The rate of emission of SO2 from the stack of a power plant is 126.1 g/s. The effective heigth of the stack is 46m. Calculate the SO2 concentration in parts per million at a parking lot located 900 m downwind from the stack on a sunny October day when the wind velocity is 4 m/s. Use class C stability and rural conditions

The rate of emission of SO2 from the stack of a power plant is 126.1 g/s. The effective heigth of the stack is 46m. Calculate the SO2 concentration in parts per million at a parking lot located 900 m downwind from the stack on a sunny October day when the wind velocity is 4 m/s. Use class C stability and rural conditions

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy

Section: Chapter Questions

Problem 9P

See similar textbooks

Similar questions

A power plant in rough terrain has a 100-m stack with an inside radius of 1 m. The plant emits 300 g/s of SO2 from the stack with an exit velocity of 10 m/s at a temperature of 120oC. Ambient temperature is 6oC and the temperature increases at a rate of 2 K/km. At 10 m above ground, surface windspeed is 1.5 m/s on a mostly cloudy night. Find the concentration (mg/m3) of SO2: Directly downwind at a distance of 2 km. At a point located 2 km downwind and 0.1 km off the downwind axis. At the point downwind where it is a maximum. Approximately how far from the stack does this occur?
9. Consider the NOx emissions from two rural sources. The second source is located 500 m south and 500 m east of the first source. Source 1 emits 20.5 g/s and has an effective height of 100 m. Source 2 emits 35 g/s and has an effective height of 150 m. Sketch the locations of the stacks and the receptor site. Determine the concentration at a receptor located 4 km east and 200 m south of source one. Atmospheric conditions are neutral with a westerly wind of 5 m/s measured at 10 m.
The SOo concentration in a stack is 500 ppm, the stack diameter is 12 ft, and the stack gas velocity is 65 ft/secl The gas temperature and pressure are 390 °F ami 1 atm. Calculate the approximate SO2 mass emission rate in Ih/day. (The atomic weight of S - 32 and the atomic weight of O « 16)a. 12,300 Ih/dayb. 16,400 Ih/daye. 24,600 Ih/dayd. 32,800 Ib/day
A stack emitting 55 g/s of SO2 has an effective stack height of 150 m. The windspeed is 4 m/s at 10 m above ground and 5 m/s at the effective smokestack height. It is a cloudy summer day. Estimate the ground-level SO2 concentration directly downwind at a distance of 2 kilometers. Note: Strong insolation refers to a clear summer day, moderate refers to a summer day with few broken clouds, slight refers to a fall afternoon or a cloudy summer day.
The concentration of PM inside a stack is 100,000 jig/m3. The stack gas exits at an average velocity of 20 m/s, and the stack has an inside diameter of 2 meters, The emission rate of PM5 in kg/day, is approximately:a. 1J5 kg/day b. 27.2 kg/dayc, 138 kg/day d. 543 kg/day
Question 2. A coal fired power station requires an ESP for dust removal from the flue gas. The influent flu gas has a concentration of 5200 mg/m3 of dust particles and a flow rate of 150 m3/s. The smallest particles in the gas stream are 1.5 um in diameter, and all particles have a dielectric constant of 5.5. The emission standard is 50 mg/m3. Assume a plate-to-plate spacing of 30 cm and an applied voltage of 15,000 volts. Each plate is 20 m long and 15 m high. Estimate –a) The particle drift velocityb) The required collection-plate area and number of plates required.Assume – Standard temperature and pressure.
Estimate the rate of emission of SO2 in g/s that results in a centerline (y=0) concentration at ground level of 1.412 x 10-3 g/m3 one kilometer from the stack. The time of the measurement was 1:00 pm on clear summer afternoon and the stack is located in a rural area. The wind speed was 1.8 m/s measured at a height of 10 m. The effective stack height is 94 m. No inversion was present. Group of answer choices 330 g/s 920 g/s 1010 g/s 510 g/s
A flue gas contains mainly 15 micron sized particles (density 2000 kg/m3) to be removed by a cyclone collector. The body diameter is assumed to be 0.8m. A high efficiency mode is desired. The inletvelocity is 15 m/s with a density of 1.225 kg/m3. What is the efficiency of removal of the 15 micron sized particles?
A smokestack emits pollutant Z into the air on a sunny day. The effective stack height is 270 m. The wind speed is 4 m/s, due east. Your house is located 4.0 km due east of the smokestack. The ground level concentration of pollutant A is 2.0 mg/m3at your house. Your friend lives 4.0 km east and 1.5 km south of the smokestack. a. What is the emission rate of the pollutant in kg/s? b. For the emission rate determined in part a, you now want to know the concentration of pollutant Z at ground level at your friend’s house. i. What parameters change in the dispersion modeling equation? For each parameter, include the parameter symbol, a definition of the parameter, and its new quantitative value and required units.ii. Is the concentration at your friend’s house lower, the same or higher than the concentration at your house and why? (you do not need to calculate the concentration) show all work
A coal containing 2% sulfur is burned completely to ash in a brick kiln at a rate of 30 kg/min. The sulfur content in the ash was found to be 6% of the initial amount of sulfur present in the coal fed to the brick kiln. The molecular weights of S, H and O are 32, 1 and 16 g/mole, respectively. The annual rate of sulfur dioxide (SO,) emission from the kiln (in tonnes/ year, up to two decimal places) is
A 90-m³ basement in a residence is found to be contaminated with radon coming from the ground through the floor drains. The concentration of radon in the room is 1.5 Bq L- (becquerels per liter) under steady-state conditions. The room behaves as a CMFR, and the decay of radon is a first-order reaction with a decay rate con- stant of 2.09 x 10-s. If the source of radon is closed off and the room is vented with radon-free air at a rate of 0.14 m. s, how long will it take to lower the radon concentration to an acceptable level of 0.15 BqL-¹?
The gas contains 650 ppm SO2; calculate the emission rate of SO2 in kg/day.