在固体无氧消化物的循环加载期间,弹性回收in-die
Grzegorz Łysiak1, Ryszard Kulig1
1Department of Food Engineering and Machines, University of Life Sciences in Lublin, Głęboka St. 28, 20-612 Lublin, Poland.
Materials (Basel, Switzerland)
|December 17, 2024
概括
无氧消化剂的颗粒化提高了其作为肥料或生物燃料的可用性. 这项研究发现,虽然弹性回收 (ERin-die) 受水分和压力的影响,但永久应变能量是决定颗粒质量的关键因素.
科学领域:
- 农业工程 农业工程
- 材料科学 材料科学 材料科学
- 生物质加工生物质加工
背景情况:
- 无氧消化剂是一种有价值的有机副产品,其潜力未得到充分利用.
- 颗粒化增强了消化物储存能力,可运输性,以及作为肥料或生物燃料的应用.
- 了解密集机制对于优化颗粒质量至关重要.
研究的目的:
- 为了研究在消化凝固过程中内死应力放松和颗粒延长的机制.
- 为了确定弹性回收 (ERin-die) 对颗粒质量的影响.
- 在密集化过程中确定影响颗粒质量的关键参数.
主要方法:
- 实验使用Zwick通用测试机进行.
- 具有不同水分含量 (10-22%) 的消化样品在不同的压缩压力 (8-20 kN) 下经历了多次加载/卸载周期 (10 个周期).
- 测量和分析了弹性回收 (ERin-die) 和永久应变能量.
主要成果:
- 弹性回收 (ERin-die) 随着水分含量和压缩压力的增加而增加,但随着循环数量的增加而减少.
- 弹性恢复 (ERin-die) 和最终颗粒强度之间存在弱相关性.
- 永久应变能量被确定为影响颗粒质量的主要因素.
结论:
- 永久应变能量,而不是弹性回收,是决定压缩消化颗粒质量的主要因素.
- 对hysteresis循环行为的进一步研究可以为弹现象提供更深入的见解.
- 优化消化剂颗粒化需要专注于最大限度地提高永久性应变能量,以提高产品质量.
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