【摘要】 如何确定寒冷地区沼气发酵罐保温层厚度对其经济运行和减排效果具有重要影响，文章建立了沼气发酵罐散热模型，COMSOL Multiphysics数值模拟计算结果与现场实测数据相比，最大相对误差为5.59%；建立了以全寿命周期费用、节能率及碳排放为优化目标的沼气发酵罐保温层厚度优化模型，以寒冷地区徐州沼气工程为例，计算得到了两种保温方案两种保温材料的最佳保温层厚度。更多还原

【Abstract】 Determining the thickness of the thermal insulation layer has an important impact on the economic benefits and emission reduction effect of biogas fermentation tanks in cold regions. The heat loss model of the biogas fermentation tank was established, and the numerical simulation results obtained by COMSOL Multiphysics were verified by field measurements. The maximum relative error was 5.59%, which met the engineering accuracy requirements. The optimization model of the insulation layer thickness of the biogas fermentation tank was established, considering the life cycle cost, energy-saving rate, and carbon emissions.Taking the Xuzhou biogas project in a cold area as an example, the insulation layer thicknesses of two insulation materials for two insulation schemes were obtained.更多还原