Study of Drop-Stream Condensation by the Gradient Heatmetry

IF 1 4区物理与天体物理 Q4 PHYSICS, APPLIED

High Temperature Pub Date : 2024-03-21 DOI:10.1134/s0018151x2304017x

E. R. Zainullina, V. Yu. Mityakov

引用次数: 0

Abstract

The capabilities of flow visualization and gradient heatmetry are combined for the first time in studying heat transfer during condensation. The local heat flux per unit area during drop-stream condensation of water steam on the surface of a vertical plate was measured. In the drop-stream condensation mode, the average value of a significantly unsteady heat flux was about 31.2 kW/m². The heat flux unsteady shows a complex physical picture of condensation. The results of the experiment revealed the possibility of using gradient heatmetry as a method for monitoring heat transfer during condensation.

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利用梯度热量测量法研究滴流凝结

摘要在研究冷凝过程中的传热时，首次将流动可视化和梯度热量测量相结合。测量了水蒸汽在垂直板表面滴流冷凝过程中单位面积的局部热通量。在滴流冷凝模式下，明显不稳定的热通量平均值约为 31.2 kW/m2。不稳定的热通量显示了冷凝的复杂物理现象。实验结果揭示了使用梯度热量测量法监测冷凝过程中热量传递的可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

High Temperature 物理-物理：应用

CiteScore

1.50

自引率

40.00%

发文量

审稿时长

4-8 weeks

期刊介绍： High Temperature is an international peer reviewed journal that publishes original papers and reviews written by theoretical and experimental researchers. The journal deals with properties and processes in low-temperature plasma; thermophysical properties of substances including pure materials, mixtures and alloys; the properties in the vicinity of the critical point, equations of state; phase equilibrium; heat and mass transfer phenomena, in particular, by forced and free convections; processes of boiling and condensation, radiation, and complex heat transfer; experimental methods and apparatuses; high-temperature facilities for power engineering applications, etc. The journal reflects the current trends in thermophysical research. It presents the results of present-day experimental and theoretical studies in the processes of complex heat transfer, thermal, gas dynamic processes, and processes of heat and mass transfer, as well as the latest advances in the theoretical description of the properties of high-temperature media.