Numerical simulation of refrigerants flowing through short-tube orifices during flashing process

Journal article

Authors/Editors

SOMCHAI WONGWISES

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Publication Details

Author list: Nilpueng K., Wongwises S.

Publisher: Taylor & Francis: STM, Behavioural Science and Public Health Titles - No Open Select

Publication year: 2013

Journal: HVAC&R Research (1078-9669)

Volume number: 19

Issue number: 2

Start page: 159

End page: 174

Number of pages: 16

ISSN: 1078-9669

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874502628&doi=10.1080%2f10789669.2012.751812&partnerID=40&md5=d4c0044c72af04fe623b903fc30ea2af

Languages: English-Great Britain (EN-GB)

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Abstract

A numerical simulation for calculating the flashing flow characteristics of refrigerants inside short-tube orifices is presented. The refrigerant flow behaviors along short-tube orifices are separated into three sections: subcooled liquid region, metastable liquid region, and two-phase region. Annular two-phase flow pattern is developed from the mass, energy, and momentum equation. The present simulation is corroborated by comparison with the experimental data. The selection charts are also presented to estimate the refrigerant mass flow rate along short-tube orifices in practical applications. ฉ 2013 Taylor & Francis Group, LLC.

Keywords