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Thermoeconomic comparison between the performance of small-scale internal combustion engines and gas turbines integrated with a biomass gasifier

机译：小型内燃机和集成了生物质气化炉的燃气轮机性能的热经济学比较

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Recently, many countries have paid substantial attention to power generation from biomass gasification, particularly through small-scale plants. A number of power plant models have been suggested and analyzed; however, certainly, desirable configurations have not been identified yet. Moreover, their performances are ordinarily difficult to compare, especially owing to the fact that working hypotheses are often inconsistent. The objective of this research is to provide an overview on small-scale technologies regarding woody biomass syngas utilization for power production, with the purpose of introducing the most promising solutions from both thermodynamic and economic viewpoints. Existing technologies or those possibly anticipated to be available on the market in the near future have been taken into consideration. Three plant scales have been investigated including 100 kWel, 1 MWel and 5 MWel. As small-scale power plants, internal combustion engines and internal (micro) gas turbines have been taken into account, while gasification has been focused for biomass. Simulations demonstrate that internal combustion engine integrated with an ambient pressure gasifier and regenerative gas turbine integrated with a pressurized gasifier are the most favorable technologies at all the three sizes from a thermodynamic point of view. However, among these two solutions, the former configuration is the most promising one at all the scales from an economic point of view as well.
机译：近来，许多国家特别关注通过生物质气化发电，特别是通过小型工厂发电。已经提出并分析了许多电厂模型。但是，当然，尚未确定期望的配置。而且，它们的性能通常很难比较，尤其是由于工作假设经常不一致的事实。这项研究的目的是提供有关利用木质生物质合成气发电的小型技术的概述，目的是从热力学和经济角度介绍最有前途的解决方案。已经考虑了现有技术或可能在不久的将来在市场上获得的技术。已经研究了三个工厂规模，包括100 kWel，1 MWel和5 MWel。作为小型发电厂，已经考虑了内燃机和内部（微型）燃气轮机，而气化已集中于生物质。仿真表明，从热力学角度来看，集成有环境压力气化器的内燃机和集成有加压气化器的可再生燃气轮机是这三种尺寸中最有利的技术。但是，在这两种解决方案中，从经济角度来看，从所有规模来看，前一种配置也是最有前途的。

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