A farm-level model of VOC emission from silage

S. D. Hafner, Felipe Montes, Clarence Alan Rotz, F. M. Mitloehner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recent measurements suggest that dairy farms can be a significant emission source of volatile organic compounds (VOCs). However, accurate estimates of farm-level emissions currently do not exist. We developed a preliminary process-based model to estimate VOC emissions from silage on farms and to assess the effectiveness of management changes on reducing emissions. Using ethanol as a representative VOC, we evaluated the effects of environmental conditions (temperature and air velocity) and management practices on emission. Model predictions suggest that VOC emission is sensitive to environmental conditions, with the greatest emission occurring under hot and windy conditions. Predictions indicate that changes in silage management can substantially reduce VOC emission, but that changes in individual sources will not lead to significant reductions on their own. Combined changes in storage and feeding practices can lead to substantial emission reductions, according to model predictions. Preliminary predictions of ethanol emission for typical conditions are substantially greater than previous estimates of VOC emission from silage. Additional measurements are needed, however, to complete the model for all important VOCs and to fully verify farm-level predictions. When complete, this model will provide a useful tool for evaluating strategies for reducing VOC emissions from silage.

Original languageEnglish (US)
Title of host publicationASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010
Pages446-453
Number of pages8
StatePublished - Dec 1 2010
EventInternational Symposium on Air Quality and Waste Management for Agriculture 2010 - Dallas, TX, United States
Duration: Sep 13 2010Sep 16 2010

Publication series

NameASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010

Other

OtherInternational Symposium on Air Quality and Waste Management for Agriculture 2010
CountryUnited States
CityDallas, TX
Period9/13/109/16/10

Fingerprint

Volatile Organic Compounds
Silage
silage
volatile organic compounds
Volatile organic compounds
Farms
volatile organic compound
farm
farms
prediction
Ethanol
ethanol
environmental conditions
Dairies
Practice Management
environmental factors
Air
management practice
dairy farming
Temperature

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences (miscellaneous)
  • Environmental Engineering
  • Pollution
  • Waste Management and Disposal

Cite this

Hafner, S. D., Montes, F., Rotz, C. A., & Mitloehner, F. M. (2010). A farm-level model of VOC emission from silage. In ASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010 (pp. 446-453). (ASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010).
Hafner, S. D. ; Montes, Felipe ; Rotz, Clarence Alan ; Mitloehner, F. M. / A farm-level model of VOC emission from silage. ASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010. 2010. pp. 446-453 (ASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010).
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Hafner, SD, Montes, F, Rotz, CA & Mitloehner, FM 2010, A farm-level model of VOC emission from silage. in ASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010. ASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010, pp. 446-453, International Symposium on Air Quality and Waste Management for Agriculture 2010, Dallas, TX, United States, 9/13/10.

A farm-level model of VOC emission from silage. / Hafner, S. D.; Montes, Felipe; Rotz, Clarence Alan; Mitloehner, F. M.

ASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010. 2010. p. 446-453 (ASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Hafner SD, Montes F, Rotz CA, Mitloehner FM. A farm-level model of VOC emission from silage. In ASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010. 2010. p. 446-453. (ASABE - International Symposium on Air Quality and Waste Management for Agriculture 2010).