7.3 The analysis of a tidal power facility is similar to that fora normal wind turbine.
That is, we can still write P = 1/2 pA v3 but now p= 1000 kg/m3 and v is the speed
of water rushing toward the turbine. The following graphs assume sinusoidally
varyin
ECE 333 Green Electric Energy
Homework 5 Solution
Solve the following problems:
Text: 7.10, 7.11 (skip part c,d), 7.13, 7.14 (skip all calculation about MACRS)
P496 7.10
Solution
a. consider the information in table 7.5, the capacity factor is given by
c
ECE 333 Homework 6 Solutions : Spring 2010
1 Find the altitude angle and azimuth angle of the sun at the following (solar) times and places: The following equations will be used for each part of this problem: 360 1 cos sin H = 23.45 sin n 80 (7.6) sin = c
ECE 333 Homework 3 Solutions : Spring 2010
1 A 345kV threephase line supplies 750 MVA at 0.8 pf lagging to a threephase load which is delta connected. It is easiest to solve this problem in reverse order. d. Compute the total complex power. S 3 !750 !
ECE 333 Green Electric Energy
Quiz 3
Tuesday, October 8, 2013 during class
15 minutes
Name:_
UIN: _
Closed Book and Closed Notes
No cellular phones allowed
Solve problem 1
Show all your work and always indicate the units, as appropriate
Problem 1: [30 poi
ECE 333  Spring 2014  Homework 8
Assigned: March 13, 2014
Quiz date: N/A, Exam 2, March 20, 2014, 89:20 a.m. in 100 MSEB
Assigned reading: Masters, Sections 5.45.6
Problems:
1. Masters, problem 5.2: For the simple equivalent circuit of a 0.017 m2 PV c
ECE 333 Homework 5 Solutions : Spring 2010
1 Suppose an anemometer mounted at a height of 10m on a level field with tall grass shows an average windspeed of 6 m/s. a) Assuming Rayleigh statistics and standard conditions (15o C, 1 atm), estimate the avera
ECE 333  Spring 2014  Homework 8
Assigned: March 13, 2014
Quiz date: N/A, Exam 2, March 20, 2014, 89:20 a.m. in 100 MSEB
Assigned reading: Masters, Sections 5.45.6
Problems:
1. Masters, problem 5.2: For the simple equivalent circuit of a 0.017 m2 PV c
ECE 333 Green Electric Energy Spring 2010
Homework 2
Due Date: Thursday February 4, 2010 Reading: Sections 2.12.6 in Chapter 2 of Masters Problems: 2.2, 2.4, 2.7, 2.9, 2.10 of Masters
ECE 333 Green Electric Energy Spring 2010
Homework 5
Due Date: Thursday March 11, 2010 Reading: 1. Sections 6.86.12 in Chapter 6 of Masters. 2. R. Thresher, M. Robinson, and P. Veers, To Capture the Wind, IEEE Power and Energy Society Magazine, vol. 5, n
ECE 333  Spring 2014  Homework 10
Assigned: April 10, 2014
Quiz date: April 17, 2014
Assigned reading: Masters, Sections 3.8, 7.17.3.4
Problems:
1. Masters, problem 3.16: Consider the balanced threephase system with the three loads and phase
currents
ECE 333 Green Electric Energy Spring 2010
Homework 7
Due Date: Tuesday April 20, 2010 Reading: 8.1, 8.38.7 in Chapter 8 of Masters. Optional: 8.2, 8.8 and 8.9 in Chapter 8 of Masters Problems: 8.3, 8.4, 8.5, 8.6, and 8.8 of Masters
ECE 333 B
Prof OConnell
Homework 6
Michael Diehl
MTDIEHL2
Thu, Mar 3, 2016
1. Use equation (4.6) to predict the dates for each of the following:
(a) The two equinox dates
Answer:
0 =
360
(n 81)
0 = 23.45 sin
180 =
365
360
365 (n
81) n = 81 March 22
36
Name _
Net id _
FORM B
FSHN 101: Introduction to Food Science and Human Nutrition
Hour Exam 1: Introduction and Nutrition and Health Section
Fall Semester 2011: Friday, September 16, 2011
Description: This is an exam over what you have learned during the
Name _
FORM A
FSHN 101: Introduction to Food Science and Human Nutrition
Hour Exam 1: Introduction and Nutrition and Health Section
Spring Semester 2010: Friday, February 12, 2010
Description: This is an exam over what you have learned during the first se
ECE 333 Green Electric Energy Spring 2010
Homework 4
Due Date: Thursday February 18, 2010 Reading: Sections 6.86.12 in Chapter 6 of Masters. Review basic probability concepts from your favorite probability book. Problems: 6.1, 6.2, 6.3, and 6.4 of Master
ECE 333  Spring 2014  Homework 9
Assigned: April 3, 2014
Quiz date: April 10, 2014
Assigned reading: Masters, Sections 5.8, 3.8, 3.9
Problems:
