A stainless steel (AISI 316) tube used to transport a
chilled pharmaceutical has an inner diameter of 30 mm and a wall
thickness of 3 mm. The pharmaceutical and ambient air are at
temperatures of 6oC and 23oC, respectively, while the corresponding
inner and outer convection coefficients are 400 W/m2 K and 6 W/m2
K, respectively.
(a) What is the heat gain per unit tube length?
(b) What is the heat gain per unit length if a 10-mm thick layer...
Consider a long straight hollow cylindrical metal tube
with an inner diameter of R. The possible TE modes and TM modes for
electromagnetic waves to propagate in this wave guide system
A current of 5 mA flows through a 2 mm inner-diameter glass tube
filled with 1.0 mol dm-3 NaCl(aq) solution in the anode compartment
in addition to a CH3COONa (aq) solution in the cathode compartment.
The boundary created between the two solutions moves 6.05 mm
towards the anode in 10 minutes. Calculate the transport number of
the chloride ion in the solution.
Water flows at 20 cm^3/sec through a long straight tube that has
an inner diameter of 1 cm. As the water flows, a toxin leaches from
the tube into the water. At the inner surface of the tube, the
toxin attains its saturation concentration, Csat = 2 mM.
Fortunately, upon entering the water the toxin also irreversibly
degrades into a non-toxic compound; this degradation follows
first-order kinetics.
Toxin Diffusivity D = 10^-5 cm^2/sec
Toxin mass transfer coefficient k = 1.38...
9. A stainless steel tube having an outside diameter of 0.6 cm
and a wall thickness of 0.05 cm is to be insulated with a material
having a thermal conductivity of 0.065 W/mK. If the inner and outer
convective heat transfer coefficients are 5.9 W/m2K.
what will be the heat loss per meter of length for insulation
thicknesses of 0, 0.25, 0.5, 0.75, 1.00, and 1.25 cm if the inside
temperature is 95 C and the outside temperature is 10...
You explored the effect of flow rate of water in response to
changes in tube diameter.
Did your prediction of the what tube
would give the fastest and slowest flow rate turn out to be correct
after performing the experiment? If not, why were you surprised?
(if you have not performed the experiment, make a prediction based
on what you learned in the lecture how flow rate is affected by the
radius of a tube and then watch the video...
Construct a Fishbone diagram (cause and effect)
wear the effect is student dissatisfaction with online
learning. Be thorough with your causes, causes of
causes, and possible solutions.
Discuss the quality improvement tool
(Cause-and-effect-diagram), explain what the tool is and provide
1-2 examples/situations in which a health care manager would use
this tool.