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An air compressor is operating at a steady state with a mass flow rate of 1.3...
Air enters a compressor operating at steady state at a pressure of 100 kPa, a temperature...
Air enters a compressor operating at steady state at a pressure of 100 kPa, a temperature of 290 K, and with a mass flow rate of 0.72 kg/s. At the exit, the pressure is 700 kPa and the temperature is 450 K. Heat transfer from the compressor to its surroundings occurs at a rate of 3 kW. Kinetic and potential energy changes can be ignored. Determine the power input to the compressor, in kW. Assume that the air is an...
A compressor is takes in air at an inlet pressure of P1 = 80 kPa and...
A compressor is takes in air at an inlet pressure of P1 = 80 kPa and an inlet temperature of T1 = 20oC and exhausts it at an outlet pressure of P2 =800 kPa and an outlet temperature of T1 = 200oC. Air flows through the compressor at a mass flow rate of m = 1 kg/s. Assume that the compressor is adiabatic. Find the power required to run the compressor. (Your answer will be in kW.)
An air standard Brayton cycle is operating at steady state. All processes are reversible. At compressor...
An air standard Brayton cycle is operating at steady state. All processes are reversible. At compressor inlet (state 1), the temperature and pressure are T1 300 K and P1-1 atm, respectively. Pressure ratio is rp-33. Maximum temperature of the cycle, which occurs at turbine inlet, is T3 = 1060 K. what is the thermal efficiency of the cycle? Note: Your answer should be between O and 1
An axial flow compressor operating at steady state draws air through an opening of 0.02 m2...
An axial flow compressor operating at steady state draws air through an opening of 0.02 m2 at a volumetric flow rate of 0.6m3/s, and compresses it from a pressure of 1 atm and a temperature of 17 °C to a pressure of 260 kPa, a velocity of 16 m/s and 144°C at the exit. Heat transfer from the compressor to the surroundings occurs at a rate of 3.2 kJ/kg of air flow. Using the ideal gas model and neglecting potential...
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1...
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1 m®/kg. Air exits the turbine at P2 = 3 bar and T2 = 450 °C. The volumetric flow rate of air at the inlet is 0.5 m/s. The power output on the shaft is 1900 kW. Determine: The pressure of air at the inlet (pa) in kPa [2 marks] b) The mass flow rate in kg/s [1 mark] c) Find the rate of heat...
Problem 2 20) Air enters a compressor operating at steady state at 280 K and exits...
Problem 2 20) Air enters a compressor operating at steady state at 280 K and exits at a higher pressure and a higher temperature of 1020 K. Specitic heat at constant pressure for air is a constant and equal to 1.003 kJkg K. The mass flow rate is 01 kg's. If the compressor consumes electric power 77 kW Neglect kinetic and potential energy effects and assume air is ideal gas. Find (1) The rate of heat transfer between the compressor...
P1) (50 points) - Air is compressed steadily by a 7.5-kW compressor. Air enters a compressor...
P1) (50 points) - Air is compressed steadily by a 7.5-kW compressor. Air enters a compressor at a pressure of 100 kPa, a temperature of 290 K and a velocity of 6 m/s through an inlet with an area of 0.005 m2. At the exit, the pressure is 700 kPa, the temperature 480 K and the velocity is 2 m/s. Determine: a) heat transfer that takes place between the compressor and the surrounding medium at 290 K, in kW and...
Air is compressed steadily by a reversible compressor from an inlet state of 100 kPa and...
Air is compressed steadily by a reversible compressor from an inlet state of 100 kPa and 300 K to an exit pressure of 900 kPa. if the volume flow rate = 1 m/sec Determine: the compressor power (kW) for isentropic compression with k = 1.4 Choose... the compressor power (kW) for polytropic compression with n = 1.3 Choose.. the compressor power (kW) for ideal two stage compression with intercooling with a polytropic exponent of 1.3 Choose... the compressor power (kW)...
