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were offeredwithCFC-11,CFC-12,R-500and HCFC-22as refrigerants. ipcc-wg1.unibe.ch ipcc-wg1.unibe.ch 美国、亚洲和欧洲还制造离心式冷却器,在 1993 年之前, 这些冷却 器用CFC-11、CFC-12、R-500和HCFC-22 作为制冷剂。 ipcc-wg1.unibe.ch ...
DEVELOPMENTS IN REFRIGERATED TRANSPORT INSULATION SINCE THE PHASE OUT OF CFC AND HCFC REFRIGERANTSUnder the Montreal Protocol in January 1996 many countries ceased production of CFC gases (chlorofluorocarbons). Then in January 2003 the use of interim HCFC gases (hydro chlorofluorocarbons) were...
更多例句>> 5) refrigerants 制冷剂 1. Calculation and analysis on isobaric specific heat for refrigerants; 制冷剂比定压热容的计算分析 2. Estimation study of isobaric heat capacity for refrigerants; 制冷剂比定压热容的推算理论研究 更多例句>> 6) refrigerant R134a 制冷剂R134a 例句>> 补充...
CFC & HCFC制冷剂无氟替换指引 R423A环保制冷剂 替换:氟利昂R12(FREON 12) 应用:用于直接替换现存的离心式冷水机组(中央空调)上使用的R12的一种新型环保制冷剂。 优点:提供简单、快速、高效的直接替换;HFC类制冷剂,ODP值为零;替换时只需将冷冻机油更换成酯类油(POE),而无需对系统进行额外冲洗;仍可继续使用现有...
逐步淘汰 HCFC 和 CFC 在上世纪上半叶,氯氟烃 (CFC) 以及氢氯氟烃 (HCFC) 的相继引入的确解决了一些重要的安全问题,但直到 1970 年代中期,人们才开始虑及这些物质的环境风险。现在,持续使用这些物质(尤其是 CFC)造成的严重后果日益明显,这一现象导致了全球性逐步淘汰协议《蒙特利尔议定书》的出炉。
This paper reports that forty-seven leaders from the air-conditioning and refrigeration industry recently met in the nation's capital for an update on the latest developments concerning the future availability of CFC and HCFC refrigerants. Leaders of major trade associations and technical societies were...
American Society of Heating, Refrigeration, and Air‐Conditioning Engineers (ASHRAE) envisaged natural and synthetic refrigerants (Synrefs) are under investigatio... S Dilshad,AR Kalair,N Khan - 《International Journal of Energy Research》 被引量: 0发表: 2020年 The Consumption of HCFC in refriger...
本标准适用于液态制冷剂中 CFC-11 和 HCFC-123 质量分数的测定,不适用于 CFC-11 和 HCFC-123纯度的测定。 当取样量为 0.5 g,CFC-11 和 HCFC-123 的方法检出限分别为 0.5%和 0.4%,测定下限分别为 2.0%和 1.6%。英文名称: Liquid refrigerants—Determination of CFC-11 and HCFC-123—Headspace/gas ...
We have investigated the global warming potential (GWP) of CFC-I I, CFC-12, and their replacements, HCFC-I23 and HFC-I34a, based on a life-cycle methodology for refrigeration. We have extended the definition of the total equivalent warming impact (TEWI), which considers the GWP (direct) ...