346N: Building Environmental Systems Dr. Siegel Objectives Demonstrate knowledge of syllabus and ground rules Participate in class with CPS Describe scope of BES Critically analyze conservation claims Introduction to course themes Address any of your concerns

CPS demonstration 1) What is my dog’s name? Sparky Rex Fido Spot Garfield

Motivation Who are you? Why are you here? 2) What is your primary interest? Structures Construction engineering/Project management Building environmental systems (HVAC) Design/CAD Something else (specify)

Real world questions It is 4pm on the day before you need to submit the plans. Your mechanical engineer comes to you and tells you that that the structural change that you approved will cost $50K in additional ducts and equipment. What do you do? A salesperson tells you that changing your dropped ceiling and roof insulation strategy is guaranteed to save you 1/3 of your building energy costs. Your roofing contractor tells you that it is impossible to build the roof in the specified manner without causing moisture problems. Who should you believe?

Buildings Responsible for ~35% of energy consumption 90% of our time is spent indoors Construction is one of the largest industries in the world Environmental systems are a central part of every building

The University of Texas at Austin Fall 2004 Dept. of Civil Engineering Architectural Engineering Program Course: Building Environmental Systems, ARE 346N Unique Number (3 hrs.) Prerequisites: Physics 303L and 103N (ME 320/326 recommended) Professor: Dr. Jeffrey Siegel ECJ, Rm. 5.302 512-471-2410; LAB 512-471-9688; FAX 512-471-3191 e-mail: jasiegel@mail.utexas.edu http://www.ce.utexas.edu/prof/siegel/home.html Office Hours: Tuesday, Thursday 9:00 – 10:00 a.m., Tuesday 3:30 -5:00 p.m. Contacting me Web site not operational yet Office – come see me, come see me, come see me, Call me. Fax me. E-mail me if youmust. Fine for quick answers, to let me know that you are going to miss a class

Prerequisites 3) ECE 331: Electrical Circuits I already took it I have not taken it I am currently taking it I do not plan on taking it I took the equivalent somewhere besides UT

Prerequisites? 4) ME 320/326: Thermodynamics I already took it I have not taken it I am currently taking it I do not plan on taking it I took the equivalent somewhere besides UT

My Quirks Please don’t come to my office between 10 am and 3:30 pm on Tuesday and Thursday Class preparation and teaching time Please don’t use e-mail to ask me “content” questions Call me or come see me I care about your learning I listen to your comments The more specific the better

Course Objectives By taking this class you will be able to: Describe the role of building environmental systems in building planning and design Research and critically analyze claims about building environmental systems made by salespeople, subcontractors, and building designers Calculate building heating, ventilating, and air conditioning loads and specify HVAC equipment for residential and light commercial construction. Acquire design requirements for building electrical systems and design basic systems List characteristics of different lamps, describe building lighting designs and their consequences and demonstrate knowledge of lighting design principles First is overall theme – relevant to everyone 2nd also relevant to everyone example of mechanical engineer resisting your change Project manager- knowledge of planning for BES stages 4 main areas – HVAC, electrical, lighting, plumbing Noise control and acoustics – if we have time

Preparation for ARE 465 Capstone design seminar Prepare you for BES portion Background material Resources Calculation familiarity

“Textbooks” Trost, J., (1999), Efficient Building Design Series Volume 1: Electrical and Lighting, Prentice Hall. CPS remote. Available for checkout from the library or for purchase from the bookstore. Textbook: Tao and Janis -Good reference source -(relatively inexpensive) -fewer errors Stein and Reynolds- comprehensive, but many errors BES bibliography – continuously adding to the list with commentary ASHRAE – professional organization – the reference

Why CPS? Educational literature suggests that it improves student learning ASEE paper Student responses in CNS indicate it helps learning Active, participatory classroom http://www.einstruction.com (students, UT) Class Key: R2710P487 Serial Number: From Remote (i.e. 1030F4)

Dr. Siegel should use CPS for this class in the future

5) Have you used CPS in a class at UT before Yes in Physics Yes in Engineering Yes in something else No

Textbook for HVAC portion of class No ideal textbook You need to get one of the following three books

ASHRAE 2001 ASHRAE Handbook: Fundamentals. IP or SI edition, hard copy or CD In reference section of Engineering Library 1997 editions on 2 hour reserve Note that it is much cheaper to become a member of ASHRAE to get this text. We will use IP units Great and very complete reference Few examples, very hard to read, cheap (to ASHRAE student members) Most appropriate for those who want the industry-standard reference and intend on having BES be a part of their future

ASHRAE Membership ASHRAE is predominant BES Society IESNA, NFPA Cheap way to get textbook http://www.ashrae.org/ Student Zone Student application http://www.ashrae.org/content/ASHRAE/ASHRAE/ArticleAltFormat/2004823125658_347.pdf Needs my signature (part of assignment zero)

Tao and Janis (2004) 3rd Edition Just arrived in July Improved over previous version, but still far from perfect Some (but not enough) examples Some outdated material Some confusing descriptions Some incorrect (or hard-wired) formulae Good complement for Trost textbook for first portion of class Most appropriate for those who want one textbook for ARE465 and won’t be doing BES after graduation

Mcqusiton, Spittler, Parker (2000) Common textbook for undergraduate HVAC class Good descriptions Most examples Much more in-depth than we will use Not used for HVAC design classes here at UT You should get this if you want a readable text on HVAC and have the initiative to fine the relevant sections yourself Complements ASHRAE Fundamentals

