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

Y1 - 2007

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

U2 - 10.4028/3-908451-31-0.1637

DO - 10.4028/3-908451-31-0.1637

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 -