Supercritical Carbon Dioxide Heat Transfer in Horizontal Semicircular Channels
Supercritical Carbon Dioxide Heat Transfer in Horizontal Semicircular Channels
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DOI：
10.1115/1.4006108
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发表时间：
2012-08
影响因子：
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通讯作者：
A. Kruizenga;Li Hongzhi;M. Anderson;M. Corradini
中科院分区：
文献类型：
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作者：
A. Kruizenga;Li Hongzhi;M. Anderson;M. Corradini
布雷顿循环：热交换器设计的复杂性，由于在流体的临界点附近的热物理性质的巨大变化。采用雷诺数为100 K的二氧化碳，在7.5-10.1 MPa的压力下，在跨越假临界温度的温度下进行了紊流换热实验。几何采用九个半圆形，平行通道，以帮助理解当前印刷电路交换器的设计。计算流体力学采用
Brayton cycle: thecomplexity of heat exchanger design due to the vast change in thermophysical propertiesnear a fluid’s critical point. Turbulent heat transfer experiments using carbon dioxide,with Reynolds numbers up to 100 K, were performed at pressures of 7.5–10.1 MPa, attemperatures spanning the pseudocritical temperature. The geometry employed ninesemicircular, parallel channels to aide in the understanding of current printed circuitheat exchanger designs. Computational fluid dynamics was performed using