Topics Background and Introduction 1 wk Electrical Systems 2 wks Lighting Introduction and Equipment 2 wks Lighting Design 1 wk HVAC Systems – Motivation and Basics 1 wk Heating and Cooling Load Calculations 1 wk Heating and Cooling Equipment 2 wks Air Systems and Delivery Equipment 2 wks Plumbing/Acoustics 1 wk 13 wks Priorities HVAC first Lighting Second Electrical Plumbing and Noise control - important, but we don’t have time New professors

Grading Quizzes 10% Midterms 25% Projects 15% Homework Assignments 20% Participation 5% Final Exam 25% 100% Quizzes – 9 of them – every Wednesday (unless otherwise noted) Midterm October 16th, Wednsday Project Homework (every week or two) – if you do the homework and come to class – Participation – 5% internet resources, completing homework assignment, participating in class discussions, coming to see me, fieldtrips and guest speakers Final Exam – sorry about the time

Final Exam Optional IF You get a C (70%) or better on both midterms You give me written notification (e-mail doesn’t count) by December 2nd at 5pm If you meet the above criteria and don’t take the final, your midterm grade will represent 50% of your final grade

Participation My assessment of your participation in the class 5% of total grade How to get participation points Come to class and be on time Submit all assignments/projects on time Participate in class (verbal/CPS) Come see me in my office Participate in all field trips (during class time)

How CPS will affect your grade I do not use your response to questions in determining your grade. I do assign participation grade based on CPS responses if you Show up to class on-time (answer first question) Are present for all classes (as measured by your use of CPS)

Attendance was crucial for success in this class

Important Dates (corrected) Midterm 1: Tuesday 5 October Midterm 2: Tuesday 16 November Project 1 Due: Tuesday 2 November Project 2 Due: Thursday 2 December Final Exam: Saturday, December 9 9:00 am - 12:00 noon, room TBA No classes on Thursday 25 November due to Thanksgiving holiday.

TENTATIVE COURSE SCHEDULE Date Topic Assigned Reading Alternative 8/ 26 Course introduction and terminology (no quiz) Tao Ch.1 8/31,9/2 BES background and electrical systems introduction Trost Ch. 8, 9 Tao Ch. 10 9/7,9/9,9/14 Electrical system design Trost Ch. 10, 11, 12 Tao Ch. 11, 13 9/16 Lighting introduction Trost Ch. 1, 5 Tao Ch. 14 9/21,9/23 Lighting equipment Trost Ch. 2, 3 Tao Ch. 15 9/28,9/30 Lighting calculations and design Trost Ch. 4, 6, 7 Tao Ch. 16, 17 10/5 Midterm 1 10/7 Project assignments (no quiz) 10/12,10/14 HVAC fundamentals and psychrometrics ASHRAE Ch. 6 (8) Tao Ch. 2 10/19,10/21 Heating and cooling loads ASHRAE Ch. 28-29 (23-27, 30) 10/26,10/28 Heating systems (ASHRAE Ch. 18) Tao Ch. 5 11/2,11/4 Cooling systems , Project 1 due 11/2 (ASHRAE Ch. 1,19-20) Tao Ch. 4 11/9,11/11 Air systems Tao Ch. 3 11/16 Midterm 2 11/18,11/23 Field Trips 11/30,12/2 Plumbing, acoustics, and review Project 2 due 12/2 (no quiz 12/2) Tao Ch. 8, 18 Note funny ordering of chapters Air systems – ventilation and IAQ controls Additional review before midterm Project assignment Lighting

Class Website Look at Assignments sections http://www.ce.utexas.edu/prof/siegel/classes/ARE346N/ Look at Assignments sections Date is in filename (i.e. 346N_082604) Use PDFs – can cut and paste text, follow links PLEASE LET ME KNOW ABOUT ERRORS Used prometheus

Any Questions ?

6) My learning in this class will be helped most by: Readings Lectures In-class questions and answers Homework Not sure

7) My learning in this class will be hindered most by: Readings Lectures In-class questions and answers Homework Not sure

8) Participating (such as small group work or asking questions) in an engineering class is: Very important to me Somewhat important to me Not important to me

9) On the average in my engineering classes I ask questions: Every class period Frequently Seldom

10) On the average in my engineering classes, I receive in-class feedback on my progress as a learner: Every class period Frequently Seldom

11) I typically find that engineering instructors who are successful in bringing about student participation do so in class by: Assigning group work Asking questions In class quizzes Something else (specify)?

Cooking Cooling Heating Lighting Office Equipment Other Refrigeration Ventilation Water Heating HVAC is largest component of energy use Lighting is second Lighting might be smaller portion – including cooling to make up for heat of lighting Energy isn’t only criteria, Source: DOE

12) What Building System is Responsible for the Most Energy Use? Refrigeration/Office Equipment/“plug loads” Lighting HVAC Water Heating Refrigeration

13) What Building System is Responsible for the Most Energy Use? Appliances/Office Equipment/“plug loads” Lighting Water Heating Refrigeration

Source: DOE HVAC is largest component of energy use Lighting is second Lighting might be smaller portion – including cooling to make up for heat of lighting Energy isn’t only criteria, Source: DOE

Scope of Environmental Systems Ref: Tao and Janis (2001)

More expensive then Ref: Tao and Janis (2001)

Ref: Tao and Janis (2001)

SO2 NO2 http://www.epa.gov/oar/oaqps/emissns.html

Impact of ECJ 1.2 × 105 ft2 floor area 8 W/ ft2 electrical use (assumed) 3.5 × 103 hours of operation per year (assumed) 3.4 × 106 kWh/yr electrical energy use If electricity came from Austin Energy 1/3 each nuclear, coal, natural gas 2200 tons CO2/year 11 tons SO2/year, 8.5 tons/ NOx/year

Assignment 0 Learning styles Blackboard Researching and using references Background material Due on Tuesday Fair game for quiz on Thursday (as is material on syllabus)