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Problems with smog are now not only Chinese issue. The number of cities dealing with air pollution is increasing and you have probably heard about current heavy pollution in Paris, a city of love. But it isn’t very romantic to spend a day with a mask on your face, is it?
A team of ambitious students at the University of California came with an amazing idea and developed a great weapon against air pollution. They created roof tiles coated with titanium dioxide which can break down smog-forming particles in the atmosphere and eliminate a big percentage of nitrogen oxide gas emitted by cars and power plants. Titanium dioxide is inexpensive chemical found in a huge number of everyday products. The interesting fact is that it is so inexpensive that the whole average-sized residential roof can be covered with it for $5.0. Smog is cause by nitrogen oxide gases that react to sunlight and students discovered that using these special roof tiles can remove 88 to 97 of this oxide pollution and break down into less harmful compounds.
1. vehicles release smog-producing toxins into the air
2. smog-eating tile covered with titanium oxide responding to UV light breaking down nitrogen oxides produced by vehicles
3. the process forms reside on tile until rain washes it away
Resembling something out of a movie, the Ivanpah Solar Thermal is the world’s largest solar power plant located in Ivanpah Dry Lake,
California’s Mojave Desert. Occupying approximately 3,500 acres (14.2km2) and grounded on BrightSource’s solar tower technology, the thermal complex produces gross total of 392 MW of solar power.
Over 300,000 garage-door-size mirrors are used to attract the power of the sun in two dimensions and reflect the sunlight to boilers that sit atop three 459 foot tall power towers. A center of earth location in relation to the sun is used so that each mirror in its solar generating system is precisely aligned.
What is so special about Ivanpah Solar Thermal? Economic, social and environmental benefits are many. With the thermal’s construction 2,636 new local jobs were created, generating about $350 mi in local and state taxes. Clean, sustainable and reliable solar electricity serves 140,000 homes on average in California, while 400,000 metric tons of carbon dioxide emission per year is reduced, which equals to removing 72,000 vehicles off the road.
Not only that, the construction of this iconic project was a breakthrough as it kept the majority of the natural landscape untouched unlike other mega constructions. When BrightSource’s 173,000 heliostat pylons were installed, grading and concrete foundations were limited to the maximum, allowing the vegetation to co-exist within the solar field below the mirrors. The project also accounted with an innovative and customized design; excavators operated in the 130-foot wide no-drive zones, traveling in the same tracks through the solar field and installing between 75 and 125 pylons per day, per machine.
The innovative technology uses the same principal of electricity production i.e. high-temperature steam which turns a conventional turbine, where electricity is produced and transmitted to homes and businesses. The big difference is that at Ivanpah, the concentrated sunlight (and not fossil fuel) strikes the boiler’s pipes and heats the water to create superheated steam. Besides, the technology uses 95 percent less water than competing wet cooled solar thermal plants by employing a dry-cooling process, which uses air instead of water to condense steam. All water used by the steam production cycle is recycled back into the system, or consumed to clean the mirrors, highlights BrightSource.
The Ivanpah Solar Thermal System is “critical to establishing America’s leadership in large-scale, clean-energy technology that will keep our economy globally competitive over the next several decades,” says Tom Doyle, president at NRG Solar. This is the future and the Ivanpah has, for sure, started changing the way we produce and consume energy.
Shanghai Metal Corporation is proud to follow on news that represent massive step forward for renewable energy as previously reported here. SMC manufactures a wide range of Solar panel aluminum extrusion widely used in solar panels and tin coated/plated copper strip used in solar panel batteries. To find out more, please visit our Website or send your inquiry here. Our English speaking personnel will be more than pleased to help you. Follow us on LinkedIn, Twitter, Facebook, Instagram and don’t forget to subscribe to our YouTube channel. Or you could try our new mobile app by scanning our QR code.