Answer:
Mechanical Efficiency = 83.51%
Explanation:
Given Data:
Pressure difference = ΔP=1.2 Psi
Flow rate = ![V=8ft^3/s\\](https://tex.z-dn.net/?f=V%3D8ft%5E3%2Fs%5C%5C)
Power of Pump = 3 hp
Required:
Mechanical Efficiency
Solution:
We will first bring the change the units of given data into SI units.
![P=1.2*6.895 = 8.274KPa\\V=8*0.00283=0.226 m^3/s\\P=3*0.746=2.238KW](https://tex.z-dn.net/?f=P%3D1.2%2A6.895%20%3D%208.274KPa%5C%5CV%3D8%2A0.00283%3D0.226%20m%5E3%2Fs%5C%5CP%3D3%2A0.746%3D2.238KW)
Now we will find the change in energy.
Since it is mentioned in the statement that change in elevation (potential energy) and change in velocity (Kinetic Energy) are negligible.
Thus change in energy is
![=(Mass * change in P)/density\\= \frac{M*P}{p}\\\\](https://tex.z-dn.net/?f=%3D%28Mass%20%2A%20change%20in%20P%29%2Fdensity%5C%5C%3D%20%5Cfrac%7BM%2AP%7D%7Bp%7D%5C%5C%5C%5C)
As we know that Mass = Volume x density
substituting the value
Energy = Volume * density x ΔP / density
Change in energy = Volumetric flow x ΔP
Change in energy = 0.226 x 8.274 = 1.869 KW
Now mechanical efficiency = change in energy / work done by shaft
Efficiency = 1.869 / 2.238
Efficiency = 0.8351 = 83.51%
Answer:
ΔQ = 4930.37 BTu
Explanation:
given data
height h = 8ft
Δt = 8 hours
length L = 24 feet
R value = 16.2 hr⋅°F⋅ft² /Btu
inside temperature t1 = 68°F
outside temperature t2 = 16°F
to find out
number of Btu conducted
solution
we get here number of Btu conducted by this expression that s
......................1
here A is area that is = h × L = 8 × 24 = 1492 ft²
put here value we get
solve it we get
ΔQ = 4930.37 BTu
Answer:
The drying time is calculated as shown
Explanation:
Data:
Let the moisture content be = 0.6
the free moisture content be = 0.08
total moisture of the clay = 0.64
total drying time for the period = 8 hrs
then if the final dry and wet masses are calculated, it follows that
t = (X0+ Xc)/Rc) + (Xc/Rc)* ln (Xc/X)
= 31.3 min.
Explanation:
animal parts, wood, rock, and clay
An architectural engineer is a person who is responsible for studying and evaluating construction blueprints and designs. This is to determine if the design is feasible and if it is feasible to construct. Building styles and aesthetics should not be prioritized over the structural integrity and safety of a proposed building. Plan, construct, and prototype buildings, and be able to identify, analyze, and resolve issues with them as they arise.
<em>Hope this helps :)</em>