Boiling Heat Transfer from a Dike

Abstract

It is known that hot dike complexes are one type of heat sources in a volcanic geothermal reservoir. To extract energy from a geothermal reservoir, it is important to know the cooling rate of the intrusives by groundwater. With a maximum temperature of 1,200?C, the intrusives are most likely to be cooled by film boiling during the initial sages and by single-phase convection during the later stages when its temperature becomes lower that the saturated temperature corresponding to the pressure. At the Second Workshop on Geothermal Reservoir Engineering, Cheng [l] has reported that the cooling rate of a dike by free convection of single-phase groundwater can be computed according to...