Single-Phase Cooling of Large Surface by Water Droplet Flow

IF 1.3 4区工程技术 Q3 ENGINEERING, MECHANICAL

Journal of Engineering Thermophysics Pub Date : 2024-09-18 DOI:10.1134/s1810232824030093

A. D. Nazarov, N. B. Miskiv, A. F. Serov, V. N. Mamonov

引用次数: 0

Abstract

Single-phase heat transfer from a vertical titanium plate with area of 140 mm² to a water droplet flow (spray) normal to the surface of the heat exchanger was studied experimentally. Two models of commercial hydraulic full-cone nozzles with different characteristics of flow and spray pattern were used, the average mass flow rate being 2.4 kg/m²s to 6.46 kg/m²s. The maximum heat flux density of the heater was 204 kW/m². The area-averaged heat transfer coefficient was found to be highly dependent on the mass flow rate of the coolant. The average droplet diameter and the outflow velocity from nozzle openings appear to have secondary influence on single-phase heat transfer.

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利用水滴流对大面积表面进行单相冷却

摘要试验研究了面积为 140 mm2 的垂直钛板向热交换器表面法线方向的水滴流（喷雾）的单相传热。实验中使用了两种型号的商用液压全锥形喷嘴，它们的流量和喷射模式各不相同，平均质量流量为 2.4 kg/m2s 至 6.46 kg/m2s。加热器的最大热流密度为 204 kW/m2。研究发现，区域平均传热系数与冷却剂的质量流量有很大关系。平均液滴直径和喷嘴开口的流出速度似乎对单相传热有次要影响。

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

Journal of Engineering Thermophysics THERMODYNAMICS-ENGINEERING, MECHANICAL

CiteScore

2.30

自引率

12.50%

发文量

审稿时长

3 months

期刊介绍： Journal of Engineering Thermophysics is an international peer reviewed journal that publishes original articles. The journal welcomes original articles on thermophysics from all countries in the English language. The journal focuses on experimental work, theory, analysis, and computational studies for better understanding of engineering and environmental aspects of thermophysics. The editorial board encourages the authors to submit papers with emphasis on new scientific aspects in experimental and visualization techniques, mathematical models of thermophysical process, energy, and environmental applications. Journal of Engineering Thermophysics covers all subject matter related to thermophysics, including heat and mass transfer, multiphase flow, conduction, radiation, combustion, thermo-gas dynamics, rarefied gas flow, environmental protection in power engineering, and many others.