This paper focuses on the optimal performance of a small tri‐generation power, heat, and cooling plant, which uses corn stover as the feedstock. First, 100 kg h⁻¹ of the corn stover is converted into syngas by the gasification process, using a downdraft fixed‐bed reactor at gasification temperatures reaching 995 °C and with an oxidant–fuel ratio of 1.65. About 243.18 kg h⁻¹ of product gas mass flow with 4.766 MJ kg⁻¹ of calorific value is supplied to an externally fired gas turbine (EFGT) to convert this fuel to electrical power. It is estimated that the EFGT is capable of producing 70.57 kW of electrical power with a high‐temperature heat exchanger efficiency of 75% and a pressure ratio of 4.84 at a turbine inlet temperature of 875 °C. The absorption refrigeration system is used for the cooling process. The cooling power (ℚ _eva ) of the absorption cooling system is 130.92 kW with a cooling tower temperature of 15 °C and a system performance coefficient (PC) of 0.6. The recovered heat flow to the generator ( ℚ _gen ) and the refrigerating heat flow are 82.62 kW_th and 48.83 kW_ref , respectively, with a circulation ratio of 4.07. For the whole system (gasifier, EFGT, and absorption cooling), the gross electrical efficiency (ηnetEL ) is 21.78% and the net thermal efficiency (η_th ) is 47.43% with a system cooling‐to‐power ratio (CPR) of 1.88. The simulation of this system was conducted using Cycle‐Tempo software. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd

中文翻译：

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玉米秸秆生物质燃料的固定床气化：以埃及为例

本文着重介绍了使用玉米秸秆作为原料的小型三代发电厂，热电厂和制冷厂的最佳性能。首先，在气化温度达到995°C且氧化剂/燃料比为1.65的条件下，使用下沉式固定床反应器，通过气化过程将100 kg h ^-1的玉米秸秆转化为合成气。约243.18 kg h ^-1的产物气体质量流量为4.766 MJ kg ^-1发热量的一部分提供给外燃式燃气轮机（EFGT），以将这种燃料转换为电能。据估计，在涡轮机入口温度为875°C时，EFGT能够产生70.57 kW的电力，高温热交换器效率为75％，压力比为4.84。吸收式制冷系统用于冷却过程。冷却功率（ℚ _EVA） 吸收冷却系统是130.92千瓦0.6的15℃的冷却塔温度和系统的性能系数（PC）。将回收的热流动到所述发电机（ℚ_根）和冷藏热流量是82.62千瓦_个和48.83千瓦 _ref 分别具有4.07的流通比率。对于整个系统（气化炉，EFGT，和吸收式冷却），总电效率（ηnetEL）是21.78％，净热效率（ η_个 ）的47.43％的具有1.88的系统冷却到功率比（CPR） 。使用Cycle-Tempo软件对该系统进行了仿真。©2019年化学工业协会和John Wiley＆Sons，Ltd