Options
Investigation of refrigerant pipe pressure drop and charge reduction of mobile air conditioning units with R1234yf
Citation Link: https://doi.org/10.15480/882.5027
Other Titles
Étude de la chute de pression du tuyau de réfrigérant et de la réduction de charge des unités de climatisation mobiles avec R1234yf
Publikationstyp
Journal Article
Date Issued
2023-02
Sprache
English
Author(s)
Institut
TORE-DOI
Volume
146
Start Page
442
End Page
451
Citation
International Journal of Refrigeration 146: 442-451 (2023-02-01)
Publisher DOI
Scopus ID
Publisher
Elsevier Science
In this study, the pressure drop of automotive refrigerant pipes with the refrigerant R1234yf is investigated in detail. For this purpose, 1D and 3D simulations are compared with respect to prediction accuracy using liquid lines from a production car. It is shown that for a combined approach of the methods a very good agreement with the measured values can be obtained, whereas simplified modeling of the line as a straight pipe of equal length significantly underestimates the experimental values. The transition pieces between the pipe and the hose are of particular importance, since they account for up to 85 % of the total pressure drop and therefore result in major errors if neglected. If hoses were eliminated, the lines could be designed smaller, resulting in a charge reduction of up to 56 %.
Subjects
Charge reduction
Liquid line
Mobile air conditioning
Pressure drop
R1234yf
DDC Class
600: Technik
Publication version
publishedVersion
Loading...
Name
1-s2.0-S0140700722004637.pdf
Size
1.2 MB
Format
Adobe PDF