Proceedings of the
International Conference on Mechanical Engineering 2009
(ICME2009) 26- 28 December 2009, Dhaka, Bangladesh

ICME09-TH-31

CARBON STEEL QUENCHING AND MAXIMUM HEAT FLUX
WITH WATER JET IMPINGEMENT

A. K. Mozumder1, M. Ahmed1 and M. Monde2
1Dept. of Mechanical Engineering. Bangladesh University of Engg. & Tech. Dhaka, Bangladesh
2Dept. of Mechanical Engineering, Saga University, Saga, Japan

ABSTRACT

An experimental investigation of jet impingement quenching has been performed for three different block materials copper, brass and steel with jet velocities of 3-15 m/s, jet subcoolings of 5-80K and initial block temperatures of 250-600 ºC. The present study has focused to investigate the characteristics of quenching for carbon steel only. The effect of experimental parameters on the maximum heat flux (the maximum value of heat flux from the solid and carried out by the liquid) was investigated in the present study. The value of maximum heat flux increases with the jet velocity and also with liquid subcooling. The maximum heat flux is also found to be almost independent of block initial temperature. A correlation of maximum heat flux for carbon steel together with the dominating parameters is proposed here which well agrees with the experimental data.

Keywords: Quenching, Jet Impingement, Heat Flux

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