The owner of a propose steam power plant received bids from two fuel supplier. The first supplier offers coal whose ultimate analysis is: C = 71.5%, H = 5%, 0 = 7%, S = 3.6%, N = 1.3%, A = 8.2%, and M = 3.4%. The other supplier offers natural gas whose HHV is 52.2MJ/kg and whose volumetric analysis is: 60% CH4, 30%C2H6, and 10%CO. Excess air for both cases is 20%. Other data for the power plant are: net output = 100MW, heat added at the boiler = 90% of energy chargeable, specific enthalpy in kJ/kg: turbine inlet = 3582.3, turbine outlet = 2251.881, pump inlet 289.23, boiler inlet = 304.534. = Atmospheric air temperature is 35C. Find possible steam consumption of this propose plant in kg/s.

The owner of a propose steam power plant received bids from two fuel supplier. The first supplier offers coal whose ultimate analysis is: C = 71.5%, H = 5%, 0 = 7%, S = 3.6%, N = 1.3%, A = 8.2%, and M = 3.4%. The other supplier offers natural gas whose HHV is 52.2MJ/kg and whose volumetric analysis is: 60% CH4, 30%C2H6, and 10%CO. Excess air for both cases is 20%. Other data for the power plant are: net output = 100MW, heat added at the boiler = 90% of energy chargeable, specific enthalpy in kJ/kg: turbine inlet = 3582.3, turbine outlet = 2251.881, pump inlet 289.23, boiler inlet = 304.534. = Atmospheric air temperature is 35C. Find possible steam consumption of this propose plant in kg/s.

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

Brayton cicle 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.
A steam generator comprises a boiler, a superheater, an economizer, and an air preheater. The feedwater enters the economizer at 140 oC and leaves the boiler drum at 60 bar, 0.98 dries, and leaves the superheater at 450 oC. When using coal with a calorific value of 25.2 MJ/kg, the rate of evaporation is 8.5 kg steam per kg coal and the air-fuel ratio is 15:1 by mass. Neglecting heat losses and pressure drops, estimate the heat transfer per kg fuel in each component and the efficiency of the steam generator. What are the percentages of the total heat absorption taking place in the economizer, boiler, and superheater, respectively? Assume Cp of air and water as 1.005 and 4.2 kJ/kg-K, respectively.
Thermodynamics: - Clear writing please!!! Thank you - Sketch and label all numbers on the turbine. - Sketch and label all numbers on the process on a T-s diagram. 7.133E A large condenser in a steam power plant dumps 15 000 Btu/s by condensing saturated water vapor at 115 F with an ambient temperature of 77 F. What is the entropy generation rate?
Q1) How to steam flow control in thermal power plants?
Q1) Which type of boiler is selected in certain thermal power plant discuss the effects depend upon the natural circulation of water?
Request: Can you please help me with answering the following question? Thank you for all your hard work here and only do what you can. Question: When a compressed gas storage tank fails, the resultant explosion occurs so rapidly that the gas cloud can be considered adiabatic and assumed to not mix appreciably with the surrounding atmosphere. Consider the failure of a 2.5-m3 air storage tank initially at 15 bar. Atmospheric pressure is 1 bar, Cp = 7R/2. Provide an estimate by assuming reversibility. (a) Calculate the work done on the atmosphere. Does the reversibility approximation over-estimate or under-estimate the actual work? (b) A detonation of 1 kg of TNT releases about 4.5 MJ of work. Calculate the equivalent mass of TNT that performs the same work as in part (a).
Q22(i) Construct the flow chart (diagram) and compute the total heat required to convert 900 g of ice at –30°C to steam at 145 °C. (Cice = 2090 J/kg.°C, Cwater = 4186 J/kg.°C, Csteam = 2010 J/kg.°C, Lf = 3.33 × 105 J/kg, Lv = 2.26 × 106 J/kg.)
2. A 5 kg/s of steam is expanded isentropically from 1.33 MPa, 221°C. The exhaust is dry and saturated. Determine: a. Final Temperature b. Work non-flow in kW c. Work steady-flow in kW
Suppose that a new gasoline engine has been invented which can operate at the maximumthermodynamic efficiency (rather than the 25% or so which characterize most realisticengines). The burned fuel reaches about 2100 degrees C inside the engine and a 50 L gas tank has about2 GJ of fuel energy. If the engine must supply 30 hp to keep the car at a steady speed on the highway, how long will a tank of gas last?
Can you provide the step-by-step solution how to get the answers? Steam flows adiabatically through a nozzle from 1517 KPaa, 290 °C, to 965 KPaa. Sketch the pV and Ts diagram and for m=454 gm/sec, Determine delta s, delta u, delta v, delta h, work nonflow and work steady flow. the first three (delta s, delta u, delta v, delta h) were already answered. Can you continue the bold part
I want to know how this problem can be done using mollier-chart please let me know what I did wrong in the Attached mollier-chart picture so the solution didn't come out to be right. The problem A steam power plant, operating with one regenerative feed water heating at the initial steam conditions of P=35 bar, T=440°C, exhaust pressure at 0.04 bar. Steam is bled from the turbine for feed water heating at a pressure of 1.226 bar.Determine1-Specific heat consumption2- Thermal efficiency of the cycle3- Thermal efficiency of the cycle neglecting regeneration
A p-V diagram of hypothetical thermodynamic cycle with 1.24 mol of Ne (assume perfect gas) as the thermodynamic fluid initially at 330.15 K and 20.0 atm shown in the graph. Note, Cv,m = 1.5 R, Cp,m = 12 J K/mol Determine q, w, and dS for each process in the cycle and for the whole cycle. If this thermodynamical cycle is used as basis for a heat engine, what would be its efficiency? Use |w| / |q| formula.