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SOLVED:A test on an open loop Brayton cycle gas turbine produced the following results: Net power output =180.5 hp Air mass flow rate =20.0 ×10^3 lbm / h Inlet air temperature =80.0^∘ F Inlet air pressure =14.5 psia Compressor exit pressure =195 psia Compressor isentropic efficiency =85.0 % Combustion chamber heat addition =4.00 ×10^6 Btu / h Using a cold ASC analysis and assuming k=1.40, determine a. The cycle thermal efficiency. b. The isentropic efficiency of the turbine.

SOLVED:A test on an open loop Brayton cycle gas turbine produced the following results: Net power output =180.5 hp Air mass flow rate =20.0 ×10^3 lbm / h Inlet air temperature =80.0^∘ F Inlet air pressure =14.5 psia Compressor exit pressure =195 psia Compressor isentropic efficiency =85.0 % Combustion chamber heat addition =4.00 ×10^6 Btu / h Using a cold ASC analysis and assuming k=1.40, determine a. The cycle thermal efficiency. b. The isentropic efficiency of the turbine.

2023年6月8日

$A large stationary Brayton-cycle gas-turbine power plant delivers a power output of 100000 hp to an electric generator. The minimum temperature in the cycle is 540 R, and the maximum temperature is 2900 R. The minimum pressure in the cycle is 1 atm, and the compressor pressure ratio is 14 to 1 . Calculate the power output of the turbine, the fraction of the turbine output required to drive the compressor, and the thermal efficiency of the cycle. | Numerade$

A large stationary Brayton-cycle gas-turbine power plant delivers a power output of 100000 hp to an electric generator. The minimum temperature in the cycle is 540 R, and the maximum temperature is 2900 R. The minimum pressure in the cycle is 1 atm, and the compressor pressure ratio is 14 to 1 . Calculate the power output of the turbine, the fraction of the turbine output required to drive the compressor, and the thermal efficiency of the cycle. | Numerade

2020年5月12日

$SOLVED: 5. A large stationary Brayton-cycle gas turbine power plant delivers a power output of 100 MW to an electric generator. The minimum temperature in the cycle is 300 K, and the maximum temperature is 1600 K. The minimum pressure in the cycle is 100 kPa, and the compressor pressure ratio is 14. The isentropic efficiencies of a compressor and a turbine are 90% and 95%, respectively Calculate the power output of the turbine. What fraction of the turbine output is required to drive the compres$

SOLVED: 5. A large stationary Brayton-cycle gas turbine power plant delivers a power output of 100 MW to an electric generator. The minimum temperature in the cycle is 300 K, and the maximum temperature is 1600 K. The minimum pressure in the cycle is 100 kPa, and the compressor pressure ratio is 14. The isentropic efficiencies of a compressor and a turbine are 90% and 95%, respectively Calculate the power output of the turbine. What fraction of the turbine output is required to drive the compres

2023年8月13日

$A large stationary Brayton-cycle gas turbine power plant delivers a power output of 100 MW to an electric generator. The minimum temperature in the cycle is 300 K, and the maximum temperature is 1600 K. The minimum pressure in the cycle is 100 kPa, and the compressor pressure ratio is 14 to 1 . Calculate the power output of the turbine. What fraction of the turbine output is required to drive the compressor? What is the thermal efficiency of the cycle? | Numerade$

A large stationary Brayton-cycle gas turbine power plant delivers a power output of 100 MW to an electric generator. The minimum temperature in the cycle is 300 K, and the maximum temperature is 1600 K. The minimum pressure in the cycle is 100 kPa, and the compressor pressure ratio is 14 to 1 . Calculate the power output of the turbine. What fraction of the turbine output is required to drive the compressor? What is the thermal efficiency of the cycle? | Numerade

2020年5月12日

An ideal air-standard regenerative Brayton cycle produces 10 MW of power. Operating data at principal states in the cycle are given in the table below. The states are numbered as in Fig. 9.14. Sketch the T-s diagram and determine (a) the mass flow rate of air, in kg / s. (b) the rate of heat transfer, in kW, to the working fluid passing through the combustor. (c) the thermal efficiency. | Numerade

An ideal air-standard regenerative Brayton cycle produces 10 MW of power. Operating data at principal states in the cycle are given in the table below. The states are numbered as in Fig. 9.14. Sketch the T-s diagram and determine (a) the mass flow rate of air, in kg / s. (b) the rate of heat transfer, in kW, to the working fluid passing through the combustor. (c) the thermal efficiency. | Numerade

2022年11月23日

A gas-turbine power plant operates on a simple Brayton cycle wi... | Filo

A gas-turbine power plant operates on a simple Brayton cycle wi... | Filo

已浏览 5648 次2023年11月7日

A gas-turbine power plant operates on the regenerative Brayton cycle between the pressure limits of 100 and 700 kPa. Air enters the compressor at 30^∘ C at a rate of 12.6 kg / s and leaves at 260^∘ C. It is then heated in a regenerator to 400^∘ C by the hot combustion gases leaving the turbine. A diesel fuel with a heating value of 42,000 kJ / kg is burned in the combustion chamber with a combustion efficiency of 97 percent. The combustion gases leave the combustion chamber at 871^∘ C and enter

A gas-turbine power plant operates on the regenerative Brayton cycle between the pressure limits of 100 and 700 kPa. Air enters the compressor at 30^∘ C at a rate of 12.6 kg / s and leaves at 260^∘ C. It is then heated in a regenerator to 400^∘ C by the hot combustion gases leaving the turbine. A diesel fuel with a heating value of 42,000 kJ / kg is burned in the combustion chamber with a combustion efficiency of 97 percent. The combustion gases leave the combustion chamber at 871^∘ C and enter

