本文实验研究了在外界辐射下沙床中的乙醇燃料的燃烧特性,考察了不同辐射量以及沙床粒径的影响.结果表明外界热辐射加速了沙床内乙醇燃料的蒸发,燃烧的强度增强,蒸汽区宽度增加,燃料消耗速率和总燃料消耗量增大.同时燃烧过程中随着沙床粒径的增大,气液共存区宽度变小,燃烧持续时间及总燃料消耗量增大.这些燃烧特性为清除污染以及灭火提供了科学依据.
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