“直接替代”一词已经迁移到现在的R22阶段。目前,已有超过20种基于HFC的R22系统改造用制冷剂。然而,HFC不与矿物油混溶,而是通常需要使用合成润滑剂,如PAG、POE(多元醇酯)或PVE(聚乙烯醚)润滑剂。此外,R22系统改造用制冷剂型都是混合制冷剂,其在所有情况下的表现都不会与R22这样的单组分制冷剂相同。 一些制冷剂...
Drop-in replacement of R22 in heat pumps used for district heating - influence of equipment and property limitations. Int J Refrig 2001;24:660-75.Gabrielii C,Vamling L.Drop-in replacement of R-22 in heat pumps used for district heating- influence of equipment and property limitations....
Drop-in replacement of R22 in heat pumps used for district heating— influence of equipment and property limitations 来自 国家科技图书文献中心 喜欢 0 阅读量: 28 作者:Gabrielii,Cecilia,Vamling,Lennart 摘要: In Swedish district heating systems several large (25 MW) turbo-compressor driven heat ...
Drop-in tests were conducted using R290/R32 (31:69) mixture in an ice-cream maker for possible replacement of R-502 and R-404A. Optimum refrigerant charge and TEV opening were obtained through a series of experiments. At the standard outdoor condition (35℃ DT, 24℃ WT), the time requ...
R. Experimental study of R452B and R454B as drop-in replacement for R410A in split heat pumps having tube-fin and microchannel heat exchangers. Appl. Therm. Eng. 5(204), 117930 (2022). Article Google Scholar Chen, Y., Shen, C., Shi, M. & Peterson, G. P. Visualization study ...
Experimental results presented by Gabrielii and Vamling [1] for such a replacement show a severe drop in condenser performance in some applications. This drop can be as large as 70% compared to R22 at low duties. Several possible reasons for the performance drop were investigated, but no ...
1,1,1,2-Tetrafluoroethane (HFC-134a), which lacks ozone-depleting potential, has been selected as a replacement refrigerant for dichlorodifluoromethane (CF... MJ Olson,Stephen E. Surbrook Jr. - 《Toxicology Letters》 被引量: 26发表: 1991年 ...
Shen, B., Li, Z. & Gluesenkamp, K. R. Experimental study of R452B and R454B as drop-in replacement for R410A in split heat pumps having tube-fin and microchannel heat exchangers.Appl. Therm. Eng.5(204), 117930 (2022). ArticleGoogle Scholar ...
Modular Data Center Direct Expansion HPAC Solutions–Application of R466A as Replacement for R410A. In Proceedings of the 19th International Refrigeration and Air Conditioning Conference, West Lafayette, IN, USA, 10–14 July 2022. [Google Scholar] Sardeshpande, M.V.; Ranade, V.V. Two-phase ...
HCFC-22 replacement with drop-in and retrofit HFC refrigerants in a two-stage refrigeration plant for low temperature. Llopis R,Torrella E,Cabello R. et al. International Journal of Refrigeration . 2012Llopis, R., Torrella, E., Cabello, R., Sanchez, D., 2012. HCFC-22 replacement with ...