Research Papers: Forced Convection

Real-Time Determination of Convective Heat Transfer Coefficient Via Thermoelectric Modules

[+] Author and Article Information
Nataporn Korprasertsak

School of Manufacturing Systems
and Mechanical Engineering,
Sirindhorn International Institute of Technology,
Thammasat University,
P.O. Box 22, Thammasat-Rangsit Post Office,
Pathum Thani 12121, Thailand
e-mail: nataporn.korp@gmail.com

Thananchai Leephakpreeda

School of Manufacturing Systems and
Mechanical Engineering,
Sirindhorn International Institute of Technology,
Thammasat University,
P.O. Box 22, Thammasat-Rangsit Post Office,
Pathum Thani 12121, Thailand
e-mail: thanan@siit.tu.ac.th

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received January 13, 2017; final manuscript received May 3, 2017; published online June 1, 2017. Assoc. Editor: Dr. Antonio Barletta.

J. Heat Transfer 139(10), 101701 (Jun 01, 2017) (8 pages) Paper No: HT-17-1020; doi: 10.1115/1.4036734 History: Received January 13, 2017; Revised May 03, 2017

In this paper, the determination of convective heat transfer coefficient under actual convection processes is proposed by using thermoelectric modules. The thermoelectric modules are positioned where cooling/heating processes take place. Based on the Seebeck effect and energy balance, voltage signals are mathematically related to the convective heat transfer coefficient in real time. In experiments, convective heat transfer coefficients of airflow in a wind tunnel are determined under heating/cooling processes at various wind speeds. The relative mean difference of the convective heat transfer coefficients between the proposed methodology and empirical formula is 2.31%. For real-time implementation, convective heat transfer coefficients of a copper plate, which is exposed to outdoor conditions during a whole day, are determined to predict copper plate temperatures from a governing equation. The performance of temperature prediction is confirmed by a coefficient of determination R2 of 0.9992. Analytical and experimental results show the effectiveness of the proposed thermoelectric modules in determining the convective heat transfer coefficient for air under actual cooling/heating conditions, in time.

Copyright © 2017 by ASME
Your Session has timed out. Please sign back in to continue.


Bairi, A. , 2016, “ Quantification of the Natural Convective Heat Transfer for the Tilted and Wire-Bonded QFN32b-PCB Electronic Assembly,” Int. Commun. Heat Mass Transfer, 72, pp. 84–89. [CrossRef]
Mavromatidis, L. E. , 2016, “ Study of Coupled Transient Radiation-Natural Convention Heat Transfer Across Rectangular Cavities in the Vicinity of Low Emissivity Thin Films for Innovative Building Envelope Applications,” Energy Build., 120, pp. 114–134. [CrossRef]
Incropera, F. P. , and DeWitt, D. P. , 2007, Fundamentals of Heat and Mass Transfer, 6th ed., Wiley, Hoboken, NJ.
McAdams, W. H., 1958, Heat Transmission, 3rd ed., McGraw-Hill, New York.
Zhang, J. , and Delichatsios, M. A. , 2009, “ Determination of the Convective Heat Transfer Coefficient in Three-Dimensional Inverse Heat Conduction Problems,” Fire Saf. J., 44(5), pp. 681–690. [CrossRef]
de Lieto Vollaro, A. , Galli, G. , and Vallati, A. , 2015, “ CFD Analysis of Convective Heat Transfer Coefficient on External Surfaces of Buildings,” Sustainability, 7(7), pp. 9088–9099. [CrossRef]
Leephakpreeda, T. , 2012, “ Applications of Thermoelectric Modules on Heat Flow Detection,” ISA Trans., 51(2), pp. 345–350. [CrossRef] [PubMed]
Sippawit, N. , and Leephakpreeda, T. , 2015, “ A Study of Sensing Heat Flow Through Thermal Walls by Using Thermoelectric Module,” Therm. Sci., 19(5), pp. 1497–1505. [CrossRef]
Leephakpreeda, T. , 2012, “ Experimental Determination of Thermoelectric-Module Parameters and Modeling for Cooling/Heating Control Design,” Exp. Tech., 36(6), pp. 13–20. [CrossRef]
Korprasertsak, N. , and Leephakpreeda, T. , 2016, “ Mathematical Modeling and Validation of Cooling/Heating Effects in Thermoelectric Module Coupled With Heat Sinks,” Seventh International Conference on Mechanical and Aerospace Engineering (ICMAE), London, UK, July 18–22, pp. 95–99.


Grahic Jump Location
Fig. 1

Convective heat transfer on a surface

Grahic Jump Location
Fig. 2

Schematic diagram of thermoelectric module: (a) thermal part and (b) electrical part

Grahic Jump Location
Fig. 3

Schematic structures: (a) lumped parameter models of thermoelectric module coupled with heat sink and (b) proposed thermoelectric modules

Grahic Jump Location
Fig. 10

Performance of temperature prediction via: (a) real-time determination of convective heat transfer coefficient and (b) constant convective heat transfer coefficient

Grahic Jump Location
Fig. 9

Experimental results of temperature prediction for copper plate in time

Grahic Jump Location
Fig. 8

Input data in time: (a) irradiance and air temperature, (b) voltages and temperatures of thermoelectric modules, (c) convective heat transfer coefficient, and (d) error function

Grahic Jump Location
Fig. 7

Experiment of copper plate under heating/cooling air: (a) schematic diagram and (b) actual setup

Grahic Jump Location
Fig. 6

Plots of convective heat transfer coefficients against wind speed

Grahic Jump Location
Fig. 5

Experimental rig for convective heat transfer under steady-state airflow

Grahic Jump Location
Fig. 4

Determination of overall heat transfer coefficient via thermoelectric modules




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