1 / 5

Terse Critique of article “Pee Power”

Terse Critique of article “Pee Power”. Presentation by Bert Stunkard NPRE 498 ES October 13, 2010. Source article. Hazel Muir, “Pee Power”, in New Scientist , Vol. 207(2774), August 21, 2010, p37-39. Hazel Muir is a free-lance science writer based in the United Kingdom.

rio
Télécharger la présentation

Terse Critique of article “Pee Power”

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Terse Critique of article “Pee Power” Presentation by Bert Stunkard NPRE 498 ES October 13, 2010

  2. Source article • Hazel Muir, “Pee Power”, in New Scientist, Vol. 207(2774), August 21, 2010, p37-39. • Hazel Muir is a free-lance science writer based in the United Kingdom. • Has written several feature articles for New Scientist

  3. Urea instead of water for H2 • Hydrogen atoms less tightly bound. 0.37 [v] to free H2, versus 1.23 [v] for H2O • Nickel electrodes instead of precious metals • Solution or solid. Less troublesome storage and transport than H2. • Fuel cell can produce electricity directly from Urea. • Some estimate $1/kg H2 from urea

  4. Adblue • Fueling stations in Europe and Asia often sell 32.5% urea solution for (mandated) nitrogen oxide scrubbing • Launching point for urea fuel cells

  5. Problems with “Pee” • Urea only 2% of human urine • Further diluted in sewage systems • Urea becomes ammonia, due to both chemical and bacteria action. • Sewage, animal waste useful, under-utilized fertilizer. (Consider biochemical fuel-cells) • Urea current produces CO2 and manufactured from natural gas. • Niche player

More Related