a) [4] Find the work for Turbine stage 1, in kJ/kgb) [4] Find the work for Turbine stage 2, in kJ/kgc) [4] Find the exergetic efficiency for stage 1d) [4] Find the exergetic efficiency for stage 2e) [4] Find the overall exergetic efficiency7.115 Figure P7.115 and the accompanying table provide steady-state operating data for a two-stage steam turbine. Stray heattransfer and the effects of motion and gravity are negligible.For each turbine stage, determine the work developed, in kJper kg of steam flowing, and the exergetic turbine efficiency.For the overall two-stage turbine, devise and evaluate anexergetic efficiency. Let T, = 298 K, po = 1 atm.StateT(°C)p(bar)h(kJ/kg)s(kJ/kg · K)155010035006.75533020.16.878309024973(x = 93.55%)0.57174T2 = 330°CP2 = 20.1 barT = 550°CP = 100 barPowerX3 = 93.55%-3 P3=0.5 bar

The accompanying table provides steady-state operating data for a two-stage steam turbine. Steady…

Answered: a) [4] Find the work for Turbine stage…

a) [4] Find the work for Turbine stage 1, in kJ/kg b) [4] Find the work for Turbine stage 2, in kJ/kg c) [4] Find the exergetic efficiency for stage 1 d) [4] Find the exergetic efficiency for stage 2

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

Q: During a steam generator performance test, the following datawere recorded:Fuel Data: Coal mass flow rate = 2.5 kg/s; HVC = 32.5 MJ/kgSteam Data: Pressure = 13 bar; quality = 99% dry; mass flow rate =25kg/sFeed water data: saturated at 50oC.Calculate the boiler efficiency
The Preliminary audit taken by an energy manager indicates that the daily energy consumption per hours (with 8 hours / day shift) is distributes as follows: Fuel 1: 500 Kgs, Fuel 2: 900 Kgs, Fuel 3: 820 Kg with calorific value as fuel 1: 30000Kj/kg, Fuel 2: 42000 Kj.Kg, Fuel 3: 50000 kj/Kg. The Cost of the fuel as fuel 1: Rs 30/Kg, Fuel 2: Rs. 90/ Kg, Fuel 3: Rs 50/Kg. The Production Out put is 150000 units. Clearly showing the intermediate computation, answer the following (a) What is the energy Index? (b) what is the cost Index? ( c ) Represent the energy and cost distribution on pi - diagrams and Present your interference based on the above.
Data from a test on a NAPOCOR boiler, using pulverized coal, are as follows: Proximate Analysis of Coal Ultimate |Analysis of Coal W = 2.80 % C = 84.36 % N = 0.63 % VCM = 1.16 % H = 1.89 % S = 0.89 % FC = 88.21 % O = 4.40 % A = 7.83 % The coal rate is 11762 kg/hr and the excess air required is 35 %. Determine: a) the “as fired”coal analysis, and the “dry” coal analysis; and b) the actual air required per hour.
32 - A fixed volume insulated tank, initially empty, was connected to a distribution line carrying helium gas at 115ºC by means of a valve. The valve is opened first and closed when the pressure is the same as the distribution line pressure. What is the final internal energy of helium in the tank? (Internal energy of the warehouse in the final state = Enthalpy of the distribution line). (Cp=5.1926) will be taken. a) 2014.7 kJ/kg B) 649.1 kJ/kg NS) 2118.6 kJ/kg D) 2066.7 kJ/kg TO) 597.1 kJ/kg
A feed of 10 000 kg of soybeans is processed in a sequence of three stages. The feed contains 35wt% protein, 27.1wt% carbohydrate, 9.4wt% fiber and ash, 10.5wt% moisture, and 18wt% oil. In the first stage, the beans are crushed and pressed to remove oil, giving an expressed oil stream and a stream of pressed beans containing 6wt% oil. Assume no loss of other constituents in the oil stream. In the second stage, the pressed beans are extracted with hexane to produce an extracted meal stream containing 0.5wt% oil and a hexane-oil stream. Assume no hexane in the extracted meal. Finally, in the last stage, the extracted meal is dried to give a dried meal of 8wt% moisture. Find the 1. mass in kg of pressed beans from the first stage, the mass of extracted meal from the second stage, mass of final dried meal from the third stage, and wt% of protein in the dried meal. Provide illustration.
Entropy is one of the important coordinates in thermodynamics. Entropy shows the ratio of heat absorbed or rejected by temperature so that it can indicate the direction of heat flow. Entropy is useful for knowing the internal energy efficiency. Derive an equation for the change in the internal energy of a gas that satisfies the van der Waals equation of state. Assume the value of Cv satisfies the relationship: Cv=c1 + c2T, with c1 and c2 constant *application of the 3rd law of thermodynamics
1000 cfm of air at 95°F dry bulb, 74°F wet bulb is mixed with 2000 cfm of air at 65°F dry bulb, 54°F wet bulb. Determine the dry bulb temperature of the mixed stream.A. 74.7 °FB. 85.7 °FC. 98.4 °FD. 107.5 °F
4.A boiler uses coal for fueling a power plant. The heating value of coal is 74500 kJ per kg of fuel with 90% excess air. Determine:a. Theoretical air and fuel ratiob. Actual air and fuel ratioc. Mass of air if the boiler consumes 25lb/s of coal.d. Heat transfer in BTU if air enters at 16 deg. C and leaves at 70 deg. Ce. Heat transfer in kilowatts if air enters at 16 deg. C and leaves at 70 deg. C
A good oil well in the Persian Gulf produces about 100,000 bbl of oil per day. What mass flow rate of steam from a geothermal well located at the Larderello field in north- ern Italy would be required to provide the same rate of energy production? Are there any practical limitations to achieving this production rate? The Larderello field produces saturated steam at about 20 bar, 212.4°C. Assume a typical Larderello well is about 28 cm in diameter and is about 2,500 m deep. The enthalpy of vaporization is 1,890.7 kJ/kg at 20 bar. Assume an average liquid phase heat capacity for water of 4,100 J/kg K. Note that the energy content of a bbl of oil, which is about 5 million Btu, is referenced to its heat of combustion at 25°C.
Liquid octane enters an internal combustion engine operating at steady state with a mass flow rate of 0.004 lb/sand is mixed with the theoretical amount of air. The rate of heat transfer is 22.22 BTU/s. If the density of octane is 5.88 lb/gal, how many gallons of fuel would be used in 2 h of continuous operation of the engine?
I will give a thumbs up. Please help me 30 mins. left Given the ultimate/gravimetric analysis of coal as follows: C=81.95%, H2 = 4.63%, S=0.96%, N2=1.3%, O2=5.75%, Ash=6.09%, Moisture = 3.05% Using ash and moisture free analysis. Determine the; theoretical air fuel ratio:
just part d answer options are 1.8kJ 1.3J 1.3kJ 1.8J