The dimensions of a single bag in a baghouse filter unit are 0.3m in diameter and 4.6m long (cylindrical). The filtering unit consists of 46 such bags and is to treat 13600m3/h of gas from an open-hearth furnace. The inlet loading is 0.0071kg particulates /m3gas. Calculate: a) Total filtration area of the bags. (5) b) Effective filtration velocity. (5) c) Mass of particles collected daily at 100% efficiency