霍尼韦尔(Honeywell)近日公布了其用于新型中温商用制冷、冷水机组和热泵的新型低GWP值制冷剂——Solstice N15的相关细节，该制冷剂用于替代R134a。
据了解，Solstice N15被ASHRAE（美国采暖、制冷与空调工程师学会）认定为R515B，是一种A1级不可燃制冷剂，其GWP值仅为293。R515B由R1234ze（91.1%）和R227ea（8.9%）混合而成，具有零滑移和低排放温度，效率与R134a相当。
目前，R515B已经被丹佛斯公司（Danfoss）批准用于其新的涡轮增压TG490压缩机，并将应用于空气和水冷冷水机组。
R515B的组成成分——R227ea很少被用作制冷剂，因为其GWP值特气网高达3220，此处少量地添加它是为了抑制R1234ze的轻微可燃性。R227ea最初是用来取代CFC R114，作为灭火剂Halon 1301的零ODP替代品，它也被用于计量吸入器和一些泡沫吹制应用。
原文如下：
Honeywell has revealed details of its new lower GWP refrigerant replacement for R134a in new medium temperature commercial refrigeration, chillers and heat pumps.
Solstice N15, designated R515B by ASHRAE, is an A1 non-flammable refrigerant blend with a GWP of just 293 under AR4.
A blend of R1234ze (91.1%) and R227ea (8.9%), R515B is said to have zero glide and low discharge temperatures with an efficiency to match R134a.
R515B has already been approved for use by Danfoss in its new Turbocor TG490 compressor for air- and water-cooled chiller applications.
The blend’s component R227ea is little used as a refrigerant due to its very high GWP of 3220. It is used here in a small proportion to suppress the mild flammability of the low GWP HFO R1234ze. R227ea was originally introduced to replace the CFC R114 and as a zero ODP alternative for the fire suppressant Halon 1301. It is also used in metered dose inhalers and in some foam blowing applications.
文章来源：氟化工
