prikaz prve stranice dokumenta Rashladni sustavi na brodovima za prijevoz ukapljenog prirodnog plina
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undergraduate thesis
Rashladni sustavi na brodovima za prijevoz ukapljenog prirodnog plina
2022. urn:nbn:hr:162:650179
Knežević, Filip
University of Zadar
Maritime Department
Division of Maritime Engineering

Cite this document

Knežević, F. (2022). Rashladni sustavi na brodovima za prijevoz ukapljenog prirodnog plina (Undergraduate thesis). Zadar: University of Zadar. Retrieved from https://urn.nsk.hr/urn:nbn:hr:162:650179

Knežević, Filip. "Rashladni sustavi na brodovima za prijevoz ukapljenog prirodnog plina." Undergraduate thesis, University of Zadar, 2022. https://urn.nsk.hr/urn:nbn:hr:162:650179

Knežević, Filip. "Rashladni sustavi na brodovima za prijevoz ukapljenog prirodnog plina." Undergraduate thesis, University of Zadar, 2022. https://urn.nsk.hr/urn:nbn:hr:162:650179

Knežević, F. (2022). 'Rashladni sustavi na brodovima za prijevoz ukapljenog prirodnog plina', Undergraduate thesis, University of Zadar, accessed 30 November 2024, https://urn.nsk.hr/urn:nbn:hr:162:650179

Knežević F. Rashladni sustavi na brodovima za prijevoz ukapljenog prirodnog plina [Undergraduate thesis]. Zadar: University of Zadar; 2022 [cited 2024 November 30] Available at: https://urn.nsk.hr/urn:nbn:hr:162:650179

F. Knežević, "Rashladni sustavi na brodovima za prijevoz ukapljenog prirodnog plina", Undergraduate thesis, University of Zadar, Zadar, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:162:650179

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Metadata
TitleRashladni sustavi na brodovima za prijevoz ukapljenog prirodnog plina
Title (english)Refrigeration systems on ships for the transport of liquefied gas
AuthorFilip Knežević
MentorIvica Glavan (mentor)
MentorLuka Grbić (komentor)
Committee memberIvan Gospić (predsjednik povjerenstva)
Committee memberIvica Glavan (član povjerenstva)
Committee memberMarijan Gržan (član povjerenstva)
GranterUniversity of Zadar
(Maritime Department)
(Division of Maritime Engineering)
Zadar
Defense date and country2022-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Traffic and Transport Technology
Maritime and River Traffic
Abstract
Rashladni sustavi jako su važan dio brodova za prijevoz ukapljenog prirodnog plina. Parni rashladni uređaji koriste se za klimatizaciju, provijant i ostale stvari, te funkcioniraju uz pomoć tekućina, odnosno radnih tvari koje imaju nisku temperaturu isparavanja i prolaze kroz različite faze kružnog procesa. Sastavni elementi parnih rashladnih uređaja su: kompresor, kondenzator, ekspanzijski ventil i isparivač. Glavni zadatak rashladnih uređaja jest sniziti temperaturu ispod temperature okoline. Na tankerima za prijevoz prirodnog ukapljenog plina koriste se i sustavi za ponovno ukapljivanje isparenog plina. Da bi se prirodni plin ukapljio potrebno ga je ohladiti na -162 ℃, i to se postiže uz pomoć Braytonovog rashladnog procesa. Braytonov proces jest plinski rashladni proces koji sastoji od kruga isparenog plina i kruga radne tvari, odnosno rashladnog dušika. Višestupanjskom kompresijom s međuhlađenjem te pothlađivanjem i ekspandiranjem dušika u rashladnom krugu postiže se dovoljno niska temperatura za ponovno ukapljivanje isparenog plina.
Abstract (english)
Cooling devices are an important part of liquified natural gas tankers. Vapor refrigeration devices are used for air conditioning, proviant and other things, and their principle is based on low evaporation temperatures of liquids that go through different phases of the cooling cycle. The main parts of vapor refrigeration devices are compressor, condenser, expansion valve, evaporator. The main task of these cooling devices is to produce a temperature lower than the surrounding temperature. Reliquification devices are used on liquified gas carriers so that the boil off gas can be condensed again. In order to liquify natural gas it has to be cooled down to -162℃, that is managed by using the reversed Brayton cycle. The reversed Brayton process is an air refrigerant-based process containing the evaporated gas circle and the refrigerant nitrogen circle. The nitrogen is compressed in a multistage compressor with in between cooling, after compression it gets cooled down and then it expands to a temperature that is low enough to liquify natural gas.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:162:650179
Study programmeTitle: Naval Mechanical Engineering and Maritime Industry Technology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka brodostrojarstva i tehnologije pomorskog prometa (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka brodostrojarstva i tehnologije pomorskog prometa)
Type of resourceText
File originBorn digital
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Created on2022-10-17 12:34:43