Aerobic and anaerobic storage of wood chips from coniferous forest residues, coniferous energy roundwood and short rotation coppice were investigated regarding dry matter losses, energy losses and changes in fuel properties using several approaches, i.e. a field trial with 90 m³ wood chip piles, small-scale storage containers (0.5 m³) incl. greenhouse gas measurements and miniature bunker silos (1.5–2 m³). After storage, selected fuels were combusted in a 30 kW wood chip boiler and emissions (CO, NO_X, TPM) were measured.

Dry matter losses in fleece-covered piles were 7%–9% after 153 days of storage. Drying compensated for energy losses. Container trials achieved full anaerobic conditions in the lab reducing dry matter losses to 0.4–2% while preserving fuel properties. Methane emissions during anaerobic storage in containers were low. Anaerobic conditions could not be achieved in outdoor bunker silos due to insufficient airtightness. The mass fraction of H₂O in fuels increased in bunker silos by 4.2–10.4% due to precipitation and dry matter losses up to 22% were recorded. During combustion, CO and TPM emissions were often increased significantly with materials that were stored in silos or piles compared to technically dried fuels, most likely due to changes in their woody or physical-mechanical structure and their mass fraction of H₂O.

Anaerobic storage might in theory be an interesting option to reduce dry matter losses but could not sufficiently be realized during this study using miniature bunker silos. For many applications, aerobic storage in fleece-covered piles seems preferable to anaerobic storage.

使用几种方法研究了针叶林残渣，针叶能源圆木和短轮伐木的木片的好氧和厌氧存储，以了解干物质损失，能量损失和燃料性质变化的方法，即使用90 m ³木片桩进行小规模实地试验规模的存储容器（0.5 m ³），含 温室气体测量和微型仓（1.5–2 m ³）。储存后，将选定的燃料在30 kW的木屑锅炉中燃烧，并测量排放量（CO，NO _X，TPM）。

储存153天后，羊毛覆盖的桩中的干物质损失为7％–9％。干燥补偿了能量损失。容器试验在实验室中达到了完全厌氧条件，将干物质损失降至0.4–2％，同时保留了燃料特性。厌氧储存在容器中的甲烷排放量很低。由于气密性不足，无法在室外燃料仓中达到厌氧条件。H ₂的质量分数燃料仓中燃料中的O增加了4.2-10.4％，这是由于降水造成的，干物质损失高达22％。与工业干燥的燃料相比，在燃烧过程中，与储存在筒仓或堆中的材料相比，CO和TPM排放通常显着增加，这很可能是由于其木质或物理机械结构的变化以及H ₂ O的质量分数。

理论上，厌氧存储可能是减少干物质损失的一个有趣的选择，但在本研究中使用微型料仓则无法充分实现厌氧存储。对于许多应用，用羊毛覆盖的桩进行好氧存储似乎比无氧存储更好。