4. A hollow fiber module is being designed for a bioreactor application. Mammalian liver cells will be grown in the shell space surrounding the hollow fibers, and nutrient media will flow through the inside of the hollow fibers. The module will contain a total of 7000 hollow fibers with inside diameter of 500 um and length 35 cm. If the pressure drop over the length of these fibers is 25 mmHg, estimate the total flow rate in ml. min-1 of the nutrient media through the hollow fiber module. The nutrient media has a viscosity of 0.85 cP and a density of 1 g cm³, and the flow is laminar.

A filter press with an effective filtering area between 350m^2 operates constantly maintaining a pressure difference of 35000Pa. The viscosity of the fluid (water with milk solids) was measured at 0.002Kg/Ms and the following data is obtained: (Image with the data) Considering that the density of milk solids on average is 200Kg/m^2 Calculate:a)The resistance of the filter media

17.29 An engineered tissue system consists of a slice of cell mass immobilized on a scaffold measuring 5 cm in length and 0.5 cm in thickness. The top face of the tissue scaffold is exposed to water, dissolved oxygen, and organic nutrients maintained at 30 C. The bottom face of the tissue is thermally insulated. At present, the specific oxygen consumption of the tissue mass is 0.5 mmol O₂/cm³cells-hr, and from respiration energetics, the energy released by respiration is 468 J/mmol O₂ consumed. We are interested in knowing the temperature at the bottom face of the tissue next to the insulated boundary. If this temperature remains below 37 C, the tissue will not die. The thermal conductivity of the tissue scaffold is k = 0.6 W/m. K. a. Using the information given predict the temperature profile within the tissue slab the slab. b. C. What is the heat generated per unit volume of tissue? Estimate the temperature at x =L (the insulated boundary).

Provide an example of a mass transfer problem in which both diffusion and convection are important.

Catalyst particles are entrapped in the center of a porous membrane material. The purpose of this is to protect the catalyst so that it can be recovered and reused. This structure shown below is immersed in an aqueous solution containing a proprietary reactant called component A. Component A can only diffuse through the top and bottom faces of this structure. The dimensions of the top face and the bottom face are same (10cm x 10cm). The thickness of the top membrane is 0.1cm and the thickness of the bottom membrane is also 0.1cm. Furthermore component A is instantaneously consumed by the catalyst at a constant rate of 144 mg/hour when it enters the compartment where the catalyst is located.   If the effective diffusivity of component A in this application is 2 x 10-5 cm2/s in the membrane calculate the concentration of component A in the surrounding solution that is needed to maintain the consumption rate. (You may assume the surrounding solution is well mixed and thus void of any…

Solve in digital format please, to copy in word How important is the type of flow regime in porous beds?Do you consider that filtration is essential at an industrial level? (minimum 10 lines).

Give a table showing classification of mass transfer operations used in Chemical industries with phases of contact

In a membrane filtration system consisting of two membrane modules A, and B. if the pressure at feed side of A is 60 psi and permeate side of A is 30 psi. What will happen to the pressure of feed size after filtering water for about 6 months? O Pressure at feed side of A will increase O Pressure at feed side of A will decrease O Pressure at permeate side of A will increase 4

1. Sodium chloride is used as a tracer to determine the probe to measure concențrations water injection dispersion coefficient in an aquifer. A 0.010 molar injection monitoring well #1 well #2 ground surface sodium chloride solution is injected into the aquifer at well #1 at a rate of 1 m/min. The injected water flows impermeable clay boundary radially outward from the well, only in the horizontal 10|m direction, and the only flow in the aquifer is due to the injected salt solution. The aquifer is 10 m thick and has a porosity of 0.35. impermeable clay boundary a) Write the PDE that describes the salt concentration at observation well #2, which is 10 m from the injection well. Include all initial and boundary conditions. b) Write the PDE, including all initial and boundary conditions, for injection of a 0.010 molar solution of dC = -k C methanol, which biodegrades according to: dt c) What physical processes contribute to dispersion in this problem? d) What is the steady state solution…

during a steady state uniolecular diffusion of A through a stagnant film of B, the flux of A will  a. increase linearly with z b. decrease linearly with z c. be independent of z