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首页> 外文期刊>Applied thermal engineering: Design, processes, equipment, economics >Experimental-numerical analysis of a biomass fueled microgeneration power-plant based on microturbine
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Experimental-numerical analysis of a biomass fueled microgeneration power-plant based on microturbine

机译：基于微型涡轮机的生物质燃料微型发电厂的实验数值分析

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Thermal use of biomass may have a significant role in the scheme of distributed power generation from renewable sources as it is intrinsically programmable. Moreover, if the furnace is designed for flexible fueling (multifueling), this feature gives maximum flexibility also from the standpoint of fuel availability and storage over the year. To fully exploit the fuel potential, the optimal size for these systems is in the lower range end (100 kW) for reasons mainly related to the fuel logistic chain. A Combined Heat and Power (CHP) configuration is furthermore important to balance the relatively low electric efficiency (in the order of 15% and less). In this paper a technology based on an Externally Fired Gas Turbine (EFGT) fed by woody biomass is demonstrated in the range of 70 kW electric power output. A multifuel prototype power-plant realized at the University of Rome Tor Vergata is described, and experimental data in terms of power, efficiency and fuel consumption are presented. To better understand the impact of fuel properties on power-plant performance, a model has also been developed, by means of physical sub-models describing each component of the power-plant (biomass furnace, heat exchangers, compressor and turbine). The use of simple economic and management models is also discussed to better assess the economic sustainability of the solution depending on the characteristics of the fuel (fuel-end), matched with the utilization pattern (user-end), with special regard to thermal energy value over the year.
机译：生物质的热利用在可再生能源的分布式发电方案中可能具有重要作用，因为它本质上是可编程的。此外，如果炉子设计用于灵活加油（多加油），则从一年中可获得的燃料和存储的角度来看，此功能还可以提供最大的灵活性。为了充分利用燃料潜力，这些系统的最佳尺寸是在较低端（100 kW），原因主要是与燃料物流链有关。热电联产（CHP）配置对于平衡相对较低的电效率（大约15％或更少）非常重要。在本文中，基于木质生物质的外燃式燃气轮机（EFGT）的技术在70 kW的功率输出范围内得到了证明。描述了在罗马Tor Vergata大学实现的多燃料原型发电厂，并提供了有关功率，效率和燃料消耗的实验数据。为了更好地理解燃料性质对电厂性能的影响，还通过描述电厂各个部件（生物质炉，热交换器，压缩机和涡轮机）的物理子模型，开发了一个模型。还讨论了使用简单的经济和管理模型以更好地评估解决方案的经济可持续性的方法，具体取决于燃料的特性（燃料端），与利用模式（用户端）相匹配，并特别关注热能一年的价值。

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