Abstract

Experimentally obtained ranges of decreasing of temperature of combustion products after pulsed injection of an aerosol consisting of fine water droplets and time intervals with reduced (as compared to the initial) temperature of gases are presented. Fast-response thermocouples and panoramic optical methods of tracer visualization are applied. To ensure the possibility of using the experimental results in a large group of gas-vapor-droplet applications, the experiments are performed with variations of the basic parameters of the examined process of water aerosol mixing with the opposing flow of heated gases: initial temperature and velocity of the gas flow, droplet size, initial temperature and velocity of water aerosol injection, number and duration of pulsed injection events. The results are generalized to be used in gas-vapor-droplet technologies of fire fighting and high-temperature water purification based on evaporation of various impurities.

中文翻译：

---

流经高温气体的水滴随时间离散流动的尾流中温度下降的持续时间

摘要

给出了在脉冲注入由细小水滴组成的气溶胶后，燃烧产物温度降低的实验范围，以及降低了（与初始温度相比）气体温度的时间间隔。应用了快速响应的热电偶和示踪剂可视化的全景光学方法。为确保有可能在大量的气体-蒸汽-液滴应用中使用实验结果，在进行实验时会改变水雾混合过程的基本参数，以及相反的加热气体流量：初始温度和气体流速，液滴大小，初始温度和水雾剂注入速度，脉冲注入事件的数量和持续时间。