Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankine cycle at 800 psia and 900F and leaves as saturated vapor. Steam is then reheated to 800F before it expands to a pressure of 1 psia. Heat is transferred to the steam in the boiler at a rate of 6 * 104 Btu/s. Steam is cooled in the condenser by the cooling water from a nearby river, which enters the condenser at 45F. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the pressure at which reheating takes place, (b) the net power output and thermal efficiency, and (c) the minimum mass flow rate of the cooling water required.
Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankine cycle at 800 psia and 900F and leaves as saturated vapor. Steam is then reheated to 800F before it expands to a pressure of 1 psia. Heat is transferred to the steam in the boiler at a rate of 6 * 104 Btu/s. Steam is cooled in the condenser by the cooling water from a nearby river, which enters the condenser at 45F. Show the cycle on a T-s diagram with respect to saturation lines, and determine (a) the pressure at which reheating takes place, (b) the net power output and thermal efficiency, and (c) the minimum mass flow rate of the cooling water required.
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
Steam enters the high-pressure turbine of a steam
power plant that operates on the ideal reheat Rankine cycle
at 800 psia and 900F and leaves as saturated vapor. Steam
is then reheated to 800F before it expands to a pressure of
1 psia. Heat is transferred to the steam in the boiler at a rate
of 6 * 104 Btu/s. Steam is cooled in the condenser by the
cooling water from a nearby river, which enters the condenser
at 45F. Show the cycle on a T-s diagram with respect
to saturation lines, and determine (a) the pressure at which
reheating takes place, (b) the net power output and thermal
efficiency, and (c) the minimum mass flow rate of the cooling
water required.
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