1) A 45-percent efficient, coal-fired power plant generates output power of 1000 MW (106 kW) and emits SO2 at the legally allowable rate of 0.6 lb SO2 per million BTU of heat into the plant. The stack has an effective height of 250 m. An anemometer on a 10 m pole measures 2.75 m/s of wind and it is a cloudy summer day. Assume the power plant is in an urban area. Predict the ground level concentration of SO2, 5 km directly downwind. The following conversion may be useful in calculating the emission rate: 3,412 BTU = 1 kWh and the input power = output power/efficiency also,
2) For the plant described in problem, determine (1) the distance downwind to reach the maximum SO2 concentration and (2) find that maximum concentration