Difference between revisions of "Solarwall"

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'''SolarWall''' is the brand name of a [[Solar thermal collector|transpired collector]] designed and manufactured by the [[Toronto, Canada]] based company [[Conserval Engineering]]. 
==History and Design==
The SolarWall design was developed in 1989 by John Hollick of Conserval Engineering in partnership with the U.S. [[Department of Energy]]’s [[National Renewable Energy Laboratory]] (NREL).<ref name="DOE">[https://www1.eere.energy.gov/femp/pdfs/FTA_trans_coll.pdf Transpired Collectors (Solar Preheaters for Outdoor Ventilation Air)]. Federal Energy Management Program, U.S. Department of Energy. Federal Technology Alert #DOE/GO-10098-528. April 1998.</ref><ref name="MEO">Siegele, Lindsey. [https://www.motherearthnews.com/green-homes/natural-building/solarwall-solar-air-heating-zw0z10zsieSolarWall Solar Air Heating Technology: Transpired air collectors, marketed as SolarWall, bring solar air heating to businesses, warehouses and even residential buildings]. [[Mother Earth News]]. 8 December 2010.</ref><ref name="Dodge">Dodge, David. [https://www.huffingtonpost.ca/david-dodge/solar-air-heater_b_6249742.html How We Made Our Own Solar Air Heater for Under $100]. [[Huffington Post]]. 1 December 2014.</ref>  The system consists of perforated metal panels mounted on a building's sun-facing exterior wall, the panels absorb heat from the sun and in turn heat the air space between the panel and the building's wall. The heated air is then pulled into the building's ventilation or [[HVAC]] system via a fan, saving building owners on their heating costs and reducing the amount of fossil fuels used.<ref name=Dodge/>  According to [[Mother Earth News]], for every {{conv|5|sqm}} of SolarWall panels installed, about 1 ton of carbon dioxide emissions is displaced each year.<ref name=MEO/>  An unglazed design is used for heating or preheating large volumes of fresh air, and a partially glazed 2-stage heater is available for achieving higher temperatures when heating buildings in colder climates.  The SolarWall technology can also be installed as a hybrid solar system that generates both heat and electricity from the same surface area. By combining [[photovoltaics]] with the air heating technology, the heat produced by the [[solar panel]]s is removed and drawn into the collector, helping to cool the solar panels and preheat the building’s ventilation system at the same time.
Compared to traditional roof mounted solar thermal panels designed to heat domestic hot water, a vertical orientation eliminates any snow buildup and was found to increase winter solar gain, being angled more towards the lower winter [[Solar azimuth angle|solar angle]].  Reflective snow on the ground was found to increase solar energy as much as 50%.{{fact|date=November 2018}}
Three of Conserval's early SolarWall installations have been closely monitored to determine real energy savings.  In 1990, [[Ford Motor Company]] installed a system on their [[Oakville, Ontario]] manufacturing plant, saving approximately 17% on their heating costs at that plant alone.<ref name=DOE/>  The company eventually installed six more SolarWall systems on other facilities, and as of 2014 have reportedly saved more than [[USD|$]]10 million over all their installations.<ref name=Dodge/>  In 1991, [[General Motors]] had a system installed at their [[Oshawa|Oshawa, Ontario]] plant and, as of 1998, reported a savings of approximately $10,200 per year.  Another collector installed at NREL in [[Golden, Colorado]] in 1991 is saving about 14,310 kWh of electricity annually, a reported 25.7% decrease.<ref name=DOE/> According to [[Solar Energy Industries Association]] over {{conv|5000000|sqft}} of these panels were in operation as of 2015.{{fact|date=November 2018}}
SolarWall and it's parent company Conserval have received a number of awards:<ref name=DOE/>
* 1994 - "R&D 100 Award" from ''[[R&D Magazine]]''
* 1994 - "Best New Building Product of the Year Award" from [[Toronto Construction Association]]
* 1994 - "Best of What's New" Award from ''[[Popular Science]]''
* 1997 - Federal Energy and Water Management Award from the U.S. [[Department of Energy]]
==See also==
* [[Solar updraft tower]]
* [[Trombe wall]]
[[Category:Solar thermal energy]]
[[Category:Solar architecture]]
[[Category:Low-energy building]]

Latest revision as of 07:17, 8 December 2018

Hurray! It looks like this article has survived the deletionist battle. Check Solarwall on the English Wikipedia.