第四代hfo-1234yf冷媒 进口汽车用品制冷剂 小罐低GWP雪种 340g 沈阳中大环新制冷技术有限公司4年 辽宁 沈阳市 ¥427.50 厂家直供1234yf汽车冷煤 R134汽车通用冷煤 中性英文包装制冷剂 广州宏泰制冷科技有限公司2年 回头率:0% 广东 广州市 ¥19.90
Currently, the refrigerant used in the automotive air conditioning system is R134 a which has a high global warming potential(GWP) value, so people are eager to find a good replacement for it. According to recent studies, R1234 yf is considered as one of the top candidates to replace R...
R1234yf瞬态喷雾冷却及过热度影响的实验研究
Gwp 2090 Appearance Colorless and Clear Odp 0 Packing Disposable Cylinder /Refillable Cylinder/ISO Tank Un No. 3159 Class No. 2.2 Transport Package Carton Specification 5kg Trademark SHINGCHEM Origin China HS Code 2903450000 Production C...
(GWP)and ser ious threat to the environment.An explorator y research was conducted on spray cooling by using R1 234yf as an alter n ative cryogen in clinical application due to its similar properties with R1 34a and low GW P value.The experimental result on surface heat transfer shows its...
flammability,toxicityandsolubility,plasticandrubbermaterialsofR1234yfandR134a,hasthereferencevaluetotherefrigerantreplace— ment. Keywords:R1234yt2refrigerant;automotiveairconditioning 1引言 目前汽车空调中广泛使用制冷剂R134a,但其全球气候变暖 潜能值GWP很高,达到1300。而全世界2011年汽车拥有量突破 ...
Gwp 2090 Appearance Colorless and Clear Odp 0 Packing Disposable Cylinder /Refillable Cylinder/ISO Tank Un No. 3159 Class No. 2.2 Transport Package Carton Specification 5kg Trademark SHINGCHEM Origin China HS Code 2903450000 Production Capacity 7000 Tons/Ye...
ItemSpecification ASHRAE #R-1234yf Refrigerant TypeMolecule Typical LubricantPOE ReplacesR-134A NotesStarting in January 2011, all new vehicle types must have an air conditioning refrigerant with a global warming potential (GWP) below 150. From 2017 on, this will apply to all new vehicles. This ...
所以具有低 GWP 值的 HFCs、HFOs 等制冷剂仍是研究热点,比如 R1234yf,R32,R161 等 [4] ,但是它们中绝大多数均具有可燃性,而且在发生泄漏遇到 40 点火源时会产生 CO,HF,COF 2 等有毒有害物质。特别是 HF 为剧毒物质,它的 10min,30min 阅读了该文档的用户还阅读了这些文档 ...
To achieve the low GWP values less than 150 (European F gas regulation value), the composition of R32 (difluoromethane; CH2F2, GWP = 677) should be less than 22 % in mass fraction (38 % in mole fraction). Therefore, we tried to obtain precisely the data of lower R32 composition less...