BRAYTON
問題一覧
1
A gas turbine working on air standard Brayton cycle has air enter into the compressor at atmospheric condition and 22^{\circ}C. The pressure ratio is 9 and the maximum temperature in the cycle is 1077°C. Compute for the cycle efficiency per kg of air in percent.
46.62 %
2
In a gas turbine unit, air enters the combustion chamber at 550 kPa, 227°C and 43 m/s.. The products of combustion leave the combustor at 511 kPa, 1004°C and 140 m/s. Liquid fuel enters with heating value of 43,000 kJ/kg. For fuel-air ratio of 0.0229, what is the combustor efficiency of the unit in percent ?
79 %
3
Air enters the combustion chamber of a gas turbine unit at 550 kPa, 227°C and 43 m/s. The products of combustion leave the combustor at 517 kPa, 1007°C and 140 m/s. Liquid fuel enters with a heating value of 43,000 k1/kg. The combustor efficiency is 95%. What is the air-fuel ratio?
44.95
4
Air enters the compressor of a gas turbine at 100 kPa and 300 K with a volume flow rate of 5.81 m³/s. The compressor pressure ratio is 10 and its isentropic efficiency is 85%. At the inlet to the turbine, the pressure is 950 kPa and the temperature is 1400 K. The turbine has an isentropic efficiency of 88% and the exit pressure is 100 kPa. On the basis of an air-standard analysis, what is the thermal efficiency of the cycle in percent?
31.19 %
5
What is the thermal efficiency of an air-standard Brayton cycle if the pressure ratio is 10.
48.21 %
6
In a simple gas turbine plant working on ideal constant pressure cycle, In is taken into the compressor at 1 bar, 16^{\circ}C and delivered at 5.4 bar. If the temperature at turbine inlet is 700°C. Calculate the ideal thermal efficiency? Take k=1.4
38.23 %
7
Air is drawn into a gas turbine working on the constant pressure cycle at 1 bar 21°C and compressed to 5.7 bar. The temperature at the end of heat supply is 680°C. Taking expansion and compression to be adiabatic where C = 0.718 kJ/kg-K, C = 1.055 kJ/kg-K, calculate the heat energy supplied per
kg at constant pressure.
472 kJ/kg
8
What is the thermal efficiency of an air-standard Brayton cylce if the air enters and leaves the turbine at 1000 K and 550 K respectively?
44.99 %
9
There are required 2200 kW net from a gas turbine unit for pumping of crude oil. Air enters the compressor section at 100 kPa, 280 K, the pressure ratio rp 10. The turbine section receives the hot gases at 1,100 K. Assume the closed Brayton cycle and determine the required air flow.
8.1 kg/s
10
In an air-standard Bryton cycle, the compressor receives air at 101.325 kPa, 21^{\circ}C and it leaves at 600 kPa at the rate of 4 kg/s. Determine the turbine work if the temperature of the air entering the turbine is 1000°C.
2041 kW
11
The net power output of an air-standard Brayton cycle is 200 kW. Air enters the compressor at 32C and leaves the high-temperature heat exchanger at 800°C. What is the mass flow rate of air if it leaves the turbine at 350C.
.87 kg/s
12
The compressor inlet air temperature in a gas turbine plant is 99C Calculate the compressor air exit temperature if it requires 400 kJ/kg of work.
497 C
13
In an air-standard Brayton cycle air enters the compressor at 101.325 kPa and 27C Determine the network if the maximum temperature is 1000°C and the pressure ratio is 9.
333.46 kJ/kg
14
What is the efficiency of the compressor in a gas turbine plant if the compressor power is 300 kW. Power input is 400 kW.
75 %
15
In an air-standard Brayton cycle the inlet temperature and pressure are 20^{\circ}C and 101.325 kPa. The turbine inlet conditions are 1200 kPa and 900°C. Determine the air flow rate if the turbine produces 12 MW.
20.08 kg/s
16
A gas turbine power plant operating on the Brayton cycle delivers 15 MW to a standby electric generator. What is the mass flow rate and the volume flow rate of air if the minimum and maximum pressures are 100 kPa and 500 kPa respectively, and temperatures of 20°C and 1000°C
31.76 kg/s
17
An ideal gas turbine operates with a pressure ratio of 10 and the energy input in the high temperature heat exchanger is 300 kW. Calculate the air flow rate for a temperature limits of 30°C and 1200C.
