38549151917&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:38549151917
SN - 3908451310
SN - 9783908451310
T3 - Solid State Phenomena
SP - 1637
EP - 1640
BT - Advances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia
PB - Trans Tech Publications Ltd
T2 - IUMRS International Conference in Asia 2006, IUMRS-ICA 2006
Y2 - 10 September 2006 through 14 September 2006
ER -