Scholarlink

<p>Carbon soot particles deposit on the outer surfaces of economizer tubes, inhibiting heat transfer to water and reducing thermal efficiency. While offline cleaning methods require costly shutdowns, online techniques optimize heat transfer through continuous cleaning, thereby reducing downtime and associated costs. The main goal of the present study is to assess the improvement in heat transfer achieved by two online experimental soot-cleaning methods: a sonic horn and a supersonic air nozzle. The experimental results showed that the sonic horn provides 22% and 23.6% enhancements in heat transfer across different sets of readings. The supersonic air nozzle, however, provides higher heat-transfer enhancements of 27.4% and 30.6%. Both methods are successful at removing soot, though they differ in the area cleaned and their intensity, as observed in the experiments. Even in hard-to-reach places, the high-energy, low-frequency sound waves deliver consistent cleaning performance. In contrast, the supersonic air nozzle provides concentrated cleaning only in the region where the high-velocity jet can reach. The sonic horn cleaning method removes deposits primarily through acoustic pressure fluctuations, whereas air jet cleaning relies on high-velocity gas flow to dislodge particles.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Experimental evaluation on the influence of soot removal with novel sonic horn and supersonic air nozzle on heat transfer performance of boiler economizer

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月20日

查看全文
  • Tushar Damle,
  • Harshad Deshpande,
  • Sameer Bhosale,
  • Abhishek Sharma,
  • Alemu Workie Kebede,
  • Himadri Majumder

摘要

Carbon soot particles deposit on the outer surfaces of economizer tubes, inhibiting heat transfer to water and reducing thermal efficiency. While offline cleaning methods require costly shutdowns, online techniques optimize heat transfer through continuous cleaning, thereby reducing downtime and associated costs. The main goal of the present study is to assess the improvement in heat transfer achieved by two online experimental soot-cleaning methods: a sonic horn and a supersonic air nozzle. The experimental results showed that the sonic horn provides 22% and 23.6% enhancements in heat transfer across different sets of readings. The supersonic air nozzle, however, provides higher heat-transfer enhancements of 27.4% and 30.6%. Both methods are successful at removing soot, though they differ in the area cleaned and their intensity, as observed in the experiments. Even in hard-to-reach places, the high-energy, low-frequency sound waves deliver consistent cleaning performance. In contrast, the supersonic air nozzle provides concentrated cleaning only in the region where the high-velocity jet can reach. The sonic horn cleaning method removes deposits primarily through acoustic pressure fluctuations, whereas air jet cleaning relies on high-velocity gas flow to dislodge particles.