Abstract: The energy system of a monosodium glutamate producer was classified into three sub-systems (three links：energy-conversion link, energy-use-link and energy-recovery link) based on the three-links-model for process energy systems in this paper. The three-links-model (including physical model and mathematical model) for the monosodium glutamate producer energy system was established. Global energy and exergy analyses were completed for the monosodium glutamate producer based on the “three-links” model, and the energy efficiencies of the three-links of process energy system was given respectively according the analyses results. Some factors that caused low energy efficiency and high exergy loss were discussed and analyzed. The monosodium glutamate producer has enormous energy savings potential.

摘要： 根据所建立的味精企业“三环节”能量结构模型，对某味精生产企业的能量系统进行了热量平衡、火用 平衡以及能量效率的计算和分析，并分别对能量利用环节、能量回收环节和能量转换环节的能量利用、能量回收和能量转换效率进行了评价，分析研究了该厂各环节能量效率低下的因素，指出了该厂存在着巨大的节能潜力。