Course introduction and examples - Department of Civil Engineering

The University of Texas at Austin Spring 2015
CAEE Department, Architectural Engineering Program
Building Energy Management Systems
Dr. Atila Novoselac
ECJ, 5.430
Office (512) 475-8175
e-mail: [email protected]
Office Hours:
Tuesday and Thursday 11:00 a.m. – 12:00 p.m.
Lecture Objectives:
Discuss syllabus
Describe course scope
Introduce course themes
Address your concerns
Start with review
Introduce yourself
• Name
• Background
• Academic program
• Interest and motivation for this course
Building Energy Management Systems
Comparison to HVAC Design course
Focus on systems
For large buildings and building complexes
More analyses based than just design
More independent project
Geared towards grad students
Course Objectives:
• Learn about advanced building energy and environmental
control systems.
• Obtain knowledge about district cooling and heating systems.
• Gain the skills and tools necessary to evaluate integration of
sustainable energy production systems to a given building site.
• Study application of combined heat and power systems in a
specific building or group of buildings.
• Conduct thermal, hydraulic and economic modeling of
integrated building energy systems for planning and design
Graduate students in CAEE, or other engineering
fields. Student should have at least one Fluid
Dynamics course and at least one Thermodynamics
course. HVAC Design course is desired but not
necessary. Undergraduate students interested in this
course will need permission from the instructor
Reading Assignment
• Kuehn, T.H.; Ramsey, J.W.; Threlkeld, J.L. 1998. Thermal Environmental
Engineering (3rd Edition) Prentice Hall ISBN: 0139172203.
• Taylor, S., P. Dupont, B. Jones, T. Hartman and M. Hydeman. 2000. Chilled
water plant design guide. San Francisco: Pacific Gas & Electric Company.
ASHRAE. 2007. ASHRAE Handbook--2007 HVAC Systems and Equipment.
Atlanta: American Society of Heating, Refrigerating, and Air-Conditioning
• ASHRAE Handbook--2009 Fundamentals. Atlanta: American Society of
Heating, Refrigerating, and Air-Conditioning Engineers.
• Handouts
• Journal papers
1. Class intro and HVAC systems review
1.5 wks
2. Building ventilation heat recovery systems
1 wks
3. Thermal (solar and waste heat) powered desiccant systems
1.5 wk
4. Centralized (compressor and sorption based) cooling systems 3 wks
5. Centralized heating systems
1.5 wk
6. District heating and cooling distribution systems
1 wk
7. Geothermal and low temperature buildings systems
1 wk
8. Combined cooling heat and power systems
1.5 wks
9. Systems integration and control
1 wk
Homework Assignments
Final Project & Presentation
Classroom Participation
> 93 A
90-93 A86-90 B+
83-86 B
80-83 B< 80 C-, C, C+
Course Website
All course information:
• Your grades and progress on Blackboard
• Look at assignments and handout sections
• Class notes posted in the morning before the class
Questions ?
Review – Example problems
• Thermodynamics (cycles)
• Heat pump example
• Psychrometrics:
• Swimming pool dehumidification
Focus on various operation conditions (not just design
Heat pump example
A recreation center
Swimming pool
Heat Pump
Ice Rink
Rejects heat energy
Consumes heat energy
Electric power
for a compressor
Ice Rinks
Energy flow
Swimming pools
Energy flow
Challenges for this problem
• Circulating fluid
• Adjustment of evaporation and condensation
• Adjustment of capacity for design condition
• Control of capacity for non design conditions
• Need to study load profiles
• Design sophisticated control
• Provide backup system
Example of capacity profile
(building cooling demand)