Answer:
h = 10,349.06 W/m^2 K
Explanation:
Given data:
Inner diameter = 3.0 cm
flow rate = 2 L/s
water temperature 30 degree celcius
![Q = A\times V](https://tex.z-dn.net/?f=Q%20%3D%20A%5Ctimes%20V)
![2\times 10^{-3} m^3 = \frac{\pi}{4} \times (3\times 10^{-2})^2 \times velocity](https://tex.z-dn.net/?f=2%5Ctimes%2010%5E%7B-3%7D%20m%5E3%20%3D%20%5Cfrac%7B%5Cpi%7D%7B4%7D%20%5Ctimes%20%283%5Ctimes%2010%5E%7B-2%7D%29%5E2%20%5Ctimes%20velocity)
![V = \frac{20\times 4}{9\times \pi} = 2.83 m/s](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B20%5Ctimes%204%7D%7B9%5Ctimes%20%5Cpi%7D%20%3D%202.83%20m%2Fs)
![Re = \frac{\rho\times V\times D}{\mu}](https://tex.z-dn.net/?f=Re%20%3D%20%5Cfrac%7B%5Crho%5Ctimes%20V%5Ctimes%20D%7D%7B%5Cmu%7D)
at 30 degree celcius ![= \mu = 0.798\times 10^{-3}Pa-s , K = 0.6154](https://tex.z-dn.net/?f=%3D%20%5Cmu%20%3D%200.798%5Ctimes%2010%5E%7B-3%7DPa-s%20%2C%20K%20%20%3D%200.6154)
![Re = \frac{10^3\times 2.83\times 3\times 10^{-2}}{0.798\times 10^{-3}}](https://tex.z-dn.net/?f=Re%20%3D%20%5Cfrac%7B10%5E3%5Ctimes%202.83%5Ctimes%203%5Ctimes%2010%5E%7B-2%7D%7D%7B0.798%5Ctimes%2010%5E%7B-3%7D%7D)
Re = 106390
So ,this is turbulent flow
![Nu = \frac{hL}{k} = 0.0029\times Re^{0.8}\times Pr^{0.3}](https://tex.z-dn.net/?f=Nu%20%3D%20%5Cfrac%7BhL%7D%7Bk%7D%20%3D%200.0029%5Ctimes%20Re%5E%7B0.8%7D%5Ctimes%20Pr%5E%7B0.3%7D)
![Pr= \frac{\mu Cp}{K} = \frac{0.798\times 10^{-3} \times 4180}{0.615} = 5.419](https://tex.z-dn.net/?f=Pr%3D%20%5Cfrac%7B%5Cmu%20Cp%7D%7BK%7D%20%3D%20%5Cfrac%7B0.798%5Ctimes%2010%5E%7B-3%7D%20%5Ctimes%204180%7D%7B0.615%7D%20%3D%205.419)
![\frac{h\times 0.03}{0.615} = 0.0029\times (1.061\times 10^5)^{0.8}\times 5.419^{0.3}](https://tex.z-dn.net/?f=%5Cfrac%7Bh%5Ctimes%200.03%7D%7B0.615%7D%20%20%3D%200.0029%5Ctimes%20%281.061%5Ctimes%2010%5E5%29%5E%7B0.8%7D%5Ctimes%205.419%5E%7B0.3%7D)
SOLVING FOR H
WE GET
h = 10,349.06 W/m^2 K
Parallel Resistor Equation
If the two resistances or impedances in parallel are equal and of the same value, then the total or equivalent resistance, RT is equal to half the value of one resistor. That is equal to R/2 and for three equal resistors in parallel, R/3, etc.
The minimum and maximum required footing projections for a concrete footing having a thickness of 8 inches will be 4 inches and 8 inches.
<h3>What is projection?</h3>
It should be noted that footing projections are important for construction purposes
In this case, the minimum and maximum required footing projections for a concrete footing having a thickness of 8 inches will be 4 inches and 8 inches.
Learn more about projection on:
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Answer:
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Explanation:
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Answer:
conditional instability (Γd > Γe > Γw)
Explanation:
Given;
dry adiabatic rate, Γd = 10ºC/1000 meters
wet adiabatic rate, Γw= 6.5ºC/1000 meters
environmental lapse rate, Γe = 7.8ºC/1000 meters
Stability of the atmosphere can be described as Absolute stability, Absolute instability or conditional instability.
Conditions for Absolute stability:
Γd > Γw > Γe
Conditions for Absolute instability:
Γe > Γd > Γw
Conditions for conditional instability:
Γd > Γe > Γw
Thus, conditional instability satisfies the given values of the atmospheric condition: Γd (10) > Γe (7.8) > Γw (6.5)