Hazard Community & Technical College
Air Conditioning Technology Program
Syllabus
Name and number of Course:
Semester/Year/Time:
Instructor:
Office Location/Number:
Office Hours:
Email Address:
Telephone Number:
Heat load/duct design, ACR 170
Fall 2007 MW 9:30-10:45
Doug Adams
Technical Campus, Devert Owens Building, 100,101
M-F 7:45-8:00 & 3:30-4:00
adams.doug@kctcs.edu
606-487-3300
COURSE DESCRIPTION
Introduces the fundamentals needed to calculate heat gain and heat loss, thereby
determining air conditioner/furnace size. This information will be used to calculate the
correct duct size. Procedures to layout a duct system as outlined in ACCA MANUAL D
are presented.
PREREQUISITES
None
TEXTBOOK INFORMATION
Manual J, Manual D, Duct slide rule.
OBJECTIVES/COMPETENCIES/LEARNING OUTCOMES
Upon completion of this course, the student can:
1.
Define "U" value.
2.
Define "K" value.
3.
Define "C" value.
4.
Define "R" value.
5.
Interpret heat transfer tables ("U", "K", "C", "R").
6.
Calculate total heat transfer valve of any surface (R) - (U).
7.
Explain the heat load sources: conduction, infiltration, product, misc. loads (people, motors,
equipment).
8.
Explain the purpose of vapor barriers.
9.
Interpret tables of specific heat values, latent heat, and heat of respiration.
10.
Identify various points on a psychrometric chart.
11.
Calculate: refrigeration sensible heat ratio, contact factor, latent heat, sensible heat, total heat,
water removal, mixed air condition.
12.
Explain: specific humidity, apparatus dew point, contact factor, relative humidity, dry bulb, wet
bulb, dew point, and enthalpy.
13.
Determine total resistance to heat flow ("R"), ("U").
14.
Interpret structure design data.
15.
Interpret building prints - size of rooms, etc.
16.
Calculate conduction loss for: walls, roof, floors, windows, basement (walls, floor),
unconditioned space.
17.
Calculate infiltration: doors, windows.
18.
Calculate ventilation load.
19.
Calculate duct loss.
20.
Interpret structure design data.
21.
Calculate "U" values for building materials.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
Calculate CLTD (cooling load temperature difference).
Make corrections for CLTD.
Calculate conduction loads for: walls, roofs, windows, doors, non-conditioned space, floors.
Calculate lighting load.
Determine size of equipment needed.
Calculate infiltration and ventilation.
Calculate duct gain.
Calculate refrigeration sensible heat ratio.
Practice/observe safety procedures/techniques.
Draw layout of return and supply runs.
Calculate equivalent length of trunk and branch ducts.
Calculate total effective length of duct runs.
Calculate total available static pressure.
Size trunk and branch ducts by equal friction method.
Use duct calculator to find duct size, velocity, cfm, and friction loss.
Calculate air flow factors for heating and cooling.
Size registers, grilles, and diffusers.
Identify types of mechanical filters: disposable, permanent foam, mesh, fiber, and high efficiency.
Explain how to install air cleaner system into existing ductwork.
Identify different types of fans: centrifugal, axial, etc.
Determine the direction of rotation.
Check for proper rotation.
Explain the difference between tubeaxial and vaneaxial.
Interpret the fan curve.
Select the fan via the curve.
Check fan performance via curves.
Identify the types of centrifugal fans: forward curved, backward curved, air foil, and radial tip.
Determine air velocity within a duct via: pitot tube and inclined manometer.
Determine air velocity at grills and diffusers via: deflecting vane anemometer, velometer, hot wire
anemometer, pitot tube, and rotating vane anemometer.
General Education Competencies
I. Communicate Effectively
1. Read and listen with comprehension.
2. Speak and write clearly using standard English.
3. Interact cooperatively with others using both verbal and non-verbal means.
4. Demonstrate information processing through basic computer skills.
II. Think Critically
1. Make connections in learning across the disciplines and draw logical conclusions.
2. Demonstrate problem solving through interpreting, analyzing, summarizing, and/or
integrating a variety of materials.
3. Use mathematics to organize, analyze, and synthesize data to solve a problem.
III. Learn Independently
1. Use appropriate search strategies and resources to find, evaluate, and use
information.
2. Make choices based upon awareness of ethics and differing perspectives/ideas.
3. Apply learning in academic, personal, and public situations.
4. Think creatively to develop new ideas, processes, or products.
All objectives/competencies will be assessed through performance drills, applications, and
exams.
ATTENDANCE POLICY
See evaluation for attendance policy.
INCLEMENT WEATHER POLICY
During periods of inclement weather, all classes scheduled BEFORE 9:30 a.m., will be
cancelled. Students will be asked to report at 9:30 for their 9:30 classes. The classes that
are cancelled will be made up according to a manner that the individual faculty member
has determined and which has been approved in advance by the appropriate Division
Chair and Dean; this makeup policy should be clearly stated in the course syllabus.
ACADEMIC HONESTY POLICY
KCTCS faculty and students are bound by principles of truth and honesty that are
recognized as fundamental for a community of teachers and scholars. The college
expects students and faculty to honor, and faculty to enforce, these academic principles.
The college affirms that it will not tolerate academic dishonesty including, but not limited
to, violation of the academic rights of students (section 2.0) and student offenses (section
3.0).
Complaint/Appeal Procedure (**Required for all faculty teaching eLearning
Classes, optional for all other faculty.)
