detailed program march 2011 to september 2011
DESCRIPTION
Detailed Program March 2011 to September 2011 goal – allow the winery to be self-sustainable in water & energy. Best Value Competition June 2011 to January 2012. Advertisement & Prequalification 17 Teams submit Prequalification Packets, June 2011 - PowerPoint PPT PresentationTRANSCRIPT
Detailed ProgramMarch 2011 to September 2011
goal – allow the winery to be self-sustainable in water & energy
Best Value CompetitionJune 2011 to January 2012
Advertisement & Prequalification•17 Teams submit Prequalification Packets, June 2011•Prequalification consists of required elements (pass/fail) and scoring (48 points possible) based on experience of team and individuals•5 Teams interviewed, August 2011
Design Build Competition•3 Teams selected to prepare designs and bid price•Two one-on-one sessions with each team, Nov & Dec 2011
Bids Received• Bid date, January 2012• Detailed evaluation with points awarded• Best value price determined
Project AwardMarch 2012
Passive Designclerestory windows
and shading devices
Optimize Designreduce loadsinsulate well
daylightreduce infiltration
address thermal breakspassive cooling
WALL
Exterior Wall4 inch insulated wall panel over Snap-R 1 inch EPS
spacer over 10 inch girt (11in batt insulation) = R-55.7
ROOF
Roof6 inch insulated roof panel over 12 inch metal girt
with batt insulation = R-70
specified double wall insulated dampers on all envelope penetrations
provided thermal and load bearing insulation pads at structural steel connections
Thermal Bridging
Challenges:• maintain building interior temperature
between 50 and 80 degrees F WITHOUT the use of any active mechanical systems
• net zero site energy
Software Selection:• IES vs Epro
Thermal / Energy Modeling
Where to Look?
Net Zero Energy Building Tip: Understand building physics
InfiltrationOpaque Envelope
Windows
Infiltrationconstruct an
airtight building
followed ASTM E1827-11 single point method for air tightness
looking for rate less than 0.1 cfm/sf
door blower test, identify leaks with smoke guns
actual leakage 0.08 cfm/sf
once load reduced, use night flush through one fan with thermal storage in internal concrete walls and slab
Net Zero Energy Building Tip:
Understand micro climate
Mechanical Solution
Temperature Results
Temperature Results
Energy Results
• If 6 months results are extrapolated to one year, Total Building Energy consumption = 3,588 kWh
That is 1.44 kBtu/sq.ft-year
• Modeled was 1.66kBtu/sq.ft-year
Energy Results
Net Zero Energy Building Tip: Model accurately
