Answer:
12.332 KW
The positive sign indicates work done by the system ( Turbine )
Explanation:
Stagnation pressure( P1 ) = 900 kPa
Stagnation temperature ( T1 ) = 658K
Expanded stagnation pressure ( P2 ) = 100 kPa
Expansion process is Isentropic, also assume steady state condition
mass flow rate ( m ) = 0.04 kg/s
<u>Calculate the Turbine power </u>
Assuming a steady state condition
( p1 / p2 )^(r-1/r) = ( T1 / T2 )
= (900 / 100)^(1.4-1/1.4) = ( 658 / T2 )
= ( 9 )^0.285 = 658 / T2
∴ T2 = 351.22 K
Finally Turbine Power / power developed can be calculated as
Wt = mCp ( T1 - T2 )
= 0.04 * 1.005 ( 658 - 351.22 )
= 12.332 KW
The positive sign indicates work done by the system ( Turbine )
Answer:
Unfortunately I don’t not know, but can I have free points instead? I don’t think anyone’s gonna answer and it’s just here so :/
Explanation:
Answer:
0.0002778° are equivalent to one second of arc.
Explanation:
1 degree consists of 60 arc minutes.
1 arc minutes consists of 60 arc seconds.
It can also be written as:
1 minute of arc comprise of 1/60 degree.
1 second of arc comprise of 1/60 arc minutes.
So,
<u>1 second of arc comprise of (1/60)*(1/60) degree.</u>
Thus,
Thus,
<u>0.0002778° are equivalent to one second of arc.</u>
Answer:
The correct answer to the following question will be "1.23 mm".
Explanation:
The given values are:
Average normal stress,
Elastic module,
Length,
To find the deformation, firstly we have to find the equation:
⇒
⇒
On taking "" as common, we get
⇒
⇒
Now,
The stress at the middle will be:
⇒
⇒
⇒
⇒
Hence,
⇒
On putting the estimated values, we get
⇒
⇒
⇒
Answer:
b). False
Explanation:
Thermodynamic property are of two types
1. Intensive property
2.Extensive property
Intensive properties are those properties that do not depend on mass. For example, Specific volume, temperature, specific heat capacity,density etc
Extensive properties are those properties which depends on mass.
For example, volume, heat capacity, etc.
Now when a specific property (intensive property) is multiplied with mass of the system, we get extensive property .
We know that density is an extensive property having unit of kg per meter cube.
Now the reciprocal of density is specific volume which is also an extensive property having unit of meter cube per kg.
Now if we multiply the specific volume with the mass we get volume which is an extensive property and not an intensive property.
Thus, we get extensive property when we multiply mass to any specific or intensive property.