Lecture Objectives:
- Discus Final Project
- Learn about Solar Systems
- HW3 (final HW assignment)
- HVAC system
Final Project Topics
• You need to form groups:
– Maximum 3 members
– Grad Students – individual projects
• You need to visit me during this week
– Office hours: Today, Wednesday, Thursday, and
Friday
• You need to prepare the project description
– Till Tuesday next week (November 17th)
Final Project Topics
• Solar Systems
– Expand HW3 (PV and hot water)
•
Geothermal systems
– Incorporated into the eQUEST
• Building Envelope Optimization
– Campus buildings, AEI competition, ….
• HVAC systems
– Campus buildings, AEI competition, ….
• Lighting Systems
– Specific building in eQUEST or other software
• Modeling in matlab
– Weep holes, attic temperature, façade systems,….
Solar hot water system
Geothermal Energy Systems
(in combination with a cooling machine / heat pump)
Summer
In the summer, the earth acts as a cooling
tower. The Cooling Machine loads the loop
with heat, sending warmed water to be cooled
by the earth
Winter
In the winter, the earth acts as the boiler. The Heat
Pump extracts heat from the loop, sending cooled
water to be warmed by the earth.
Envelope optimization
• AEI Student Competition
• A mixed use boiling in New York
• Some other building, too
HVAC Systems
Ventilation, Heat Recovery, Economizers,…
AEI Student Competition Building or some other
Commercial buildings
Residential buildings
Saving % - depends on how much ventilation we have in the building
Results from Project 1
Example of building tune-up
A typical house in Austin New single family 2262 sf, 2-story home
18000
Miscellaneous
15620 kWh
Washers
16000
Range
Refrigerator
14000
Lighting
12862 kWh
11304 kWh
12000
Dryer
Hot water
Heating
Cooling
10000
8000
7086 kWh
6000
4000
2000
0
2000
2006
2010
target (2015)
Project Fixing
Problematic Building at UT
• Example of ECJ building
Electric energy consumption [kW]
Steam consumption
[106
lb of steam]
250,000.00
1400
200,000.00
1200
1000
150,000.00
800
100,000.00
600
400
50,000.00
200
0.00
0
SEP OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG
SEP OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG
Ton-h of chiled water
250,000.00
200,000.00
150,000.00
100,000.00
50,000.00
0.00
SEP OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG
Final Projects
• Your choice of topics
– Visit me during office hours
• One possible topic AEI Student Competition
• A mixed use boiling in New York
• http://www.asce.org/architectural-engineering/aei-student-competition/
• http://content.asce.org/files/pdf/8-10-15_Final_2016_Program_AEI_Competition_1.pdf
»
»
/Organizational/Department/Engineering Programs/AEI/AEI STUDENT DESIGN COMPETITION/AEI Student Design Competition 2016/AEI Student Design
Competition 2016 Project Drawings
/Organizational/Department/Engineering Programs/AEI/AEI STUDENT DESIGN COMPETITION/AEI Student Design Competition 2016/2015 Winning Teams
Submissions
HW3
Solar systems
PV system
Silicon crystal base
Tin film
Hot Water Solar
HW3
Redefine house in Project 1 to be more realistic.
a) Find the optimum orientation and positioning angle for
your PV solar collectors.
b) Size the PV system that will enable that your house
became net zero energy house.
c) Add an electric hot water heater and calculate the new
PV system size.
d) Size a hot water solar collector system for your hot water
consumption.
e) Calculate the number of days when you need to use
electric heater and how much energy is consumed by the
backup electric heater.
eQUEST HVAC Models
• Predefined configuration (no change)
• Divided according to the cooling and heating sources
• Details in e quest help file:
For example:
DX CoilsNo Heating
–
Packaged Single Zone DX (no heating)
•
–
Packaged single zone air conditioner with no heating capacity, typically with ductwork.
Split System Single Zone DX (no heating)
•
Central single zone air conditioner with no heating, typically with ductwork. System has indoor fan and cooling coil and remote
compressor/condensing unit.
–
Packaged Terminal AC (no heating)
–
Packaged VAV (no heating)
•
Packaged terminal air conditioning unit with no heating and no ductwork. Unit may be window or through-wall mounted.
DX CoilsFurnace
•
Packaged direct expansion cooling system with no heating capacity. System includes a variable volume, single duct fan/distribution
system serving multiple zones each with it's own thermostatic control.
–
Packaged Single Zone DX with Furnace
–
Split System Single Zone DX with Furnace
•
•
–
Central packaged single zone air conditioner with combustion furnace, typically with ductwork.
Central single zone air conditioner with combustion furnace, typically with ductwork. System has indoor fan and cooling coil and remote
compressor/condensing unit.
Packaged Multizone with Furnace
•
Packaged direct expansion cooling system with combustion furnace. System includes a constant volume fan/distribution system serving
multiple zones, each with its own thermostat. Warm and cold air are mixed for each zone to meet thermostat control requirements.