単飼型ケージ式肥育豚舎における隣接豚に対する豚体の放射伝熱形態係数

概要

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The purpose of this investigation was to present thermal radiation configuration factors of a standing pig to an adjoining pig with the same weight as it which were respectively kept in individual cages. The configuration factors were numerically calculated by using computer graphics and numerical integration methods. In order to obtain the configuration factors based on the pig body shapes, three standing surface-models with live weights of 27, 65 and 88 kg were used as subjetcs. These polyhedric surface-models were three-dimensional graphic pigs with many surface-mounted triangular patches. The percentage errors of the calculated configuration factors in thsi study were estimated to be not larger than 1% by the well-known reciprocity relation for configuration factors. The figures for determining the configuration factors in some geometrical relationships between the pig and the adjoining pig were presented as a function of the distance between the pigs with the pig body weight as a parameter.
2008-02-22