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BIOMASS ENERGETIC POTENTIAL FROM TIMBER HARVESTING AT DIFFERENT TIMES OF STORAGE

机译：不同存储时间的木材采伐产生的生物量能势

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?This research aimed to characterize the energetic potential of chips of biomass residues from timber harvesting, stored outdoors in the field and indoors in the industry throughout different storage times, in order to improve the potential of the materials for energy generation. The study was performed in operational areas of a forestry company located in the Northeast region of the state of Santa Catarina, Brazil, in a Pinus taeda stand. Chips stored in the different storage types were evaluated at the times of 30, 60, 90, 120, 150, and 180 days, according to the following physical and chemical parameters: moisture content, calorific value, and ash content. Data were subjected to analysis of variance and to the Tukey’s post hoc means comparison test at 95% of probability. The results showed that the lowest moisture content was obtained in chips stored indoors for 60 days, whereas for chips stored outdoors the lowest moisture content occurred at 30 days. The chips stored outdoors for 30 days showed a higher calorific value of 4,792 Kcal.Kg-1, whereas chips stored indoors for 60 days had calorific value equivalent to the other storage times, 4,706 Kcal.Kg-1. Regarding the ash content, the best storage time for chips stored outdoors was 30 days, presenting an average ash content of 0.9%. Meanwhile, in the indoors storage, the ash content of the chips remained at low levels throughout the evaluated period. The indoor chip storage has proven to be the best option for use of biomass residues from timber harvesting for energy purposes.
机译：这项研究旨在表征采伐木材时产生的生物质残渣碎片的能量潜能，该能量潜能在不同的存储时间存储在野外和工业室内，以提高材料的发电潜力。这项研究是在巴西圣卡塔琳娜州东北地区的一家林业公司的业务区域中进行的，该公司在Pinus taeda林分中。根据以下物理和化学参数（水分含量，热值和灰分含量），在30、60、90、120、150和180天的时间对存储在不同存储类型中的切屑进行了评估。对数据进行方差分析，并以95％的概率进行Tukey事后均值比较测试。结果表明，在室内存放60天的木片中获得最低的水分含量，而在室外存放的木屑中，在30天时出现最低水分含量。在户外存放30天的木屑的发热量更高，为4,792 Kcal.Kg-1，而在室内存放60天的木屑的发热量等于其他存储时间的4,706 Kcal.Kg-1。关于灰分，户外存放的木屑的最佳存放时间为30天，平均灰分为0.9％。同时，在室内储藏室中，木屑的灰分含量在整个评估期间保持在较低水平。事实证明，室内屑库是利用木材采伐中的生物质残余物进行能源利用的最佳选择。

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