You are leaving for a party at your cousin’s house in a city that is 150 km away. You will travel at an average rate of 50 km/hr
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To solve this problem it is necessary to apply the concepts of heat change and thermal efficiency.
The heat rate can be expressed under the function
Where,
m = Mass
Enthalpy at each state
Our values are given as,
From the tables of Enthalpy of Water at 200°C (Saturated liquid state)
At the same time for 80°C
Applying the equation of Heat,
Replacing,
Therefore the efficiency would be
Therefore the actual thermal efficiency of the turbine in percent is 0.0579.