Thermophysical Properties of Biporous Sintered Copper

Author:

Lin Ying-Yu1,Semenic Tadej1,Catton Ivan1

Affiliation:

1. University of California at Los Angeles

Abstract

Thermophysical properties of bidispersed (biporous)-sintered copper are measured. An apparatus to measure effective thermal conductivity of dry samples is built. It is calibrated using bulk samples with known thermal conductivity. Permeability is measured based on flow resistance though the porous samples. Velocity at different pressure drops is measured and the permeability calculated using Darcy’s law. The experiment is performed using silicone oil as working liquid. The error of the method is less than three percent. Capillary pressure for all samples is measured based on amount of liquid that is held by the porous sample. The Young-Laplace relationship is used to relate capillary pressure to effective pore radius. Porosity of the samples is measured using density method. According to the measurement results, effective thermal conductivity of biporous samples is much lower than for comparable monoporous samples. Permeability and porosity of biporous samples are much higher than the monoporous samples. Capillary pressure of the biporous samples is very close to the one measured for the monoporous samples.

Publisher

ASMEDC

Reference16 articles.

1. Mo¨ßbauer, S., Pickena¨cker, O., Pickena¨cker, K., Trimis, D., 1999, “Application of the porous burner technology in energy and heat-engineering,” Proceedings of the Fifth International Conference on Technologies and Combustion for a Clean Environment (Clean Air V), Lisbon, 1(20.2), pp. 519–523.

2. Chen Z. Q. , ChengP., ZhaoT. S., 2000, “An experimental study of two phase flow and boiling heat transfer in bi-dispersed porous channels,” Int. Commun. Heat Mass Transfer, 27(3), pp. 293–302.

3. Carson J. K. , LovattS. J., TannerD. J., ClelandA. C., 2005, “Thermal conductivity bounds for isotropic porous materials,” Journal of Heat and Mass Transfer, 48, pp. 2150–2158.

4. Lin, Y.Y., Semenic, T., Catton, I., 2005, “Thermophysical Properties of Monoporous Sintered Copper,” Heat Transfer Conference, San Francisco, California.

5. Scheidegger, E., 1963, “The physics of flow through porous media,” University of Toronto Press, p. 10, Toronto, Ontario

Cited by 8 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3