Title: Numerical study of temperature and thermal stress with exergy aspects of 11.5 kW electric radiant tube

Authors: Cunwang Li; Fuyong Su; Wenlei Zhou; Kunpeng Zhang; Shengnan Wei

Addresses: School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, China ' School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, China ' School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, China ' School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, China ' School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, China

Abstract: In this paper, the numerical simulation of 11.5 kW electric radiation tube is carried out by Fluent software. The temperature variation law of resistance wire, the temperature uniformity of radiation tube sleeve and the thermal stress distribution of ceramic skeleton are analysed. According to the analysis results, the structure of electric radiation tube is optimised, and the temperature uniformity of radiation tube sleeve is improved. The research in this paper can provide a theoretical basis for the preparation of electric radiation tubes, and also provide ideas and methods for the optimisation of the structure of electric radiation tubes.

Keywords: electric heating; electric radiation tube; energy saving; environmental protection; temperature uniformity; thermal stress.

DOI: 10.1504/IJEX.2024.141688

International Journal of Exergy, 2024 Vol.45 No.1/2, pp.54 - 70

Received: 02 Apr 2024
Accepted: 10 Jul 2024
Published online: 30 Sep 2024 *

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