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contributor authorCai, Benan
contributor authorZhang, Qi
contributor authorWeng, Yu
contributor authorGu, Hongfang
contributor authorWang, Haijun
date accessioned2022-02-04T22:50:44Z
date available2022-02-04T22:50:44Z
date copyright1/1/2020 12:00:00 AM
date issued2020
identifier issn2332-8983
identifier otherners_006_01_011401.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4275555
description abstractPipelines such as the surge line and main pipe are easily subjected to thermal stratification and thermal fatigue as a result of the nonuniform temperature distribution in the nuclear power plants. When the surge line or main pipe subjected to thermal stratification and thermal fatigue keeps operating for long time, the pipe leakage may happen due to the existence of pipeline crack. When the fluids with high temperature and pressure leak in the crack, the water will evaporate quickly, which means this process belongs to spray flash evaporation process. The flash evaporation related to pipe leak was experimentally studied in the paper. The experiment was carried out under high temperature and high pressure with low spray rate. The temperature and relative humidity (T&H) variations over time were monitored in the experiment with installing T&H detectors. The T&H variations at different measurement positions and with different spray rates were analyzed, respectively. In addition, the effect of the dimensionless parameters including the Weber number and Jakob number was also investigated. Results indicated that the response speed increased with the increase of the spray flow rate. Higher Weber number and higher Jakob number led to higher evaporation rate. The slight pipe leakage can be predicted by using the (T&H) in the hazardous areas.
publisherThe American Society of Mechanical Engineers (ASME)
titleExperimental Investigation on Flash Evaporation Related to Pipe Leakage
typeJournal Paper
journal volume6
journal issue1
journal titleJournal of Nuclear Engineering and Radiation Science
identifier doi10.1115/1.4045125
journal fristpage011401-1
journal lastpage011401-6
page6
treeJournal of Nuclear Engineering and Radiation Science:;2020:;volume( 006 ):;issue: 001
contenttypeFulltext


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