Answer:
a) q = 7671 W
T0 = 47.6°C
b) ΔP = 202.3 N/m²
P = 58.2 W
c) hDarray = 2 times hD isolated element
Explanation:
look at the image, you will find the solution
Answer:
The following statements are true:
A. For flows over a flat plate, in the laminar region, the heat transfer coefficient is decreasing in the flow direction
C. For flows over a flat plate, the transition from laminar to turbulence flow only happens for rough surface
E. In general, turbulence flows have a larger heat transfer coefficient compared to laminar flows 6.
Select ALL statements that are TRUE
B. In the hydrodynamic fully developed region, the mean velocity of the flow becomes constant
D. For internal flows, if Pr>1, the flows become hydrodynamically fully developed before becoming thermally fully developed
Explanation:
Answer:
See the attached file for the answers.
Explanation:
Find attached of the explanation
Answer:
G =67.74
Explanation:
Given that
length l=2.4 m
Outside diameter= 16 cm
Inside diameter= 15 cm
Speed N =900 RPM
We know that
Where r is the radius V is the velocity.
So mean radius
r = 7.5 cm
We know that
V=ω x r
V= 94.24 x 0.075 m/s
V= 7.06 m/s
G =67.74
Answer:
The high conversion in a CSTR with not very well mixing occurs mostly if the reactor is micro reactor.
From Literature, mixing due to diffusion depends on concentration or temperature gradients. This is commonly represented in micro reactors.
Also, the residence time distribution (RTD) Analysis provides information on how long the various components of fluid have been in the reactor which leads to more conversion in some cases of fluid reaction.