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In-field Direct Combustion Fuel Property Changes of Switchgrass Harvested from Summer to Fall by C.A. Ogden; K.E. Ileleji; K.D. Johnson; Q. Wang is a Engineering article available to read on EtoBox.

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Switchgrass, a perennial warm-season grass and potential energy crop, is usually harvested during the time between full maturity in the fall to the following spring. During this wide harvest window, the changes in fuel properties that could occur are important for making appropriate decisions with respect to the optimum harvest time for maximum fuel quality. A field plot study was carried out to investigate the quantitative fuel properties (proximate, ultimate and mineral analyses) of switchgrass over a harvest period from crop maturity in July through November. Harvest moisture decreased from July to November and moisture was uniformly distributed in the switchgrass plant at all times in the harvest period. There were significant differences in ash, volatiles, fixed carbon and nitrogen among months of harvest. Nitrogen, ash and fixed carbon contents decreased while oxygen and volatiles increased through the harvest period. Also, there were significant differences in oxides of silicon, calcium, potassium, phosphorus and sulfur among harvest times. The concentration of oxides of potassium and sulfur decreased at the end of the harvesting period. Fouling and slagging indices decrease

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Author

C.A. Ogden; K.E. Ileleji; K.D. Johnson; Q. Wang

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-3820)

Published

2010

Language

EN

Field

Engineering (Physical Sciences)