Two-phase flow model of a horizontal symmetrical impacting T-junction

X Van Heule,S Lecompte,M De Paepe,J Van Nieuwenhuyse

doi:10.1088/1742-6596/2116/1/012070

Abstract

A symmetrical distribution of the two-phase refrigerant mixture before the evaporator is crucial to achieve optimal performance of heat pumps. In a previous study experiments on two-phase flow in a horizontal symmetric impacting T-junction were conducted in our lab. The measurements performed include both pressure drop and phase distribution data of refrigerants. This data is unique as almost all previous experiments in literature investigate air-water flows. With this data a mechanistic model was constructed which is capable of predicting the phase distributions and pressure drop depending on the flow regime and the fluid properties. The model is capable of predicting 90% of the data with a maximum mean deviation of 5%.

Highlights

The measurements performed include both pressure drop and phase distribution data of refrigerants. This data is unique as almost all previous experiments in literature investigate air-water flows. With this data a mechanistic model was constructed which is capable of predicting the phase distributions and pressure drop depending on the flow regime and the fluid properties
Two-phase flows are a common occurrence in a wide variety of applications, ranging from boiling water reactors to domestic heat pumps
This geometry is often simplified in literature to a T-junction, which is the simplest example of a distributor head, only having 2 outlet tubes

Summary

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Introduction

Published under licence by IOP Publishing Ltd

Findings

Conclusion