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Enhanced Ethanol Reactor Operation Through Periodic Forcing of the Feed Rate

机译：通过定期强制进料速率增强乙醇反应器的运行

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摘要

This paper investigates the dynamic performance of bioethanol production process. The process is simulated by an experimentally validated model in the literature. The analysis of the open loop system revealed that the maximum productivity occurred at a moderate ethanol production and substrate consumption. Improvement of the process productivity beyond the maximum value is sought through periodic input forcing. Rectangular pulses were used to simulate the periodic input function because they are suitable for discrete control systems. The parameters of the rectangular pulse such as period, amplitude and central value were designed using numerical optimization. Forcing the optimized cycling input into the process revealed substantial increment of the ethanol production and substrate consumption. However, the obtained enhancement of productivity is considered marginal when compared to the existing maximum productivity. On the other hand, enrichment of productivity is considered reasonable when compared to that obtained when the process operates at steady state using the average value for the input periodic function.
机译：本文研究了生物乙醇生产过程的动态性能。该过程是通过文献中经过实验验证的模型来模拟的。对开环系统的分析表明，最大的生产率发生在适度的乙醇生产和底物消耗的情况下。通过周期性的输入强制来寻求将过程生产率提高至超过最大值。矩形脉冲用于模拟周期性输入功能，因为它们适用于离散控制系统。使用数值优化设计矩形脉冲的参数，例如周期，幅度和中心值。迫使优化的循环输入进入该过程，显示出乙醇产量和底物消耗的显着增加。但是，与现有的最大生产率相比，生产率的提高被认为是微不足道的。另一方面，与使用输入周期函数的平均值使过程在稳态下运行时获得的生产率相比，生产率的提高被认为是合理的。

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