Air enters an adiabatic compressor at 100 kPa and 17°C and leaves at 600 kPa and 211°C. The mass flow rate is 5 kg/min. Assume the specific heat is constant with \( C_p = 1.005 \, \text{kJ/kgK} \) and \( C_V = 0.718 \, \text{kJ/kgK} \).*In the question that follows, select the answer that is closest to the true value.*What is the power input to the compressor in units of kW?- ○ 16.25- ○ 32.25- ○ 5.20- ○ 10.40

Given data as per question Mass flow rate =5 kg/min The temperature at entry =170 c =290 k The…

Answered: Air enters an adiabatic compressor at…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A turbine, operating under steady-flow conditions, receives X1 kg of steam per hour (For X1 refer Table. 1). The steam enters the turbine at a velocity of 3000 m/min, an elevation of 5 m and a specific enthalpy of 2787 kJ/kg. It leaves the turbine at a velocity of 6000 m/min, an elevation of 1 m and a specific enthalpy of 2259 kJ/kg. Heat losses from the turbine to the surroundings amount to 16736 kJ/h. Determine the power output of the turbine.
8
1.Ten kilograms of gas are expanded under a constant pressure of 138 kPa from a volume of 8.5 m3to a volume of 17.3 m3. The gas is now expanded at constant temperature to 18.4 m3. The gas constant for this gas is 0.3 kJ/kg.K. Cp = 1.087 kJ/kg.K and Cv = 0.787 kJ/kg.K. Calculate the total change of entropy.
3. 12 kg of air per minute is delivered by a centrifugal air compressor. The inlet and outlet conditions of air are: V1 = 12 , P1 = 100 KPa , V1 = 0.5 - m3 and kg V2 = 904, P2 = 800 KPa , v2 = 0.14 m3 The increase in enthalpy of air passing kg KJ and heat loss to the surroundings is 700 kg KJ min through the compressor is 150 Find the work in KW.
Completely solve and box the final answers. Write legibly. 6. Calculate the power in Kw required to drive the second stage of a double-acting two-stage compressor that delivers air at 300 psi. The air enters at 30 ft3/sec with a condition of 30°C and 1.030 bar. The compressor is designed for minimum work with complete intercooling using PV1.30 = C.
Q4: A centrifugal fan for ventilation plant has inlet and outlet area of 0.14 m2 and 0.15 m2 respectively. The static pressure of the fan inlet is -120 Pa and the static pressure of the fan outlet is 200 Pa. The fan consume about 1 kw when deliver 2 m3/s. Determine; a- The total pressure of the fan inlet and outlet. b- Fan total pressure and fan static pressure. c- Total and static fan efficiency.
A mixing vessel initially contains 4133.3 lb of liquid fluid. The vessel is fitted with two inlet pipes, one delivering hot fluid at a mass flow rate of 0.768 lb/sec and the other delivering cold flu'd at a mass flow rate of 0.439 lb/sec. Fluid exits through a single pipe at a mass flow rate of 1.133 lb/sec. Calculate the amount of fluid, in lb, in the tank after 25 minutes.
Carbon dioxide gas is compressed at steady state from a pressure of 16 Ib;/in? and a temperature of 32°F to a pressure of 50 lb;/in? and a temperature of 120°F. The gas enters the compressor with a velocity of 30 ft/s and exits with a velocity of 80 ft/s. The mass flow rate is 3000 Ib/hr. The magnitude of the heat transfer rate from the compressor to its surroundings is 5% of the compressor power input. Use the ideal gas model with c, = 0.21 Btu/lb-°R and neglect potential energy effects. Determine the flow area at the inlet, in ft?, and the power required by the compressor to work, in horsepower.
A four-stage compressor works between limits of 1 bar and 120 bar. The indexof compression in each stage is 1.25, the temperature at the start ofcompression in each stage is 30 ˚C, and the intermediate pressure areselected such that work is divided equally among the stages. If the clearanceis negligible: Calculate:1 the intermediate pressure in each stage2 the temperatures at the end of each stage3 the mass flow rate in kg/h if work input is a unit kW
Read the problem carefully and provide complete solutions with derivation of formulas (integrals and derivatives). Complete solution and units please. Use two decimal plaas for final answers only. 3 min 5. A time- stage compressor receives air at 100 ft³ at 10 psia and the discharge pressure is pressure is 200 psia. If the temperature of the air received is 50 F, find the intercooler pressure, total compresser work and total heat rejected at the intercoolers Answer: 44.72 psia, 16. 31 hp, Bty 345.80 min
I need answer within 20 minutes please please with my best wishes
answer is provided and mass flow rate is 4.2 kg/sec

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