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master's thesis
Dimenzioniranje regulacijskog ventila
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2017. urn:nbn:hr:235:260056
Krnić, Luka
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

Cite this document

Krnić, L. (2017). Dimenzioniranje regulacijskog ventila (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:260056

Krnić, Luka. "Dimenzioniranje regulacijskog ventila." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2017. https://urn.nsk.hr/urn:nbn:hr:235:260056

Krnić, Luka. "Dimenzioniranje regulacijskog ventila." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2017. https://urn.nsk.hr/urn:nbn:hr:235:260056

Krnić, L. (2017). 'Dimenzioniranje regulacijskog ventila', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 20 December 2024, https://urn.nsk.hr/urn:nbn:hr:235:260056

Krnić L. Dimenzioniranje regulacijskog ventila [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2017 [cited 2024 December 20] Available at: https://urn.nsk.hr/urn:nbn:hr:235:260056

L. Krnić, "Dimenzioniranje regulacijskog ventila", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:235:260056

Metadata
TitleDimenzioniranje regulacijskog ventila
Title (english)Control valve sizing
AuthorLuka Krnić
MentorIvica Galić (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2017-01-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Ventili su uređaji za regulaciju protoka fluida koji mogu djelomično ili potpuno zatvoriti prolaz fluida kroz cijev i važni su elementi upravljanja u procesnoj industriji jer utječu na procesne varijable. Regulacijski ventili pomicanjem zapornog elementa u smjeru toka ili suprotno smjeru toka održavaju protok, tlak, razinu i temperaturu u okviru željenog radnog raspona ili na određenoj radnoj točki. Regulacijski ventili su izvršni elementi koji se sastoje od tijela ventila, zapornog dijela, aktuatora koji zaporni dio pomiče u željenu poziciju i niza ostalih dijelova poput senzora, regulatora, prekidača i slično. U ovom diplomskom radu kratko su obrazloženi neki od tipičnih vrsta ventila koji se danas često koriste u regulacijske svrhe. Rekapitulirani su različiti režimi strujanja i utjecaj pojedinih varijabli na njih. Obrađen je koeficijent protoka kao jedan od najvažnijih parametara za vrednovanje ventila. Sukladno međunarodnom standardu IEC 60534-2-1 za dimenzioniranje ventila prezentirane su i pojašnjene standardne jednadžbe za dimenzioniranje ventila. Sukladno standardu IEC 60534-2-1 razrađen je algoritam za određivanje koeficijenta protoka standardnim jednadžbama prilikom dimenzioniranja regulacijskog ventila. Standardne jednadžbe su implementirane u programu „SMath Studio“ i tako pripremljene da je pri izračunu koeficijenta protoka omogućeno lako variranje ulaznih podataka to jest varijabli. Na takav način moguće je provesti relativno brzu, laku i standardiziranu analizu učinaka promjene bitnih procesnih varijabli na dimenzioniranje regulacijskih ventila.
Abstract (english)
Valves are the devices that control, regulate or direct the flow of a fluid. Control valves modulate flow, pressure, level or temperature by partially obstructing or opening the various passageways by trim elements and holding that process variable within a required working range or desired operating point. Control valve assembly is generally composed of the valve body, trim parts, actuator which moves trim and other parts like sensors, switches or similar. This master's thesis gives a short explanation of typical valves commonly used for regulation in industrial process applications. Fluid flow regimes and impact of some important variables are depicted too. Flow coefficient as one of the most important parameters for valve characterization is elaborated. According to the international standard for sizing the control valves IEC 60534-2-1 sizing equations for use with compressible and incompressible fluids are presented. Algorithm for valve sizing based on flow coefficient and standardized equations from IEC 60534-2-1 international standard is elaborated. Valve sizing procedure is implemented in mathematical “SMath Studio“ freeware and it enables simple, fast and efficient variations of input variables. According to that it is possible to undertake analysis based on standardized method and to size the control valve.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:260056
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2019-05-22 18:33:11