The operating pressure for refrigerating units using R-12 as a refrigerant is

More Questions from Heat Transfer, Refrigeration and Air Conditioning

• The super-heating in a refrigeration cycle
• The C.O.P. of a Carnot refrigerator in winter will be __________ as compared to C.O.P. in summer.
• The thermostatic expansion valve operates on the changes in the
• According to Prevost's theory of exchanges, every body irrespective of its temperature continuously emit heat radiations to the surrounding bodies and at the same time receives heat radiations from the surrounding bodies.
• The superheated vapour region, in a pressure enthalpy chart, is represented by the space
• In a saturated air-water vapour mixture, the
• The freezing point of R-12 is
• The capillary tube is not used in large capacity refrigeration systems because
• The thermal diffusivity for gases is generally __________ those for liquids.
• The alignment circle is marked on the psychrometric chart at

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