The use of domestic refrigerant mixtures for the retrofit of refrigeration machines with centrifugal compressors

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Abstract

One of the urgent problems of refrigeration engineering is the conversion of refrigeration equipment to ozone-friendly refrigerants (retrofit). A special place in solving this problem is occupied by the reprofit of refrigeration machines with refrigeration centrifugal compressors operating on R12 refrigerant, which is prohibited for use.

About the authors

I. Ya Sukhomlinov

OJSC VNIIholodmash-Holding

Author for correspondence.
Email: info@eco-vector.com
Russian Federation

M. V. Golovin

OJSC VNIIholodmash-Holding

Email: info@eco-vector.com
Russian Federation

D. L. Slavutsky

OJSC VNIIholodmash-Holding

Email: info@eco-vector.com
Russian Federation

I. Yu. Saveleva

OJSC VNIIholodmash-Holding

Email: info@eco-vector.com
Russian Federation

B. D. Timofeev

IPE NASB

Email: info@eco-vector.com
Russian Federation

O. N. Belyaeva

IPE NASB

Email: info@eco-vector.com
Russian Federation

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2. Fig.1. Dependence of the relative cooling capacity of the THMV-4000-2 refrigerating machine (0.6R22/0.4R218 mixture) on the condensing temperature of the additional capacity when operating on R12 on the condensing temperature at a boiling point of 3 °C.

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3. Rice. Fig. 2. Dependence of the relative cooling capacity and effective power of the 10TXM V-4000-2 refrigerating machine (Ecohol-2 mixture) on the condensation temperature

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4. Rice. Fig. 3. Dependence of the cooling capacity of the 10TXM V-4000-2 refrigeration machine on the condensing temperature for various variants of the flow path (refrigerants R12, R134a and Ecohol-2): 1, 2, 3, 4, 5, 7 - numbers of options. Option 6 was not considered due to the impossibility of its implementation

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Copyright (c) 2022 Sukhomlinov I.Y., Golovin M.V., Slavutsky D.L., Saveleva I.Y., Timofeev B.D., Belyaeva O.N.

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