Determine the Velocity of paddle blades (ft/s).

A flocculator that is 100 ft long, 50 ft wide, and 20 ft deep houses four, horizontal paddle-wheels. Each paddle-wheel has four symmetrical arms with fiber glass boards, 6.5 ft from the shaft to the center of board rotating at 1.5 rpm. Paddles are 42 ft long and 8 inches wide. The water treatment plant processes 25 MGD of water. Assume that the mean water velocity is 25% of the paddle velocity and CD equals 1.8, and and ρ are equal to 2.735 × 10−5 lb⋅s/ft4 and 1.936 lb⋅s/ft2, respectively. Determine the following:

a. Velocity of paddle blades (ft/s).

b. Total power input (hp).

c. Velocity gradient (s−1).

d. Detention time (min).

e. G (dimensionless).

find the cost of your paper

set up and solve a case-study example of the light-intensity distribution in a photochemical reactor.

Photochemical reactor modeling: a case-study problem. Although radiation is important in heat transfer, an analogous model can be used in the design of photochemical reactors. The modeling of these reactors….

Write a critique on this technique of secondary-emission measurement.

Secondary-emission measurement: a case-study problem. An indirect way of measuring of secondary emission from ponds or large bodies of water used in waste treatment is to measure the concentration and….

set up a mass transfer model and evaluate the variation of the local mass transfer coefficient at various locations in the plate.

Chemical vapor deposition (CVD) on an inclined susceptor: a case-study problem. An important application of convective mass transfer theory is in CVD processes employed to coat surfaces with thin films….