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- Active_solar abstract "Solar hot water systems use pumps or fans to circulate fluid (often a mixture of water and glycol to prevent freezing during winter periods) or air, through solar collectors, and are therefore classified under active solar technology.Some of the basic benefits of active systems is that controls (usually electrical) can be used to maximize their effectiveness. For example, a passive solar thermal array which does not rely on pumps and sensors will only start circulating when a certain amount of internal energy has built up in the system. Using sensors and pumps, a relatively small amount of energy (i.e. that used to power a pump and controller) can harvest a far larger amount of available thermal energy by switching on as soon as a useful temperature differential becomes present. Controls also allow a greater variety of choices for utilizing the energy that becomes available. For example, a solar thermal array could heat a swimming pool on a relatively cool morning where heating a domestic hot water cylinder was impractical due to the different stored water temperatures. Later in the day as the temperature rises the controls could be used to switch the solar heated water over to the cylinder instead.The downside to Active Solar systems is that the external power sources can fail (probably rendering them useless), and the controls need maintenance.Most solar collectors are fixed in their array position mounting, but can have a higher performance if they track the path of the sun through the sky (however it is unusual for thermal collectors to be mounted in this way). Solar trackers, used to orient solar arrays may be driven by either passive or active technology, and can have a significant gain in energy yield over the course of a year when compared to a fixed array. Again passive solar tracking would rely on the inherent thermo-dynamic properties of the materials used in the system rather than an external power source to generate its tracking movement. Active Solar Tracking would utilise sensors and motors track the path of the sun across the sky. This action can be caused by geographical and time data being programmed into the controls. However, some systems actually track the brightest point in the sky using light sensors, and manufacturers claim this can add a significant extra yield over and above geographical tracking.".
- Active_solar thumbnail SolarTrackerRoofView300W200H.jpg?width=300.
- Active_solar wikiPageExternalLink active-solar-tracking-systems-explained.
- Active_solar wikiPageID "67039".
- Active_solar wikiPageLength "3382".
- Active_solar wikiPageOutDegree "21".
- Active_solar wikiPageRevisionID "702872831".
- Active_solar wikiPageWikiLink Architectural_engineering.
- Active_solar wikiPageWikiLink Autonomous_building.
- Active_solar wikiPageWikiLink Carbon.
- Active_solar wikiPageWikiLink Category:Construction.
- Active_solar wikiPageWikiLink Category:Solar_architecture.
- Active_solar wikiPageWikiLink Climate_change.
- Active_solar wikiPageWikiLink Mechanical_fan.
- Active_solar wikiPageWikiLink Passive_solar_building_design.
- Active_solar wikiPageWikiLink Photovoltaics.
- Active_solar wikiPageWikiLink Pump.
- Active_solar wikiPageWikiLink Renewable_energy.
- Active_solar wikiPageWikiLink Renewable_heat.
- Active_solar wikiPageWikiLink Solar_air_conditioning.
- Active_solar wikiPageWikiLink Solar_chemical.
- Active_solar wikiPageWikiLink Solar_flower_tower.
- Active_solar wikiPageWikiLink Solar_power.
- Active_solar wikiPageWikiLink Solar_tracker.
- Active_solar wikiPageWikiLink Solar_water_heating.
- Active_solar wikiPageWikiLink Zero-energy_building.
- Active_solar wikiPageWikiLink File:SolarTrackerRoofView300W200H.jpg.
- Active_solar wikiPageWikiLinkText "Active solar".
- Active_solar wikiPageWikiLinkText "active solar".
- Active_solar wikiPageWikiLinkText "active".
- Active_solar wikiPageWikiLinkText "solar thermal heating".
- Active_solar wikiPageUsesTemplate Template:Portal.
- Active_solar wikiPageUsesTemplate Template:Refimprove.
- Active_solar subject Category:Construction.
- Active_solar subject Category:Solar_architecture.
- Active_solar comment "Solar hot water systems use pumps or fans to circulate fluid (often a mixture of water and glycol to prevent freezing during winter periods) or air, through solar collectors, and are therefore classified under active solar technology.Some of the basic benefits of active systems is that controls (usually electrical) can be used to maximize their effectiveness.".
- Active_solar label "Active solar".
- Active_solar sameAs Q1815047.
- Active_solar sameAs Tecnología_solar_activa.
- Active_solar sameAs فعال_خورشیدی.
- Active_solar sameAs Aktiv_solenergi.
- Active_solar sameAs m.0hnrb.
- Active_solar sameAs แอคตีฟโซลาร์.
- Active_solar sameAs Q1815047.
- Active_solar wasDerivedFrom Active_solar?oldid=702872831.
- Active_solar depiction SolarTrackerRoofView300W200H.jpg.
- Active_solar isPrimaryTopicOf Active_solar.