使用注水的废热回收炉的理论和实验研究
Jaehun Shin1, Taejoon Park1, Hyunseok Cho2
1Department of Mechanical Engineering, Inha University, Republic of Korea.
Heliyon
|September 4, 2023
概括
将水注入废热回收炉 (HR-B/W) 显著提高了热效率并减少了排放. 实践测试证实HR-B/W通过管理水蒸发和热交换来提高炉性能.
科学领域:
- 能源工程 能源工程
- 燃烧科学 燃烧科学
- 环境工程 环境工程
背景情况:
- 废热回收炉 (HR-B/W) 通过热交换提供了理论上的效率提升.
- 将水注入吸入空气可以降低火焰温度,降低NOx排放.
- 注射水的蒸发特性至关重要,但在实际的HR-B/W测试中未得到验证.
研究的目的:
- 实验研究注水对废热回收炉热效率和污染物排放的影响.
- 在实际操作条件下验证HR-B/W系统的理论优势.
- 分析水蒸发在HR-B/W性能中的作用.
主要方法:
- 使用商用24千瓦的冷凝,在满负荷运行.
- 在进气空气流中进行水注入.
- 进行了热力学分析,以确定最佳的水注入速率和跟踪物理特性.
- 执行炉测试以测量热效率和排放 (NOx,CO).
主要成果:
- 水注入将热效率提高了4.4个百分点.
- 通过注水,氧化物排放量减少了69%.
- 与基线运行相比,二氧化碳排放量减少了33%.
- 改善注射水的原子化和蒸发可以进一步增强这些好处.
结论:
- 注水是一种可行的方法,可以提高废热回收炉的效率并减少污染物排放.
- 实际验证证实了HR-B/W系统的潜力,其性能与水蒸发效率相关.
- 进一步优化注水系统可以带来更大的环境和能源效益.
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