Electronic Theses and Dissertations

Award Winner

Recipient of the 2005 Outstanding Master's Thesis Award - Third Place.

To go to the Graduate Student Award Recipients collection page, click here.

Award/Availability

Open Access Thesis

Abstract

A comparison was made between predicted and measured odor concentration downwind of two hog finishing confinements. Two Gaussian dispersion models, STINK.BAK and AERMOD, were used. The experimental cases examined odor emanating from a mechanically-ventilated facility and a curtain-sided facility during summer 2003. A field olfactometer was used to measure odor concentration. The odor concentrations served as input to STINK.BAK, which then estimated the odor emission rate from the confinement. AERMOD used this emission rate and other meteorological data to predict the peak concentration of odor around the confinement over the sampling hour. The calculated odor emission rates are slightly higher than those reported in the literature. At 25°C, the odor emission rate is estimated at 27.8 OU/ni2/s for the mechanically-ventilated confinement and 32.7 OU/m2 /s for the curtain-sided confinement. Odor release from the curtain-sided confinement was found to be higher than the mechanically-ventilated facility. A correlation with ambient temperature was observed. Measured concentrations were compared to predicted peak concentrations over the sampling hour. The forecast odor plume compared well to the observations. The importance of the meteorological information was shown to be of primary importance in plume forecast accuracy.

Date of Award

2004

Degree Name

Master of Science

Department

Department of Earth Science

First Advisor

Alan C. Czarnetzki, Chair, Thesis Committee

Comments

If you are the rightful copyright holder of this thesis and wish to have it removed from the Open Access Collection, please submit an email request to scholarworks@uni.edu. Include your name and clearly identify the thesis by full title and author as shown on the work.

Date Original

5-2004

Object Description

1 PDF file (viii, 90 pages)

Language

EN

File Format

application/pdf

Share

COinS