jie liu zhuang zhi zao yin ce liang liang xiang liu liang he gan du de li lun mo xing
Tong Yunxian Wang Wenran The mass flowrate and steam quality measuring of two phase flowrate is an essential issue in the tests of loss-of-coolant accident . The spatial stochastic distribution of phase concentration would cause a differential pressure noise when two phase flow is crossing a throttling set. Under the assumption of that the variance of disperse phase concentration is proportional to its mean phase concentration and by using the separated flow model of two phase flow;it has demonstrated that the variance of noise of differential pressure square root is approximately proportional to the flowrate of disperse phase. Thus;a theoretical model for measuring mass flowrate and quality of two phase flow by noise measurement is developed. It indicates that there is a possibility to measure two phase flowrate and steam quality by using the simple theoretical model and a sin- gle throttling set.
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