HEAT TRANSFER PERFORMANCE OF AN OIL JET IMPINGING ON A DOWNWARD-FACING STAINLESS STEEL PLATE

Abstract

An experimental study is carried out for the quenching of a stainless steel plate using a single oil jet impinging on the bottom surface of the plate. The objective of this study is to investigate the effect of the oil jet flow operating conditions onto the heat transfer effectiveness when the plate is heated to temperatures ranging from around 115 to 630 oC, and the oil is heated to temperatures ranging from 60 to 75 oC. Tests are conducted on the oil at various temperatures to determine its viscosity. Experiments are conducted for nozzle exit flow rates ranging from 113 to 381 ml/min, oil jet pressures from 3.1 to 12 psi, and nozzle-to-plate surface distances of 0.6 and 1 cm. The variation of the oil heat flux and heat transfer coefficient with the surface temperature for the different quenching parameters is calculated from the acquired temperature data. Tests results show the oil heat transfer effectiveness keeps increasing for increasing plate temperature. Oil jet pressure is shown to have a considerable effect on the oil heat transfer, while the nozzle-to-plate surface distance is shown to have a lesser effect. The results of this study shall lead to a better understanding of the parameters that play an important role in oil quenching for applications that are of interest to the metal process industry.

Keywords

Dates

  • Submission Date2009-04-06
  • Revision Date2010-04-05
  • Acceptance Date2011-01-06

DOI Reference

10.2298/TSCI090406011I

References

  1. Incropera, F. P., and DeWitt, D. P., Fundamentals of Heat and Mass Transfer, John Wiley & Sons, New York, USA, 1985 16
  2. Pais, M. R., and Chow, L. C., Multiple Jet Impingement Cooling, Journal of Thermophysics and Heat Transfer, 7 (1993), 3, pp. 435-440
  3. Lamvik, M., and Iden, B.A., Heat transfer coefficient by water jets impinging on a hot surface, Seventh International Heat Transfer Conference, Munich, FRG, September 6-10, 1982
  4. Ishigai, S., Nakanishi, A., and Ochi, T., Boiling heat transfer for a plane water jet impinging on a hot surface, 6th International Heat Transfer Conference, Toronto, Canada, 1978, pp. 601-610
  5. Issa, R., and Yao, S. C., A Numerical Model for Spray-Wall Impactions and Heat Transfer at Atmospheric Conditions, Journal of Thermophysics and Heat Transfer, 19 (2005), 4, pp. 441-447
  6. Issa, R. J., Optimal Spray Characteristics in the Air-Assisted Water Spray Cooling of a Downward-Facing Heated Surface, 24th ASM International Heat Treating Society Conference, Detroit, Michigan, 2007
  7. Chen, N., Han, L., Zhang, W., and Hao, X., Enhancing mechanical properties and avoiding cracks by simulation of quenching connecting rods, Materials Letters, 61 (2007), pp. 3021-3024
  8. Abou-Ziyan, H. Z., Heat transfer characteristics of some oils used for engine cooling, Energy Conversion and Management, 45 (2004), pp. 2553-2569
  9. Prabhu, K. N., and Fernandes, P., Effect of surface roughness on metal/quenchant interfacial heat transfer and evolution of microstructure, Materials and Design, 28 (2007), pp. 544-550
  10. Fernandes, P., and Prabhu, K. N., Effect of section size and agitation on heat transfer during quenching of AISI 1040 steel, Journal of Materials Processing Technology, 183 (2007), pp. 1-5
  11. De Paepe, M., Bogaert, W., and Mertens, D., Cooling of oil injected screw compressors by oil atomization, Applied Thermal Engineering, 25 (2005), pp. 2764-2779
  12. Ma, C.F., Zheng, Q., Sun, H., Wu, K., Gomi, T., and Webb, B.W., Local characteristics of impingement heat transfer with oblique round free-surface jets of large Prandtl number liquid, Int. J. Heat Mass Transfer, 40 (1997), 10, pp. 2249-2259
  13. Akbarpour, M. R., High temperature mechanical properties of triple phase steels, Materials Letters, 61 (2007), pp. 1023-1026
  14. Zhukauskas, A. A., and Ambrazyavichyus, A. B., Heat transfer of a plate in a liquid flow, Int. J. Heat Mass Transfer, 3 (1961), pp. 305-309
  15. Macosko, C.W., Rheology Principles, Measurement, and Applications, Wiley-VCH, Inc., New York, USA, 1994
Volume 15, Issue 2, Pages397 -408