Poster's note : important paper so cross posting. NB could potentially be combined with liquid air energy storage for reduced energy requirements
https://link.springer.com/article/10.1007/s10584-018-2208-0 Climatic Change <https://link.springer.com/journal/10584> pp 1–11| Cite as <https://link.springer.com/article/10.1007/s10584-018-2208-0#citeas> Thermal removal of carbon dioxide from the atmosphere: energy requirements and scaling issues - Authors <https://link.springer.com/article/10.1007/s10584-018-2208-0#authors> - Authors and affiliations <https://link.springer.com/article/10.1007/s10584-018-2208-0#authorsandaffiliations> - Ted von HippelEmail author <ted.vonhip...@erau.edu> - - - <ted.vonhip...@erau.edu> <http://orcid.org/0000-0002-5775-2866> 1. 1. 2. 2. Article First Online: 01 May 2018 <https://link.springer.com/article/10.1007/s10584-018-2208-0#article-dates-history> - 2Shares <http://www.altmetric.com/details.php?citation_id=40465708&domain=link.springer.com> Abstract I conduct a system-level study of direct air capture of CO2 using techniques from thermal physics. This system relies on a combination of an efficient heat exchanger, radiative cooling, and refrigeration, all at industrial scale and operated in environments at low ambient temperatures. While technological developments will be required for such a system to operate efficiently, those developments rest on a long history of refrigeration expertise and technology, and they can be developed and tested at modest scale. I estimate that the energy required to remove CO2 via this approach is comparable to direct air capture by other techniques. The most challenging aspect of building a system that could remove 1 billion tonnes of CO2 from the atmosphere per year is the power demand of 112 to 420 GW during the wintertime operational period. This is a preview of subscription conte -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to geoengineering+unsubscr...@googlegroups.com. To post to this group, send email to geoengineering@googlegroups.com. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
