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$5$G

$25$

$(4$pts$)$ Problem $1$: a$)$ Write Down Clausius & Kelvin Statements of The $2$nd Law!

b$)$ Determine the specific volume of superheated water vapor at $15$ MPa and $3500$ C using:

i$.$ the ideal$-$gas equation, ii$)$ generalized compressibility chart iii$)$ the steam tables. Determine the errors.

c$)$LIST The Best Insulation Material for The Following:

Your House $...$ & Industrial Furnace: $.......$

$(4$pts$)$ Problem $2$:

An ideal gas refrigeration cycle with with three stages of compression with intercooling using air as the working fluid is considered. The COP of this system is to be determined.

Assumptions $1$ Steady operating conditions exist. $2$ Air is an ideal gas with constant specific heats. $3$ Kinetic and potential energy changes are negligible.

Properties The properties of air at room temperature are $c_p=1\mathrm{.}005k\frac{J}{k}g*K$ and $k=1\mathrm{.}4($Table A$-2$a$).$

$(4$pts$)$ Problem $3$: a$)$ Steam at $0\mathrm{.}4$MPa,$3000C,$ enters an adiabatic nozzle with a low velocity OF $10\frac{m}{s}$ and.

Templat... Elements Camera $...$ Brand Uploads Projects