Gas sampling efficiencies and aerodynamic characteristics of a laboratory wind tunnel for odour measurement

Article

Sohn, J. H., Smith, R. J., Hudson, N. A. and Choi, H. L.. 2005. "Gas sampling efficiencies and aerodynamic characteristics of a laboratory wind tunnel for odour measurement." Biosystems Engineering. 92 (1), pp. 37-46. https://doi.org/10.1016/j.biosystemseng.2005.05.010
Article Title

Gas sampling efficiencies and aerodynamic characteristics of a laboratory wind tunnel for odour measurement

ERA Journal ID3455
Article CategoryArticle
AuthorsSohn, J. H. (Author), Smith, R. J. (Author), Hudson, N. A. (Author) and Choi, H. L. (Author)
Journal TitleBiosystems Engineering
Journal Citation92 (1), pp. 37-46
Number of Pages10
Year2005
PublisherElsevier
Place of PublicationUnited Kingdom
ISSN1537-5110
1537-5129
Digital Object Identifier (DOI)https://doi.org/10.1016/j.biosystemseng.2005.05.010
Web Address (URL)http://www.sciencedirect.com/science/journal/15375110
Abstract

The rate of odour emission depends on meteorological factors, such as wind speed, humidity and temperature,
but no wind tunnels control these factors adequately. A novel laboratory wind tunnel was developed that can control airflow rate. The gas recovery efficiency of the tunnel was evaluated and the aerodynamic characteristics were then examined to further assess its performance. Gas recovery efficiencies ranged from 62 to 107% with an average of 81%. The optimal performance of the tunnel (gas recovery efficiency of 89%) occurred at an airflow rate and CO supply rate of 1.68m3 min-1 and 10.0 l min-1, respectively. The vertical and cross-sectional wind speed profiles exhibited a substantial degree of non-uniformity. The airflow was turbulent, although Reynolds numbers were low indicating it to be close to laminar. The non-uniform wind
speed profiles and CO concentration profiles illustrate the difficulty in obtaining representative samples from which to calculate emission rates. Further work is required to improve aerodynamic characteristics and hence performance of the tunnel.

Keywordsodour emissions; measurement; wind tunnel; gas sampling efficiencies
ANZSRC Field of Research 2020400199. Aerospace engineering not elsewhere classified
401201. Aerodynamics (excl. hypersonic aerodynamics)
370108. Meteorology
Public Notes

File reproduced in accordance with the copyright policy of the publisher/author.

Byline AffiliationsDepartment of Primary Industries and Fisheries, Queensland
Department of Agricultural, Civil and Environmental Engineering
Seoul National University, Korea
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Grabham, Michael, Hornbuckle, John, Raine, Steven R. and Smith, Rod. 2009. "Bankless channel irrigation systems: irrigation performance assessment." Irrigation Australia 2009: Irrigation Australia Irrigation and Drainage Conference: Irrigation Today - Meeting the Challenge. Swan Hill, Australia 18 - 21 Oct 2009 Sydney, Australia.
Characterisation of the micro-tube emitters used in a novel micro-sprinkler
de Almeida, Ceres Duarte Guedes Cabral, Botrel, Tarlei Arriel and Smith, Rod J.. 2009. "Characterisation of the micro-tube emitters used in a novel micro-sprinkler." Irrigation Science. 27 (3), pp. 209-214. https://doi.org/10.1007/s00271-008-0135-y
Empirical functions for dependent variables in cutback furrow irrigation
Navabian, M., Liaghat, A. M., Smith, R. J. and Abbasi, F.. 2009. "Empirical functions for dependent variables in cutback furrow irrigation." Irrigation Science. 27 (3), pp. 215-222. https://doi.org/10.1007/s00271-008-0138-8
Measurement and management of furrow irrigation at the field scale
Gillies, Malcolm H., Smith, R. J. and Raine, Steven R.. 2008. "Measurement and management of furrow irrigation at the field scale." Irrigation Australia 2008: Irrigation Association of Australia National Conference and Exhibition: Share the Water, Share the Benefits. Melbourne, Australia 20 - 22 May 2008
Toward a simple real-time control system for efficient management of furrow irrigation
Khatri, Kanya L. and Smith, R. J.. 2007. "Toward a simple real-time control system for efficient management of furrow irrigation." Irrigation and Drainage. 56 (4), pp. 463-475. https://doi.org/10.1002/ird.319
Managing spatial and temporal variability in irrigated agriculture through adaptive control
Smith, R. J., Raine, Steven R., McCarthy, Alison and Hancock, Nigel. 2007. "Managing spatial and temporal variability in irrigated agriculture through adaptive control." Banhazi, T. M. and Saunders, C. (ed.) SEAg 2007: Agriculture and Engineering - Challenge Today, Technology Tomorrow. Adelaide, Australia 24 - 26 Sep 2007 Australia.
Errors in predicting furrow irrigation performance using single measures of infiltration
Langat, Philip K., Raine, Steven R. and Smith, R. J.. 2007. "Errors in predicting furrow irrigation performance using single measures of infiltration." Irrigation Science. 25 (4), pp. 339-349. https://doi.org/10.1007/s00271-006-0049-5
A decision support model for travelling gun irrigation machines
Smith, Rod, Gillies, Malcolm H., Newell, Geoffrey and Foley, Joseph P.. 2007. "A decision support model for travelling gun irrigation machines." CIGR 2006: Agricultural Engineering for a Better World. Bonn, Germany 03 - 07 Sep 2006
Recommended methods for the preconditioning of odourous air prior to treatment in organic biofilters
Craig, Ian, Sohn, Jae Ho and Kim, Tae I.. 2004. Recommended methods for the preconditioning of odourous air prior to treatment in organic biofilters . Toowoomba, Australia. University of Southern Queensland.
Real time control of surface irrigation: managing infiltration variations and enhancing furrow irrigation performance
Khatri, K. L., Smith, R. J. and Raine, Steven R.. 2006. "Real time control of surface irrigation: managing infiltration variations and enhancing furrow irrigation performance." Irrigation Australia 2006: Irrigation Association of Australia National Conference and Exhibition. Brisbane, Australia 09 - 11 May 2006 Brisbane.
Is it possible to extract infiltration rates for variable inflow furrow irrigation?
Gillies, Malcolm H., Smith, R. J. and Raine, Steven R.. 2006. "Is it possible to extract infiltration rates for variable inflow furrow irrigation?" Irrigation Australia 2006: Irrigation Association of Australia National Conference and Exhibition. Brisbane, Australia 09 - 11 May 2006 Hornsby, NSW, Australia.
Process studies of odour emissions from effluent ponds using machine-based odour measurement
Sohn, Jae Ho, Smith, R. J. and Yoong, Ernest. 2006. "Process studies of odour emissions from effluent ponds using machine-based odour measurement." Atmospheric Environment. 40 (7), pp. 1230-1241. https://doi.org/10.1016/j.atmosenv.2005.10.035
Evaluation of methods for determining infiltration parameters from irrigation advance data
Khatri, K. L. and Smith, R. J.. 2005. "Evaluation of methods for determining infiltration parameters from irrigation advance data." Irrigation and Drainage. 54 (4), pp. 467-482. https://doi.org/10.1002/ird.198