Question

A baghouse is treating a dusty gas (PM concentration = 0.5 g/m³ ; flow rate of 20 m³/s). The manufacturer of the baghouse recommends an air-to-cloth ratio of 0.015 m/s. The baghouse is 99.9% efficient and operates 24 hours per day. Bags have a diameter of 10 cm and a length of 10 m.

Calculate the number of bags needed to treat the gas.

Additional information:

• Include the closed end of each bag in your calculations of cloth area.

• In your calculation, add 25% more bags to allow for cleaning.

• Bags are supplied in compartments of 20. Round your final answer to an appropriate multiple of 20.

Answer 1