Google Green
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Continual improvements to Google data centers: ISO and OHSAS certifications
googlegreen
19,864 views
Google is the first major Internet services company to gain external certification of our high environmental and workplace safety standards at all of our US data centers. L...
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Green Flight Challenge 2011, sponsored by Google
googlegreen
8,041 views
Google sponsored the Green Flight Challenge 2011. The competition was organized and conducted by the CAFE Foundation, and NASA funded the $1.65 million prize purse, the lar...
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2011 Google Green Search Trends
googlegreen
459,380 views
Watch this video for highlights of some of the top green searches of 2011. Explore the trends for yourself and create your very own green scrapbook at: http://www.google.co...
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Overview of heliostat research
googlegreen
5,619 views
Google's heliostat team re-thought the entire heliostat architecture in order to reduce the cost of concentrating solar thermal power. This led to new approaches and differ...
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Time lapse of closed loop heliostat control demonstration
googlegreen
2,318 views
A prototype heliostat developed by Google reflects sunlight at a target, using a closed loop control algorithm that uses target mounted cameras to sense the location of the...
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Heliostat cable drive actuators
googlegreen
1,936 views
The prototype Google heliostat actuators operate similarly to a low power electric winch using lightweight but strong wire cables in tension to position a heliostat reflector.
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Hail testing of heliostat reflectors
googlegreen
731 views
Google heliostat reflectors were subjected to a test simulating hail impact. This test fired 25mm diameter hail at the reflector, which survived the conditions set by the ...
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Flow visualization testing of a heliostat field behind a porous fence
googlegreen
837 views
Description: A field of heliostats is sheltered by an upstream fence that is 50% open (e.g. a snow fence). Turbulence in the flow indicates flow energy extraction and mix...
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Closed loop control of multiple heliostats using photometry
googlegreen
1,976 views
Using a target based multi-camera photometry system, closed loop control of heliostats can be used to actively position a light spot to the center of a target, maintain th...
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Flow Visualization of heliostat vortex shedding
googlegreen
486 views
Vortex shedding is observed through flow visualization on a single heliostat in uniform (laminar) flow.
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