Experimental evaluation of refrigerant mixtures as substitutes for CFC12 and R502 |
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| Authors: | R Camporese G Bigolaro S Bobbo G Cortella |
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| Affiliation: | Istituto per la Tecnica del Freddo, Consiglio Nazionale delle Ricerche Corso Stati Uniti, 4 - I 35100 Padova, Italy;Dipartimento di Energetica e Macchine, Universitá degli Studi di Udine Via delle Scienze, 208 - I 33100 Udine, Italy |
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| Abstract: | Several selected refrigerant mixtures are tested as potential short- and mid-term substitutes for CFC12 and R502. HCFC22 and some hydrocarbons are considered as components of retrofit mixtures. Their influence on the solubility of various lubricant oils is investigated by measuring critical solubility temperatures. The performance of the CFC12 and R502 refrigerants and of their proposed alternatives is compared by testing two different refrigerating units. |
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| Keywords: | refrigerant R12 R502 substitute mixture performance oil miscibility R22 R32 R125 R134a R143a R290 R270 |
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