Fooling around with a summarization tool. Below is what it did with David Keith's article on his air-liquid contactor (Holmes & Keith 2012). The first thing I notice is that the abstract from the article would be more useful!
I am interested in thoughts on what the summarizer could have done better on this article. http://keith.seas.harvard.edu/papers/148.Holmes.Keith.ContactorForLargeScaleCapture.e.pdf Additional results are available at http://www.pagekicker.com/index.php/catalog/document-analysis-results/700000129.html * The core simplification of this cost model is that, for a slab geometry contactor, the shell cost is roughly independent of the depth of the packing. * For example, the cost of a contactor shell with a 20 × 200 m frontal area does not change significantly as the thickness of the packing is varied from 3 to 15 m. As discussed in §2e, the CO2 mass flux into the liquid is always proportional to the concentration of CO2 in the overlying air so that it can be expressed as a liquid-phase mass transfer coefficient KL (with units of velocity) times the CO2 mass density in the air [5]. * Because the flux of CO2 into a liquid hydroxide solution under conditions relevant to AC is proportional to the mixing ratio of CO2 in the overlying gas, the mass transfer coefficient therefore has the units of velocity. * We find that the cost of air contacting can be of the order of $60 per tonne CO2 with a contactor design that results in a capture fraction of 80 per cent. * Finally, we note that the fourfold discrepancy between our estimate of contactor cost and that in the recent APS DAC report is due to fundamentally different design choices, insufficient optimization in the APS design and our choice of lower-cost contactor internals. Fred Zimmerman Ann Arbor, Michigan, USA "a fox, not a hedgehog" -- Isaiah Berlin -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
