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Experimental study on transient heat transfer characteristics of intermittent spray cooling
Experimental Heat Transfer ( IF 3.5 ) Pub Date : 2019-12-24 , DOI: 10.1080/08916152.2019.1707909
Xiao Zhao 1 , Zhichao Yin 1 , Bo Zhang 1
Affiliation  

ABSTRACT Experiments were performed to investigate the transient cooling characteristics of intermittent spray cooling (ISC) in single-phase and nucleate-boiling regimes. The consumption of residual liquid in the non-injection period was confirmed via observations of the dynamic behavior through visualization experiments. The time variation of the surface heat transfer is relatively small in the single-phase regime and minimal in the initial nucleate-boiling regime. Further, ISC was considered as a process where the transient mass flow rate was specified by the characteristic time. This idea was successfully evaluated in the prediction of the critical heat flux in cryogen spray cooling. Abbreviations: CHF: critical heat flux; CSC: cryogen spray cooling; DC: duty cycle; ISC: intermittent spray cooling; SFSM: sequential function specification method

中文翻译:

间歇喷雾冷却瞬态传热特性的实验研究

摘要 进行了实验以研究单相和核沸腾状态下间歇喷雾冷却 (ISC) 的瞬态冷却特性。通过可视化实验观察动态行为,确认了非注射期间残留液体的消耗。表面传热的时间变化在单相状态下相对较小,在初始核沸腾状态下最小。此外,ISC 被认为是一个过程,其中瞬态质量流量由特征时间指定。这个想法在冷冻剂喷雾冷却的临界热通量的预测中得到了成功的评估。缩写: CHF:临界热通量;CSC:冷冻剂喷雾冷却;DC:占空比;ISC:间歇喷雾冷却;SFSM:顺序函数指定方法
更新日期:2019-12-24
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