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Solutions5 - Problem 4.199 Given: Compressed air bottle...

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Problem 4.199 [3] Given: Compressed air bottle Find: Rate of temperature change Solution: Basic equations: Continuity; First Law of Thermodynamics for a CV Assumptions: 1) Adiabatic 2) No work 3) Neglect KE 4) Uniform properties at exit 5) Ideal gas From continuity t M CV m exit + 0 = where m exit is the mass flow rate at the exit (Note: Software does not allow a dot!) t M CV m exit = From the 1st law 0 t M u d u p ρ + m exit + = u t M M t u + u p ρ + m exit + = Hence um exit () Mc v dT dt + exit
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Solutions5 - Problem 4.199 Given: Compressed air bottle...

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