Exact(3)
Automakers are considering switching from the current refrigerant, a hydrofluorocarbon compound called R-134a, to a less-carbon-intensive refrigerant, R-152a, which has much less environmental impact.
Because of the safety concerns, Germany's Federal Motor Transport Authority approved the new models for sale with the current refrigerant, a position that escalated the matter from a disagreement over technology to a political dispute.
An outlier is HFO-1234yf whash hattractedted global demand due to its GWP of 4 compared to 1,430 for the current refrigerant standard HFC-134a.
Similar(57)
NRDC and other groups have petitioned EPA that this program creates an "in with the new, out with the old" policy where the current refrigerants used in air conditioners and refrigerators are replaced with refrigerants that are less potent at causing climate change.
The specific suction volume is 1.8 m3/kg LNG with the current mixed refrigerant composition.
As expected, the performance of current refrigerants falls below the Pareto front limits.
Rapid growth in air conditioning threatens to swamp out the marginal climate benefits of replacing current refrigerants with HFCs.
Owing to the growing concerns about the relatively high global warming potential (GWP) of current refrigerants, a serious effort is in progress to find lower-GWP substitutes.
The paper concludes that most of the current anxiety with refrigerant selections is unwarranted.
The current research on refrigerant injection techniques falls into two categories: system level research and component level research.
From the currently accepted refrigerants, refrigerants R123 and R245fc, and some hydrocarbons meet these requirements.
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