A one stage axial air compressor consists of a rotor and a stator, it has a...
A one stage axial air compressor consists of a rotor and a stator, it has a mean diameter of Im for the rotor and a rotational speed of 7645 RPM. Furthermore: Mass flow rate is 50 kg/s .Inlet static temperature and pressure of Ti 276 K and Pi 85 kPa. .Inlet stagnation temperature and pressure of Toi 290 K and Poi 101.3 kPa. .Inlet absolute velocity C1 166.5 m/s Rotor exit static density (p2) equals to 1.3kg/m3 Axial component of...
A centrifugal air compressor used in a gas turbine receives air at 100 kPa and 300...
A centrifugal air compressor used in a gas turbine receives air at 100 kPa and 300 K and discharges it at 400 kPa and 500 K. The velocity of the compressor's outgoing air is 100 m / s. Ignoring the speed at the compressor inlet. Determine the power required to drive the compressor, in kW, if the mass flow is 15 kg / s. Take the Cp of air equal to 1 kJ / (kg K) and assume that there...
Air enters a compressor operating at steady state at a pressure of 100 kPa, a temperature of 290 K, and with a mass flow rate of 0.72 kg/s. At the exit, the pressure is 700 kPa and the temperature is 450 K. Heat transfer from the compressor to its surroundings occurs at a rate of 3 kW. Kinetic and potential energy changes can be ignored. Determine the power input to the compressor, in kW. Assume that the air is an...
An air standard Brayton cycle is operating at steady state. All processes are reversible. At compressor inlet (state 1), the temperature and pressure are T1 300 K and P1-1 atm, respectively. Pressure ratio is rp-33. Maximum temperature of the cycle, which occurs at turbine inlet, is T3 = 1060 K. what is the thermal efficiency of the cycle? Note: Your answer should be between O and 1
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1 m®/kg. Air exits the turbine at P2 = 3 bar and T2 = 450 °C. The volumetric flow rate of air at the inlet is 0.5 m/s. The power output on the shaft is 1900 kW. Determine: The pressure of air at the inlet (pa) in kPa [2 marks] b) The mass flow rate in kg/s [1 mark] c) Find the rate of heat...
Problem 2 20) Air enters a compressor operating at steady state at 280 K and exits at a higher pressure and a higher temperature of 1020 K. Specitic heat at constant pressure for air is a constant and equal to 1.003 kJkg K. The mass flow rate is 01 kg's. If the compressor consumes electric power 77 kW Neglect kinetic and potential energy effects and assume air is ideal gas. Find (1) The rate of heat transfer between the compressor...
P1) (50 points) - Air is compressed steadily by a 7.5-kW compressor. Air enters a compressor at a pressure of 100 kPa, a temperature of 290 K and a velocity of 6 m/s through an inlet with an area of 0.005 m2. At the exit, the pressure is 700 kPa, the temperature 480 K and the velocity is 2 m/s. Determine: a) heat transfer that takes place between the compressor and the surrounding medium at 290 K, in kW and...
Air is compressed steadily by a reversible compressor from an inlet state of 100 kPa and 300 K to an exit pressure of 900 kPa. if the volume flow rate = 1 m/sec Determine: the compressor power (kW) for isentropic compression with k = 1.4 Choose... the compressor power (kW) for polytropic compression with n = 1.3 Choose.. the compressor power (kW) for ideal two stage compression with intercooling with a polytropic exponent of 1.3 Choose... the compressor power (kW)...
A one stage axial air compressor consists of a rotor and a stator, it has a mean diameter of Im for the rotor and a rotational speed of 7645 RPM. Furthermore: Mass flow rate is 50 kg/s .Inlet static temperature and pressure of Ti 276 K and Pi 85 kPa. .Inlet stagnation temperature and pressure of Toi 290 K and Poi 101.3 kPa. .Inlet absolute velocity C1 166.5 m/s Rotor exit static density (p2) equals to 1.3kg/m3 Axial component of...
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