1. Consider the maximum power point tracking problem (MPPT) below.
IP V
Iload
+
PV Array
Rated Conditions
+
MP
Name _
Net id _
FORM C
FSHN 101: Introduction to Food Science and Human Nutrition
Hour Exam 1: Introduction and Nutrition and Health Section
Fall Semester 2011: Friday, September 16, 2011
Description: This is an exam over what you have learned during the
ECE 333 Homework 2 Solutions : Spring 2010
2.2 A 120V, 60 Hz source supplies current to a 1 F capacitor, a 7.036 H inductor and a 120 ! resistor, all wired in parallel (illustrated in Figure P 2.2). a. Find the rms value of current through the capacitor,
ECE 333 Homework 7 Solutions : Spring 2010
1 For the simple equivalent circuit for a 0.005 m2 photovoltaic cell shown in Figure P8.3, the reverse saturation current is I0 = 109 A and at an insolation of 1sun the shortcircuit current is ISC = 1 A. At 25
N ame

Net id _ _
F ORMA
F SHN 101: Introduction to Food Science a nd H uman N utrition
H our E xam 1: Introduction a nd N utrition a nd H ealth Section
Spring Semester 2011: Friday, F ebruary 11,2011
Description: T his is a n e xam over w hat y ou h ave
FORM A
FSHN 101: Introduction to Food Science and Human Nutrition
Hour Exam II: Food Chemistry and Composition
Fall Semester 2009: Friday, October 16, 2009
Description: This is an exam over what you have learned during the second section of the course. Th
Name _
Net id _
FORM A
FSHN 101: Introduction to Food Science and Human Nutrition
Hour Exam 1: Introduction and Nutrition and Health Section
Fall Semester 2011: Friday, September 16, 2011
Description: This is an exam over what you have learned during the
FORM A
FSHN 101: Introduction to Food Science and Human Nutrition
Hour Exam III: Food Microbiology and Processing
Fall Semester 2009, Friday, November 13, 2009
Description: This is an exam over what you have learned during the second section of the course
ECE 333 Homework 1 Solutions : Spring 2010
1.6 A 52gallon electric water heater is designed to deliver 4800 W to an electric resistance heating element in the tank when it is supplied with 240 V (it doesn't matter if this is ac or dc). a. What is the res
ECE 333 Homework 4 Solutions : Spring 2010
1 A horizontalaxis wind turbine with rotor 20 meters in diameter is 30percent efficient in 10 m/s winds at 1 atmosphere of pressure and 15o C temperature. a. How much power would it produce in those winds? # 1
1. Which of the following is/are true concerning introns?
(A) The sequence of nucleotides found in introns are not known to represent anything usable by the cell.
(B) All the choices are true except for saying that introns do not represent anything usable
ECE 333 Green Electric Energy
Lecture 13
Wind Power Plants
Alejandro D. DominguezGarcia!
Department of Electrical and Computer Engineering!
aledan@illinois.edu!
Impact of Tower Spacing
(Masters)
Wind Power Plant Configuration
(Masters)
3 D to 5D
5 D to 9
ECE 333 Green Electric Energy
Fall 2017
Prof. George Gross
Room 4052 ECEB
Homework 3
The solutions will be released on Monday, October 9, 2017
Quiz Date: Thursday, October 12, 2017 during class
The quiz is based on the following material: Lecture 7, Lectu
ECE 470: Introduction to Robotics
Homework #3
Due: Thursday, Oct. 5, 2017.
ECE 470: Introduction to Robotics
Homework #4
Due: Thursday, Oct. 12, 2017.
This homework should provide you with practice solving inverse kinematics problems.
The Assignment
Solv
ECE 333 Green Electric Energy
Fall 2017
Prof. George Gross
Room 4052 ECEB
Homework 1
due Thursday, September 21, 2017
Quiz Date: Tuesday, September 26, 2017 during class
Suggested study materials for the quiz: Lecture delivered by Prof. Sauer, Lecture 1,
ECE 470: Introduction to Robotics
Homework #3
Due: Thursday, Oct. 5, 2017.
ECE 470: Introduction to Robotics
Homework #4
Due: Thursday, Oct. 12, 2017.
This homework should provide you with practice solving inverse kinematics problems.
The Assignment
Solv
ECE 333 Green Electric Energy
Fall 2017
Prof. George Gross
Room 4052 ECEB
Homework 2
The solutions will be released on Monday, October 2, 2017
Quiz Date: Thursday, October 5, 2017 during class
The quiz is based on the following material: Lecture 3, Lectur