R290 HP-Module for Electric Vehicles Rheinmetall - Division Power Systems

Format:

Book

Conference/Event

Author/Creator:

Pogorelov, Alexej, author.

Contributor:

Reimers, Thorsten

Conference Name:

CO2 Reduction for Transportation Systems Conference (2024-06-12 : Turin, Italy)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2024

Summary:

Within this work a compact automotive heat pump module prototype with the natural refrigerant R290 (propane) is presented. R290 is non-toxic, has a low global warming potential (GWP) of 3, is environmentally friendly and is not affected by PFAS restrictions. Furthermore, R290 has a superior efficiency compared to refrigerants like R1234yf and R134a, which makes it a promising alternative. A test setup is built to evaluate the performance of the prototype HP-module, which is charged with approximately 190g of refrigerant and reaches a cooling/heating capacity of approximately 11kW/16kW at the investigated conditions. In addition, a 1-D numerical tool for the calculation of steady state conditions is implemented in MATLAB/Simscape and validated by time-averaged test data. The objective of the numerical tool is to be able to quickly predict the pressure levels within the refrigerant loop in advance to testing, as the pressure levels of the HP-module are not directly controlled, but result from the operating conditions (id est, eCC speed, eXV position, coolant loop volume flow rates and inlet temperatures)

Notes:

Vendor supplied data

Publisher Number:

2024-37-0031

Access Restriction:

Restricted for use by site license