This paper describes the comparison of the total equivalent warming impact (TEWI) of R744 and R134a mobile a/c systems. TEWI calculations were performed using experimental results obtained at typical ...

The Valeo R744 system – based on CO2 – was recently tested on a demonstration vehicle by automobile experts at the SAE Alternate Refrigerant Symposium in Phoenix, USA and successfully ...

-- Visteon's latest application-ready R744 climate system consumes up to 25 percent less fuel than conventional R134a systems and enables a reduction of CO2 tailpipe emissions of up to 7g/km while ...