论文信息 - A technique for measuring the permeability of silage at low pressure gradients

A technique for measuring the permeability of silage at low pressure gradients

Abstract An experimental technique and mathematical analysis are described which allow the measurement of the permeability of silage to air using small silage samples (approximately 2 litres) and small pressure gradients (up to 200 Pa/m). Permeabilities in the range 16 to 207 μm2 have been found. The permeability depends on the silage density and on other variables, which probably include porosity, moisture content and chop length.

David J. Parsons | R. P. Hoxey

[1] E. Audsley,et al. Some physical properties that affect the rate of diffusion of oxygen into silage , 1983, The Journal of Agricultural Science.

[2] F. Crawford,et al. Flow of fluids through porous mediums , 1966 .

[3] E. Audsley,et al. Apparatus for obtaining an undisturbed core of silage and for measuring the porosity and gas diffusion in the sample , 1983 .