0.42 kg/s
FLUIDS MACHINERIES
FLUIDS MACHINERIES
Miggy Elivera · 26問 · 1年前FLUIDS MACHINERIES
FLUIDS MACHINERIES
26問 • 1年前REFRI
REFRI
Miggy Elivera · 75問 · 1年前REFRI
REFRI
75問 • 1年前COMBUSTION DUAL
COMBUSTION DUAL
Miggy Elivera · 9問 · 1年前COMBUSTION DUAL
COMBUSTION DUAL
9問 • 1年前DRB
DRB
Miggy Elivera · 14問 · 1年前DRB
DRB
14問 • 1年前COMPRESSORS
COMPRESSORS
Miggy Elivera · 12問 · 1年前COMPRESSORS
COMPRESSORS
12問 • 1年前問題一覧
1
A gas turbine working on air standard Brayton cycle has air enter into the compressor at atmospheric condition and 22^{\circ}C. The pressure ratio is 9 and the maximum temperature in the cycle is 1077°C. Compute for the cycle efficiency per kg of air in percent.
46.62 %
2
In a gas turbine unit, air enters the combustion chamber at 550 kPa, 227°C and 43 m/s.. The products of combustion leave the combustor at 511 kPa, 1004°C and 140 m/s. Liquid fuel enters with heating value of 43,000 kJ/kg. For fuel-air ratio of 0.0229, what is the combustor efficiency of the unit in percent ?
79 %
3
Air enters the combustion chamber of a gas turbine unit at 550 kPa, 227°C and 43 m/s. The products of combustion leave the combustor at 517 kPa, 1007°C and 140 m/s. Liquid fuel enters with a heating value of 43,000 k1/kg. The combustor efficiency is 95%. What is the air-fuel ratio?
44.95
4
Air enters the compressor of a gas turbine at 100 kPa and 300 K with a volume flow rate of 5.81 m³/s. The compressor pressure ratio is 10 and its isentropic efficiency is 85%. At the inlet to the turbine, the pressure is 950 kPa and the temperature is 1400 K. The turbine has an isentropic efficiency of 88% and the exit pressure is 100 kPa. On the basis of an air-standard analysis, what is the thermal efficiency of the cycle in percent?
31.19 %
5
What is the thermal efficiency of an air-standard Brayton cycle if the pressure ratio is 10.
48.21 %
6
In a simple gas turbine plant working on ideal constant pressure cycle, In is taken into the compressor at 1 bar, 16^{\circ}C and delivered at 5.4 bar. If the temperature at turbine inlet is 700°C. Calculate the ideal thermal efficiency? Take k=1.4
38.23 %
7
Air is drawn into a gas turbine working on the constant pressure cycle at 1 bar 21°C and compressed to 5.7 bar. The temperature at the end of heat supply is 680°C. Taking expansion and compression to be adiabatic where C = 0.718 kJ/kg-K, C = 1.055 kJ/kg-K, calculate the heat energy supplied per
kg at constant pressure.
472 kJ/kg
8
What is the thermal efficiency of an air-standard Brayton cylce if the air enters and leaves the turbine at 1000 K and 550 K respectively?
44.99 %
9
There are required 2200 kW net from a gas turbine unit for pumping of crude oil. Air enters the compressor section at 100 kPa, 280 K, the pressure ratio rp 10. The turbine section receives the hot gases at 1,100 K. Assume the closed Brayton cycle and determine the required air flow.
8.1 kg/s
10
In an air-standard Bryton cycle, the compressor receives air at 101.325 kPa, 21^{\circ}C and it leaves at 600 kPa at the rate of 4 kg/s. Determine the turbine work if the temperature of the air entering the turbine is 1000°C.
2041 kW
11
The net power output of an air-standard Brayton cycle is 200 kW. Air enters the compressor at 32C and leaves the high-temperature heat exchanger at 800°C. What is the mass flow rate of air if it leaves the turbine at 350C.
.87 kg/s
12
The compressor inlet air temperature in a gas turbine plant is 99C Calculate the compressor air exit temperature if it requires 400 kJ/kg of work.
497 C
13
In an air-standard Brayton cycle air enters the compressor at 101.325 kPa and 27C Determine the network if the maximum temperature is 1000°C and the pressure ratio is 9.
333.46 kJ/kg
14
What is the efficiency of the compressor in a gas turbine plant if the compressor power is 300 kW. Power input is 400 kW.
75 %
15
In an air-standard Brayton cycle the inlet temperature and pressure are 20^{\circ}C and 101.325 kPa. The turbine inlet conditions are 1200 kPa and 900°C. Determine the air flow rate if the turbine produces 12 MW.
20.08 kg/s
16
A gas turbine power plant operating on the Brayton cycle delivers 15 MW to a standby electric generator. What is the mass flow rate and the volume flow rate of air if the minimum and maximum pressures are 100 kPa and 500 kPa respectively, and temperatures of 20°C and 1000°C
31.76 kg/s
17
An ideal gas turbine operates with a pressure ratio of 10 and the energy input in the high temperature heat exchanger is 300 kW. Calculate the air flow rate for a temperature limits of 30°C and 1200C.
0.42 kg/s