Pregled bibliografske jedinice broj: 1213878
Modular Data Center Direct Expansion HPAC Solutions – Application of R466A as Replacement for R410A
Modular Data Center Direct Expansion HPAC Solutions – Application of R466A as Replacement for R410A // International Refrigeration and Air Conditioning Conference: proceedings from 2022
West Lafayette (IN): Purdue University Libraries, 2022. 2342, 10 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 1213878 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Modular Data Center Direct Expansion HPAC
Solutions – Application of R466A as Replacement
for R410A
(Modular Data Center Direct Expansion HPAC Solutions
– Application of R466A as Replacement for R410A)
Autori
Janković, Zvonimir ; Sieres, Jaime ; Pavković, Branimir ; Barac, Antun
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
Purdue e-Pubs
Mjesto i datum
West Lafayette (IN), Sjedinjene Američke Države, 10.07.2022. - 14.07.2022
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
HPAC ; R410A, R466A ; Modular Data Center ; High Density cooling ; HAPC DX unit design
Sažetak
Direct expansion (DX) High Precision Air Conditioning (HPAC) cooling units for modular data centers operating with R410A are the focus of this article. The new potential long-term refrigerant R466A, as a replacement for R410A, for high density DX cooling units is analyzed. The steady state numerical model based on the test results of the R410A DX HPAC cooling unit is developed and validated for 5 steady state conditions. The model is used to simulate the unit HPAC DX to predict the thermodynamic conditions when the unit operates with R466A refrigerant, and the results were compared with R410A. The simulations were performed using the real boundary conditions to obtain results for the performance of the unit. The results show that the compressor produces between 11% and 14% higher refrigerant mass flow rates with R466A than with R410A. The EEV opening is between 2% and 5% higher with R466A than with R410A for the required superheat. Evaporating pressures are between 4.2% and 5.4% higher with R466A and condensing pressures are between 3.9% and 6.4% higher than with R410A. Cooling capacity and electrical power required for compressor work are higher for R410A than for R466A, a maximum of 4.5% and 8.1%, respectively. From a thermodynamic point of view, R466A is a very good substitute for R410A in data center cooling application.
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
