Boiling Heat Transfer of Multiple Impinging Jets on a Hot Moving Plate

Abstract

In this research, boiling heat transfer on a hot moving plate caused by multiple impinging water jets in multiple jet rows is studied. An inverse heat conduction code is developed to analyze the readings of thermocouples that are implemented inside the plate in order to find the surface values of temperature and heat flux. Effects of nozzle stagger, plate velocity, and jet line spacing are studied. Nozzle stagger is found to affect the uniformity of heat transfer across the width of the plate. Jet line spacing can affect the heat transfer between two adjacent jet rows. Plate speed is important only in the higher entry temperatures and in the impingement zone.

Acknowledgments

The authors express their appreciation to Mr. G. Franco for his experimental data. This research has been funded through a strategic grant by the National Science and Engineering Research Council of Canada (NSERC).