Scholarlink

<p>Accurate biogas flow monitoring is crucial for efficiently operating biogas plants and distributing biogas. However, biogas projects often employ natural gas metering equipment, which has large measurement errors in normal situations due to differences in raw biogas quality and flow compared to natural gas. To develop improved monitoring methods, the features of raw biogas flow, the source of inaccuracy, and the performance of current monitoring technologies are analyzed. The results suggest that excessive moisture content and considerable changes in biogas flow rate are the main causes of measurement errors. Ultrasonic flowmeters are not appropriate for measuring raw biogas with high moisture content; a maximum inaccuracy of 104% has been found in real applications. Roots flowmeters can increase measurement accuracy once biogas has been dehydrated below the dew point. The roots flowmeter has a measuring error of -16.6% when the biogas flow rate is less than 2.02&#xa0;m³/h due to significant flow fluctuations. In that circumstance, the membrane flowmeter is the preferred choice.</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

Identifying the Improved Approaches to Monitor Raw Biogas Flow

  • 期刊论文

  • 发表日期：

    2025年2月25日

查看全文
  • Yaoguo Zuo,
  • Tao Luo,
  • Jianjun Zhang,
  • Yanna Gao,
  • Xi Meng,
  • Zheng Feng,
  • Yi Liu,
  • Gongyi Li,
  • Wenan Lai,
  • Xueli Tian,
  • Nengmin Zhu

摘要

Accurate biogas flow monitoring is crucial for efficiently operating biogas plants and distributing biogas. However, biogas projects often employ natural gas metering equipment, which has large measurement errors in normal situations due to differences in raw biogas quality and flow compared to natural gas. To develop improved monitoring methods, the features of raw biogas flow, the source of inaccuracy, and the performance of current monitoring technologies are analyzed. The results suggest that excessive moisture content and considerable changes in biogas flow rate are the main causes of measurement errors. Ultrasonic flowmeters are not appropriate for measuring raw biogas with high moisture content; a maximum inaccuracy of 104% has been found in real applications. Roots flowmeters can increase measurement accuracy once biogas has been dehydrated below the dew point. The roots flowmeter has a measuring error of -16.6% when the biogas flow rate is less than 2.02 m³/h due to significant flow fluctuations. In that circumstance, the membrane flowmeter is the preferred choice.