Simultaneous Visual and Calorimetric Measurements of R11, R123, and R123/Alkylbenzene Nucleate Flow Boiling.

摘要

The paper presents a comparison of calorimetric and visual measurements of horizontal nucleate flow boiling of four fluids: (1) trichlorofluoromethane (R11), (2) its proposed replacement, the alternative refrigerant 1,1-dichloro-2,2,2-trifluoroethane (R123), (3) a R123/0.5% weight alkylbenzene lubricant mixture, and (4) a R123/2% weight alkylbenzene lubricant mixture; the nominal kinematic viscosity of the lubricant was 53 sq micrometer/s (280 SUS) at 313.15 K.