A usual large steel mill is capable of burning as much as 1.5 million metric tons of coal in a year in its furnaces. The industrial process however has not been able to run on sources of energy which are renewable due to the very hot temperatures that are required. This makes it hard to eliminate almost a quarter of the emissions around the globe. Though, a new technology that concentrates the solar thermal energy to 1,000 degree Celsius may for the very first time be able to transform a few of the most polluting industries like the cement, steel and petrochemical production.
This technology comes from Heliogen which is a start-up base out of California and uses many mirrors for the purpose of reflecting sunlight. This is not a new concept however its approach has been able to nearly double the heat which was being previously produced by the solar thermal technology. Their founder who is also their CEO has said that it is like a big magnifying glass which is being controlled by a computer.
Earlier, the mirrors were not able to give direction to light with as much precision however the vision of the computer and processing of images have been able to improve this process. They have said that they have a series of cameras, high-resolution ones which look at this field of mirrors and make these mirrors point precisely by real time looking at the mirrors’ position and this process has not been done before.
The hottest temperature which was reachable earlier was 575 degrees whereas the temperature which was required for such a work was a minimum of 950 degrees.