1. Division Chair: Neil Brashear.
2. Academic Dean. Lelia Smith
3. Vice President of Academic Affairs / Provost: Dr. Kathy Smoot
For information about academic rights and academic offenses and the student’s right to
appeal, students should be referred to the KCTCS Code of Student Conduct found on-line
at http://www.kctcs.edu/student/code.htm/
WITHDRAWAL POLICY
Students may withdraw up to midterm and receive a grade of “W” without the
instructor’s permission. After midterm, and up until the last day of class, any student
may officially request a W grade, which may be given at the discretion of the instructor.
Each instructor shall state on the first or second class meeting the factors to be used in
determining the assignment of a W grade during the discretionary period. An instructor
shall not assign a student a W grade for a class unless the student has officially
withdrawn from that class. You should clearly state your withdrawal policy from
midterm up until the last day of class. If students do not officially withdraw before the
last day of class, they must receive a grade of “E”.
Accommodations Policy
Students needing accommodations should contact the local disabilities service
representative to complete an Accommodations Plan which will ensure that the student
receive full benefits and that the instructor is aware and can make the proper adjustments
in his/her courses for the student. Hazard Community & Technical College contacts are
as follows: Hazard Campus, Knott County Branch, Leslie County Center, and the
Technical Campus – see Doug Fraley and at the Lees College Campus – see Cluster
Howard.
**Add the additional statement to the Accommodations Policy for all eLearning courses
(Web-enhanced, local, hybrid, or all online)
Every effort is being made to meet the ADA 508 and W3C guidelines but if you find any
distance learning class to be limiting in any way please contact the course instructor and
the Disability Services Representative, Hazard Community and Technical College, One
Community College Drive, Hazard, KY 40351; phone (606)-487-3086; email:
doug.fraley@kctcs.edu.
EVALUATION METHODS
Course Evaluation will consist of three areas with each area worth 100 points. The final
grade of each area will be averaged together to render the final grade for the course. The
areas and an explanation of each are as follows:
1. Attendance – You are expected to attend all classes. If the need for absence arises the
instructor expects to be notified before the impending absence. An excused absence is
death in the immediate family, hospital stay, doctor’s excuse, or pre-approved absence by
the instructor. A total of three excused absences will be given for the course. Beyond the
three excused absences will be considered unexcused regardless of the reason. Each
unexcused absence will lower the attendance grade by 25% with four unexcused absences
resulting in a grade of zero for the attendance portion of the final grade. If a student is
tardy two times it will result in an unexcused absence. Exception: related cooperative
experience that is pre approved by the instructor.
2. Test and Quiz – Any quizzes given through the course will be averaged together and
count as a major test. All major tests will be averaged together to give a final grade for
the test and quiz area. Any test missed will be made up during the next scheduled class
meeting. Quizzes may not be made-up. Students are required to make up all exams and
assignments missed. It will be the responsibility of the student to call attention to missed
test and assignments.
3. Portfolio – Each student will maintain a portfolio that should be kept in a three ring
binder in a neat and orderly fashion. Tabs will be used to separate the areas of the
portfolio into: classroom handouts, lecture notes, lab journal, and assignments. Portfolio
progress will be evaluated at various points throughout the semester.
Course Evaluation Summery:
Attendance 33.3%
Test/Quiz
33.3%
Portfolio
33.3%
Total
100%
The grading scale is as follows:
90 – 100 A
80 – 89
B
70 – 79
C
60 – 69
D
Below 60 F
Make-up Policy
Any test missed will be made up during the next scheduled class meeting. Quizzes may
not be made-up. Students are required to make up all exams and assignments missed. It
will be the responsibility of the student to call attention to missed test and assignments.
Class policies
Students are expected to take part in class. Students are expected to be prepared for class
(notebook, textbook, lab book, pen/pencil, calculator, handtools). A notebook must be
kept and be neat and organized including all handouts and drawing. Cell phones are to be
turned off and not used during class. No food or drinks are allowed in class.
Course Outline
1.
Safety
2.
Theory
3.
Infiltration
4.
Cooling load
5.
Heating load
6.
Duct design
7.
Duct layout
Checking Your KCTCS E-Mail
As a student of the KCTCS System, you have been issued a login ID and password. NOTE: this
is a different login from the one described with the Web class account. E-mail is an integral part
of the distance learning process as well as your everyday process as a student of Hazard
Community and Technical College. As you get grade information, class registration, and other
related information on your email account. In addition all of your KCTCS information will come
through student E-mail.
Click on the following link to check your e-mail:
https://webmail.kctcs.edu/exchange/
Enter the student ID number and password you were provided when prompted in the following
format: The login entry is the domain name (KCTCSACC), followed by a "right slash" (/),
ending with the PeopleSoft student ID that you were given during registration.
Login: KCTCSACC/jdoe0001
Password: yourpassword (whatever the password is)
*For more information about student email, go to the following site:
http://www.kctcs.edu/student/email.html
LEARNING OPPORTUNITIES
THIS COURSE WILL CONSIST OF BOTH PLANNED CLASSES AND
INFORMAL TEACHING AND LIVE WORK JOBS. YOU CAN LEARN MUCH BY YOUR
OWN OBSERVATION, IF YOU KEEP YOUR MIND ACTIVE AT ALL TIMES. HOW
MUCH YOU LEARN WILL BE ENTIRELY UP TO YOU. YOU WILL BE GIVEN THE
OPPORTUNITY ---- YOU MUST TAKE ADVANTAGE OF IT YOURSELF. THE
PLANNED INSTRUCTION WILL CONSIST OF CLASSES, DEMONSTRATIONS AND
OTHER LEARNING EXPERIENCES THROUGHOUT THE PROGRAM.
INFORMAL LEARNING WILL GO ON CONSTANTLY, LARGELY TO THE EXTENT OF
YOUR PARTICIPATION. LEARNING IS AN ACTIVE PROCESS AND YOU CANNOT
ACQUIRE IT IF YOU PLAY A PASSIVE ROLE.