A gas turbine air- standard cycle operates between a low pressure of 14.7 Psia and a...

A gas turbine air- standard cycle operates between a low pressure of 14.7 Psia and a high pressure of 60 Psia. The temperature of the gas at the inlet to the compressor and turbine are 60 and 1000 respectively. If 40,000 ft3 /min. of air enter the compressor and assuming k=1.41, compute:

a) The theoretical net power output, and

b) The air – standard thermal efficiency

Solutions

Expert Solution

samet mamat answered 8 months ago

Next > < Previous

Related Solutions

An ideal Rankine cycle operates with a turbine inlet pressure of 600 psia and a turbine...

An ideal Rankine cycle operates with a turbine inlet pressure of 600 psia and a turbine inlet temperature of 526 oF. The steam is isentropically expanded through the turbine to 15 psia as illustrated on the T-s diagram shown below. Using the Mollier diagram, determine the enthalpy at the turbine inlet, in BTU/lbm, under these operating conditions. State your answer in whole numbers.

An ideal Rankine cycle operates with a turbine inlet pressure of 900 psia and a turbine...

An ideal Rankine cycle operates with a turbine inlet pressure of 900 psia and a turbine inlet temperature of 572 oF. The steam is isentropically expanded through the turbine to 5 psia as illustrated on the T-s diagram shown below. Using the Mollier diagram, determine the percent moisture at the turbine outlet under these operating conditions. State your answer in whole numbers.

A gas turbine operates as a cold-air standard Brayton cycle. Air enetrs the compressor at 300K...

A gas turbine operates as a cold-air standard Brayton cycle. Air enetrs the compressor at 300K and 100kPa and is compressed to 700kPa. During the heat addition process in the combustor, the temperature of the air increases to 1000K. The turbine and compressor can be assumed to be operating isentropically. Evaluate specific heat at 300K. a. thermal efficiency of the cycle? b. net work of the cycle (kj/kg)? c. Back work ratio?

A steam Rankine cycle operates between the pressure limits of 1500 psia in the boiler and...

A steam Rankine cycle operates between the pressure limits of 1500 psia in the boiler and 1 psia in the condenser. The turbine inlet temperature is 800°F. The turbine isentropic efficiency is 90 percent, the pump losses are negligible, and the cycle is sized to produce 2500 kW of power. Calculate the mass flow rate through the boiler, the power produced by the turbine, the rate of heat supply in the boiler, and the thermal efficiency. Use steam tables

A gas-turbine power plant operates on the simple Brayton cycle between the pressure limits of 100 and 1200 kPa.

A gas-turbine power plant operates on the simple Brayton cycle between the pressure limits of 100 and 1200 kPa. The working ﬂuid is air, which enters the compressor at 300K at a rate of 150 m3/min and leaves the turbine at 773K. Using variable speciﬁc heats for air and assuming a compressor isentropic eﬃciency of 82 percent and a turbine isentropic eﬃciency of 88 percent, determine: (a) the net power output (b) the back work ratio (c) the thermal eﬃciency

In a marine gas turbine unit a high-pressure turbine drives the compressor, and a low-pressure turbine...

In a marine gas turbine unit a high-pressure turbine drives the compressor, and a low-pressure turbine drives the propeller through suitable gearing. The overall pressure ratio is 4/1, and the maximum temperature is 650⁰C. The isentropic efficiencies of the compressor, High Pressure turbine, and Low Pressure turbine are 0.8, 0.83 and 0.85 respectively, and the mechanical efficiency of both shafts is 98%. Calculate the pressure entering the Low Pressure turbine when the air intake conditions are 1.01 bar and 25⁰C....

A gas turbine operates with two stages of compression with an intercooler between the stages. Air...

A gas turbine operates with two stages of compression with an intercooler between the stages. Air enters the first stage at 100 kPa and 300 K. The pressure ratio across each compressor stage is 5 to 1 and each stage has an isentropic efficiency of 85%. Air exits the intercooler at 330 K. The maximum cycle temperature is 1500 K and the cycle has a single turbine stage that works isentropically. Calculate the mass flow rate of the air if...

A gas turbine operates with two stages of compression with an intercooler between the stages. Air...

1) A gas turbine operates on an ideal Joule cycle using air (γ = 1.4; R...

1) A gas turbine operates on an ideal Joule cycle using air (γ = 1.4; R = 0.287 kJ/kg K) as working fluid. Air enters the compressor at temperature of 27◦C and pressure of 1.25 bar and is compressed to 7.6 bar. When the maximum cycle temperature is limited to 800 oC, calculate, (i) the thermal efficiency and work ratio of the cycle (ii) the temperature of air exiting the turbine and the change in specific entropy of turbine process...

Thermodynamics problem: An engine operates on an air-standard Otto cycle. The pressure and temperature of the...

Thermodynamics problem: An engine operates on an air-standard Otto cycle. The pressure and temperature of the isentropic compression 100 kPa and 40 °C, respectively. The pressure at the end of compression is 2.0 MPa and the net work is 87,000 J/mol. Assume ideal air-standard cycle. Determine the following: pressure, volume, and temperature at end of each step. compression ratio. heat input and heat rejected per mol of working fluid. thermal efficiency of the cycle.

Subjects