Turbopumpa vodovodnog sustava

master's thesis

• Title (english): Turbopump for water supply system
• Author: Ivan Grgurić
• Mentor: Zvonimir Guzović (mentor)
• Mentor: Željko Tuković (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2015-01-23, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Process Energy Engineering

Abstract

U ovom radu proveden je hidraulički proračun važnijih dijelova pumpe namijenjene za dobavu vode u vodovodnom sustavu. Ukratko su prezentirana osnovna teorijska i eksperimentalna znanja iz područja turbopumpi. Postupak hidrauličkog proračuna detaljno je objašnjen riječima, formulama i dijagramima toka u drugom poglavlju ovog rada. Zbog iterativne prirode proračuna za njegovu provedbu koristio se programski jezik "Python". Jedan dio koda proračuna, prikazan je u prilogu ovog rada. Dimenzije dobivene hidrauličkim proračunom iskorištene su za izradu tehničkih crteža samih dijelova te su isti priloženi u radu. Hidrauličke karakteristike radnog kola i difuzora pumpe provjerene su numeričkom simulacijom u programskom paketu "Fluent". Za simulaciju radnog kola i difuzora korištena je metoda diskretizacije drugog reda točnosti. Kako bi simulacija bila čim vjernija stvarnosti korištena je pomična mreža u predjelu radnog kola (takozvana "sliding mesh" mreža). Rezultati numeričke simulacije prikazani su te analizirani u posljednjem poglavlju diplomskog rada. Rezultati numeričke simulacije pokazuju da dijelovi pumpe dobiveni provedenim hidrauličkim proračunom zadovoljavaju tražene parametre.

Abstract (english)

This thesis deals with hydraulic calculation of important parts of the water supply pumps. In the first part basic theoretical and experimental knowledge in the field of turbopumps is presented. The hydraulic calculation procedure is explained in detail in the second chapter. The "Python" programming language was used for the calculation due to calculation's iterative nature. One part of the calculating code is presented in the appendix of this thesis. Dimensions obtained by hydraulic calculation were used in engineering (technical) drawings of the parts which are included in the thesis. Hydraulic characteristics of pump impeller and diffuser were investigated by using numerical simulation software "Fluent". Second order accurate discretization method was used for simulation of pump impeller and diffuser. In order to get a more realistic simulation the "sliding mesh" technique has been applied. Results of numerical simulation are presented and analysed in the last chapter. Results of the numerical simulation show that parts of the pump obtained by hydraulic calculation satisfy all required parameters.

• Keywords: proracun pumpe; centrifugalna pumpa; RDF; simulacija; pomicna mreza
• Keywords (english): pump calculation; centrifugal pump; CFD; simulation; sliding mesh
• Language: croatian
• URN:NBN: urn:nbn:hr:235:957711
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 12:30:00