Modeling Aspects of Hazardous Waste Incineration

危险废物焚烧的建模方面

• 批准号: 8715516
• 负责人: William Sirignano
• 金额: $ 21.59万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-03-15 至 1992-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8715516&HistoricalAwards=false
• 关键词: Modeling; Aspects; Hazardous; Waste; Incineration

The destruction of hazardous liquid wastes by means of incineration is a viable technique that requires careful monitoring of emissions and combustion efficiency. Modeling efforts in the past have been limited by the absence of fundamental information on the heat, momentum, and mass transfer mechanisms controlling the heating, vaporization, mixing, and combustion of the liquid-waste sprays encountered in real systems. This research effort concentrates on the fundamental processes governing the energy, mass and momentum exchanges between the liquid- and gas-phases, as well as on the chemical reactions involved in the destruction of hazardous liquid wastes. Two distinct geometries are investigated: one consisting of parallel streams of droplets in a channel flow, and another consisting of a swirl-stabilized centerbody reactor. A number of aspects controlling the efficient destruction of hazardous liquid wastes are examined, such as the effects of droplet size distribution, multi-component (fuel-doped) liquid- waste streams, secondary atomization, reactor geometry, efficient flame propagation, and turbulence, among others. The current lack of information has resulted in overly conservative and economically unattractive designs. The results of this program will be useful in the design of more efficient, safer, and economic liquid-waste incinerators.

采用下列方法销毁危险液体废物： 焚烧是一种可行的技术， 监测排放和燃烧效率。 建模 过去的努力由于缺乏 关于热量、动量和质量的基本信息 控制加热，蒸发， 混合和燃烧的液体废物喷雾遇到的， 真实的系统。 这项研究工作集中在 控制能量、质量和动量的基本过程 液相和气相之间的交换，以及 销毁危险化学品的化学反应 液体废物。 两个不同的几何形状进行了研究：一个 由通道流中的平行液滴流组成，并且 另一个由旋流稳定的中心体反应器组成。 一 控制有效销毁化学武器的若干方面 危险液体废物的影响，如 液滴尺寸分布，多组分（燃料掺杂）液体， 废物流，二次雾化，反应器几何形状，高效 火焰传播和湍流等等。 由于目前缺乏信息， 保守和经济上没有吸引力的设计。 结果 这一方案的设计将是有益的， 更安全，更经济的液体废物焚烧炉。