30 Jul '14, 2pm

From Grass in the Field to Fuel in the Hopper: On-Farm Grass Energy is an Opportunity for Farmers

From Grass in the Field to Fuel in the Hopper: On-Farm Grass Energy is an Opportunity for Farmers

Switchgrass growing at the University of Vermont Horticulture Farm in South Burlington, Vermont. Credit: Vermont Bioenergy Initiative There are four main models for implementing grass energy on a farm. The models differ from each other in where the grass is grown and processed. Two are closed-loop models, in which the grass is grown and processed on-site, and the others are variations of processing the grass in a central facility and distributing production of the feedstock among regional farms. Grass fuel can occur as bales that get chopped just prior to combustion or densified fuels like pellets, cubes, or briquettes. The densified fuels are made using machinery that applies high temperature and pressure to the chopped feedstock, pressing it into the desired shape. A series of dies and knives are responsible for cutting the fuel into its desired shape. Each of the four g...

Full article: http://www.renewableenergyworld.com/rea/news/article/2014...

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