environmental engineering

posted by .

A power plant emits 120 lb of flyash per
hour up the stack. The flow rate of the hot
gases in the stack is 25 ft3/sec. What is the
concentration of the flyash in micrograms per
cubic meter?

  • environmental engineering -

    120Lbs/h * 454g/Lb. * 1h/3600s=15.13 g/s
    of flyash.

    25Ft^3/s * 1m^3/35.94Ft^3 = 0.696 m^3/s.

    Concentration = 15.13g/s * 1s/0.696m^3 =
    27.75 g/m^3 = 2.775*10^6 ug/m^3.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A stack of books rests on a level perfectly smooth surface. A force F acts on the stack and it acclerated at 3m/s^2. A 1kg book is added to the stack. The same force is applied and now the stack accelerates at 2m/s^2. What was the …
  2. Environmental engineering

    Lake Kickapoo, TX, is approximately 12 km in length by 2.5 km in width. The inflow for the month of April is 3.26 cubic meter per second, and the outflow is 2.93 cubic meter per second. The total monthly precipitation is 15.2 cm and …
  3. Physics

    A fossil-fuel power plant that generates 1000MW of electrical power discharges 1600MJ per second as waste heat into the river. A)At what rate(in MW) is thermal energy obtained fromt the burning of coal?
  4. 8 th grade math

    a stack of fierwood is 8ft.x4ft.x4ft wood costs 1.00 per cubic foot what is total cost of stack 64.00
  5. Math

    Need help on writing an equation. the question is let H represent the stack height. Write an equation that represents the height of a stack of medium lampshades in terms of the number of lampshades, s, in the stack. # of lamp shades …
  6. PreCal

    You have 1000 coins. Start by placing one coin in its own "stack." Next to the first stack, make a stack of two coins. Then make a stack of four coins and continue creating stacks of coins, each stack twice as high as the previous …
  7. physics

    Forces of 8.85 N and 2.21 N act at right angles on a stack. What is the mass of the stack if it accelerates at a rate of 4.4 m/s^2?
  8. math urgent help needed!!

    I am so sorry but this homework is due in half an hour. Please help me! A smokestack deposits soot on the ground with a concentration inversely proportional to the square of the distance from the stack. With two smokestacks 20 miles …
  9. Calculus

    A smokestack deposits soot on the ground with a concentration inversely proportional to the square of the distance from the stack. With two smokestacks d miles apart, the concentration of the combined deposits on the line joining them, …
  10. math

    laura works at a local supermarket. she can stack 7 shelves in 1\3 of an hour. At this rate, how many shelves can she stack in 2 hours

More Similar Questions