A proposed 100MW coal-fired thermal plant will operate in an ideal Rankine cycle and use coal with an ultimate analysis of 80.0% C, 4.0% 02, 4.5% H2, 1.7% N2, 1.5% S, and 8.3% ash. Designed steam condition at the turbine inlet are 3MPa and 350C while the condenser must be maintained at 75kPa. Due to metallurgical considerations, the total heat to be absorbed by water at the boiler should be limited to 92% only of the energy chargeable. A. Draw the figure and Ts diagram, then, determine the possible fuel consumption of this power plant in kg/s. B. Determine the thermal efficiency of the power plant express in %. C. What is the steam rate of the power plant express in kg/kW-hr.? D. How much cooling water is needed by the condenser in kg/s of the system for a 20C temperature rise?

A proposed 100MW coal-fired thermal plant will operate in an ideal Rankine cycle and use coal with an ultimate analysis of 80.0% C, 4.0% 02, 4.5% H2, 1.7% N2, 1.5% S, and 8.3% ash. Designed steam condition at the turbine inlet are 3MPa and 350C while the condenser must be maintained at 75kPa. Due to metallurgical considerations, the total heat to be absorbed by water at the boiler should be limited to 92% only of the energy chargeable. A. Draw the figure and Ts diagram, then, determine the possible fuel consumption of this power plant in kg/s. B. Determine the thermal efficiency of the power plant express in %. C. What is the steam rate of the power plant express in kg/kW-hr.? D. How much cooling water is needed by the condenser in kg/s of the system for a 20C temperature rise?

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

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Question

A proposed 100MW coal-fired thermal plant will operate in an ideal Rankine cycle and use coal
with an ultimate analysis of 80.0% C, 4.0% 02, 4.5% H2, 1.7% N2, 1.5% S, and 8.3%
ash. Designed steam condition at the turbine inlet are 3MPa and 350C while the condenser
must be maintained at 75kPa. Due to metallurgical considerations, the total heat to be absorbed
by water at the boiler should be limited to 92% only of the energy chargeable.
A. Draw the figure and Ts diagram, then, determine the possible fuel consumption of this power
plant in kg/s.
B. Determine the thermal efficiency of the power plant express in %.
C. What is the steam rate of the power plant express in kg/kW-hr.?
D. How much cooling water is needed by the condenser in kg/s of the system for a 20C
temperature rise?

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