| Document Type |
Master's Dissertation |
| Author |
Van Rooyen, Eugene
|
| Email |
eugenevr@tuks.co.za |
| URN |
etd-01152008-121542 |
| Document Title |
Time-fractional analysis of flow patterns during refrigerant condensation |
| Degree |
MEng (Mechanical Engineering) |
| Department |
Mechanical and Aeronautical Engineering |
| Supervisor |
| Advisor Name |
Title |
| Prof J P Meyer |
Co-Supervisor |
| Prof L Liebenberg |
Supervisor |
|
| Keywords |
- flow pattern
- smooth tube
- condensation
- time fraction
|
| Date |
2007-09-05 |
| Availability |
unrestricted |
Abstract
The conceptual design and basic layout of a modular refrigerant test
system capable of flow condensation and evaporation were performed.
The purpose of this study was the investigation of flow patterns during
refrigerant condensation in intermittent flow in order to improve the
prediction models. An objective flow pattern descriptor was developed
to identify and describe transitions in flow regimes. The methods
developed and utilised in this study were used to develop a time-fractional
map of the intermittent flow regime. The time-fractions are statistical averages of gravity dominated and shear dominated flows occurring in intermittent flow.
© University of Pretoria
|
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dissertation.pdf |
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