Simulation of refrigerants flowing through adiabatic capillary tubes
Resource
Int. J. HVAC&R 6 (2): 101-115
Journal
Internationl Journal HVAC&R
Journal Volume
6
Journal Issue
2
Pages
101-115
Date Issued
2000
Date
2000
Author(s)
Abstract
This paper presents a model for the flow of refrigerants through adiabatic capillary tubes. The flow of refrigerant is characterized by a subcooled liquid region, a metastable liquid region, a metastable two-phase region, and an equilibrium two-phase region. The mass and momentum conservation equations for each of these four regions are converted into finite difference forms and solved using a 4th order Runge-Kutta method. The calculated results compare well with experimental data on R-22. The predictions from the model are employed to develop correlations for the design of refrigerant 134a through adiabatic capillary tubes with the tube exit in the choked flow condition.
SDGs
Type
journal article