A novel approach is presented to reduce the moisture content of biomass by employing a solar dryer. The impact of decreasing moisture contents on the key parameters of the system is investigated. Also, the effect of air mass flux on drying rate of biomass is evaluated and discussed considering three alternative air mass flux rates as well as two different time periods for drying and discharging biomass, namely 15 and 30 min. Results demonstrate that moisture reduction improves the output power and efficiency of the system from 265 kW and 30% up to 295 kW and 57.6%, respectively; in other words, employing solar dryer leads to an improvement of electrical efficiency up to 27.6%. The best efficiency performance of system is achieved by the 15 min drain time and air mass flux of 0.011 kgm⁻²s⁻¹, while the best power generation of the system will be obtained by the 30 min drain time and air mass flux of 0.011 kgm⁻²s⁻¹. Furthermore, the levelized cost of electricity analysis exhibits 0.39 $/kWh at the best performance of the system. The environmental analysis shows that the designed power plant has the potential to drop up to 721 tons of CO₂/year, which has yielded an environmental benefit of 17,304 $/year when compared to a coal‐fired power plant of the same capacity.

中文翻译：

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将太阳能干燥器与气化器-固体氧化物燃料电池/微型燃气轮机的混合系统集成：能源，经济和环境分析

提出了一种通过使用太阳能干燥器来减少生物质的水分含量的新颖方法。研究了减少水分含量对系统关键参数的影响。此外，考虑了三种替代空气质量通量率以及两个不同的干燥和排放生物质时间段，即15分钟和30分钟，评估并讨论了空气质量通量对生物质干燥速率的影响。结果表明，减少水分可将系统的输出功率和效率分别从265 kW和30％提高到295 kW和57.6％；换句话说，使用太阳能干燥器可将电效率提高多达27.6％。15分钟的排水时间和0.011 kg m ^-2 s的空气质量通量可实现系统的最佳效率性能^-1，而系统的最佳发电将通过30分钟的排水时间和0.011 kg m ^-2 s ^-1的空气质量通量获得。此外，在系统的最佳性能下，电力分析的平均成本为0.39美元/千瓦时。环境分析表明，与同等容量的燃煤发电厂相比，设计的发电厂有可能每年最多减少721吨CO ₂，从而带来17304美元/年的环境效益。