The Effects of Forced Convection on the Power Dissipation of Constant-Temperature Thermal Conductivity Sensors-Reference-Cited by-同舟云学术

The Effects of Forced Convection on the Power Dissipation of Constant-Temperature Thermal Conductivity Sensors

Published:1997-02-01 Issue:1 Volume:119 Page:30-37
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Huang Y.¹,Bau H. H.¹

Affiliation:

1. Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104-6315

Abstract

The effect of forced convection on the power dissipation of cylindrical and planar, constant temperature, thermal conductivity detectors (TCDs) is investigated theoretically. Such detectors can be used either for on-line continuous sensing of fluid thermal conductivity or for determining the sample concentrations in gas chromatography. A low Peclet number, asymptotic theory is constructed to correlate the TCD’s power dissipation with the Peclet number and to explain experimental observations. Subsequently, the effect of convection on the TCD’s power dissipation is calculated numerically for both time-independent and time-dependent flows. The theoretical predictions are compared with experimental observations.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/119/1/30/5507943/30_1.pdf

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4. Huang, Y., 1995, Transport Processes in Thermal Conductivity Detectors, Ph.D. dissertation, University of Pennsylvania.

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