Reciprocatin compressor - , Mechanical Engineering

Reciprocatin Compressor. It is taken in use to compressor gases. (kE2  - kE1) = 0, (pE2  - pE1) = 0

q1-2  - w1-2 = (h2  - h1) + 0 + 0 - q1-2  - (-w1-2) = h2  - h1

w1-2 = q1-2  + (h2  - h1)

Heat gets rejected and work is done on system.

789_Reciprocatin Compressor -.png

Dirrerent Cases of Sfee

Sfee

1. Boiler

q = h2  - h1

2. Condenser

q = h1  - h2

3. Refrigeration or Evaporator

q = h1  - h2

4. Nozzle

V 2/2 - V 2/2 = h  - h

5. Turbine

W1-2  = h1 - h2; WD by the system due to decrease in enthalpy

6. Rotary compressor

W1-2 = h2 - h1; WD by the system due to increae in enthalpy

7. Reciprocating Compressor

W1-2  = q1-2  + (h2  - h1)

8. Diffuser

q - w = (h2 - h1) + ½( V22  -V 2)

 

Posted Date: 10/15/2012 2:50:59 AM | Location : United States







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