Fundamental Investigation of Direct Contact Heat Exchange for Application in HVAC Systems: A Case Study

Author:

Hensley Joshua L.1,Bryan James E.1

Affiliation:

1. University of Missouri at Columbia

Abstract

An air conditioning system based on a direct contact heat and mass transfer process between water and air may offer benefits such as increased energy efficiency, temperature and humidity control, and improved indoor air quality. To investigate the feasibility of this type of technology, a numeric model is used to study the heat and mass transfer between a single droplet and moist air to gain fundamental insight into the heat and mass transfer process. Further, preliminary experiments are performed in a low speed temperature and humidity controlled wind tunnel to validate some of the models findings, e.g. the effect of droplet size on heat and mass transfer. A case study is presented to investigate how such a system would operate in a hot, dry climate as well as a hot and humid climate.

Publisher

ASMEDC

Reference17 articles.

1. Kuehn, T.H., Ramsey, J.W., and Threlkeld, J.L., 1998, Thermal Environmental Engineering, 3rd Ed., Prentice Hall, Upper Saddle River, New Jersey.

2. Hensley, J. 2003, “Development of a modular wind tunnel and experimental process for use in the investigation of electrohydrodynamically enhanced spray cooling” Honors Thesis, Univ. of Missouri - Columbia.

3. Hensley, J., Lynch, J., Hawn, C., Siegel, S., 2004 “Feasibility Study of a Direct Contact Heat Transfer Heat Exchanger for Use in a Residential HVAC System,” final report submitted to DEED for 2003 Senior Technical Design Project.

4. Hensley, J. L., 2005, “A Practical Model for Investigating Heat and Mass Transfer in a Direct Contact Heat Exchanger,” Master’s Thesis, Univ. of Missouri — Columbia.

5. Bo Ni , 1999, “Numerical Method for Heat and Mass Transfer in Air Washer — 1. Mathematical Solution for a Droplet Evaporating in a Finite Surrounding Airstream,” Journal of China Textile University (Eng. Ed.), 16, 4, pp. 101–103.

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