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优化蒸汽炉用于土壤蒸汽消毒:结构设计,CFD模拟和现场应用
1College of Transportation Engineering, Nanjing Vocational University of Industry Technology, Nanjing, Jiangsu, China.
PloS one
|December 26, 2025
概括
一个新的汽油动力蒸汽炉为设施农业提供了一个移动的,无化学品的解决方案,有效控制土壤病原体. 这种创新系统提高了热效率和土壤消毒,以实现可持续的农业实践.
科学领域:
- 农业工程 农业工程
- 热流体系统 热流体系统
- 可持续农业 可持续农业
背景情况:
- 土壤传播的病原体和连续作物阻碍了设施农业.
- 现有的蒸汽消毒系统是不移动和低效的.
- 由于缺乏移动蒸汽生成,限制了无化学物质的土壤病原体控制.
研究的目的:
- 开发一台移动和高效的汽油动力蒸汽炉,用于农业设施.
- 优化赫尔姆霍尔茨型脉冲燃烧系统的紧性和热效率.
- 验证系统在土壤蒸汽消毒中的有效性.
主要方法:
- 设计和优化了一台采用赫尔姆霍尔茨型脉冲燃烧系统的汽油动力蒸汽炉.
- 利用计算流体动力学 (CFD) 来优化燃烧器布局.
- 使用双层蒸汽注入针进行现场验证,以改善热保持.
主要成果:
- 实现了炉长度减少67.11%,传热面积增加204%.
- 优化的燃烧器配置减少了15.52秒的热水时间.
- 在63.84分钟内保持土壤温度≥80°C,将热保留时间延长了27.02%.
结论:
- 开发的汽油动力蒸汽炉为土壤蒸汽消毒提供了一个实用的移动解决方案.
- 该系统有效地为土壤病原体提供致命的热剂量,解决了持续作物的问题.
- 进步了对农业应用高效的热流体系统设计的基本见解.
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