58,300 kg/hr of steam is being throttled in a turbogenerator at 6.5 MPa and 500 °C and leaves at 0.0220 MPa. The following are the given efficiencies: indicated engine efficiency = 84% mechanical efficiency = 86% generator efficiency = 88% Calculate the following: a) the shaft work in kW ( Answer: b) the horsepower output of the generator.,- Answer:

58,300 kg/hr of steam is being throttled in a turbogenerator at 6.5 MPa and 500 °C and leaves at 0.0220 MPa. The following are the given efficiencies: indicated engine efficiency = 84% mechanical efficiency = 86% generator efficiency = 88% Calculate the following: a) the shaft work in kW ( Answer: b) the horsepower output of the generator.,- Answer:

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Air enters the compressor of a regenerative gasturbine engine at 310 K and 100 kPa, where it is compressed to 900 kPa and 650 K. The regenerator has an effectiveness of 80 percent, and the air enters the turbine at 1400 K. For a turbine efficiency of 90 percent, determine the thermal efficiency. Assume variable specific heats for air.
Pls. answer thank you! The following performance data were generated by a gas turbine having intercooling: LP compressor inlet conditions of 14.7 psia and 520’’R: LP compressor isentropic discharge temperature, 743.8 R. compressor isentropic efficiency. 78 percent; HP.compressor inlet temperature, S20 degree R: HP compressor isentropic discharge temperature, 743.8 R. HP compressor isentropic efficiency, 82%; turbine inlet temperature, 2000R; and turbine isentropic efficiency, 90%, Calculate the net cycle work Btu/lb.
A gas turbine cycle with a stage of reheat and regeneration operates under the conditions given below, as illustrated in the figure. The turbine efficiencies are 86%, and the compressor efficiency is 81%. Furthermore, the work output of the high-pressure turbine is just enough to drive the compressor. Determine the pressure at which the reheater operates. T1 = 1300 K, T6 = 3000 K, P1 = 450 kPa, P6 = 100 kPa
Write legibly so i can understand 3. The turbine section of a Brayton cycle gas turbine receives hot compressed air at 150 psia and 2100 o R, expands it to 15 psia and develops a gross output of 15,000 HP. Air enters the compressor at 500 R. Determine: d.) thermal efficiency, e) mean effective pressure (psia)
For a given actual Rankine Cycle, the actual turbine work serves as the input in determining the isentropic turbine efficiency. True or False
Based on a gas turbine with superheat and intercooling, determine: 1) The thermal efficiency (ƞterm), in %. Use the expression ƞterm= 1 –(qL/ qH)2) How does gas turbine intercooling influence thermal efficiency?3) How and why? It is said that the gas turbine cycle with intercooling, reheating and regeneration is close to the Ericsson cycle.
The efficiency of a gas turbine is much larger than that of a steam turbine since Question 4 options: the exhaust temperature is lower. the exhaust temperature is higher. the operating temperature is higher. the operating temperature is lower.
A 3 Megawatt steam power plant operates at a steam engine pressure of 220 psia, 550 °F and at exhayst pressure of 5 psia. The steam consumption is 62,700 lb/hr. Calculate the indicated engine efficiency if the combined electrical and mechanical efficiency is 70%
A power plant operating on a Rankine cycle has steam entering the turbine at 500 °C and 2 MPa. The turbine and pump efficiencies are 85 and 90 percent, respectively. If the water enters the pump at 10 kPa at a rate of 162,000 kg/hr, calculate the (a) actual turbine power, (b) actual pump power, (c) actual heat added to the water in the boiler, (d) actual cycle thermal efficiency, and (e) actual condition of steam leaving the turbine.
In an air standard gas turbine cycle, air at 14.5 psia and 70 F is first compressed to 80 psia in a compressor of 82 percent efficiency. The hot air leaving the combustion chamber at 1250 F is expanded back to 14.5 psia in a turbine of 85 percent efficiency. If a regenerator is inserted into the cycle to heat the air leaving the compressor to 650 F. (a) determine the thermal efficiency of the cycle. (b) determine the effectiveness of the regenerator. Show complete solution on a paper.
In a real turbine, the entropy of the steam will increase somewhat. How will this affect the percentages of liquid and gas in the cycle? How will the efficiency be affected?
Air enters the compressor of a regenerative gas-turbine engine at 310 K and 100 kPa, where it is compressed to 900 kPa and 650 K. The regenerator has an effectiveness of 80 percent, and the air enters the turbine at 1400 K. For a turbine efficiency of 90 percent, determine (a) the amount of heat transfer in the regenerator and (b) the thermal efficiency. Assume variable specific heats for air.