System-Level Impingement Cooling with Cryogens

IF 1.1 4区工程技术 Q4 ENGINEERING, MECHANICAL

Journal of Thermophysics and Heat Transfer Pub Date : 2023-07-01 DOI:10.2514/1.t6574

Nicholas Pellizzari, Ryan Touzjian, Andrea Scouras, William P. Flaherty

引用次数: 1

Abstract

System-level impingement cooling with cryogens has potential thermal applications in size-constrained, weight-constrained, and power-constrained or low-atmosphere environments by utilizing a phase change for enhanced heat transfer at cryogenic temperatures. In this work, an experiment capable of measuring the heat and mass flow of liquid nitrogen jets for variable impingement surface temperatures, mass flow rates, and jet geometries is developed. A boiling curve and other performance metrics are produced. A critical heat flux of approximately [Formula: see text] is observed.

查看原文本刊更多论文

用冷冻剂进行系统级撞击冷却

在低温下，利用相变增强传热，系统级低温冲击冷却在尺寸受限、重量受限、功率受限或低大气环境中具有潜在的热应用前景。在这项工作中，开发了一个能够测量液氮射流在不同撞击表面温度、质量流量和射流几何形状下的热量和质量流的实验。生成沸腾曲线和其他性能指标。观察到的临界热通量近似为[公式:见文]。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Thermophysics and Heat Transfer 工程技术-工程：机械

CiteScore

3.50

自引率

19.00%

发文量

审稿时长

3 months

期刊介绍： This Journal is devoted to the advancement of the science and technology of thermophysics and heat transfer through the dissemination of original research papers disclosing new technical knowledge and exploratory developments and applications based on new knowledge. The Journal publishes qualified papers that deal with the properties and mechanisms involved in thermal energy transfer and storage in gases, liquids, and solids or combinations thereof. These studies include aerothermodynamics; conductive, convective, radiative, and multiphase modes of heat transfer; micro- and nano-scale heat transfer; nonintrusive diagnostics; numerical and experimental techniques; plasma excitation and flow interactions; thermal systems; and thermophysical properties. Papers that review recent research developments in any of the prior topics are also solicited.