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 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 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 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
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  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 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
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 _
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  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
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
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 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,
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
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
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
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!
[email protected]!
Impact of Tower Spacing
(Masters)
Wind Power Plant Configuration
(Masters)
3 D to 5D
5 D to 9
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ECE 333, SP 2017
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Quiz 3
1. The diagram depicts a pn junction diode.
1 a. Mark the xed charge polarities in the p and ntype materials in the circles.
7f b. Mark the free charge polarities in squares.
7? c. Draw and
. gee 32.2
_. __ _ _
I 7.13 The 2013 "low wind turbine pricing in Table 7.6 uses a 1.62 MW turbine with an Installed cost
. I of $2025/kw with a 100m rotor diameter. '
,_ a. At a site with 6 mls Rayleigh winds at SOrn, estimate the energy this turbin
ECE 333, SP 2017
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Midterm Exam 2
1. Power system history:
a. T. Edison and G. Westinghouse advocated AC and DC power systems respectively.
(1) (4 pts) List 1 pro 8: 1 can for Edison's approach. [Not suffl
Q6 3?; [Wavy/C 9
8.8 Suppose 200 gal/min of water is taken from a creek and delivered through
800 ft of 3in diameter PVC pipe to a turbine 100 ft lower than the source. If the
. turbine/generator has an efficiency of 40%
a. Find the electrical power th
ace 333, 59 2017
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FIRST NAME UIN
Midterm Exam 1
1. (25 pts) Two balanced 3phase Yconnected loads are connected in parallel. One is Yconnected and
draws 75 kw (3phase) at 0.8 power factor lagging. The other draws