Steam at 8 MPa, 480 C enters the turbine in ideal regenerative Rankine cycle. The condenser pressure is 8 kPa. Steam expands through the first stage turbine where some of the steam is extracted and diverted to an open feed water heater; the remaining steam expands through the second stage turbine to the condenser. The enthalpy of the feed water entering the open feed water heater is 174.85 kJ/kg. If the rate of the heat added in the steam generator is 235 MW. Determine: 1. The thermal efficiency of the cycle. 2. The mass flow rate of the cooling water enters the condenser at 15 °C and exits at 25 °C
Steam at 8 MPa, 480 C enters the turbine in ideal regenerative Rankine cycle. The condenser pressure is 8 kPa. Steam expands through the first stage turbine where some of the steam is extracted and diverted to an open feed water heater; the remaining steam expands through the second stage turbine to the condenser. The enthalpy of the feed water entering the open feed water heater is 174.85 kJ/kg. If the rate of the heat added in the steam generator is 235 MW. Determine: 1. The thermal efficiency of the cycle. 2. The mass flow rate of the cooling water enters the condenser at 15 °C and exits at 25 °C
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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Transcribed Image Text:Steam at 8 MPa, 480 C enters the turbine in ideal regenerative Rankine cycle. The
condenser pressure is 8 kPa. Steam expands through the first stage turbine where some
of the steam is extracted and diverted to an open feed water heater; the remaining
steam expands through the second stage turbine to the condenser. The enthalpy of the
feed water entering the open feed water heater is 174.85 kJ/kg. If the rate of the heat
added in the steam generator is 235 MW. Determine:
1. The thermal efficiency of the cycle.
2. The mass flow rate of the cooling water enters the condenser at 15 °C and exits at
35 °C.
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