The steam requirements of a manufacturing facility are being met by a boiler whose rated heat input is 5.5 x 106 Btu/h. The comb
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Answer:
maximum allowable electrical power=4.51W/m
critical radius of the insulation=13mm
Explanation:
Hello!
To solve this heat transfer problem we must initially draw the wire and interpret the whole problem (see attached image)
Subsequently, consider the heat transfer equation from the internal part of the tube to the external air, taking into account the resistance by convection, and conduction as shown in the attached image
to find the critical insulation radius we must divide the conductivity of the material by the external convective coefficient
Answer:
Part a : The SI unit of σ is Pascal.
Part b : The pressure is 414.28 psi.
Explanation:
Part a
The equation is given as
As per the dimensional analysis
So the equation becomes
As the dimensions are of pressure so the SI unit of σ is Pascal.
Part b
Pressure in US customary base units is given in psi so
So
So the pressure is 414.28 psi.
Answer:
a) The velocity is 42.0833 ft/s
b) The flow rate is 3366.664 ft³/s
c) The Froude number is 0.2345
d) The flow energy dissipated (expressed as percentage of the energy prior to the jump) is 18.225 ft
e) The critical depth is 3.8030 ft
Explanation:
Given data:
80 ft wide channel, L
1 ft and 10 ft water depths, d₁ and d₂
Questions: a) Velocity of the faster moving flow, v = ?
b) The flow rate (discharge), q = ?
c) The Froude number, F = ?
d) The flow energy dissipated, E = ?
e) The critical depth, dc = ?
a) For the velocity:
Solving for F:
F = 7.4162
Here, g = gravity = 32.2 ft/s²
b) The flow rate:
c) The Froude number:
d) The flow energy dissipated:
e) The critical depth: