HFO 1234yf 性能状况.ppt

VC Activity of HFO1234yf May 2009 I2 Confidential Content HFO1234yf specification Calorimeter performance System performance NVH test Durability test Summary 1. HFO1234yf specification May 2009 I4 parison with refrigerant characteristic HFO1234 yf specification GWP ( G lobal W arming P otential) ODP ( O zone D epletion P otential) Flammable Stability HFC134a CH 2 FCF 3 1300 0 Non-Flammable 14year HFO1234yf CH 2 =CFCF 340 Low-Flammable 2weeks F F HF HCC CH F FFF R134a 的臭氧消耗潜值为 0,但是 GWP (全球变暖潜值)高达 1300 多,而且在大气中的寿命也较长, 是京都协议确认逐步淘汰的制冷剂之一。在替换制冷剂研究领域,欧洲和美国走在前面,欧盟此前宣布: 2010 年起,在新车上淘汰 R134a, 采用 GWP<150 的制冷剂,并倾向于 CO2 制冷, 但 CO2 制冷为跨临界制冷,对压缩机和系统的其他部件要求很高,替换成本很高,而且在一些条件下应用能效不高。 May 2009 I5 Confidential P-h diagram Small refrigerating effect -25% High mass flow +15 ~ 20% HFO1234 yf specification Specific volume Capacity: -10% COP : -5% >>> R134a 1234yf 2. Calorimeter performance May 2009 I7 Confidential type Product number Displacement Cylinder number OEM DCS17E Variable piston Z0006496 7 Daimler DKS17DS Fix piston Z0006000 B 10 Chrysler DKV08R Rotary Z0004245 B 10(5vane) Nissan pressors specification May 2009 I8 Confidential Calorimeter performance DKV08R Cooling capacity OIL : Valeo200YF (for 1234yf) viscosity 16mm2/s ***@100degC SC=5degC SH=10degC -20% down at high load idle. Oil viscosity lower than current 200PG. May 2009 I9 Confidential Calorimeter performance DKV08R COP SC=5degC SH=10degC OIL : Valeo200YF (for 1234yf) viscosity 16mm2/s ***@100degC -14% down at high load idle. May 2009 I 10 Confidential Calorimeter performance DKS17DS SC=5degC SH=10degC Cooling Capacity OIL : Valeo100YF (for 1234yf) Capacity is less than -10% at idle.