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Thermochemical and physical evaluation of poplar genotypes as short rotation forestry crops for energy use

机译：杨树基因型短轮作农作物能源利用的热化学和物理评价

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摘要

Short rotation plantations of fast-growing species provide a promising way to produce heat and electricity from renewable sources. The thermo-chemical and physical properties of different genotypes of poplar in short rotation forestry crops grown at three locations with different climatic and edaphic characteristics as well as planting density, have been determined in order to characterize the most appropriate biomass in terms of energy potential. The planting density was 6666 or 13,333 trees/ha (depending on the location) in a rotation of three-four years and the analysis was carried out at the end of the first rotation. For all the genotypes, experimental tests to quantify the moisture content, particle size distribution, bulk density, heating value, ash content and composition as well as the volatile matter were performed. In addition, natural air drying of biomass (stem and branches) was studied in two locations with the aim of determining the humidity loss during raw storage. A significant effect of the genotype and the planting density on the biomass properties was observed. The results obtained indicate that 'Monviso' and 'Viriato' are the most suitable genotypes. No operational problems related to ash fouling and deposition in combustion devices are expected for any of the genotypes studied. (C) 2016 Elsevier Ltd. All rights reserved.
机译：快速生长的物种的短轮伐人工林提供了一种从可再生能源生产热和电的有前途的方式。为了在能源潜力方面表征最合适的生物量，已确定了在三个具有不同气候和地理特征以及种植密度的地点种植的短轮伐林作物中不同基因型的杨树的热化学和物理性质。每三年轮换种植密度为6666或13,333棵树/公顷（取决于位置），在第一次轮换结束时进行分析。对于所有基因型，均进行了实验测试以量化水分含量，粒度分布，堆积密度，热值，灰分含量和组成以及挥发性物质。此外，还对两个位置的自然风干生物质（茎和枝）进行了研究，目的是确定原始存储过程中的湿度损失。观察到基因型和种植密度对生物量特性的显着影响。获得的结果表明“ Monviso”和“ Viriato”是最合适的基因型。对于所研究的任何基因型，都没有与燃烧装置中灰烬结垢和沉积有关的操作问题。 （C）2016 Elsevier Ltd.保留所有权利。

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