Homework Answers
Add Answer to:
Air is the working fluid in a gas-turbine power system which rotates an electric generator. The...
1. A combined gas-steam power cycle uses a single gas turbine cycle for the air cycle...
1. A combined gas-steam power cycle uses a single gas turbine
cycle for the air cycle and a simple Rankine cycle for the water
vapor cycle. Atmospheric air enters the compressor at a rate of
88.2 lbm / s, at 14.7 psia and 59 ° F, and the maximum gas cycle
temperature is 1,742 ° F. The pressure ratio in the compressor is
7. The isentropic efficiency of both the compressor and the turbine
is 80%. Gas exits the heat...
4. A regenerative two-stage gas turbine with reheat operating on the standard-air Brayton cycle i...
4. A regenerative two-stage gas turbine with reheat operating on
the standard-air Brayton cycle is illustrated in Figure 3. In an
ideal Brayton cycle, the processes in the turbines and compressor
are adiabatic and isentropic, and the air flows through the
combustor and heat exchangers at constant pressure.
a) Show that the maximum total work output is
developed when the pressure ratio is the same across each stage, if
the temperature at the inlet to each turbine stage is the...
WGTC η.cn = 95% Gas turbine cycle (GTc) e,I = 100 kW Compressor Turbine Generator 께,- Combustor ...
wGTC η.cn = 95% Gas turbine cycle (GTc) e,I = 100 kW Compressor Turbine Generator 께,- Combustor Pi 100 kPa Regenerator Evaporator Turbine Generator Vapor turbine cycde (VTC) T, = T, + 20 K Condenser 10 Pump Saturated liquid A combined cycle plant operates with a topping gas turbine and a bottoming vapor turbine cycle. The working fluid in the vapor turbine cycle is water. The gas turbine cycle (GTC) electric generator produces 100kW of electric power For air use...
In a combustion turbine using natural gas as the fuel, air enters the compressor at 98...
In a combustion turbine using natural gas as the fuel, air enters the compressor at 98 kPa and 300 "K. The pressure ratio in the compressor is 8 and the isentropic efficiency of the compressor is 85%. The outlet temperature of the combustion chamber is 1200 K. The pressure drops by 4 percent in the combustion chamber. The exit pressure of the turbine is 102 kPa and the isentropic efficiency of the turbine is 90%. Find: a) The exit temperature...
Design a small gas turbine engine to produce 130kW of net power. Use an air-standard analysis...
Design a small gas turbine engine to produce 130kW of net power.
Use an air-standard analysis (const. gas prop.) and assume air
enters the compressor at 100kPa and
. the compressor pressure ratio is 10, the maximum cycle
temperature is
, and the cold air stream leaves the regenerator
cooler than the hot air stream at the inlet of the regenerator.
Assume a compressor isentropic efficiency of 87% and a turbine
isentropic efficiency of 95%. Determine the rates of heat...
Problem 1 (15 pts) A gas turbine cycle operates with a compressor pressure ratio of 12...
Problem 1 (15 pts) A gas turbine cycle operates with a compressor pressure ratio of 12 and a mass flow rate of 5.0 kg/s. Air enters the compressor at 1 bar, 290 K. The maximum cycle temperature is 1600 K. For the compressor, the isentropic efficiency is 85%, and for the turbine the isentropic efficiency is 90%. Using an air-standard analysis with air as ideal gas with constant specific heats, calculate: a) the volumetric flow rate of air entering the...
Air enters the compressor of a cold air-standard Brayton cycle with regeneration at 100 kPa, 300...
Air enters the compressor of a cold air-standard Brayton cycle with regeneration at 100 kPa, 300 K, with a volume flow rate of 5 m3/s. The compressor pressure ratio is 8, and the turbine inlet temperature is 1400 K. The turbine and compressor each have isentropic efficiencies of 80% and the regenerator effectiveness is 80%. For the air, k = 1.4 and the ambient temperature is T0 = 300 K. -Determine the thermal efficiency of the cycle. -determine the back...
Water is the working fluid in a Rankine cycle. Steam exits the steam generator at 1500 lbf/in.2 and 1100°F. Due to heat transfer and frictional effects in the line connecting the steam generator and...
Water is the working fluid in a Rankine cycle. Steam exits the steam generator at 1500 lbf/in.2 and 1100°F. Due to heat transfer and frictional effects in the line connecting the steam generator and turbine, the pressure and temperature at the turbine inlet are reduced to 1400 lbf/in.2 and 1000°F, respectively. Both the turbine and pump have isentropic efficiencies of 95%. Pressure at the condenser inlet is 2 lbf/ in. 2, but due to frictional effects the condensate exits the...
Design a small gas turbine engine to produce 150 kW of net power. Use an air-standard...
Design a small gas turbine engine to produce 150 kW of net power. Use an air-standard analysis (constant gas properties) and assume air enters the compressor at 100kPa and 20°C. The compressor pressure ratio is 8, the maximum cycle temperature is 800°C, and the cold air stream leaves the regenerator 10°C cooler than the hot air stream at the inlet of the regenerator. Assume a compressor isentropic efficiency of 87% and a turbine isentropic efficiency of 93%. Determine the rates...
Problem 1 A Brayton-cycle power plant takes in air at 100 kPa and 26.7°C. Compression in two stag...
please solve by exact analysis
Problem 1 A Brayton-cycle power plant takes in air at 100 kPa and 26.7°C. Compression in two stages with intercooling, and each stage has a pressure ratio of 2.38 and an efficiency of 84%, with intercooling to 26.7°C The maximum temperature of the cycle is 676.7°C Turbine efficiency is 82%. The turbine and compressor are assumed adiabatic. A regenerator heats the compressed air to 326.7°C before sending it to the combustor. Calculate (a) the back...
