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Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY February 9, 2010

Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

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Page 1: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

Building a Brighter Shade of Green“Home, Passive Home”

Engineering Works

Classic Style

DEPARTMENT OF MECHANICAL ENGINEERINGTEXAS A&M UNIVERSITY

February 9, 2010

Page 2: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

o These homes minimalize energy waste.o Only a fraction of the energy normally required to heat a

house is used.o Save lots of money in energy bills.o Cost up front will decrease as more homes are built and

materials become more readily available.o Be better than Europe!

Motivation

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Page 3: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

o Why not “average homes”? o Overview of Passive Houses

• How do they work?o Cooling Methodso Costso Advantageso Landscapingo Disadvantageso Specificso Conclusionso Future

Outline

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Page 4: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

o Major source of heat loss is through conventional non-insulated openings

o Start up cost is cheaper but costs more to heat and coolo Average houses in the U.S. attribute to

• 40% primary energy use• 70% electricity consumption• 40% CO2 emissions nationwide

Average Houses

4"Interiors in Anarchy." Miss Natalie. Web. 8 Feb 2011. <http://www.missnatalie.com/blog/labels/inspiration>.

Page 5: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

Passive Houses – What are they?

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o Houses that are extremely energy efficient• Up to 80% more energy efficient• Consume just 10% of the heating and cooling energy

o Zero-energy homes or even power generatorso “Tea-kettle” heating

"Matson Residence." Natural Home. Web. 8 Feb 2011. <http://www.naturalhomemagazine.com/leafy-greens/passive-house-design-pushing-the-envelope-passive-house-standard.aspx>.

Page 6: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

Passive Houses – What are they?

6"Passive House." Casa Diseno. Web. 6 Feb 2011. <http://casadiseno.files.wordpress.com/2009/11/passive-house.jpg>.

Page 7: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

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o Natural ventilation o High thermal mass o High thermal mass with night ventilation o Evaporative cooling o Solar heating

Cooling Methods

Page 8: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

Layer-by-Layer Deposition OverviewCosts

o Up to 10-15% more expensive upfronto Varies with exact building features

o The real cost advantage occurs with heat requirement o Requirement of 15 kWh/m² a yearo Eliminates standard HVAC system

8“Passive House Comparison.” Modern Building Energy Solutions. Web. Feb. 8 2011. <http://www.mbes.ie/images/Passive%20house%20comparison_478_image001.gif>

Page 9: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

Layer-by-Layer Deposition OverviewAdvantages

o Very low energy requirement o Reduce carbon footprint

o Cost of operation remains lowo High quality insulation and air tightnesso A highly controlled healthy environmento Increased energy prices have little impact o Great resale value

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Page 10: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

pH Tailored Film Growth of BPEI-MMTLandscaping

o Large trees, shrubs and vines can provide shade during summer.

o Deciduous trees drop their leaves in winter, providing for an increase in exposure to the sun, for more heat.

o Evergreens and other large trees can serve as barriers against wind, protecting from heat loss

o Using solar power for lighting and water pumps, as well as heating outdoor pools also helps.

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Page 11: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

Layer-by-Layer Deposition OverviewDisadvantages

o House orientationo Few windowso Aestheticso Few direct government subsidieso Insurance pitfallso No room for erroro Cost of meeting passive housing standard increases above

60º latitude (in Northern Europe)

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Page 12: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

pH Tailored Film Growth of BPEI-MMTTechnically Speaking…

o Windows, insulation, building methods…o Exceptionally large R-value construction

o What happens when someone opens the door?o “Airtight” - $200,000 fan

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Page 13: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

pH Tailored Film Growth of BPEI-MMTConclusions

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o European Union wants to cut annual power consumption by 20%

Page 14: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

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Where to go from here?

o Lasting impacts on the environmento Technology/building materials as it becomes more available?o Perhaps apply this technology to other

buildings/transportation? “Green buildings”, etc, etc.o Tianjin Eco-City - 2020

"Tianjin Eco-City." sstec. Web. 6 Feb 2011. <http://www.tianjineco-city.com/en/news_center/press_release/1118.aspx>

Page 15: Building in a Brighter Shade of Green...Building a Brighter Shade of Green “Home, Passive Home” Engineering Works Classic Style DEPARTMENT OF MECHANICAL ENGINEERING TEXAS A&M UNIVERSITY

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References

o Gene, . "Home, passive home." Engineering Works (2010): n. pag. Web. 6 Feb 2011. <http://engineeringworks.tamu.edu/2010/home-passive-home>.

o Zeller, Jr., Tom. "Beyond Fossil Fuels: Can We Build in a Brighter Shade of Green." New York Times 25 September 2010, Web. <http://www.nytimes.com/2010/09/26/business/energy-environment/26smart.html?_r=1>

o "Tianjin Eco-City." sstec. Web. 6 Feb 2011. <http://www.tianjineco-city.com/en/news_center/press_release/1118.aspx>o "Passive House." Casa Diseno. Web. 6 Feb 2011. <http://casadiseno.files.wordpress.com/2009/11/passive-house.jpg>.o “Passive House Comparison.” Modern Building Energy Solutions. Web. Feb. 8 2011.

<http://www.mbes.ie/images/Passive%20house%20comparison_478_image001.gif>. o "Interiors in Anarchy." Miss Natalie. Web. 8 Feb 2011. <http://www.missnatalie.com/blog/labels/inspiration>.o "Matson Residence." Natural Home. Web. 8 Feb 2011. http://www.naturalhomemagazine.com/leafy-greens/passive-house-

design-pushing-the-envelope-passive-house-standard.aspx.