Question

1. It is a component of a refrigeration system that has high thermal conductivity and interests with the refrigerant

2. The phase of the refrigerant at the inlet of the evaporator in an ideal Vapor compression refrigeration cycle is?

3. It is the type of stroke in an otto cycle where the piston is being pushed downward

4. This is a type of compressor which uses the piston motion for compression

Answer 1

Answer -

1. Evaporater and Condenser have high thermal conductivity. Refrigerant absorbs heat from the refrigerated space in the evaporater so the thermal conductivity of the evaporater material should be high. Similarly, refrigerent rejects heat to the cold fluid. So it should have high thermal conductivity.

2. In ideal vapour compression system, the refrigerent at the entry of the evaporater is in wet state.

3. in the Expansion stroke, in the Otto cycle, the piston is piushed downwards. It is pushed due to the expansion of the burnt fuel.

4. Reciprocating compresser uses the piston motion for compression. Piston encloses the gas to be compressed and due to its reciprocating motion, compression process is completed.