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research-article

Mathematical modeling and parametric study of a multi-zone continuous furnace

[+] Author and Article Information
Chao Liang

Heat Transfer Technology R&D, Praxair, Inc., 175 East Park Dr., Tonawanda, NY 14150, United States
chao_liang@praxair.com

Darshil Patel

Heat Transfer Technology R&D, Praxair, Inc., 175 East Park Dr., Tonawanda, NY 14150, United States
darshilr@buffalo.edu

Maulik Shelat

Heat Transfer Technology R&D, Praxair, Inc., 175 East Park Dr., Tonawanda, NY 14150, United States
maulik_shelat@praxair.com

1Corresponding author.

ASME doi:10.1115/1.4040278 History: Received August 14, 2017; Revised May 09, 2018

Abstract

An axisymmetric transient heat transfer model with boundary conditions varying both in time and length dimensions has been proposed and solved to obtain the temperature evolution along the inner surface of a finned tube heated in a multi-zone continuous furnace. Experiments for finned tube heating were conducted using a single-zone tubular batch furnace and the experimental data obtained was compared with the simulation results to establish reasonable confidence in the proposed model and boundary conditions. A parametric study on several important operating parameters was conducted to gain better insights that can be used in making design and operating decisions. If required, the model can conveniently be extended to other types of substrates and furnace dimensions.

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