1. A combined gas-steam power cycle uses a single gas turbine
cycle for the air cycle and a simple Rankine cycle for the water
vapor cycle. Atmospheric air enters the compressor at a rate of
88.2 lbm / s, at 14.7 psia and 59 ° F, and the maximum gas cycle
temperature is 1,742 ° F. The pressure ratio in the compressor is
7. The isentropic efficiency of both the compressor and the turbine
is 80%. Gas exits the heat...
4. A regenerative two-stage gas turbine with reheat operating on
the standard-air Brayton cycle is illustrated in Figure 3. In an
ideal Brayton cycle, the processes in the turbines and compressor
are adiabatic and isentropic, and the air flows through the
combustor and heat exchangers at constant pressure.
a) Show that the maximum total work output is
developed when the pressure ratio is the same across each stage, if
the temperature at the inlet to each turbine stage is the...
wGTC η.cn = 95% Gas turbine cycle (GTc) e,I = 100 kW Compressor Turbine Generator 께,- Combustor Pi 100 kPa Regenerator Evaporator Turbine Generator Vapor turbine cycde (VTC) T, = T, + 20 K Condenser 10 Pump Saturated liquid A combined cycle plant operates with a topping gas turbine and a bottoming vapor turbine cycle. The working fluid in the vapor turbine cycle is water. The gas turbine cycle (GTC) electric generator produces 100kW of electric power For air use...
In a combustion turbine using natural gas as the fuel, air enters the compressor at 98 kPa and 300 "K. The pressure ratio in the compressor is 8 and the isentropic efficiency of the compressor is 85%. The outlet temperature of the combustion chamber is 1200 K. The pressure drops by 4 percent in the combustion chamber. The exit pressure of the turbine is 102 kPa and the isentropic efficiency of the turbine is 90%. Find: a) The exit temperature...
Design a small gas turbine engine to produce 130kW of net power.
Use an air-standard analysis (const. gas prop.) and assume air
enters the compressor at 100kPa and
. the compressor pressure ratio is 10, the maximum cycle
temperature is
, and the cold air stream leaves the regenerator
cooler than the hot air stream at the inlet of the regenerator.
Assume a compressor isentropic efficiency of 87% and a turbine
isentropic efficiency of 95%. Determine the rates of heat...
Problem 1 (15 pts) A gas turbine cycle operates with a compressor pressure ratio of 12 and a mass flow rate of 5.0 kg/s. Air enters the compressor at 1 bar, 290 K. The maximum cycle temperature is 1600 K. For the compressor, the isentropic efficiency is 85%, and for the turbine the isentropic efficiency is 90%. Using an air-standard analysis with air as ideal gas with constant specific heats, calculate: a) the volumetric flow rate of air entering the...
Water is the working fluid in a Rankine cycle. Steam exits the steam generator at 1500 lbf/in.2 and 1100°F. Due to heat transfer and frictional effects in the line connecting the steam generator and turbine, the pressure and temperature at the turbine inlet are reduced to 1400 lbf/in.2 and 1000°F, respectively. Both the turbine and pump have isentropic efficiencies of 95%. Pressure at the condenser inlet is 2 lbf/ in. 2, but due to frictional effects the condensate exits the...
Design a small gas turbine engine to produce 150 kW of net power. Use an air-standard analysis (constant gas properties) and assume air enters the compressor at 100kPa and 20°C. The compressor pressure ratio is 8, the maximum cycle temperature is 800°C, and the cold air stream leaves the regenerator 10°C cooler than the hot air stream at the inlet of the regenerator. Assume a compressor isentropic efficiency of 87% and a turbine isentropic efficiency of 93%. Determine the rates...
please solve by exact analysis
Problem 1 A Brayton-cycle power plant takes in air at 100 kPa and 26.7°C. Compression in two stages with intercooling, and each stage has a pressure ratio of 2.38 and an efficiency of 84%, with intercooling to 26.7°C The maximum temperature of the cycle is 676.7°C Turbine efficiency is 82%. The turbine and compressor are assumed adiabatic. A regenerator heats the compressed air to 326.7°C before sending it to the combustor. Calculate (a) the back...
Most questions answered within 3 hours.
-
4. Without doing any calculations, predict whether the observed
∆T would increase, decrease or remain the...
asked 11 minutes ago -
Based on the range, which of the following sets of scores has
the greatest variability? 3,...
asked 1 hour ago -
Ripples in a pond travel at a velocity of 3 m/s with one peak
passing a...
asked 1 hour ago -
A man stands on the roof of a building of height 13.0 mm and
throws a...
asked 1 hour ago -
The extent to which assets are financed by borrowed funds and
other liabilities is indicated by:...
asked 2 hours ago -
Explain in detail
Germany is the fifth largest economy
explain what goods and services Germany specializes...
asked 2 hours ago -
The density of platinum is 21.45 g/mL. If a cube of platinum
with a mass of...
asked 2 hours ago -
Accounts Receivable
Sales
A/R Posting
Extended Sales Invoice
Packing Slip
Compare invoice to packing slip 2...
asked 2 hours ago -
Michaella, age 23, is a full-time law student and is claimed by
her parents as a...
asked 2 hours ago -
Why are polymers not typically casted into products?
asked 2 hours ago -
When rolling a die 129 times, what is the probability of rolling
a 6 no more...
asked 3 hours ago -
4. A call option currently sells for $7.75. It has a strike
price of $85 and...
asked 3 hours ago