Heat Transfer During Subcooled Hydrogen Boiling

Abstract

Various applications of cryogenic liquids in engineering have created continuous interest in the heat transfer processes occurring during subcooled boiling. Experimental studies of pool boiling of subcooled cryogenic liquids are few in number. These include studies with hydrogen[1], nitrogen[2 ],and helium[3]. The available data are insufficient to determine the subcooling effect upon the heat transfer coefficients. The limited information which is available on the vapor bubble dynamics in boiling nitrogen was obtained with very low subcooling, i.e., about 1 K[4].