b) A pilot-scale thermal oxidiser tower with a height of 10 m and a diameter of 1 m, removes 99% of a VOC from a contaminated waste gas stream. The flow rate of exhaust gas in the pilot-scale oxidiser is 1 ms". Assuming that reaction time and removal efficiency are maintained during scale-up, calculate the diameter of a full-scale thermal oxidiser tower with a height of 100 m capable of treating 160 mst of exhaust gas. [8 marks] c) A shaker-type baghouse with eight compartments is to be designed to remove particles from an exhaust gas. The exhaust gas exits a combustion system through a circular conduit with an internal diameter of 1.5 m. Inside the conduit, the gas flows at a temperature of 200 C and at a velocity of 5 m sl. For safety reasons, the exhaust gas is cooled down to a temperature of 80 C immediately before entering the baghouse. Calculate the number of bags in each compartment of the baghouse if: the filter velocity (or "gas-to-cloth" ratio) is 1.5 cm s'; the dimensions of each bag are: diameter = 15 cm and length = 2.5 m; each compartment of the baghouse must have the same number of bags