Design of medium pressure nozzles for cooling towers

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dc.contributor.advisorErens, P. J.en_ZA
dc.contributor.authorThacker, John Edwarden_ZA
dc.contributor.otherStellenbosch University. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering.en_ZA
dc.date.accessioned2012-08-27T11:37:03Z
dc.date.available2012-08-27T11:37:03Z
dc.date.issued1997-05en
dc.descriptionThesis (MScEng)--Stellenbosch University, 1997.en_ZA
dc.descriptionOne copy microfiche.en_ZA
dc.description.abstractENGLISH ABSTRACT: This project concerns the investigation of parameters controlling the behaviour of full-cone spray nozzles of the type used in cooling towers. In the present study large medium pressure hollow and full cone nozzles were investigated. A literature survey provided insight into the relationships between the nozzle dimensions and their spray characteristics, while equations found in the literature were used to correlate the experimental data. It was found that the spray cone angle of hollow cone nozzles could be manipulated by using rounded orifice outlets and this finding lead to the development of a uniquely profiled outlet that actually produces a square spray pattern. More experimental work was done to determine the relationship between the central jet of a full-cone nozzle and the other major nozzle dimensions. These results were then correlated and formulated into a set of guidelines for designing full-cone nozzles.en_ZA
dc.description.abstractAFRIKAANSE OPSOMMING: Hierdie projek behels 'n studie van belangrike parameters in volkegel sproeimondstukke soos gebruik in koeltorings. In die huidige studie word groot mediumdruk holkegel en volkegel sproeimondstukke ondersoek. 'n Literatuurstudie het die nodige insig verskaf omtrent die verwantskap tussen mondstuk dimensies en hul spuitkarakteristieke, terwyl vergelykings uit die literatuur gebruik is om die eksperimentele data te korreleer. Dit was gevind dat die sproeir kegelhoek van die holkegelmondstuk verander kon word deur gebruik te maak van geronde uitlate. Afleidings wat gemaak is het gely tot die ontwikkeling van 'n unieke geprofielde uitlaat wat 'n vierkantige sproeipatroon gelewer het. Bykomstige eksperimentele werk is gedoen om die verwantskap tussen die sentralestraal van 'n volkegelmondstuk en die ander hoof mondstukdimensies te bepaal. Die reultate is verwerk om riglyne vir die ontwerp van vierkantige patroon volkegel mondstukke daar te stel.af_ZA
dc.description.abstractDigitized at 300 dpi Colour PDF format (OCR), using ,KODAK i 1220 PLUS scanner. Digitised, Ricardo Davids on request from Corinna 01 October 2014en_ZA
dc.format.extent91 p. : ill.en_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/55448en
dc.language.isoen_ZAen
dc.publisherStellenbosch : Stellenbosch Universityen_ZA
dc.rights.holderStellenbosch Universityen_ZA
dc.subjectSpray nozzlesen_ZA
dc.subjectCooling towersen_ZA
dc.subjectNozzlesen_ZA
dc.subjectDissertations -- Mechanical engineeringen_ZA
dc.titleDesign of medium pressure nozzles for cooling towersen_ZA
dc.typeThesis
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