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The thermal properties of freshcut unfermented alfalfa haylage have been published earlier. Both the thermal conductivity and die diffusivity were found to be dependent on bulk density and moisture content. This paper presents the results of three replications of four conductivity and four diffusivity tests carried out on ensiled alfalfa haylage. The moisture contents were 59 and 68%, the bulk densities 400 and 600 kg/m3. The objective of the tests was to uncover possible differences between the thermal properties of fresh-cut and ensiled haylage. The results of the present tests indicate that there is no significant difference in the conductivities of fresh-cut and ensiled haylage of the same moisture content and bulk density. The diffusivity of ensiled alfalfa haylage appears to be about 90% of that of fresh-cut material of the same moisture content and bulk density. It is recommended that the same prediction equation be used to estimate the thermal conductivities of fresh-cut and ensiled alfalfa haylage. It compares favorably with Pitt
thermal properties of ensiled haylage
Jiang, S. and J.C. Jofriet 1988. THERMAL PROPERTIES OF ENSILED HAYLAGE. Canadian Agricultural Engineering 30(2):243-248.
243 - 248