Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6589821 | Chemical Engineering Science | 2015 | 7 Pages |
Abstract
The period of Density Wave Oscillations (DWOs) in an uniformly heated horizontal test section is experimentally investigated. The test section consists of a 5Â mm I.D. pipe where R134a is used as working fluid. The experiment is performed for a range of inlet pressures Pi [500-1200Â kPa], inlet sub-cooling [10 and 20Â K], maintaining constant heat fluxes qâ³ [38Â kW/m2] and mass flux G [300Â kg/m2s]. The effect of the system parameters on the period of the DWOs is studied. It is observed that the period of the DWOs increases as inlet pressure and inlet sub-cooling temperature increase. Furthermore it is observed changes in the period which might be connected to the changes in the flow regime distribution inside the pipe.
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Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Carlos A. Dorao,