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Development of a simulation model for a ventilation system for a swine building.

Authors
Zhang-L; Smith-TF; O'Shaughnessy-PT
Source
Department of Occupational and Environmental Health, The University of Iowa, Iowa City, Iowa 52240-5000, 2002 Mar :1-22
Link
NIOSHTIC No.
20023596
Abstract
The objective of this study was to develop a simulation model of a ventilation system in a modern swine building used for farrowing pigs. The building was divided into two zones: the room where the pigs reside and the pit that stores the waste. In addition to a space heater and lamps, two fans located in the side wall of the room and one fan located in the end wall of the pit were used to control the indoor temperature. A differential equation expressing the conservation of energy was written for each zone. The room equation contained heat generation terms to account for thermal energy due to lights, heaters, and pigs. Control strategies based on an actUal controller in the room were developed,to activate the heaters, lights, and fans to maintain room temperature at a setpoint. An icon-based software was used to solve the system of equations that represent the model. The model was validated by comparing numerical and experimental results. By systematic adjustment of a limited number of model parameters, the model results are in agreement with the experimental data
Keywords
Agricultural-products; Agriculture; Air-contamination; Animals; Ventilation; Ventilation-systems; Mathematical-models; Control-technology
Contact
Department of Occupational and Environmental Health, The University of Iowa, Iowa City, Iowa 52240-5000
Publication Date
20020301
Document Type
Other
Funding Amount
162000
Funding Type
Grant
Fiscal Year
2002
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-K01-OH-000176
Priority Area
Research Tools and Approaches: Control Technology and Personal Protective Equipment
Source Name
Department of Occupational and Environmental Health, The University of Iowa, Iowa City, Iowa 52240-5000
State
IA
Performing Organization
Department of Occupational and Environmental Health, Institute for Rural and Environmental Health, The University of Iowa, Iowa City, Iowa 52242-5000
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