Air enters a compressor operating at steady state at 14.7 lbf/in.2 and 60°F and is compressed to a pressure of 150 lbf/in.2 As the air passes through the compressor, it is cooled at a rate of 10 Btu per lb of air flowing by water circulated through the compressor casing. The volumetric flow rate of the air at the inlet is 5000 ft3/min, and the power input to the compressor is 700 hp. The air behaves as an ideal gas, there is no stray heat transfer, and kinetic and potential effects are negligible. Determine (a) the mass flow rate of the air, lb/s, and (b) the temperature of the air at the compressor exit, in °F.

Q: Air flows steadily at the rate of 30 kg/min through an air compressor entering at a velocity of 7 m/…

A: Given,  Mass flow rate, m˙=30 kg/min Inlet velocity, v1=7 m/s Inlet pressure, p1=100 kPa Inlet…

Q: 2. An ideal gas undergoes a process from state 1 ( T1= 300 K, P1= 100 kPa) to state 2 ( T2= 600 K,…

A: Given, T1 = 300 K P1 = 100 kPa T2 = 600 K P2 = 500 kPa Cp = 1 kJ/kg-K Cv = 0.7 kJ/kg-K   Gas…

Q: Refrigerant 134a at p₁ = 30 lb/in², T₁ = 40°F enters a compressor operating at steady state with a…

A:

Q: Refrigerant 134a enters an insulated diffuser as a saturated vapor at 60oF with a velocity of 1000…

A: Given:-  Saturated Temperature= 60°F Velocity= 1000 Ft/s  Inlet Area = 1.4 in2  At exit pressure=…

Q: Carbon dioxide gas is compressed at steady state from a pressure of 20 lb/im and a temperature of…

A: The pressure of CO2 at inlet of compressor, P1 = 20 lbf/in^2The temperature of CO2 at inlet of…

Q: A pump is used to circulate hot water in a home heating system. Water enters the well-insulated pump…

A:

Q: Carbon dioxide gas is compressed at steady state from a pressure of 22 lbf/in² and a temperature of…

A:

Q: Carbon dioxide gas is compressed at steady state from a pressure of 16 lb/in² and a temperature of…

A:

Q: Refrigerant 134a at p1 = 30 lbf/in2, T1 = 40oF enters a compressor operating at steady state with a…

A: The Answer is below

Q: Refrigerant 134a at p1 = 30 lb/in², T1 = 40°F enters a compressor operating at steady state with a…

A:

Q: Water contained in a closed, rigid tank, initially at 100 lbf/in², 800°F, is cooled to a final state…

A:

Q: Steam enters a turbine with a pressure of 30 bar and a temperature of 400°C. Saturated vapor at…

A: Given : P1 = 30 bar T1 = 400°C T2 = 100° C (saturated vapor) WT = 532.2 kJ/kg To = 350 K

Q: Steam enters a turbine operating at steady state at 850oF and 450 lbf/in2 and leaves as a saturated…

A:

Q: Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°F with a velocity of 1400…

A:

Q: In turbochargers a turbine is directly connected to a compressor. The power harvested by the turbine…

A:

Q: Refrigerant 134a at p1 = 30 lbf/in2, T1 = 40oF enters a compressor operating at steady state with a…

A:

Q: Steam enters a mixing chamber at 100 kPa, V1= 40 m/s, and a specific volume of 0.4 m3/kg. Liquid…

A:

Q: In a piston cylinder system, fluid at 0.8 bar occupying 0.09 m3 is compressed reversibly to a…

A:

Q: Available energy of the air stream

A: Given; Pressure,p=5 barvelocity,v=50 m/stemperature,t=500 KSpecific heat, =1.005 kJ/KG-kconstant…

Q: A turbine running well at steady state produces 23 MW with a steam flow rate of 40 kg. Water vapor…

A: Pressure at the turbine entrance is 26.1 bar.

Q: Refrigerant 134a at p1 = 30 lbf/in2, T1 = 40oF enters a compressor operating at steady state with a…

A:

Q: R-134a enters a well-insulated diffuser as a saturated vapor at P, = 100 lbf/in2 with a velocity of…

A: Given: The pressure at the inlet of diffuser, P1 = 100 lbf/in^2 The velocity at the inlet of…

Q: Carbon dioxide gas is compressed at steady state from a pressure of 22 lb/in2 and a temperature of…

A:

Q: Carbon dioxide gas is compressed at steady state from a pressure of 22 lb-/in² and a temperature of…

A:

Q: Air flows through a nozzle. It enters at 20 bar and 1100°F and exits at 10 bar and 800°F. The inlet…

A:

Q: Carbon dioxide gas is compressed at steady state from a pressure of 20 lb/in² and a temperature of…

A:

Q: 5. A fluid enters a machine at 170 m/s, 800 kPa, and with a specific volume of 0.3 m/kg. The…

A:

Q: Refrigerant 134a at p₁ = 30 lb/in², T₁ = 40°F enters a compressor operating at steady state with a…

A:

Q: Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°F with a velocity of 1400…

A:

Q: Refrigerant 134a enters an insulated diffuser as a saturated vapor at 60°F with a velocity of 800…

A:

Q: A well-insulated turbine operating at steady state, produces 23 MW of power with a steam flow rate…

A:

Q: A pump is used to circulate hot water in a home heating system. Water enters the well-insulated pump…

A: Given Dataρ=60.58lb/ft3P2=90lbf/in2P1=14.7 lbf/in2C=1 btu/lb°R

Q: A pump is used to circulate hot water in a home heating system. Water enters the well-insulated pump…

A: The solution to the above problem is given below

Q: Water vapor enters a turbine at p1 = 5 bar, T1 = 500oC and exits at p2 = 1 bar.  The work developed…

A:

Q: m³ min A single-acting two-stage compressor delivers air at 16 bar. The volume flow rate of air…

A: Given data  P1= 1 bar V1= 17 m^3/min P2=16 bar. law pv^1.3 = c find the power required for first…

Q: Refrigerant 134a at p₁ = 30 lb/in², T₁ = 40°F enters a compressor operating at steady state with a…

A: Given DataP1=30 lbf/in2T1=40°F=499.67RP2=160 lbf/in2m˙=350 lbf /hrWc=-3.5hP

Q: A small nuclear reactor is cooled by passing liquid sodium liquid sodium out of the reactor at 2 bar…

A:

Q: A pump is used to circulate hot water in a home heating system. Water enters the well-insulated pump…

A: When the pressure varies, the volume of an incompressible substance remains constant. As a result,…

Q: Question 4 A steam turbine operates with an inlet condition of 30 bar, 400 °C, 160 m/s and an outlet…

A: Given data P1=30 bar, T1=400°C , V1=160m/s P2=0.7 bar, sat vapor, V2=100 m/s Mass flow rate=1200…

Q: Carbon dioxide gas is compressed at steady state from a pressure of 22 lb;/in? and a temperature of…

A:

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.