Jay D. Harmon

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authors are solely responsible for the content of this technical presentation. The technical presentation does not necessarily reflect the official position of the American Society of Agricultural and Biological Engineers (ASABE), and its printing and distribution does not constitute an endorsement of views which may be expressed. Technical presentations(More)
A strategy for providing partial biofiltration of a critical minimum amount of ventilation air (CMVR) from a hybrid ventilated swine finishing facility was developed and tested. The CMVR, defined as the minimum treated exhaust air that suppressed nighttime curtain opening movement, was set at 81 m 3 h ‐1 pig ‐1 with the intention of providing enough fan(More)
authors are solely responsible for the content of this technical presentation. The technical presentation does not necessarily reflect the official position of the American Society of Agricultural and Biological Engineers (ASABE), and its printing and distribution does not constitute an endorsement of views which may be expressed. Technical presentations(More)
A model, called the Community Assessment Model for Odor Dispersion (CAM), was developed to predict receptor odor exposure from multiple swine production sources. The intended use of CAM was to provide a tool for evaluating the odor exposure to receptors in a community when siting new swine production systems and how a change in odor control technologies(More)
Research was conducted from May 2004 through September 2005 to investigate the concentration of hydrogen sulfide (H 2 S) at the perimeter of nine swine operations across the state of Iowa and the ammonia (NH 3) and H 2 S concentrations near and inside residences located in the community of swine operations and in one area of the state not associated with(More)
The community assessment model (CAM) for odor dispersion is a tool to assist in the siting of swine production facilities. CAM considers the size and type of a swine production system, local historical weather conditions, and odor control implementation. It predicts the number of hours of exposure to various levels of odor, by month, for each receptor in a(More)
A Mobile Ambient Laboratory (MAL) was placed at a residence in a community with two swine‐barn emission sites and one land application area to observe real‐time atmospheric stability, ammonia (NH 3) and hydrogen sulfide (H 2 S) concentrations surrounding and within the residence during a 12‐week period. Significant differences in NH 3 and H 2 S(More)
  • T D Glanville, T L Richard — Co-Pi, J D Harmon — Co-Pi, K Ahn, Thomas D Glanville, Tom L Richard +12 others
  • 2006
PREFACE This report presents key results of a three-year study sponsored primarily by the Iowa Department of Natural Resources. Biosecurity studies included in this project were partially funded through a USDA-National Research Initiative grant. Primary objectives of the study were to evaluate the effectiveness, environmental impacts, and biosecurity of(More)
An unvented liquid propane–gas (LP) space heater, often used in animal housing, was modified to provide automated variable heat output. As manufactured, the heater had manually–adjusted output settings between 14.7 and 29.3 kW (50,000 and 100,000 Btu/h). The heater was modified by adding a stepper motor and speed reducer to the manual proportioning valve to(More)