In view of predicting the boiling heat transfer coefficient(HTC)at a deionized water pool,current theoretical research is mainly based on Rohsenow correlation formula,and the empirical parameters in the correlation formula are optimized through using a fixed numerical method.Based on Rohsenow correlation formula,the relationships between the two empirical parameters and the superheat in the correlation formula are established through the fitting method,and then a modified model is constructed for predicting HTC of pool boiling.Compared with the boiling experimental results from three groups of deionized water copper surface pools,the average prediction errors of the modified model for HTC are 17.79%,5.35%and 18.14%,which are better than those of Rohsenow correlation model and Li correlation model.This research work can provide some theoretical help for HTC prediction.
pool boilingheat transfer coefficientheat fluxRohsenow correlationprediction model
NETL
NSTL
万方数据
