As a young engineer, you have been tasked to select the location of a wind turbine based on the details of the location and relevant specification below: Air density Average air velocity Diameter of wind turbine blades LOCATION A 1.29 kg/m3 54 km/h 70 m LOCATION B 1.21 kg/m3 63 km/h 60 m By comparing the amount of power generated (in MW) at Location A and Location B, determine the location that will give the optimum wind power generation.
As a young engineer, you have been tasked to select the location of a wind turbine based on the details of the location and relevant specification below:
Air density
Average air velocity
Diameter of wind turbine blades
LOCATION A
1.29 kg/m3 54 km/h 70 m
LOCATION B
1.21 kg/m3 63 km/h 60 m
By comparing the amount of power generated (in MW) at Location A and Location B, determine the location that will give the optimum wind power generation.
9 kg of Refrigerant 134-a is initially at 26.69°C with enthalpy of 100 kJ/kg. Heat is transferred to the refrigerant under a constant-pressure process until the entropy of the refrigerant reaches 0.9795 kJ/kg.K.
(i) Determine the final temperature of the refrigerant
(ii) Calculate the boundary work, Wb, in kJ.
Assist your answer with a proper P-v diagram indicating the properties,
process, and boundary work region clearly.
(iii) Explain the reason behind the high amount of boundary work obtained in (ii).
Assist your explanation with relevant sketching.
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