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6
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1
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Short note: Aircraft air refrigeration system- types and explain any one type in brief with sketch.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
0
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1
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1.7k
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Define ton of refrigeration. Name the different types of systems used for cooling of aircraft cabin.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
1
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23k
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Explain a Boot strap type aircraft refrigeration system with a neat schematic diagram and T-S diagram.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
1
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1
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15k
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Explain working of simple air refrigeration cycle and represent the same on T-S chart.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
0
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1
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2.4k
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Discuss the below statement $''$Refrigeration can be produced either by expansion of a gas or throttling of gas$''$.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
3
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1
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35k
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Draw the reversed carnot cycle on P-V and T-S diagrams and find out the expression for COP of the cycle. Discuss the factors which affect the COP of the cycle.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
2
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1
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1.9k
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Define Refrigeration and it$'$s applications.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
0
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1.8k
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Determine ideal efficiency of carnot engine and ideal COP of carnot refrigerator
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
0
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22k
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Derive the COP equation for the Carnot refrigeration cycle. Also write the practical difficulties with Carnot refrigeration system.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
0
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4.8k
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COP of the system.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
3
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22k
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State merits and demerits of an air refrigeration system.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
1
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24k
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Define ton of refrigeration. If the COP of a 1.5 TR window air conditioner is 3.3, calculate how much power will the compressor consume?
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
2
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1
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35k
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List the good properties of a refrigerant.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
0
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16k
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Compare flooded and dry expansion evaporators.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
1
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1
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56k
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What are the advantages of multistage compression?
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
2
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1
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15k
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Draw T-S and P-H diagram of sub-cooled and super heat vapour compression refrigeration cycle and name the processes.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
0
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1
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2.6k
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$''$Intercooling during multistaging compression is effective with $NH_3$ as refrigerant than $R_{12}''$. Comment.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
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2.6k
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find: i. Mass of air bled from cooling turbine to be used for regenerative cooling ii. Power required for maintaining cabin at required condition iii. C.O.P. of system
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
2
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1
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8.0k
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Write note on Designation of Refrigerant.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
7
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1
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25k
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What is the function of a flash inter-cooler? Why it is not preferred for R-12 refrigerant?
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
3
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1
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5.8k
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Discuss the static regain method for duct design
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
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4
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5.2k
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4
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Aspect ratio of rectangular duct is 7 and its equivalent circular duct diameter is 100 mm. The ratio of longer side of rectangular duct to the diameter of circular duct is 2.6.
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
0
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A refrigeration machine using R-12 as refrigerant operates between pressures 2.5 bar and 9 bar. The vapour entering the compressor is dry saturated and there is no subcooling in the condenser. If the
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
0
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15k
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A sample of moist air has a dry bulb temperature of 25C and a relative humidity of 50%. the barometric pressure is 740 mm of Hg. without using psychrometric chart, calculate:
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
0
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The following data are given for the space to be air conditioned: Outside air conditions = 40 C DBT and 50% RH,inside design conditions= 26 C DBT and 50% RH 50%, Apparatus Dew point = 10 C;
refrigeration and air conditioning updated 3.8 years ago by pedsangini276 • 4.8k
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