Abstract
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Article Information:
Simulation of the Microclimate in Poultry Structures in Kenya
E.B.K. Mutai, P.O. Otieno, A.N. Gitau, D.O. Mbuge and D.A. Mutuli
Corresponding Author: Emmanuel B.K. Mutai
Submitted: 2010 August, 19
Accepted: 2011 June, 15
Published: 2011 July, 25 |
Abstract:
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A computer model based on the thermodynamic principles was developed for simulating the internal
temperature responses in a naturally ventilated broiler chicken house. The model used transient thermal analysis
with suitable initial and boundary conditions. Developed relationships had the input parameters: outside air
temperature; total solar radiation; mass rate of airflow; properties and dimensions of the constructional
materials; number of broilers and their average weight as well as the air properties to predict hourly internal
air temperature. The mathematical model of the internal temperatures was implemented using a computer
program written in Visual BASIC. The program solves analytically the temperatures of the building with the
results presented, which compare the model with experimental measurements made in a naturally ventilated
poultry house. Experiments were performed using a physical model to test and verify the model at the
University of Nairobi, Department of Animal Production at Kabete Campus, between January and May 2009.
Results showed no significant difference between the internal air temperatures obtained by simulations and
observed measurements. Statistical analysis indicated that the model adequately simulated the internal
environment of the building with good linear regression with a coefficient of determination of 0.978.
Key words: Broiler, building, environment, heat transfer, mathematical model, Poultry Sim, ventilation
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Cite this Reference:
E.B.K. Mutai, P.O. Otieno, A.N. Gitau, D.O. Mbuge and D.A. Mutuli, . Simulation of the Microclimate in Poultry Structures in Kenya. Research Journal of Applied Sciences, Engineering and Technology, (07): 579-588.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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