Burgos november 2014 notice this report was prepared as an account of work sponsored.
Low gwp refrigerant pdf.
Common low gwp refrigerants refrigerant name trade or common name global warming potential r 744 co2 1 r 290 propane 4 r 600a isobutane 5 r 1234yf hfo 1234yf 4 r 1234ze hfo 1234ze 1 r 152a hfc 152a 124.
Most often contain hfc 134a or r 404a although other hfc blends are also used e g r 407a r 407f r 507a while research on low gwp refrigerants is ongoing.
Hfo 1234ze is the only medium pressure ultra low gwp alternative without an efficiency tradeoff high efficiency at full load and extraordinarily high efficiency at part load conditions oil free avoids challenges refrigerant.
Temperature pressure density thermal capacity p h diagram t t t differences between low gwp refrigerants and hfcs t t t toxicity characteristics grades and limits for 3.
Refrigerant regulatory landscape low global warming potential gwp refrigerants including the new a2l safety category technical research and development informing the standards safety standard upgrades for flammable.
Research development roadmap for next generation low global warming potential refrigerants w.
Movable room air more.
Thermodynamic properties of low gwp refrigerant.
R410a and r134a are not being banned.
Why should i stop using them.
Refrigerant charges typically range from 1 45 lbs.