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Online model of wellness value for terminal difference of high-pressure heater targeting status diagnosis

Author

Listed:
  • Wang, Yanhong
  • Zou, Zhihong
  • Zhao, Yuren
  • Li, Qi
  • Zhang, Zhenbin

Abstract

Generally, health level of high pressure heater (HPH) for coal fired unit (CFU) can be diagnosed with wellness value of terminal temperature difference (TTD, upper end difference) compared with site measured value. However, TTD wellness value for HPH is tremendously involved by CFU boundary parameters. Simultaneously influencing mechanism is extremely complex. Such factor has been proven to make it laborious to accurately determine TTD wellness value in real-time during operation. Regretfully, up to now, a deficiency of theoretical methods for TTD wellness value on influence of unit boundary conditions is still subsistent. Under helplessness, TTD design value of HPH is roughly recognized as an imaginary wellness value for operators. Unfortunately, such ludicrous manipulating has brought stupendous errors to diagnosis of HPH faults.

Suggested Citation

  • Wang, Yanhong & Zou, Zhihong & Zhao, Yuren & Li, Qi & Zhang, Zhenbin, 2024. "Online model of wellness value for terminal difference of high-pressure heater targeting status diagnosis," Energy, Elsevier, vol. 304(C).
    • Handle: RePEc:eee:energy:v:304:y:2024:i:c:s0360544224018176
    DOI: 10.1016/j.energy.2024.132043
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    References listed on IDEAS

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