New data about explosion regions with special focus on limiting oxygen concentrations for methyl propionate, methyl acetate, dimethyl carbonate with air in the presence of nitrogen, helium and carbon dioxide were determined at ambient initial pressure and 423 K. The measurements were executed according to EN 1839 method T. The changes of the explosion regions with temperature and type of inert gas were also modeled mathematically using an extended calculated adiabatic flame temperature profile (CAFTP) method. The shift of the explosion region boundaries with temperature when switching from nitrogen to carbon dioxide were reproduced well. For a switch to helium a good agreement could be reached only if the very high thermal conductivity of helium had been considered properly by using the Lewis number. This requires the knowledge of the respective Lennard-Jones parameters. The LOC of helium-containing mixtures can, however, be calculated with acceptable accuracy even if the Lennard-Jones parameters of the flammable substance are not known exactly by using reasonable estimations.

在环境初始压力和423 K下，确定了在氮气，氦气和二氧化碳存在下，空气中限制丙酸甲酯，乙酸甲酯，碳酸二甲酯中氧气浓度的爆炸区域新数据，该测量根据EN进行。 1839年的方法T。爆炸区域随温度和惰性气体类型的变化也使用扩展的绝热火焰温度曲线（CAFTP）方法进行了数学建模。从氮气转换为二氧化碳时，爆炸区域边界随温度的变化得到了很好的再现。对于改用氦气，只有通过使用Lewis数适当考虑了氦的很高的热导率，才能达成良好的协议。这需要了解各自的Lennard-Jones参数。但是，即使通过合理的估算不能确切知道易燃物质的Lennard-Jones参数，也可以以可接受的精度计算出含氦混合物的LOC。