Past Year Questions: Heat Pumps And Cycles Notes | EduRev

Thermodynamics

Mechanical Engineering : Past Year Questions: Heat Pumps And Cycles Notes | EduRev

The document Past Year Questions: Heat Pumps And Cycles Notes | EduRev is a part of the Mechanical Engineering Course Thermodynamics.
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Question 1:Clearance volume of a reciprocating compressor is 100 ml, and the volume of the cylinder at bottom dead centre is 1.0 litre. The clearance ratio of the compressor is

Question 2:An industrial heat pump operates between the temperatures of 27°C and -13°C. The rates of heat addition and heat rejection are 750 W and 1000 W, respectively. The COP for the heat pump is

Question 3:A vapour absorption refrigeration system is a heat pump with three thermal reservoirs as shown in the figure. A refrigeration effect of 100 W is required at 250 K when the heat source available is at 400 K. Heat rejection occurs at 300 K. The minimum value of heat required (in W) is
Past Year Questions: Heat Pumps And Cycles Notes | EduRev

Question 4:The thermodynamic cycle shown in figure (T-s diagram) indicates
Past Year Questions: Heat Pumps And Cycles Notes | EduRev

Question 5:A heat engine having an efficiency of 70% is used to drive a refrigerator having a coefficient of performance of 5. The energy absorbed from low temperature reservoir by the refrigerator for each kJ of energy absorbed from high temperature source by the engine is

Question 6:A thin layer of water in a field is formed after a farmer has watered it. The ambient air conditions are: temp. 20°C and relative humidity 5%. An extract of steam tables is given below.
Past Year Questions: Heat Pumps And Cycles Notes | EduRev
Neglecting the heat transfer between the water and the ground, the water temperature in the field after phase equilibrium is reached equals


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