Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 18 Jan 2018 My Price 8.00

Gas Refrigeration Systems

a.  Air enters the compressor of a Brayton refrigeration cycle at 100 kPa, 260 K, and is compressed adiabatically to

300  kPa. Air  enters  the  turbine  at  300  kPa, 300  K, and

 

Gas Refrigeration Systems

10.43 Air enters the compressor of an ideal Brayton refrigeration cycle at 100 kPa, 300 K. The compressor pressure ratio is 3.75, and the temperature at the turbine inlet is 350 K.

Determine the

(a)   net work input, per unit mass of air flow, in kJ/kg.

(b)   refrigeration capacity, per unit mass of air flow, in kJ/kg.

(c)   coefficient of performance.

(d)   coefficient of performance of a Carnot refrigeration cycle operating between thermal reservoirs at TC 5 300 K and TH 5 350 K, respectively.

expands adiabatically to 100 kPa. For the cycle

(a)   determine the net work per unit mass of air flow, in kJ/kg, and the coefficient of performance if the compressor and turbine isentropic efficiencies are both 100%.

(b)   plot the net work per unit mass of air flow, in kJ/kg, and the coefficient of performance for equal compressor and turbine isentropic efficiencies ranging from 80 to 100%.

Answers

Maurice Tutor
(5)
Status NEW Posted 18 Jan 2018 07:01 PM My Price 8.00

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