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http://dx.doi.org/10.3795/KSME-A.2015.39.4.447

A Study on the Structural Integrity Considering the Installation of a Micro-tube Heat Exchanger  

Oh, Se Yun (Dept. of Mechanical Engineering, Korea Maritime and Ocean Univ.)
Kim, Tae Jin (Dept. of Mechanical Engineering, Korea Maritime and Ocean Univ.)
Cho, Jong Rae (Dept. of Mechanical Engineering, Korea Maritime and Ocean Univ.)
Jeong, Ho Sung (PNU &Rolls-Royce Univ. Technology Center, Pusan Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.39, no.4, 2015 , pp. 447-451 More about this Journal
Abstract
The objective of this study is to predict the structural characteristics of a heat exchanger mounted on an aircraft engine using finite element analysis. The plastic fracture and life of the heat exchanger were estimated by a thermo-mechanical analysis. Tensile tests were conducted under high temperature conditions (700, 800, 900, 1000 K) using five specimens to obtain the mechanical properties of the Inconel 625 tubes. To assess the structural characteristics of the heat exchanger, the full and partial models were applied under the operating conditions given by the thermo-mechanical and inertial load. As a result, the case, tubesheet, flange, and mounting components have a reasonable safety margin to the allowable stress assuming a fatigue strength of Inconel 625 of 10000 cycles under 1000 K.
Keywords
Heat Exchanger; FE Analysis; Micro-Tube; Tubesheet; Manifold; Mounting;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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