Studies on fluids at supercritical pressure have been developed in a rapid-growth manner so that geometries are not restricted to circular tube. This paper is devoted to conduct a brief review of the recent main experiments on supercritical fluids such as CO 2
, water, R134a and n-decane, and to comment the findings. In addition, this paper discusses the probability of supercritical fluids flowing across tube bundles for the frequent use in shell-and-tube heat exchangers in supercritical power cycle systems. A numerical prediction of flow... (More)
Studies on fluids at supercritical pressure have been developed in a rapid-growth manner so that geometries are not restricted to circular tube. This paper is devoted to conduct a brief review of the recent main experiments on supercritical fluids such as CO 2
, water, R134a and n-decane, and to comment the findings. In addition, this paper discusses the probability of supercritical fluids flowing across tube bundles for the frequent use in shell-and-tube heat exchangers in supercritical power cycle systems. A numerical prediction of flow patterns and heat transfer characteristics of a circular tube in supercritical water crossflow is carried out to make a fundamental investigation of the application of supercritical fluids on external flows. Results indicate that the influence of heat flux on heat transfer in crossflow is similar with that for in-tube flows. The thermal physical properties significantly affect the heat transfer and the flow patterns also show unique characteristics with the change of boundary conditions.
@article{e548ac6d-0290-4fbf-b256-8636a0586807,
abstract = {{<p><br>
Studies on fluids at supercritical pressure have been developed in a rapid-growth manner so that geometries are not restricted to circular tube. This paper is devoted to conduct a brief review of the recent main experiments on supercritical fluids such as CO <br>
<sub>2</sub><br>
, water, R134a and n-decane, and to comment the findings. In addition, this paper discusses the probability of supercritical fluids flowing across tube bundles for the frequent use in shell-and-tube heat exchangers in supercritical power cycle systems. A numerical prediction of flow patterns and heat transfer characteristics of a circular tube in supercritical water crossflow is carried out to make a fundamental investigation of the application of supercritical fluids on external flows. Results indicate that the influence of heat flux on heat transfer in crossflow is similar with that for in-tube flows. The thermal physical properties significantly affect the heat transfer and the flow patterns also show unique characteristics with the change of boundary conditions. <br>
</p>}},
author = {{Xie, Jingzhe and Yan, Hongbin and Sundén, Bengt and Xie, Gongnan}},
issn = {{1359-4311}},
keywords = {{Buoyancy; Heat transfer deterioration; Supercritical fluids; Thermophysical properties; Tube crossflow}},
language = {{eng}},
pages = {{692--703}},
publisher = {{Elsevier}},
series = {{Applied Thermal Engineering}},
title = {{A numerical prediction on heat transfer characteristics from a circular tube in supercritical fluid crossflow}},
url = {{http://dx.doi.org/10.1016/j.applthermaleng.2019.03.062}},
doi = {{10.1016/j.applthermaleng.2019.03.062}},
volume = {{153}},
year = {{2019}},
}