0
Research Papers: Experimental Techniques

A Hybrid Method for Measuring Heat Flux

[+] Author and Article Information
David O. Hubble

Department of Mechanical Engineering, AEThER Laboratory, Virginia Polytechnic Institute and State University, 114R Randolph Hall, Blacksburg, VA 24061

Tom E. Diller

Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, 114R Randolph Hall, Blacksburg, VA 24061

J. Heat Transfer 132(3), 031602 (Dec 28, 2009) (8 pages) doi:10.1115/1.4000051 History: Received February 15, 2009; Revised July 20, 2009; Published December 28, 2009; Online December 28, 2009

The development and evaluation of a novel hybrid method for obtaining heat flux measurements is presented. By combining the spatial and temporal temperature measurements of a heat flux sensor, the time response, accuracy, and versatility of the sensor is improved. Sensors utilizing the hybrid method are able to make heat flux measurements on both high and low conductivity materials. It is shown that changing the thermal conductivity of the backing material four orders of magnitude causes only an 11% change in sensor response. The hybrid method also increases the time response of heat flux sensors. The temporal response is shown to increase by up to a factor of 28 compared with a standard spatial sensor. The hybrid method is tested both numerically and experimentally on both high and low conductivity materials and demonstrates significant improvement compared with operating the sensor as a spatial or temporal sensor alone.

FIGURES IN THIS ARTICLE
<>
Copyright © 2010 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Sensor-backing system

Grahic Jump Location
Figure 2

Temperature profile with sensor-backing system

Grahic Jump Location
Figure 3

Comparison of slug calorimeter response using different temperature measurements

Grahic Jump Location
Figure 4

Simulated response of sensor in three modes of operation

Grahic Jump Location
Figure 5

Error as a function of time and backing material thermal conductivity

Grahic Jump Location
Figure 6

Error of HHF2 using only T2 in slug calorimeter term of HHF compared with standard methods

Grahic Jump Location
Figure 7

Error of HHF1 using only T1 in slug calorimeter term of HHF compared with standard methods

Grahic Jump Location
Figure 8

HTHFS design overview

Grahic Jump Location
Figure 9

Stagnation flow convection calibration facility

Grahic Jump Location
Figure 10

Convective heat transfer coefficient

Grahic Jump Location
Figure 11

Sensor on water cooled backing

Grahic Jump Location
Figure 12

Sensor on water cooled backing using only T2 in slug and hybrid methods

Grahic Jump Location
Figure 13

Sensor on insulated backing

Grahic Jump Location
Figure 14

Sensor on insulated backing using only T2 in slug and hybrid methods

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In