Solar Decathlon 07

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research opportunities and the georgia tech solar
decathlon
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Energy Sources and Sinks (1998)
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Decathlon Description

• International Competition US, Canadian and
  European
• Zero Energy Home Solar Powered
• Designed and built by University students
  faculty from 20 schools
• Interdisciplinary Teams architects, engineers,
  constructors, scientists, accountants, etc.
• House is tested in 10 separate contests judged by
  experts
• Designed, built and transported to the Mall in
  Washington, DC in October 2007.
• Each house is visited/toured by 150,000 people
  (on average)

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10 Contests
Architecture 200 points The Architecture
contest incorporates three facets Firmness
(suitability of skin, materials), Commodity
(facility of program integrated with function),
and Delight (comprehensive impression of
originality). Engineering 150 points Two
juries, Energy Analysis and Engineering
Design/Implementation, are used to decipher the
technological advancements to the Solar Decathlon
house. Market Viability 150 points The
Schools are evaluated on the potential market
appeal, facility of sale and production, and
broad consumer interest. In addition, the jurors
will asses energy production in relation to cost
efficiency teams must keep a close eye on the
check book. Communications 100 points Web
site development experts and public relations
experts will asses the effective delivery of
information from the ground up. The judges will
evaluate the two forms on their clarity of
information, consistent message, and facility in
interactive applications. Comfort Zone 100
points Teams must effectively design their
house to consistently achieve the predetermined
target temperature and humidity. The tight
temperature range of 72F/22.2C - 76F/24.4C)
and relative humidity of (40 - 55) are defined
as the optimal comfort zones. Appliances 100
points Washing and drying twelve towels for two
days cooking and serving three meals a day, then
washing the dishes after each meal for four days
and finally, running a TV/video player for up to
six hours and a computer for up to eight hours
for a total of five days. Hot Water 100 points
The Hot Water competition is based on the
completion of a task, namely running a shower
with a water pressure of fifteen gallons in ten
minutes or less. The water must be running at a
temperature of 110F/43.3C in order to qualify
for this contest. Lighting 100 points Through
luminance measurements and experience the
panelists will determine which house uses the
appropriate type and proportion of light for each
particular space, as well as using innovative and
functional energy efficiency techniques. Energy
Balance 100 points The innovative design and
utilization of solar panels to generate the bulk
of electricity for the house and the car. Judges
will award full points if the energy collected
from the solar panels is at least as much as the
energy used during the competition. Getting
Around 100 points Teams are supplied with a
standard street-legal (and commercially
available) electric vehicle. They are given the
task of balancing how much excess energy they
think they consume by running the car.
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Summer Workshops
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Solar House - Early Model and Rendering
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Digital Structural Model
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Prototypes
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Construction Summer 2007 Chassis and Floor
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Construction Summer 2007 Structure Erection
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Construction Summer 2007 Envelope
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Construction Summer 2007
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Construction Summer 2007 Building Systems
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Construction Summer 2007 Building Systems
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Construction Summer 2007 Building Systems
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Construction Summer 2007 Interiors
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Washington Competition October 2007
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Washington Competition October 2007
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Washington Competition October 2007
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Washington Competition October 2007
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Washington Competition October 2007
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Washington Competition October 2007
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Washington Competition October 2007
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Washington Competition October 2007
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Washington Competition October 2007
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Washington Competition October 2007
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Washington Competition October 2007
Energy Use
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Energy simulation model, developed in-house Used
as design tool
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Energy simulation model, developed in-house And
as the basis for model-based control
Weather forecast
Simulation-based supervisory controller
Current system state
Occupants weekly tasks and time schedule
(laundry, cooking, TV, and etc.)
Occupants personal preferences (e.g. TV watching
gtgt fine cooking gtgt hot water shower )
Suggested use options Laundry machine wash,
hang to dry Wash dishes today rather than
tomorrow Charge car fully in morning, then
halfway in afternoon
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Macro level control 5 day look ahead
Car driving schedule
Simulation
Meso level control 1 day look ahead
Weather forecast
Daily Energy consumption selection
Micro level control few hours look ahead
Hourly Energy consumer scheduling
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Rainwater collection system Improvement of heat
pump COP via increased heat transfer of
condenser Cooling of PV panels
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materials bio-based insulation from chicken
feathers
Optical Micrograph 12.6X
Optical Micrograph 80X
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Other continuing investigations In-situ
examination of radiant gain through translucent
elements In-situ examination of thermal bridges
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Solar Decathlon 07
Georgia Institute of Technology
Project Icarus - Sustaining Life with Light
Architecture Engineering Sciences Management
National Renewable Energy Laboratory U.S.
Department of Energy
USER?
it all comes back to energy
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residential construction adapting means and
methods for a solar future solar ready
homes solar house and the plug-in hybrid solar
payback take it with you
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