The power output of a steam turbine is 300 kW. The specific enthalpy of the steam at the inlet is 3000 kJ/kg. The steam leaves the turbine at a pressure of 30 kPa (abs) and has a dryness fraction 0.80. The efficiency of the turbine is 80%. Use steam table if required. (a) What is the mass flow rate of the steam in the turbine? (b) If the turbine runs for 20 hours a day and the price of electricity is $ 0.09/kWh, what is the annual revenue generated from the turbine? [0.45 kg/s, $197100]
The power output of a steam turbine is 300 kW. The specific enthalpy of the steam at the inlet is 3000 kJ/kg. The steam leaves the turbine at a pressure of 30 kPa (abs) and has a dryness fraction 0.80. The efficiency of the turbine is 80%. Use steam table if required. (a) What is the mass flow rate of the steam in the turbine? (b) If the turbine runs for 20 hours a day and the price of electricity is $ 0.09/kWh, what is the annual revenue generated from the turbine? [0.45 kg/s, $197100]
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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Q15
![Q15 The power output of a steam turbine is 300 kW. The specific enthalpy of the steam at the
inlet is 3000 kJ/kg. The steam leaves the turbine at a pressure of 30 kPa (abs) and has a
dryness fraction 0.80. The efficiency of the turbine is 80%. Use steam table if required.
(a) What is the mass flow rate of the steam in the turbine?
(b) If the turbine runs for 20 hours a day and the price of electricity is $ 0.09/kWh, what
is the annual revenue generated from the turbine? [0.45 kg/s, $197100]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fabdd1821-d7b6-4171-a67e-edf70418727b%2Fc876e654-1911-4cf0-be18-134a1f34c269%2F2wdg23n_processed.png&w=3840&q=75)
Transcribed Image Text:Q15 The power output of a steam turbine is 300 kW. The specific enthalpy of the steam at the
inlet is 3000 kJ/kg. The steam leaves the turbine at a pressure of 30 kPa (abs) and has a
dryness fraction 0.80. The efficiency of the turbine is 80%. Use steam table if required.
(a) What is the mass flow rate of the steam in the turbine?
(b) If the turbine runs for 20 hours a day and the price of electricity is $ 0.09/kWh, what
is the annual revenue generated from the turbine? [0.45 kg/s, $197100]
Expert Solution
Step 1
Given data:
Power output of steam turbine = 300 kW
Specific enthalpy of the steam at the inlet = h1 = 3000 kJ/kg
Steam leaves the turbine at a pressure of 30 kPa and a dryness fraction of 0.8 .
The efficiency of the turbine = = 80%
We have to find :
a) The mass flow rate of the steam in the turbine
b) If the turbine runs for 20 hours a day and the price of electricity is $0.09/kWh, what is the annual revenue generated from the turbine?
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