2020年5月12日

A stationary gas-turbine power plant operates on a simple ideal Brayton cycle with air as the working fluid. The air enters the compressor at 95 kPa and 290 K and the turbine at 760 kPa and 1100 K. Heat is transferred to air at a rate of 35,000 kJ / s. Determine the power delivered by this plant ( a ) assuming constant specific heats at room temperature and (b) accounting for the variation of specific heats with temperature. | Numerade

2021年2月11日

SOLVED:Consider a combined gas-steam power cycle The topping cycle is a simple Brayton cycle that has a pressure ratio of 7 . Air enters the compressor at 15^∘ C at a rate of 40 kg / s and the gas turbine at 950^∘ C. The bottoming cycle is a reheat Rankine cycle between the pressure limits of 6 MPa and 10 kPa. Steam is heated in a heat exchanger at a rate of 4.6 kg / s by the exhaust gases leaving the gas turbine, and the exhaust gases leave the heat exchanger at 200^∘ C. Steam leaves the high

2021年3月18日

a gas turbine power plant operating on an ideal brayton cycle has a pressure ratio of 8 the gas temperature is 300 k at the compressor inlet and 1300 k at the turbine inlet utilizing the air 97154

2022年5月2日

9-95 A gas-turbine power plant operates on the simple Brayton cycle between the pressure limits of 100 and 1600 kPa. The working fluid is air, which enters the compressor at 40^∘ C at a rate of 850 m^3 / min and leaves the turbine at 650^∘ C. Assuming a compressor isentropic efficiency of 85 percent and a turbine isentropic efficiency of 88 percent, determine (a) the net power output, (b) the back work ratio, and (c) the thermal efficiency. Use constant specific heats with cv=0.821 kJ / kg ·K,

2021年2月11日

PPT - Brayton cycle PowerPoint Presentation, free download - ID:6643269

已浏览 309 次2014年11月28日

SOLVED:A gas-turbine power plant operates on the simple Brayton… | Numerade

11 个月之前

Helium is used as the working fluid in a Brayton cycle with regeneration. The pressure ratio of the cycle is 8 the compressor inlet temperature is 300 K, and the turbine inlet temperature is 1800 K. The effectiveness of the regenerator is 75 percent. Determine the thermal efficiency and the required mass flow rate of helium for a net power output of 60 MW, assuming both the compressor and the turbine have an isentropic efficiency of (a) 100 percent and (b) 80 percent. | Numerade

2020年5月12日

SOLVED: A simple ideal Brayton cycle without regeneration is modified to incorporate multistage compression with intercooling and multistage expansion with reheating, without changing the pressure or temperature limits of the cycle. As a result of these two modifications, (a) Does the net work output increase, decrease, or remain the same? (b) Does the back work ratio increase, decrease, or remain the same? (c) Does the thermal efficiency increase, decrease, or remain the same? (d) Does the heat

2021年2月11日

A gas-turbine power plant operates on a modified Brayton cycle shown in the figure with an overall pressure ratio of 8 . Air enters the compressor at 0^∘ C and 100 kPa. The maximum cycle temperature is 1500 K. The compressor and the turbines are isentropic. The high-pressure turbine develops just enough power to run the compressor. Assume constant properties for air at 300 K with cv=0.718 kJ / kg ·K, cp=1.005 kJ / kg ·K, R=0.287 kJ / kg ·K, k=1.4 (a) Sketch the T-s diagram for the cycle. La

2021年2月11日

Consider an ideal Brayton cycle executed between the pressure limits of 1200 and 100 kPa and temperature limits of 20 and 1000^∘ C with argon as the working fluid. The net work output of the cycle is (a) 68 kJ / kg (b) 93 kJ / kg (c) 158 kJ / kg (d) 186 kJ / kg (e) 310 kJ / kg | Numerade

2021年2月11日

A Brayton cycle has a compression ratio of 15: 1 with a high temperature of 2900 R and the inlet at 520 R, 14 psia. Use cold air properties and find the specific heat transfer and specific net work output. | Numerade

2022年10月2日

A Brayton cycle with regeneration using air as the working fluid has a pressure ratio of 7 . The minimum and maximum temperatures in the cycle are 310 and 1150 K. Assuming an isentropic efficiency of 75 percent for the compressor and 82 percent for the turbine and an effectiveness of 65 percent for the regenerator, determine (a) the air temperature at the turbine exit, (b) the net work output, and (c) the thermal efficiency. Use variable specific heats. | Numerade

2021年2月11日

SOLVED: A gas-turbine plant operates on the regenerative Brayton cycle with two stages of reheating and two-stages of intercooling between the pressure limits of 100 and 1200 kPa. The working fluid is air. The air enters the first and the second stages of the compressor at 300 K and 350 K, respectively, and the first and the second stages of the turbine at 1400 K and 1300 K, respectively. Assuming both the compressor and the turbine have an isentropic efficiency of 80 percent and the regenerator

2020年5月12日

Air is used as the working fluid in a simple ideal Brayton cycle that has a pressure ratio of 12, a compressor inlet temperature of 300 K, and a turbine inlet temperature of 1000 K. Determine the required mass flow rate of air for a net power output of 70 MW, assuming both the compressor and the turbine have an isentropic efficiency of (a) 100 percent and (b) 85 percent. Assume constant specific heats at room temperature. | Numerade

A simple Brayton cycle using air as the working fluid has a pressure ratio of 8 . The minimum and maximum temperatures in the cycle are 310 and 1160 K. Assuming an isentropic efficiency of 75 percent for the compressor and 82 percent for the turbine, determine (a) the air temperature at the turbine exit, (b) the net work output, and (c) the thermal efficiency. | Numerade

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