Answer:
The head loss in Psi is 0.390625 psi.
Explanation:
Fluid looses energy in the form of head loss. Fluid looses energy in the form of head loss when passes through the valve as well.
Given:
Factor cv is 48.
Flow rate of water is 30 GPM.
GPM means gallon per minute.
Calculation:
Step1
Expression for head loss for the water is given as follows:
![c_{v}=\frac{Q}{\sqrt{h}}](https://tex.z-dn.net/?f=c_%7Bv%7D%3D%5Cfrac%7BQ%7D%7B%5Csqrt%7Bh%7D%7D)
Here, cv is valve coefficient, Q is flow rate in GPM and h is head loss is psi.
Step2
Substitute 48 for cv and 30 for Q in above equation as follows:
![48=\frac{30}{\sqrt{h}}](https://tex.z-dn.net/?f=48%3D%5Cfrac%7B30%7D%7B%5Csqrt%7Bh%7D%7D)
![{\sqrt{h}}=0.625](https://tex.z-dn.net/?f=%7B%5Csqrt%7Bh%7D%7D%3D0.625)
h = 0.390625 psi.
Thus, the head loss in Psi is 0.390625 psi.
Answer:
a)temperature=69.1C
b)3054Kw
Explanation:
Hello!
To solve this problem follow the steps below, the complete procedure is in the attached image
1. draw a complete outline of the problem
2. to find the temperature at the turbine exit use termodinamic tables to find the saturation temperature at 30kPa
note=Through laboratory tests, thermodynamic tables were developed, these allow to know all the thermodynamic properties of a substance (entropy, enthalpy, pressure, specific volume, internal energy etc ..)
through prior knowledge of two other properties such as pressure and temperature.
3. Using thermodynamic tables find the enthalpy and entropy at the turbine inlet, then find the ideal enthalpy using the entropy of state 1 and the outlet pressure = 30kPa
4. The efficiency of the turbine is defined as the ratio between the real power and the ideal power, with this we find the real enthalpy.
Note: Remember that for a turbine with a single input and output, the power is calculated as the product of the mass flow and the difference in enthalpies.
5. Find the real power of the turbine
Answer:
203.0160
Explanation:
Because you add then subtract then multiply buy 7 the subtract then divide then you add that to the other numbers you got than boom
Answer: double click at the top of the page. Or you can also go to home file and click add heading.
Explanation: