A method for evaluation of critical heat flux densities

A method for evaluating critical heat flux densities is developed. It is shown that cooling capacity of quenchants must be characterized by the complex of parameters: critical heat flux densities, heat transfer coefficients during both film and nucleate boiling, and single-phase convection. The new technique of the determination of critical heat flux densities in non-stationary conditions of heat transfer is suggested. It consists of use cylindrical silver specimens having thermocouple at the distance of R/2 which measured average temperature vs. time. Developed method can be used for creation new standard of measuring critical heat flux densities.