Homework #8, ECI 150 Winter 2016, Due Friday, March 4 by 3 pm (50 pts)
(Note: some of this will be covered in class on 2/29 and maybe 3/2. But notes for these lectures are
available now.)
Problem 1 (8 pts): Complete Requirement #3 from Chapter 9. Hint: Eq

Homework #7
Due: 11-29—10
[1] Calculate the partial pressure and gas—phase mole fraction of NO in air that is in
contact with water that has a mole fraction of 1.0(10)~6 NO. The temperature and
pressure are 20 °C and 1 atm.
[2] Calculate the mole fraction

Homework 8
Course: ECI 115 (Winter 2016)
Dated: February 25, 2016
Due Date: March 3, 2016 (5p.m.)
Instructions
Please drop-off the homework solution in the HW drop-box on the 2nd floor of Ghausi
Hall by the due date. The homework can be handwritten on eng

Homework 7
Course: ECI 115 (Winter 2016)
Dated: February 18, 2016
Due Date: February 25, 2016 (5p.m.)
Instructions
Please drop-off the homework solution in the HW drop-box on the 2nd floor of Ghausi
Hall by the due date. The homework can be handwritten on

Homework #7, ECI 150 Winter 2016, Due Friday, February 26 by 3 pm (50 pts)
Problem 1, C&A 12.16 - Adsorbers (15 pts total): A polluted air stream flowing at 12,000 acfm (2,039
actual m3 h-1) at 90F (32.2 C) and 1 atm has a concentration (mixing ratio) of

Homework #6, ECI 150 Winter 2016, Due Friday, February 19 by 3 pm (50 pts)
1. Problem 14.2 (7 pts): Consider the following pilot plant data for controlling ethanol emissions by
biofiltration. The gas flow was 15 m3 min-1 and T = 28 C. The bed dimensions w

Homework #5, ECI 150 Winter 2016, Due Friday, February 12 by 3 pm (50 pts)
Problem 10.2 (5 pts): Calculate the equilibrium mole fraction of ethane dissolved in water at 10 C when
the ethane concentration in air is 10,000 ppm. The total pressure is 5 atm.

Homework #4, ECI 150 Winter 2016, Due Friday, February 5 by 3:00 pm (50 pts)
Problem 1 (updated from C&A 5.16) (10 pts) An ESP must treat 300,000 acfm of polluted air with 99%
overall collection efficiency towards PM.
a. Assuming that the effective averag

Homework #3, ECI 150 Winter 2016, Due Friday, January 29 by 3 pm (50 pts)
Problem 3.26 (6 pts) An air pollution control system at a plant consists of a cyclone precleaner followed
by an ESP. The air entering the cyclone has a PM concentration of 2.5 g m-3

ECI150 W15 HW4 Solutions
Problem 1
a)
1 =
Rearrange to get:
300000 3 /
=
(1 ) =
(1 0.99) = 92103 2
0.25 / 60/
b)
=
c)
=
6
=3
= 1.2
15
92103 2
+ =
+ 3 = 514.7 516
2 6 15
Since there are 3 mechanical fields, total plate number should be divisible

Product Gauss cubature over polygons
based on Greens integration formula
Alvise Sommariva and Marco Vianello
Department of Pure and Applied Mathematics
University of Padova
via Belzoni 7, 35131 - Padova (Italy)
Abstract
We have implemented in Matlab a G

Gaussian quadrature
To write a Matlab program using Gaussian quadrature (Gauss-Legendre rule), first you need to
know the weights ci and nodes xi . A typical table of Gauss-Legendre rule looks like the following:
n (# of points)
2
3
4
xi
ci
0.577350269189

Homework 5
Course: ECI 115 (Winter Quarter, 2016)
Dated: February 04, 2016
Due Date: February 11, 2016 (5:00p.m.)
Instructions
Please drop-off the homework solution in the homework drop-box on the second floor of
Ghausi Hall by the due date. The homeworks

Homework 3
Course: ECI 115 (Winter Quarter, 2016)
Dated: January 21, 2016
Due Date: January 28, 2016 (5:00p.m.)
Instructions
Please drop-off the homework solution in the homework drop-box on the second floor of
Ghausi Hall by the due date. The homeworks c

Homework 4
Course: ECI 115 (Winter Quarter, 2016)
Dated: January 28, 2016
Due Date: February 04, 2016 (5:00p.m.)
Instructions
Please drop-off the homework solution in the homework drop-box on the second floor of
Ghausi Hall by the due date. The homeworks