Thermodynamics Dual Cycle

  • Thread starter PauloBuzon
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  • #1

Homework Statement


Find the maximum temperature in deg C of the dual cycle with initial temperature of 30 deg c, compression ratio of 6, cut off ratio of 2.5 and the heat addition at constant volume process of 600 kj/kg.
y= 1.4
cp= 1.005 kj/kgk
cv=0.718 kj/kgk
rv=6
rc=2.5
Qadded @ Cv = 600kj/kg

Homework Equations


isentropic compression (1-2)
T2/T1=(V1/V2)^y-1 or T2/T1=(rv)^y-1

The Attempt at a Solution


process (1-2) isentropic

T1= 303k

solving t2

T2=T1 (rv)^k-1

T2 = 620.4 K

I dont know how to solve for P1 or P2 just stuck here
 

Answers and Replies

  • #2
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Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
 
  • #3
Thanks for the thread! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post? The more details the better.
hi thanks for replying .. its all good now i manage to solve it .
 

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