The properties of the air in the inlet section with A1 = 0.25ab m2 in a converging-diverging channel are given as U1 = 25a,b m/s
1 answer:
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Explanation:
Step1
Factor of safety is the number that is taken for the safe design of any component. It is the ratio of failure stress to the maximum allowable stress for the material.
Step2
It is an important parameter for design of any component. This factor of safety is taken according to the environment condition, type of material, strength, type of component etc.
Step3
Different material has different failure stress. So, ductile material fails under shear force. Ductile material’s FOS is based on yield stress as failure stress as after yield point ductile material tends to yield. Brittle material’s FOS is based on ultimate stress as failure stress.
The expression for factor of safety for ductile material is given as follows:
Here, is yield stress and
is allowable stress.
The expression for factor of safety for brittle material is given as follows:
Here, is ultimate stress and
is allowable stress.
Answer:
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Explanation:
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Answer:
a) | v2 | , β2 ( load, bus voltage at bus 2 )
p1 , q1 ( slack, bus power at bus 1 )
b) q2 , β2
p1 and q1 ( slack, bus power at bus 1 )
Explanation:
Attached below is a schematic representation of the solution
<u>a) Identify the variables in the solution vector assume Bus 2 is a load bus</u>
The specified parameters are ; P2 and q2
while | v2 | and β2 are not specified
given that bus 2 is a load bus, bus 1 is a slack bus with ; | v1 | and β1 been specified while p1 and q1 are not specified
<em>Hence the variables in the solution </em>
<em>= | v2 | , β2 ( load, bus voltage at bus 2 )</em>
<em> p1 , q1 ( slack, bus power at bus 1 ) </em>
<u>b) Identify the variables in the solution vector ( assume Bus 2 is a PV bus )</u>
specified at Bus 2 are ; | p2 | , | v2 |
unspecified : q2 , β2
Bus 1 ( still a slack bus )
specified parameter : | v1 | and β1
unspecified : p1 and q1
<em>Hence the variables in the solution </em>
<em>= q2 , β2 </em>
<em> p1 and q1 ( slack, bus power at bus 1 ) </em>
