Cost-benefit analysis of electrocyclone and cyclone

We propose a new method of cost-benefit analysis to investigate whether the new air pollution control equipment-electrocyclone vis-a-vis cyclone has the potential for practical use. When the flow rate of waste gas is 1000 m³/min, the cost of cyclone is then compared with that of electrocyclone provided that the benefit side is being fixed. The results show that the capital cost of electrocyclone is higher than that of cyclone, but the operating cost of electrocyclone is much lower than that of cyclone. Straight-line depreciation method is used to calculate the depreciation of capital cost per year. The total cost of electrocyclone is NT$ 160 290 per year which is cheaper than that of cyclone NT$ 225 356.