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Influence of Compression Platen on Specific Energy of Bale Recompressing

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  2012 Dallas, Texas, July 29 - August 1, 2012  121340820.(doi:10.13031/2013.41970)
Authors:   Wencheng Huang, Decheng Wang, Guanghui Wang, Yang Gao, Lu Wang
Keywords:   Wheat straw bale, recompression, compression platen, force, specific energy

Hay bale made by small square baler has a low bulk density ranging from 100 to 180 kg/m3 depending on the grass species and moisture content. Recompression can increase bale density to 400-500 kg/m3, helping reduce storage space and freight rates largely. However, high energy consumption is becoming a main obstacle for producing high-density hay bales. The objective of this research was to determine the specific energy requirements for the recompression of wheat straw bales, when subjected to different types of compression platens.

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