Air Flow formulas
CFM = Duct area sq ft x Velocity
Standard Air= 70F @ 29.92 HG
1 cubic foot of standard air = 0.075 pounds 13.3 cubic feet of standard air =
Remember RPM is interchangeable for CFM
Note: new is the same as 1 an
CE 170 (Fall 04)
10 / 26 / 04
CA 16.1 Sketch the oxygen uptake curve (O2 taken up by bacteria vs. time) for three
BOD tests run using the same water source at temperatures of 10, 20 and 30 C.
CA 16.2 A waste has a BOD5 of 20 mg/L
Distillation of Binary Mixtures
7.0 INSTRUCTIONAL OBJECTIVES
After completing this chapter, you should be able to:
Explain the need in distillation for a condenser to produce reux and a reboiler to produce boilup.
Particle Size Analysis
How do we define particle size?
In class exercise
Some of the many different ways
Use of fractal dimension to describe irregular shapes
Simplest case: a spherical, solid, single component particle
Critical dimension: r