Shape optimization of a printed-circuit heat exchanger to enhance thermal-hydraulic performance

Conference · Sun Jul 01 00:00:00 EDT 2012

OSTI ID:22105954

Lee, S. M.; Kim, K. Y. ^[1]

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1. Dept. of Mechanical Engineering, Inha Univ., 253 Yonghyun-Dong, Nam-Gu, Incheon, 402-751 (Korea, Republic of)

Printed circuit heat exchanger (PCHE) is recently considered as a recuperator for the high temperature gas cooled reactor. In this work, the zigzag-channels of a PCHE have been optimized by using three-dimensional Reynolds-Averaged Navier-Stokes (RANS) analysis and response surface approximation (RSA) modeling technique to enhance thermal-hydraulic performance. Shear stress transport turbulence model is used as a turbulence closure. The objective function is defined as a linear combination of the functions related to heat transfer and friction loss of the PCHE, respectively. Three geometric design variables viz., the ratio of the radius of the fillet to hydraulic diameter of the channels, the ratio of wavelength to hydraulic diameter of the channels, and the ratio of wave height to hydraulic diameter of the channels, are used for the optimization. Design points are selected through Latin-hypercube sampling. The optimal design is determined through the RSA model which uses RANS derived calculations at the design points. The results show that the optimum shape enhances considerably the thermal-hydraulic performance than a reference shape. (authors)

• Research Organization: American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
• OSTI ID: 22105954
• Resource Relation: Conference: ICAPP '12: 2012 International Congress on Advances in Nuclear Power Plants, Chicago, IL (United States), 24-28 Jun 2012; Other Information: Country of input: France; 19 refs.; Related Information: In: Proceedings of the 2012 International Congress on Advances in Nuclear Power Plants - ICAPP '12| 2799 p.
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
22 GENERAL STUDIES OF NUCLEAR REACTORS
APPROXIMATIONS
CLOSURES
COMPUTERIZED SIMULATION
DESIGN
FRICTION
HEAT EXCHANGERS
HEAT TRANSFER
HTGR TYPE REACTORS
NAVIER-STOKES EQUATIONS
NUCLEAR POWER PLANTS
OPTIMIZATION
PRINTED CIRCUITS
REYNOLDS NUMBER
SAMPLING
STRESSES
THERMAL HYDRAULICS
THREE-DIMENSIONAL CALCULATIONS
TURBULENCE