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….
Design a vertical turbine flocculator to treat 75,700 m3/d of water per day at a detention time of 30 minutes.
Design a vertical turbine flocculator to treat 75,700 m3/d of water per day at a detention time of 30 minutes. Use three parallel treatment trains with four compartments per train. The temperature of the water is 20∘C, resulting in values of 1.002 × 10−3 kg/(m⋅s) and 998.2 kg/m3 for and ρ, respectively. The impeller diameter (D) to effective tank diameter (Te) ratio is 0.4. Assume a power number (Np) of 0.25 for a three pitch blade with camber, and a mean velocity gradient of 70s−1. Determine the following:
a. Dimensions of each compartment assuming they are cubes (m).
b. Impeller diameter (m).
c. Power input per compartment (W).
d. Rotational speed of each turbine (rpm).