This research carried out in Brazil, researched trees felled in different seasons and logs stored for various lengths of time.
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The research article is titled “Storage as a tool to improve wood fuel quality”, and was published in the Biomass and Bioenergy Journal, Volume 35 (2011), pp. 2581 to 2588. The species studied were Pinus taeda and Eucalyptus dunnii. After harvesting, the logs were stacked for storage. Felling took place in the four different seasons (spring, autumn, winter and summer).
The logs were analysed immediately after felling, before storage had taken place, and then again two, four and six months after harvesting. The properties that were evaluated were moisture content, calorific value, ash content, and solubility in cold water, hot water and sodium hydroxide.
The results showed that the species, length of storage, the harvesting season and the storage season affected the biomass properties. The results achieved from the eucalypts were better than the pine, due to it losing moisture quicker, having less variation in chemical composition and producing higher energy gains over time. The most suitable storage time for both species was four months. The highest energy values were obtained when harvesting at the end of winter, or beginning of spring, and the logs were stored during the summer.
The authors of this article were Martha Brand, Graciela de Muniz, Waldir Quirino and Jose Brito. For a more complete account of the research, please consult the journal. Source: http://www.elsevier.com/locate/biombioe
The research article is titled “Storage as a tool to improve wood fuel quality”, and was published in the Biomass and Bioenergy Journal, Volume 35 (2011), pp. 2581 to 2588. The species studied were Pinus taeda and Eucalyptus dunnii. After harvesting, the logs were stacked for storage. Felling took place in the four different seasons (spring, autumn, winter and summer).
The logs were analysed immediately after felling, before storage had taken place, and then again two, four and six months after harvesting. The properties that were evaluated were moisture content, calorific value, ash content, and solubility in cold water, hot water and sodium hydroxide.
The results showed that the species, length of storage, the harvesting season and the storage season affected the biomass properties. The results achieved from the eucalypts were better than the pine, due to it losing moisture quicker, having less variation in chemical composition and producing higher energy gains over time. The most suitable storage time for both species was four months. The highest energy values were obtained when harvesting at the end of winter, or beginning of spring, and the logs were stored during the summer.
The authors of this article were Martha Brand, Graciela de Muniz, Waldir Quirino and Jose Brito. For a more complete account of the research, please consult the journal. Source: http://www.elsevier.com/locate/biombioe