柴油_渣油和沥青的脉动燃烧对比试验研究

在一变形的里克（Rijke)管中进行了柴油、渣油和沥青的脉动燃烧对比试验。试验发现容易燃烧的 燃料容易激起脉动，难燃燃料由于着火推迟，较难激起脉动，而必须加长尾管长度才能解决问题。当进风面积与燃烧腔截面积之比减小到一定程度时，对于渣油等难燃燃料，其脉动特性会向1／4波长管的脉动特性过渡；而对于柴油等易燃燃料，脉动特性不变。 试验表明，这种无阀脉动燃烧技术可使渣油、沥青等难燃物高效清洁地燃烧，这对于渣油等难燃燃料的利用有重要意义。

Contrast Experimental Research on the Pulsating Combustion of Diesel Oil, Residual Oil and Asphalt

Contrast tests of pulsating combustion of diesel oil, residual oil and asphalt were conducted in a shape changing Rijke pipe. It is discovered that easy to burn fuels can excite pulsation easily. By contrast, difficult to burn fuels are hard to excite pulsation owing to the delayed ignition of such fuels and it is necessary to lengthen the tail pipe in order to achieve a good pulsation. When the ratio of air feed area and combustion chamber cross section area is reduced to a certain degree, the pulsation characteristics of such difficult to burn fuels (such as residual oils, etc.) will transit to those of 1/4 wave length pipe. On the other hand, there is no change in pulsation characteristics for easy to burn fuels, such as diesel oils, etc. The tests indicate that valve absent pulsation combustion technology makes it possible to realize clean and highly effective burning of such difficult to burn fuels as residual oils and asphalt, etc. This is of great significance for the utilization of difficult to burn fuels, such as residual oils, etc.