Experimental Study on Heat Transfer of Pressurized Spray Cooling on the Heated Plate by Using 45° Full Cone Nozzles

Peng Jiang; Qian Wang; I. Sabariman; Eckehard Specht

doi:10.4028/www.scientific.net/AMM.535.32

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 535Experimental Study on Heat Transfer of Pressurized...

Experimental Study on Heat Transfer of Pressurized Spray Cooling on the Heated Plate by Using 45° Full Cone Nozzles

Abstract:

Water spray cooling is widely used in many industrial processes to control heat removal from a hot material surface. In this work, pressurized spray nozzle was applied to break film boiling immediately once the quenching process is started. For this purpose, a circular disc made of non-ferrous metals is heated to approximately 850 °C and sprayed on one side by hydraulic nozzle and the temperature distribution with respect to time and space is measured by using Infrared camera. On the other side, the measured surface was coated with graphite paint in order to achieve a high emissivity. By this IR thermography, transient temperature measurement can be carried out within the window of 320 × 80 pixels. The heat transfer was analyzed through 1D method. In this method, the temperature difference between both sides neglected. The local heat transfer can then be calculated from a simple differential energy balance.

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Periodical:

Applied Mechanics and Materials (Volume 535)

Pages:

32-36

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.535.32

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Online since:

February 2014

Authors:

Peng Jiang, Qian Wang, I. Sabariman, Eckehard Specht

Keywords:

Impingement Density, Leidenfrost Temperature, Quenching, Spray Cooling

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