ymca @ virginia tech 215 maywood street blacksburg va 24060
DESCRIPTION
YMCA @ Virginia Tech 215 Maywood Street Blacksburg VA 24060. L. David Roper http://arts.bev.net/RoperLDavid http:// www.roperld.com/science/YMCASolarGreenhouse.htm http://www.roperld.com/science/YMCASolarGreenhouse.ppt. YMCA @ Virginia Tech Community Gardens. Orchard. Pond. House. - PowerPoint PPT PresentationTRANSCRIPT
YMCA @ Virginia TechYMCA @ Virginia Tech
215 Maywood Street215 Maywood StreetBlacksburg VA 24060Blacksburg VA 24060
L. David RoperL. David Roper
http://arts.bev.net/RoperLDavidhttp://www.roperld.com/science/YMCASolarGreenhouse.htm
http://www.roperld.com/science/YMCASolarGreenhouse.ppt
YMCA @ Virginia TechYMCA @ Virginia TechCommunity GardensCommunity Gardens
Maywood Street off North Main Street
RSGH
House
Pond
Tank
Bee Hives
Orchard
CisternTank
YMCA @ Virginia TechYMCA @ Virginia TechCommunity GardensCommunity Gardens
RSGH
April 2010
July 2010
YMCA @ Virginia TechYMCA @ Virginia TechSolar GreenhouseSolar Greenhouse
Architecture by Colley Architects
Conceived in late 2006.Colley Architect’s drawings approved in July 2008.
YMCA @ Virginia TechYMCA @ Virginia TechSolar GreenhouseSolar Greenhouse
Heat SinkHeat Sink
•Air flow ~4ft/sec through 4” slotted drain pipes. (395 cfm)•Move 5 times the SGH volume per hour. (500 cfm)
Traditional Solar Greenhouse Heat SinkTraditional Solar Greenhouse Heat Sink
Univ. of Missouri
Traditional Solar Greenhouse Heat SinkTraditional Solar Greenhouse Heat SinkOmega
Lane Farm near Rural
Retreat VA uses
rectangular honey cans.
Blue promotes vegetative
growth. Red
promotes flowering.
Planting BedsPlanting Beds
ExcavationExcavationLate October 2008Jeff Ligon Excavation
Excavation & FootersExcavation & Footers
Insulated Concrete Forms (ICF)Insulated Concrete Forms (ICF)
1.5” insulating foam on each side.8” of concrete between.
November 2009Doug & Tim Hoback
Pouring Concrete into ICFPouring Concrete into ICF
Cold day in middle of November 2008Conrock Concrete & Jeff Ligon
Insulation Inside & Outside
Late November 2009Snyder Waterproofing
Heat Sink Insulation
6-mil polyethylene on bottom; 2” insulating board; 6-mil polyethylene on top.
Pat Bixler,Comm. Chair
Justin Boyle,Contractor
Early December 2008
Heat Sink Structure
Dave Roper,Worker
Tim Colley,Architect
Heat Sink
Installing Rafters
North Roof
Early January 2009Hammer Down ConstructionRichard Reid
West End
Late January 2009DiStefano Siding
East End
Installing PolycarbonateInstalling Polycarbonate
Polycarbonate OnPolycarbonate On
20’ long x10-mm thick double-walled polycarbonate with ribs separated by 1 cm.
Middle February 2009
Closed-Cell Foam Insulation
Wall panels outside and inside are Hardie Board, a cement-fiber composite.
Late March 2009Evergreen Insulation
Inside Hardie BoardInside Hardie BoardEarly April 2009DiStefano Siding
PaintingPaintingMiddle April 2009
Virginia Tech students
Abi ConveryVTYMCA
Gail BillingsleyVTYMCA
Building Soil & WalkwayBuilding Soil & Walkway
April 2009Debbie WileyDave Roper
ElectricalElectrical
May 2009Chris Roberts of Baseline Solar
2090-Gallons Cistern
Late April 2009David King
David Nickerson,Model Builder and Worker
Trex & Choice-Dek Composite
Boards
Heat-Sink Inlet & Shelves
Heat-Sink Fan
Vent Windows & OpenersVent Windows & Openers
Water System
David King
Control Panel
Heat-Sink Fan Thermostats
Heat-Sink Fan Variable-Speed
Switch
Window-Openers Thermostats & Switch & 120V AC->24V DC
Converter
Window FanThermostat
Chris RobertsBaseline Solar
ThermostatsThermostats Heat-Sink CoolingHeat-Sink Cooling: fan on at 70 : fan on at 70
degrees, off at 61 degrees.degrees, off at 61 degrees. Heat-Sink HeatingHeat-Sink Heating: fan on at 50 : fan on at 50
degrees, off at 59 degrees.degrees, off at 59 degrees. Window OpenerWindow Opener: Opens at 70 : Opens at 70
degrees, closes at 50 degrees.degrees, closes at 50 degrees. Window FanWindow Fan: On at 85 degrees, off : On at 85 degrees, off
at 65 degrees.at 65 degrees.
