Try this: https://pubs.acs.org/doi/10.1021/acs.jpca.7b03112?ref=jpcafhVI-vaida-articles
It’s open access. The problem is in defining the system, with the further difficulty that you cannot apply equilibrium thermodynamics to the the planet and its spatial environment. Adrian On 12 Feb 2018, at 03:08, Klaus Lackner <klaus.lack...@asu.edu> wrote: > I had an Intel student work this out in 2001, he actually won a price for it. > The basic idea is the same, if you transmit infrared radiation to the sky > the radiator cools and you can run a heat engine against ambient conditions. > > On 2/10/18, 18:41, "geoengineering@googlegroups.com on behalf of David > Appell" <geoengineering@googlegroups.com on behalf of david.app...@gmail.com> > wrote: > > The Second Law of Thermodynamics means you can't solely operate a heat > engine from a cold bath to a warm bath -- whether the cold bath is the > troposphere, or the ocean. But, as Michael Hayes mentioned, you *can* > run a heat engine between the troposphere (or surface) and space. But > building such a technology is quite difficult, of course. His PNAS > citation is an interesting read. > > David > > > On 2/10/2018 11:39 AM, Michael Hayes wrote: >> Hi Folks, >> >> In this overall category of tech, >> Emissive Energy Harvesting is about 4-5 years old now: >> >> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.pnas.org_content_111_11_3927.short&d=DwIBaQ&c=l45AxH-kUV29SRQusp9vYR0n1GycN4_2jInuKy6zbqQ&r=hFjA8A8KwwhQx5qilpfIleTL0XYVr_fckT8DnwIEWlQ&m=dy2A13_wuvWQ7hYFJAiYBxIZ5XjK4UiiFjH6Y-9DfLE&s=_fB1-2GfT6em9MKNolZeIVjX8kXpyO3bSSxDqWUl4Io&e= >> >> The mid-infrared energy can be converted to energy that can be either used >> as electrical energy or simply beamed off the planet without affecting the >> atmosphere. >> >> I suspect work in the field of metamaterials will expand the options this >> field of tech. >> >> Best regards, >> >> Michael >> > > -- > David Appell, freelance science writer > e: david.app...@gmail.com > p: 503-975-5614 > w: > https://urldefense.proofpoint.com/v2/url?u=http-3A__www.davidappell.com&d=DwIBaQ&c=l45AxH-kUV29SRQusp9vYR0n1GycN4_2jInuKy6zbqQ&r=hFjA8A8KwwhQx5qilpfIleTL0XYVr_fckT8DnwIEWlQ&m=dy2A13_wuvWQ7hYFJAiYBxIZ5XjK4UiiFjH6Y-9DfLE&s=UTDyaXwLbJHDijXAF1WPwcioe19gs19vbfPlJJdVYJ4&e= > t: @davidappell > b: > https://urldefense.proofpoint.com/v2/url?u=http-3A__davidappell.blogspot.com&d=DwIBaQ&c=l45AxH-kUV29SRQusp9vYR0n1GycN4_2jInuKy6zbqQ&r=hFjA8A8KwwhQx5qilpfIleTL0XYVr_fckT8DnwIEWlQ&m=dy2A13_wuvWQ7hYFJAiYBxIZ5XjK4UiiFjH6Y-9DfLE&s=3eWh3iBldUHy7nfcLPM_4K8AqyjmYOWirhUV3gl5x04&e= > m: Salem, Oregon, USA > > -- > 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://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_group_geoengineering&d=DwIBaQ&c=l45AxH-kUV29SRQusp9vYR0n1GycN4_2jInuKy6zbqQ&r=hFjA8A8KwwhQx5qilpfIleTL0XYVr_fckT8DnwIEWlQ&m=dy2A13_wuvWQ7hYFJAiYBxIZ5XjK4UiiFjH6Y-9DfLE&s=OwIerIFJz7Zznxc-ONQCqvjV7FvAc6IjWgzmg3oqSqo&e=. > For more options, visit > https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_optout&d=DwIBaQ&c=l45AxH-kUV29SRQusp9vYR0n1GycN4_2jInuKy6zbqQ&r=hFjA8A8KwwhQx5qilpfIleTL0XYVr_fckT8DnwIEWlQ&m=dy2A13_wuvWQ7hYFJAiYBxIZ5XjK4UiiFjH6Y-9DfLE&s=a2PbOFSuH1ozHeVza7CCOQODUzEv1a-aPyCmFkoI_bQ&e=. > > > -- > 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. -- 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.
