I've serach for almost a day now ,
just to search the formula to calculate the maximum pressure in the cycle
A very big thank you and appreciate for the help
What cycle specifically are you referring to, xto? Could you please provide a more complete problem description, and show us what you have tried so far?
i)isothermal compresssion from state 1 through a volumetric compression ration of 6 to state 2
ii) isobaric expansion from state 2 back to the initial volume thus reaching state 3
iii) isochoric cooling from state 3 back to the original pressure to reach state
it ask for the mass of air present and the maximum pressure in the cycle
Given
R=0.287 kj/kg K
Cp=1.005 Kj/KG K
i have done
pv=nrt
t=303K
p=1.2x0.9869
=1.1832
V=2.2x1000
=2.2x10^3
so (1.1832atm)(2.2x10^3L)
-----------------------
(1.005) (303K)
which the ans is 247.90g Air
then i use this formula
vm=(Qp/4 x Z)
so (2.2x10^3)(1.005)/4x(0.287)
which get
1925.958
i'm not sure if it's rite or not
please help , thx