Roper Solar Greenhouse at night.3 lights on left are LEDs.3 lights on right are CFLs.
Payne ShelterPayne Shelter
Changes I Would MakeChanges I Would Make Do not insulate the inside of the concrete walls; Do not insulate the inside of the concrete walls;
instead double the insulation outside the instead double the insulation outside the concrete walls. Gives more thermal mass.concrete walls. Gives more thermal mass.
Install much larger vent windows for more Install much larger vent windows for more cooling.cooling.
Connect the ends of the 4” slotted drain pipes Connect the ends of the 4” slotted drain pipes closer to each other at the 24” end pipes.closer to each other at the 24” end pipes.
Better brace the Hardie-board that separates the Better brace the Hardie-board that separates the rocks under the walkway from the planting soil.rocks under the walkway from the planting soil.
Not put the soil in until all inside structure is Not put the soil in until all inside structure is built.built.
Winter of 2009-2010Winter of 2009-2010 Middle school students at Blacksburg New Middle school students at Blacksburg New
School planted in west half. Tried some plants School planted in west half. Tried some plants that are known to not grow well in solar that are known to not grow well in solar greenhouses, such as tomatoes.greenhouses, such as tomatoes.
John Ogburn organized 8 gardeners to plant in John Ogburn organized 8 gardeners to plant in east half on 4’x7’ plots. I was one of them.east half on 4’x7’ plots. I was one of them.
Greens did very well with bumper crops.Greens did very well with bumper crops. Aphids appeared. Eventually controlled with Aphids appeared. Eventually controlled with
ladybugs.ladybugs.
North-East Quadrant in NovemberNorth-East Quadrant in November
South-West Quadrant in NovemberSouth-West Quadrant in November
Roper Plot in FebruaryRoper Plot in February
Temperatures in February 2010Temperatures in February 2010
Back Yard Solar GreenhouseBack Yard Solar Greenhouse
What to Grow in a Solar GreenhouseWhat to Grow in a Solar Greenhouse Mostly greensMostly greens
LettucesLettuces ChardChard CollardCollard KaleKale SpinachSpinach Nasturtium/TropaeolumNasturtium/Tropaeolum ArugulaArugula EndiveEndive MustardMustard Beet greensBeet greens
RadishesRadishes Green OnionsGreen Onions BroccoliBroccoli Beet rootBeet root Cauliflower (takes Cauliflower (takes
too much space?)too much space?)
Thanks!Thanks!
Gail Billingsly, YMCAGail Billingsly, YMCAArlean Hale Lambert, landArlean Hale Lambert, land
Pat Bixler, producerPat Bixler, producerTim Colley, architectTim Colley, architect
Travis Rookstool, architectTravis Rookstool, architectJordan Truesdell, engineerJordan Truesdell, engineerDavid Nickerson, modelDavid Nickerson, model
Justin Boyle, Green Valley BuildersJustin Boyle, Green Valley BuildersJason Boyle, Green Valley BuildersJason Boyle, Green Valley Builders
Jeff Ligon, excavationJeff Ligon, excavation
Thanks!Thanks!
Doug & Tim Hoback, ICFDoug & Tim Hoback, ICFNaraine Persaud, soilNaraine Persaud, soil
Richard Reid, carpentryRichard Reid, carpentryTom Bowden, carpentryTom Bowden, carpentryJohn Sullivan, carpentryJohn Sullivan, carpentry
Alex Lawrence, excavationAlex Lawrence, excavationChris Roberts, electricalChris Roberts, electrical
Abigail Convery, YMCAAbigail Convery, YMCAJohn Ogburn, grower organizerJohn Ogburn, grower organizer
Deborah Wiley, soilDeborah Wiley, soil
Thanks!Thanks!
Holly Scoggins, soilHolly Scoggins, soil
David King, cistern and water systemDavid King, cistern and water system
Master Gardeners, landscapingMaster Gardeners, landscaping
UXB International, parking lotUXB International, parking lot
Want More Information about the Want More Information about the SGH Project for the NRV?SGH Project for the NRV?
Web page:Web page:http://www.roperld.com/science/YMCASolarGreenhouse.htm
This slide show is available on the Internet:This slide show is available on the Internet:http://www.roperld.com/science/YMCASolarGreenhouse.ppt