a) Two identical boilers are operating side by side, producing the same amount of heat. One boiler produces a flame temperature equal to 2000K while the other produces a flame temp equal to 700K. Which boiler has the potential to produce more useful work? a. Boiler with 2000K flame temp b. Boiler with 700K flame temp c. It is the same since both boilers are identical and have same heat output d. Need more information to determine

a) Two identical boilers are operating side by side, producing the same amount of heat. One boiler produces a flame temperature equal to 2000K while the other produces a flame temp equal to 700K. Which boiler has the potential to produce more useful work? a. Boiler with 2000K flame temp b. Boiler with 700K flame temp c. It is the same since both boilers are identical and have same heat output d. Need more information to determine

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

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
Q1) How to steam flow control in thermal power plants?
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).
How to increase a thermal efficiency of Rankine cycle? Explain your answer on T-s diagram Thermodynamics question. Briefly explanation please.
Explain Nuclear power plant and Solar power plant?
Figure 5.15 in the text gives a schematic of a Carnot cycle operating with a H2O liquid/vapor with a steady flow (constant mass flow rate) through each component. From the properties given below your cycle may or may not be a Carnot cycle. Kinetic energy and potential energy changes can be ignored in this problem. The cycle conditions are as follows: Process 4 – 1: constant pressure at 300 kPa from saturated liquid to saturated vapor Process 2 – 3: constant pressure at 30 kPa from x2 = 87.9% to x3 = 10.9% a) Determine the thermal efficiency using steam table data b) Compare the result of part a) with the Carnot efficiency using the boiler and condenser temperatures. c) State if the cycle is internally reversible, irreversible or impossible
Draw a schematic diagram of each problem with labels of states of a substance; Assign STATE 1 at the inlet of a high-pressure turbine. The states must be arranged in a chronological order; Plot each cycle in a t-s diagram with thestates consistent to the states assignment in the schematic diagram; A reheat-regenerative Rankine cycle receives steam at 8.0 MPa, 300 0C and exhaust at 0.01 MPa. Steam is extracted at 2.0 MPa for CFWH and the remainder for reheating. The reheated steam enters the 2nd stage turbine at 1.5MPa and expands to 1.0 MPa where more steam is extracted for OFWH. The remainder expands to the condenser pressure of 0.01MPa. Feedwater from low pressure regenerative heater leaves the CFWH at 207 0C and mixes with the feedwater. Determine the percentages of the extracted steam and the cycle thermal efficiency.
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.
Essay type: (25+ wordcount) Consider the ideal Otto, Diesel, Ericson, Stirling, and Carnot cycle operating between the same temperature limits. How would you compare the thermal efficiencies of these five cycles?
On my online homework, it says the answer for part b, 993.2 kW and part c, 360.06 are incorrect. I also need help with part d. The figure below provides steady-state operating data for a cogeneration cycle that generates electricity and provides heat for campus buildings. Steam at 1.5 MPa, 280°C, enters a two-stage turbine with a mass flow rate of m1 = 2 kg/s. A fraction of the total flow, y = 0.15, is extracted between the two stages at 0.2 MPa to provide for building heating, and the remainder expands through the second stage to the condenser pressure of 0.1 bar. Condensate returns from the campus buildings at 0.1 MPa, 60°C and passes through a trap into the condenser, where it is reunited with the main feedwater flow. Saturated liquid leaves the condenser at 0.1 bar.
An irreversible Stirling cycle containing 5.0 mol of a diatomic idealgas goes through the following series of steps, moving through states a, b, c, d, and back tostate a to complete the cycle:• Step 1 (a → b): Starts in state a: (Pa, Va, Ta) = (40. atm, 5.23 L, 510. K). Expandsisothermally in three irrerversible steps: first against a constant external pressure ofPext = 26.67 atm to an intermediate volume of V ′a = 1.5Va; then further expansionagainst a (new) constant external pressure of Pext = 20.0 atm to another intermediatevolume of V ′′a = 2Va; and finally a further expansion against a (new) constant externalpressure of Pext = 10.0 atm to the final volume of Vb = 4Va.• Step 2 (b → c): Starts in state b: (Pb, Vb, Tb) = (10.0 atm, 20.92 L, 510. K). Undergoesconstant-volume cooling to a final temperature of Tc = 255 K.• Step 3 (c → d): Starts in state c: (Pc, Vc, Tc) = (5.0. atm, 20.92 L, 255. K). Com-presses isothermally in three irrerversible steps: first against a constant…
Provide a complete and logical solution for the problem. If linear interpolation is required in the problem, tabulated values is considered as a solution. Also, provide T-S or P-V diagrams for each problem. For a Rankine Cycle, steam at 5.25 MPa, 435°C expands to 0.036 MPa. For 10 kg/s of steam, determine: a. Heat added b. Heat rejected c. Work of turbine d. Thermal Efficiency