Richard Lab:Review of ammonia emission models: Difference between revisions
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| Jiqin Ni. 1999. Mechanistic Models of Ammonia Release from Liquid Manure: a Review. J. Agric. Engng Res.(72), 1-17. [http://www.idealibrary.com | | Jiqin Ni. 1999. Mechanistic Models of Ammonia Release from Liquid Manure: a Review. J. Agric. Engng Res.(72), 1-17. [http://www.idealibrary.com Available online] | ||
|| The core model uopn whihc 30 reviewed NH3 emisison models are based, is a convective transfer model: flux in mass/(time.area)= mass transfer coefficient in m/s (concentration gradient). The manure concentration in this model can be measured or derived using Henry's constant, dissociation ocnstant (if ammonium level in material is known), and other factors. [..] | |||
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Latest revision as of 14:09, 14 August 2007
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Haslam et al, 1924 | Emperical derivation of a mass transfer coefficient for amomnia in air. The resulting cofficients have been used since 1924 in theoratical models for predicting ammonia emissions. | Hala |
Jiqin Ni. 1999. Mechanistic Models of Ammonia Release from Liquid Manure: a Review. J. Agric. Engng Res.(72), 1-17. Available online | The core model uopn whihc 30 reviewed NH3 emisison models are based, is a convective transfer model: flux in mass/(time.area)= mass transfer coefficient in m/s (concentration gradient). The manure concentration in this model can be measured or derived using Henry's constant, dissociation ocnstant (if ammonium level in material is known), and other factors. [..] | . |
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