Answer:
The volumetric flow rate through the slot is 0.05472 m^3/s
Explanation:
Volumetric flow rate = peak velocity × slot width × slot height
Peak velocity = 0.8 m/s
Slot width = 114 mm = 114/1000 = 0.114 m
Slot height = 0.6 m
Volumetric flow rate = 0.8 m/s × 0.114 m × 0.6 m = 0.05472 m^3/s
Answer:
The time required is 10.078 hours or 605 min
Explanation:
The formula to apply here is ;
K=(d²-d²₀ )/t
where t is time in hours
d is grain diameter to be achieved after heating in mm
d₀ is the grain diameter before heating in mm
Given
d=5.5 × 10^-2 mm
d₀=2.4 × 10^-2 mm
t₁= 500 min = 500/60 =25/3 hrs
t₂=?
n=2.2
First find K
K=(d²-d²₀ )/t₁
K={ (5.1 × 10^-2 mm)²-(2.4 × 10−2 mm)² }/ 25/3
K=(0.051²-0.024²) ÷25/2
K=0.000243 mm²/h
Re-arrange equation for K ,to get the equation for d as;
d=√(d₀²+ Kt) where now t=t₂
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