Answer:
Explanation:
volume of 20.9 N
= 20.9 / 11.5 m³
= 1.8174 m³
In one hour 1.8174 m³ flows
in one second volume flowing = 1.8174 / 60 x 60
= 5 x 10⁻⁴ m³
Rate of volume flow = 5 x 10⁻⁴ m³ / s .
Answer:
The minimum mass flow rate will be "330 kg/s".
Explanation:
Given:
For steam,
![m_{s}=5.55 \ kg/s](https://tex.z-dn.net/?f=m_%7Bs%7D%3D5.55%20%5C%20kg%2Fs)
![\Delta h=2491 \ kg/kj](https://tex.z-dn.net/?f=%5CDelta%20h%3D2491%20%5C%20kg%2Fkj)
For water,
![\Delta T=10^{\circ}C](https://tex.z-dn.net/?f=%5CDelta%20T%3D10%5E%7B%5Ccirc%7DC)
![(Cp)_{w}=4.184 \ kJ/kg^{\circ}C](https://tex.z-dn.net/?f=%28Cp%29_%7Bw%7D%3D4.184%20%5C%20kJ%2Fkg%5E%7B%5Ccirc%7DC)
They add energy efficiency as condenser becomes adiabatic, with total mass flow rate of minimal vapor,
⇒ ![m_{s}\times (\Delta h)=M_{w}\times(Cp)_{w}\times \Delta T](https://tex.z-dn.net/?f=m_%7Bs%7D%5Ctimes%20%28%5CDelta%20h%29%3DM_%7Bw%7D%5Ctimes%28Cp%29_%7Bw%7D%5Ctimes%20%5CDelta%20T)
On putting the estimated values, we get
⇒ ![5.55\times 2491=M_{w}\times 4.184\times 10\\](https://tex.z-dn.net/?f=5.55%5Ctimes%202491%3DM_%7Bw%7D%5Ctimes%204.184%5Ctimes%2010%5C%5C)
⇒ ![13825.05=M_{w}\times 41.84](https://tex.z-dn.net/?f=13825.05%3DM_%7Bw%7D%5Ctimes%2041.84)
⇒ ![M_{w}=330 \ kg/s](https://tex.z-dn.net/?f=M_%7Bw%7D%3D330%20%5C%20kg%2Fs)
Answer:
![Availability=\dfrac{Up\ time}{Down\ time+Up\ time}](https://tex.z-dn.net/?f=Availability%3D%5Cdfrac%7BUp%5C%20time%7D%7BDown%5C%20time%2BUp%5C%20time%7D)
Explanation:
Availability:
It define as the probability of system which perform desired task before showing any failure .
The availability can be define as follows
![Availability=\dfrac{Up\ time}{Down\ time+Up\ time}](https://tex.z-dn.net/?f=Availability%3D%5Cdfrac%7BUp%5C%20time%7D%7BDown%5C%20time%2BUp%5C%20time%7D)
Or we can say that
![Availability=\dfrac{Up\ time}{total\ time}](https://tex.z-dn.net/?f=Availability%3D%5Cdfrac%7BUp%5C%20time%7D%7Btotal%5C%20time%7D)
Availability can also be express as
![Availability=\dfrac{MTBF}{MTBF+MTTR}](https://tex.z-dn.net/?f=Availability%3D%5Cdfrac%7BMTBF%7D%7BMTBF%2BMTTR%7D)
Where MTBF is the mean time between two failure.
MTTR is the mean time to repair.
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