PROBuFM 1. Particle site distribution data is shown below. Determine whether, or not, particle sites are log-normally distributed, Also determine median diameter and geometric standard deviation if so. PROBLEM 2. Manufacturing process in a facility requires dry powdens to be mixed before adding the liquid solvent to obtain final product. Mieing takes place in an open vessel in a closed bulding, resulting particulate emissions. Studies has shown that the particulate matter (PM) emission factor for the mixing process is 4kg of PM emission per metric ton of final product. Also, the particles are known as log normally distributed around the mass median diameter of 15m with a geometric standard deviation of 2. Density of particles is known as 2500kg/m?. Daily capacity of the manufacturing process is 20 metric tons of final product. In order to improve indoor air quality, the emissions from the mixing vessel are withdrawn with an overhead hood just above the vessel by a blower. The volumetric flowrate is 1400Nm3/h, and the indoor temperature within the facility is 10C. The gaseous flow is passed through a gravity setting chamber followed by a cydone separator prior to discharge to the atmosphere. The dimensions of the settling chamber is 0.50.630m (HxWxL). The cyclone separator is of Stairmand high-efficiency type with a body diameter of 0.5m. a. ( 5 pts) Calculate PM emission rate from the miaing process. b. (5 pts) Caiculate actual flowrate of the blower. c. ( 5 pts) Calculate PM concentration in gaseous flow. s50um; s100um). e. (20 pts) Calculate PM collection efficiency in the gravity settler. Aso calculate PM concentration and size distribution at the exit of the settier. f. (10 pts) Calculate PM collection efficiency in the cyclone separator. Also cakculate PM concentration and size distribution at the exit of the cyclone. 8. (5 pts) Calculate overall PM collection efficiency of the system h. (5 pts) Calculate pressure drop in the cyclone. 1. (10 pts) Comment on the use of gravity settier for this system. Is it necessary? Would it be possible to use two cyclones in series for particulate control in this process? Make a brief (order-of-magnitude) estimate of what the overall efficiency of two cyclones in series would be