Use EES software to solve the following problem:

Produced energy in a solar power plant can be saved by two energy storage systems of

PHES and CAES as follows. Determine the output power for each system and compare

them:

A$)$ Using a pumped hydroelectric system $($PHES$)$ with charging capacity of $50m\frac{3}{s}$ with a

pump with $80\%$ efficiency to a reservoir which is $(400+YZ)$ meter above. Electromotor used

for pumping has an efficiency of $93\%$ and operates $5$ hours per day. In the discharging

mode, a generator is coupled to the hydroturbine operating $8$ hours$/$day$.$ Exchanging

performance of the system is $(70+Z)\%$ and pressure losses at both charging and discharging is

assumed to be $5\%.$

B$)$ Compressed air system $($CAES$)$ through compressing the air at $15oC$ and $100$kPa pressure

up to $7$Mpa. The compressed air then is stored in an underground reservoir. In order to

increase the air temperature to $1050$ degree at the turbine inlet, a combustion chamber is

used with capacity of $(2200+YZ)k\frac{g}{h}r$ fuel with $HV=49M\frac{J}{k}g.$ Isentropic efficiency of gas

turbine is $80\%$ and for the compressor, it is $75\%.$ operating period is $8$ hours to generate

power.

$\{$:$=1000\frac{kg}{m^2},C_p=1\mathrm{.}05\frac{kJ}{kg}*K),k=1\mathrm{.}4$

$YZ$ is the last two digit numbers of your

student number, respectively.