In this study, ADM1-based kinetics were combined with a thermal model that accounts for various heat transfers inside and through the reactor’s boundaries. Computing the energy of bioreactions based on kinetic rates prevented an overestimation of approximately 20% in the heat demand of the heat exchanger, compared to calculations using feedstock degradation heat. This also improved the representation of the digester’s thermal and reactional inertia. Simulations across different climates demonstrated the necessity to tailor digester construction. In the North West United Kingdom, biogas auto-consumption was 23% higher than that of the same reactor in South West France. Enhancing the thermal insulation of the digester reduced heat losses by 37% in the United Kingdom. Therefore, coupling the kinetic and thermal models expands the insights that can be extracted from simulations, which can be valuable in optimizing the operation and design of biogas digesters.

中文翻译：

---

结合热模型和动力学：厌氧消化池动力学模拟的意义


在这项研究中，基于 ADM1 的动力学与热模型相结合，该模型考虑了反应器边界内部和穿过反应器边界的各种热传递。与使用原料降解热进行计算相比，基于动力学速率计算生物反应的能量可以防止高估热交换器的热需求约 20%。这也改进了发酵罐的热惯性和反作用惯性的表示。不同气候下的模拟表明了定制沼气池结构的必要性。在英国西北部，沼气自动消耗量比法国西南部的同一反应器高 23%。在英国，增强蒸煮池的隔热性使热损失减少了 37%。因此，动力学和热动力学模型耦合扩展了可以从仿真中提取的见解，这对于优化沼气池的运行和设计很有价值。