REFRIGERANTS MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS Refrigerant in a refrigeration system is like blood circulation in the human body. It causes cooling by latent heat of vaporization. Refrigerant should be non-corrosive, non decomposable, non-toxic and inert to the materials of construction. In the event of leakage, it must not chemically react with food…
REFRIGERANTS SHORT QUESTION ANSWERS CLASS NOTES Refrigerant is a working substance in refrigeration. There are many types of refrigerants. Each is for a certain specific purpose. Refrigerants ammonia, R-134a and air are in common use. Their selection depends upon many factors. It should have least ozone depletion and Global warming potential. An azeotrope forms from…
SPECIFIC REFRIGERANTS CLASS NOTES FOR MECHANICAL ENGINEERING Different refrigerants have different properties. Different applications require different refrigerants. Their selection is a compromise of properties for an application. Ammonia suits best for large scale cooling requirements. There is a prohibition on the manufacture and use of R-11 and R-12. These have high Ozone depletion & Global…
REFRIGERANTS CLASS NOTES FOR MECHANICAL ENGINEERING Refrigerant causes cooling in a refrigeration system. It flows in the refrigeration system like blood circulates in the human body. There are different refrigerants for different applications. For making their study and use simple, there is a nomenclature and numbering of refrigerants. It has to have desirable properties…