Pregled bibliografske jedinice broj: 1213877
Compressor Speed, Expansion Valve Opening and Refrigerant Charge Influences on the Propane Unit Design
Compressor Speed, Expansion Valve Opening and Refrigerant Charge Influences on the Propane Unit Design // International Refrigeration and Air Conditioning Conference: proceedings from 2022
West Lafayette (IN): Purdue University Libraries, 2022. 2341, 10 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 1213877 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Compressor Speed, Expansion Valve Opening and Refrigerant Charge Influences on the Propane Unit Design
Autori
Janković, Zvonimir ; Pavković, Branimir ; Sieres, Jaime ; Živić, Marija
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
International Refrigeration and Air Conditioning Conference: proceedings from 2022
/ - West Lafayette (IN) : Purdue University Libraries, 2022
Skup
International Refrigeration and Air Conditioning Conference
Mjesto i datum
West Lafayette (IN), Sjedinjene Američke Države, 10.07.2022. - 14.07.2022
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
computational tool ; Propane R290 ; chiller ; refrigerant charge ; propane cooling unit design
Sažetak
This research involves the development of a computational tool for the design of a vapor- compression liquid-cooled chiller unit. It is suitable for the analysis of the unit design. The calculation tool was developed as a steady-state model with the following boundary conditions: compressor design and displacement, expansion valve nominal capacity, inlet temperatures and flow rates of the two secondary heat transfer fluids in the evaporator and condenser. The tool is designed to provide a better analysis of the thermodynamic process of compression refrigeration systems than using estimated condensing and evaporating temperatures for process analysis. The mathematical model is able to compare the application of different refrigerants and components of the refrigeration system. The model was developed as a numerical tool using the Engineering Equation Solver (EES), which includes a detailed model of the compression process and energy balance of the compressor, a model of the expansion valve to predict valve opening, and full correlations of heat transfer and pressure losses in all heat exchangers of the refrigeration cycle. The simulation model is validated with specific steady state experimental tests performed on a propane refrigeration machine. The case study is conducted to analyze the effects of refrigerant charge, subcooling level, and expansion valve openings on the performance of the propane unit.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Projekti:
NadSve-Sveučilište u Rijeci-uniri-tehnic-18-14 - Optimizacija dizalica topline i rashladnih sustava koji koriste radne tvari niskog utjecaja na globalno zatopljenje korištenjem numeričkih simulacija (Pavković, Branimir, NadSve - NATJEČAJ „UNIRI PROJEKTI“ Natječaj za dodjelu sredstava potpore znanstvenim istraživanjima na Sveučilištu u Rijeci za 2018. godinu - projekti iskusnih znanstvenika i umjetnika od 03. 09. 2018.) ( CroRIS)
Ustanove:
Tehnički fakultet, Rijeka,
Strojarski fakultet, Slavonski Brod
