Thermoengineering aspects of using concentrated solar radiation in collectors and high temperature evaporators for electricity generation

摘要

It's for the first time that the experimental data on superheating are considered generalized for incipient sodium boiling in high-temperature receiver-evaporator, perceptive to concentrated solar radiation. The ratio for calculation of the beginning of boiling up is received depending on temperature (pressure) of saturation and density of a heat flux is obtained. On its basis modeling of heat exchanges is accomplished and evaluation of influence of a heat flux non-uniformity to the temperature field of evaporator is given.