As seen in the figure, the vacuum pump provides air flow in an insulated pipe with a cross section of 45.7 mm2. The air moves along a straight line in a room with a pressure of 100,57 kPa and a temperature of 25,7 oC. If the pressure in section 1 is 98,57 kPa and the temperature in section 2 is 15,7 oC; This is Fanno flow. i) Calculate mass flow rate, ii) Calculate at section 1, flow velocity U1, density, Mach number Ma1, Re, f values iii) Calculate  at section 2, find the stopping pressure and temperature, Mach number Ma2, U2 velocity, density, mass flow rate iv) Calculate friction coefficient and force on the channel walls between section 1 and 2. Solve the problem by making the necessary assumptions. v) Calculate L1-2 pipe length

As seen in the figure, the vacuum pump provides air flow in an insulated pipe with a cross section of 45.7 mm². The air moves along a straight line in a room with a pressure of 100,57 kPa and a temperature of 25,7 ^oC. If the pressure in section 1 is 98,57 kPa and the temperature in section 2 is 15,7 ^oC; This is Fanno flow.

1. i) Calculate mass flow rate,
2. ii) Calculate at section 1, flow velocity U₁, density, Mach number Ma₁, Re, f values

iii) Calculate  at section 2, find the stopping pressure and temperature, Mach number Ma₂, U₂ velocity, density, mass flow rate

1. iv) Calculate friction coefficient and force on the channel walls between section 1 and 2. Solve the problem by making the necessary assumptions.
2. v) Calculate L_1-2 pipe length