A) 132 kW
B) 156 kW
C) 172 kW
D) 205 kW.
Correct Answer: D
Solution :
\[{{v}_{w\,1}}=v{{a}_{1}}\,\,\cos {{\alpha }_{1}}=600\,\cos 30{}^\circ =519.615\,\,\text{m/s}\] \[{{v}_{w\,2}}=0,\,\,u=300\,\,\text{m/s}\] Power output per kg/s of gas flow, \[P=\frac{{{v}_{w\,1}}\times u}{{{10}^{3}}}=\frac{519.615\times 300}{{{10}^{3}}}=155.9=156\,\,k\,W\]You need to login to perform this action.
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