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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 30, No. 4, pp.245-252

ISSN: 2508-5107 (Online)

Print publication date 15 Aug 2021

Received 07 May 2021 Revised 09 Jun 2021 Accepted 15 Jun 2021

DOI: https://doi.org/10.7735/ksmte.2021.30.4.245

Batch-type 재가열로의 가열 효율 예측을 위한 CFD 해석 모델

이민재^a ; 강태원^a ; 윤장혁^a ; 양현익^a^{, *}

CFD Analysis Model to Predict the Heating Efficiency for a Batch-type Reheating Furnace

Min-jae Lee^a ; Tae-won Kang^a ; Jang-hyeok Yun^a ; Hyun-Ik Yang^a^{, *}

aDepartment of Mechanical Design Engineering, Hanyang University

Correspondence to: ^*Tel.: +82-31-436-8150 E-mail address: skynet@hanyang.ac.kr (Hyun-Ik Yang).

Abstract

Austenitizing and quenching are performed to obtain the desired microstructure and mechanical quality by heat treatment. In this process, when the temperature difference between the surface and the center of the product increases, problems such as creep and residual austenite occur. In this study, a CFD analysis model was developed to determine the adaptive operating environment that minimizes temperature deviation. The model was verified for validity according to the experimental results, with an error of <3%. Moreover, the internal flow field based on the product location, the difference in temperature between the upper and lower parts of the product, and the uniform temperature distribution were confirmed. In addition, this study compared the area fraction at which the fitting product reached the target temperature through CFD analysis. In conclusion, it was confirmed that the CFD analysis model can be applied for optimizing the shapes, product, and operation environment of the furnace.

Keywords:

CFD, Reheating furnace, Heating characteristics, Transient heat conduction

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Min-jae Lee

M. Sc. in the Department of Mechanical Engineering at Hanyang University.

His research interest is Heat Process Optimization.

E-mail: minjaeho10@hanyang.ac.kr

Tae-won Kang

Ph. D. in the Department of Mechanical Engineering at Hanyang University.

His research interest is Dynamic response evaluation of an floating offshore wind turbine.

E-mail: xodnjs0713@naver.com

Jang-hyeok Yun

Ph. D. in the Department of Mechanical Engineering at Hanyang University.

His research interest is Computation Fluid Dynamics.

E-mail: yunjange@hanyang.ac.kr

Hyun-Ik Yang

Professor in the Department of Mechanical Engineering at Hanyang University.

His research interests are Mechanical Design and Optimization, Offshore Structure Design, Welding Process Optimization and Hydrothermal Polymerization.

E-mail: skynet@hanyang.ac.kr