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master's thesis
Kaskadni rashladni uređaj za vrlo niske temperature hlađenja
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. urn:nbn:hr:235:830574
Badurina, Teodor
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

Badurina, T. (2022). Kaskadni rashladni uređaj za vrlo niske temperature hlađenja (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:830574

Badurina, Teodor. "Kaskadni rashladni uređaj za vrlo niske temperature hlađenja." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:830574

Badurina, Teodor. "Kaskadni rashladni uređaj za vrlo niske temperature hlađenja." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:830574

Badurina, T. (2022). 'Kaskadni rashladni uređaj za vrlo niske temperature hlađenja', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 04 August 2024, https://urn.nsk.hr/urn:nbn:hr:235:830574

Badurina T. Kaskadni rashladni uređaj za vrlo niske temperature hlađenja [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2022 [cited 2024 August 04] Available at: https://urn.nsk.hr/urn:nbn:hr:235:830574

T. Badurina, "Kaskadni rashladni uređaj za vrlo niske temperature hlađenja", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:235:830574

Metadata
TitleKaskadni rashladni uređaj za vrlo niske temperature hlađenja
Title (english)Ultra low temperature cascade refrigeration system
AuthorTeodor Badurina
MentorMarino Grozdek (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2022-07-20, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Process Energy Engineering
Abstract
Za potrebe skladištenja medicinskih preparata projektiran je rashladni spremnik s integriranim rashladnim sustavom. Potrebno je proračunati komponente za postizanje temperature u ULT hladnjaku od -90°C pi okolišnoj temperaturi od 20°C. Za postizanje traženih uvjeta u spremniku odabran je kaskadni sustav s radnom tvari R290 u gornjoj kaskadi te R170 u donjoj kaskadi. Rashladni sustav hladi zrak u spremniku koji se slobodnom konvekcijom rasprostranjuje u prostoru. Kondenzator rashladnog sustava hlađen je okolišnim zrakom. U sklopu rada napravljen je termodinamički proračun toplinskog opterećenja spremnika, termodinamički proračun pojedinih komponenti, poput kapilarnih cjevčica u svrhu određivanja njihovih dimenzija te dispozicijski crtež isparivača. Također napravljena je shema spajanja i regulacije.
Abstract (english)
A cooling tank with an integrated cooling system was designed for the storage of medical preparations. It is necessary to calculate the components to achieve a temperature in the ULT refrigerator of -90°C in an ambient temperature of 20°C. To achieve the required conditions in the tank, a cascade system was chosen with the refrigerant R290 in the upper cascade and R170 in the lower cascade. The cooling system cools the air in the tank, which spreads in the room by free convection. The condenser of the cooling system is cooled by ambient air. As part of the assignment, a thermodynamic calculation of the thermal load of the tank was made, a thermodynamic calculation of individual components, such as capillary tubes for the purpose of determining their dimensions, and a layout drawing of the evaporator. A connection and regulation scheme was also made.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:830574
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 on2022-07-14 20:50:19