Emulsion droplet micro-explosion: Analysis of two experimental approaches

Combustion of water in oil l-emulsions is still considered as a useful technology for the energy conversionof waste oil. One of the most relevant advantages is related to the phenomenon of micro-explosion(l-e) that produces the secondary atomization of the oil. Several experimental approaches have beenproposed in the last years with the aim to characterize the l-e effect under different conditions. In thispaper, an experimental comparison between the two useful approaches is presented. The resultsobtained with the technique of the Suspended droplet will be related to data present in the literature,obtained through the Leidenfrost technique. Quantitative thermal results such as the l-e temperatureand the fall temperature after l-e show the most important differences. The important role played bythe separation process as coalescence and creaming in both approaches is also discussed.