A comparison review of critical flow properties of two-phase flow using isentropic and isenthalpic modeling in Homogenous Equilibrium Model (HEM) Fauzan Azima (a), HB Aditiya (a)*
(a) Department of Mechanical Engineering, Sampoerna University, Jakarta
*aditiya.harjon[at]my.sampoernauniversity.ac.id
Abstract
A various experimental approach in the purpose of examining the critical flow properties of numerous fluids has been performed. The models such as homogenous equilibrium models (HEM), Homogenous Frozen Model (HFM), and Non-homogenous Equilibrium Model (NEM) have been explored. The homogenous model is found to be more preferable compare to the non-homogenous model as it is known to be less complicated. In order to evaluate the HEM, three methods namely isentropic HEM, isenthalpic HEM, and Sajben HEM are available. Considering the less listed assumptions, isentropic and isenthalpic flow path thus taken as an interest in this study instead of Sajben modeling. Moreover, these two types of HEM modeling are useful to be applied in cases where extensive properties data are not completely available. Therefore, this paper provides a review summary and discussion of the comparison isentropic and isenthalpic modeling to investigate the critical properties of two-phase flow in HEM. From the analysis, it is generally found that both isentropic and isenthalpic modeling own similar behavior with the value of critical mass flux relatively close between one and another.
