Question

Three kilograms of air within a piston-cylinder assembly
executes a Carnot power cycle. The isothermal expansion occurs at
700K from 1.25 bar to 0.85 bar; the air can be treated as an ideal
gas. If the cycle thermal efficiency is 65%,

- determine the temperature of the isothermal compression

- calculate the net work developed for the cycle in kJ

- draw the cycle on both Pv and Ts diagrams, labelling the types of
processes and including arrows to show direction; you do not need
to add values to the axes.

Answer #1

Any doubt comment before rate I will reply for sure....thanks

Your new engine design consists of a piston cylinder
arrangement. The engine operates with mostly air and a small amount
of fuel. The system undergoes a cycle. The initial Pressure and
temperature are p1= 1bar and T1= 27°C. The system undergoes a power
cycle consisting of the following process:
Process
1-2
constant volume to a pressure, P2 of 4 bars
Process
2-3
expansion of pv=constant
Process 3-1
constant-pressure compression
Draw the system and pv diagrams
If P2 is 4...

1) An ideal gas is contained in a
piston-cylinder device and undergoes a power cycle as follows:
1-2 isentropic compression from an initial
temperatureT1= 20 degree celsius with a compression ratio
r = 5
2-3 constant pressure heat addition 3-1 constant volume heat
rejection
The gas has constant specific heats with cv = 0.7
kJ/kg·K and R= 0.3 kJ/kg·K.
(a) Sketch the
P-v and T-s diagrams for the cycle.
(b) Determine the heat
and work interactions for each pro-cess, in...

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