Evaluation and performance prediction of cooling tower rain zones

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dc.contributor.advisorReuter, H. C. R.
dc.contributor.advisorKroger, D. G.
dc.contributor.authorPierce, Darren Johnen_ZA
dc.contributor.otherUniversity of Stellenbosch. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering.
dc.date.accessioned2008-01-16T10:02:17Zen_ZA
dc.date.accessioned2010-06-01T08:46:23Z
dc.date.available2008-01-16T10:02:17Zen_ZA
dc.date.available2010-06-01T08:46:23Z
dc.date.issued2007-03en_ZA
dc.descriptionThesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2007.
dc.description.abstractCooling tower rain zone performance characteristics such as the loss coefficient and the Merkel number are evaluated and simulated. To this end the influence of drop diameter and drop deformation on the velocity, path length and cooling of single water drops are investigated. Experimental drop size and pressure drop data over a counterflow rain zone are presented and the effect of drop deformation on the pressure drop is investigated using the experimental data and CFD. Using the experimental drop size data and CFD, the performance uncertainty produced by using the Rosin-Rammler drop distribution function as opposed to the discrete drop distribution data is investigated. CFD models are developed to investigate the feasibility of modelling rain zones by assuming a constant drop diameter and to establish which diameter definition is the most representative of a particular polydisperse drop distribution. These models were used to validate the correlations for the rain zone performance characteristics proposed in literature.en_ZA
dc.format.extent1314582 bytesen_ZA
dc.format.mimetypeapplication/pdfen_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/2338
dc.language.isoenen_ZA
dc.publisherStellenbosch : University of Stellenbosch
dc.rights.holderUniversity of Stellenbosch
dc.subjectDissertations -- Mechanical engineeringen
dc.subjectTheses -- Mechanical engineeringen
dc.subjectCooling towers
dc.subjectRosin-Rammler drop distributionen
dc.subjectRaindrops -- Evaluationen
dc.subject.otherMechanical and Mechatronic Engineeringen_ZA
dc.titleEvaluation and performance prediction of cooling tower rain zonesen_ZA
dc.typeThesisen_ZA
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