A refrigerating system operating on reversed Brayton refrigeration cycle is used

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Question
A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with c_p = 1 kJ/kg)
Options
A. 25 kJ/kg
B. 50 kJ/kg
C. l00 kJ/kg
D. 125 kJ/kg

Correct Answer

50 kJ/kg

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Options
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A.
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Options
A. do not require bevelling
B. should be bevelled to a single-V or U-groove
C. should have a double-V or U-groove on one side
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Options
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C. the work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face
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