Download Previous Year Diploma Paper of REFRIGERATION AND AIR CONDITIONING RAC 5th /Mech/5321/Feb 2021 Diploma Paper
REFRIGERATION AND AIR CONDITIONING 5th Sem/Mech./5321/Feb 2021
                SECTION-A
Q2. Attempt any Three questions.                                  5×6=3
i. Explain the effect of sub-cooling with the help of p-h diagram.
ii. When used as refrigerant, state the properties of the following:
iii. Carbon Dioxide- CO2 (R-744)(b) Ammonia-NH3 (R-717)
iv. Explain the working of flood evaporator with the help of a neat sketch.
v. Write comparison between water cooled condenser and air cooled condenser?
vi. Write the advantages of vapour absorption system over vapour compression system
vii. Define: a) Percentage Humidity or Degree of Saturation b) Latent Heat and Its Types
                   SECTION-C
Q3. Attempt any one question.                            1×10=10
a. What do you mean by effective temperature? Explain the factors which affect the effective temperature.
b. Describe briefly i) Cooling dehumidification ii) Infiltration
c. Draw the PV and TS diagram of Bell Coleman Cycle and derive an expression of its COP.
d. Describe briefly the principle and working of a vapour compression system.
Explain the effect of sub-cooling with the help of p-h diagram.
When used as refrigerant, state the properties of the following:
Carbon Dioxide- CO2 (R-744)(b) Ammonia-NH3 (R-717)
Working of flood evaporatorÂ
Write comparison between water cooled condenser and air cooled condenser
Advantages of vapour absorption system over vapour compression system
a) Percentage Humidity or Degree of Saturation b) Latent Heat and Its Types
Automotive Material 3rd Sem Exam/Auto/3893/Feb 2021 Diploma Paper Click Here
Effective temperature
factors which affect the effective temperature.
i) Cooling dehumidification
ii) Infiltration
PV and TS diagram of Bell Coleman Cycle and derive an expression of its COP.
Principle and working of a vapour compression system.
Automotive Material 3rd Sem Exam/Auto/3893/Feb 2021 Diploma Paper Contact Us
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