MICROCHANNEL HEAT EXCHANGER FLOW VALIDATION STUDY

被引：0

作者：

Lance, Blake W. ^{[1
]}

Carlson, Matthew D. ^{[1
]}

机构：

[1] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA

来源：

PROCEEDINGS OF THE ASME TURBO EXPO: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, 2018, VOL 9 | 2018年

关键词：

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Flow maldistribution in microchannel heat exchanger (MCHEs) can negatively impact heat exchanger effectiveness. Several rules of thumb exist about designing for uniform flow, but very little data are published to support these claims. In this work, complementary experiments and computational fluid dynamics (CFD) simulations of MCHEs enable a solid understanding of flow uniformity to a higher level of detail than previously seen. Experiments provide a validation data source to assess CFD predictive capability. The traditional semi-circular header geometry is tested. Experiments are carried out in a clear acrylic MCHE and water flow is measured optically with particle image velocimetry. CFD boundary conditions are matched to those in the experiment and the outputs, specifically velocity and turbulent kinetic energy profiles, are compared.

引用

页数：14

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