Design optimization of heater grid plates

Amir Khalilollahi, Hamid Torab

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Compact electrical heating and heat dissipating units are designed for several industrial applications where durability and stability of the unit under dynamic conditions have high priority. This paper initially investigates numerically the thermal characteristics of a custom build compact heater plate which can provide a geometrically optimized electrical resistance in application to heating or eliminating unwanted currents. The electrical resistance varies with the geometry and the locations of the cutouts (holes) in the plate. This analysis will significantly contribute to overall optimization of heating units that utilize these plates. The flow and thermal regimes between two adjacent ribbed plates with cutout holes were evaluated numerically by a finite difference code. This results in estimated local heat transfer coefficients which are used in the next phase of study. The second phase relates the heat transport to the temperature distribution on the plate by using a 3D finite element model. In the F.E. model, heat is generated due to non-uniform current through properly divided plate segments. Using this model the electrical resistance was evaluated as a function of hole geometry. Finally the geometry and location of ribs and holes were determined using a simple optimization technique in order to render the uniformity of surface temperature as desired for prevention of warping or excessive stresses.

Original languageEnglish (US)
Title of host publicationProceedings of the 003 ASME Summer Heat Transfer Conference, Volume 1
PublisherAmerican Society of Mechanical Engineers
Pages673-677
Number of pages5
ISBN (Print)0791836932, 9780791836934
DOIs
StatePublished - Jan 1 2003
Event2003 ASME Summer Heat Transfer Conference (HT2003) - Las Vegas, NV, United States
Duration: Jul 21 2003Jul 23 2003

Publication series

NameProceedings of the ASME Summer Heat Transfer Conference
Volume2003

Other

Other2003 ASME Summer Heat Transfer Conference (HT2003)
CountryUnited States
CityLas Vegas, NV
Period7/21/037/23/03

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Khalilollahi, A., & Torab, H. (2003). Design optimization of heater grid plates. In Proceedings of the 003 ASME Summer Heat Transfer Conference, Volume 1 (pp. 673-677). (Proceedings of the ASME Summer Heat Transfer Conference; Vol. 2003). American Society of Mechanical Engineers. https://doi.org/10.1115/ht2003-47205