A decade or more ago, on the Low Tech website ( which I still find ironic ), I pointed-out that a solar-concentrator is THE ideal method for roasting the ingredients of cement, instead of using conventional/fossil energy.
Use solar-concentrator for the roasting, you can reach any temperature you want, I think the way to make solar-concentrators not kill birds ( flash-incineration ) is with either sound they don’t like, or with making a dome over the entire site, & just putting a sparse “spiderweb” of fiberglass strands over it, so as to keep them away.
So long as the concentrator is still able to work, it’d be good-enough, & it would detach cement-manufacturing from the conventional energy-sources, for the heat.
( moving the materials would still cost electricity, but that’s minor, compared with the roasting )
A decade or more ago, on the Low Tech website ( which I still find ironic ), I pointed-out that a solar-concentrator is THE ideal method for roasting the ingredients of cement, instead of using conventional/fossil energy.
Use solar-concentrator for the roasting, you can reach any temperature you want, I think the way to make solar-concentrators not kill birds ( flash-incineration ) is with either sound they don’t like, or with making a dome over the entire site, & just putting a sparse “spiderweb” of fiberglass strands over it, so as to keep them away.
So long as the concentrator is still able to work, it’d be good-enough, & it would detach cement-manufacturing from the conventional energy-sources, for the heat.
( moving the materials would still cost electricity, but that’s minor, compared with the roasting )
That sounds awesome! Do you have a link to the article you wrote?