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What is Pseudo Critical Water

Chapter 11
Handbook of Research on Advancements in Supercritical Fluids Applications for Sustainable Energy Systems
In the three-region model of supercritical water instabilities, Pseudo Critical Water is a new definition, similar as the saturated water at subcritical pressures. It is the lower limit of the heavy & light fluid mixture region.
Published in Chapter:
Heat Transfer and Fluid Flow Modeling for Supercritical Fluids in Advanced Energy Systems
Hongzhi Li (Xi'an Thermal Power Research Institute Co. Ltd., China) and Yifan Zhang (Xi'an Thermal Power Research Institute Co. Ltd., China)
Copyright: © 2021 |Pages: 35
DOI: 10.4018/978-1-7998-5796-9.ch011
Abstract
This chapter aims to model the supercritical fluids thermal hydraulics behaviors including heat transfer, pressure drops, and flow instabilities for the purpose of accurate design and efficient safe operation of advanced energy systems. At first, the convection heat transfer models considering the effect of nonlinear properties and the effect of buoyancy and acceleration have been provided and discussed. Secondly, the hydraulic resistance models for supercritical fluids have been selected and suggested for different conditions. Thirdly, the published models for supercritical flow instabilities based on four different regional partitions are summarized and clarified. At last, two typical case studies have been provided to further intuitively elaborate the thermal hydraulics of supercritical fluids within the advanced energy systems.
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