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Efficient model-based leak detection in boiler steam-water

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  • Boiler system leak detection - Nalco Chemical Company

    A leak detection method of greater sensitivity is needed, because the early detection of leaks requires detection of an extremely small water loss from a dynamic water system. A leak detection method of great sensitivity must be independent of chemical species that might be present in boiler feedwater in amounts varying with the operation Get Price

  • Xi (Chris) Sun - Sr. Associate Control Engineer - Syncrude

    A model-based least-squares algorithm with a time-varying forgetting factor is developed for leak detection in boiler steam-water systems. The algorithm has been tested using real industrial data from Syncrude Canada, and has proven to be effective in detection of boiler tube or steam leaks; proper implementation of the algorithm would lead to early leak warning, which is important inGet Price

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    Jan 17, 2020 · In the model-based approach to fault detection, models which describe input-output relationships in a boiler working in normal and abnormal (faulty) conditions are built and identified, based on real data . The data recorded from a real plant are then compared with the model outputs (using, e.g., the least-squares algorithm) to detect the leakage.Get Price

  • Boiler Tube | Principal Component Analysis | Fossil Fuel

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  • Boiler system leak detection - Nalco Chemical Company

    A leak detection method of greater sensitivity is needed, because the early detection of leaks requires detection of an extremely small water loss from a dynamic water system. A leak detection method of great sensitivity must be independent of chemical species that might be present in boiler feedwater in amounts varying with the operation Get Price

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    Nov 27, 2020 · Efficient model-based leak detection in boiler steam-water systems journal, November 2002. Sun, Xi; Chen, Tongwen; Marquez, Horacio J. Computers & Chemical Engineering, Vol. 26, Issue 11; DOI: 10.1016/S0098-1354(02)00147-3Get Price

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    A model-based least-squares algorithm with a time-varying forgetting factor is developed for leak detection in boiler steam-water systems. The algorithm has been tested using real industrial data Get Price

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    Nov 07, 2020 · Boiler waterwall tube leakage is the most probable cause of failure in steam power plants (SPPs). The development of an intelligent tube leak detection system can increase the efficiency and reliability of modern power plants. The idea of e-maintenance based on multivariate algorithms was recently introduced for intelligent fault detection and diagnosis in …Get Price

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    Jan 04, 2022 · Boilers can be either steam or hot-water-based. The system heats the water and either sends that hot water or pressurized steam around to radiators. Boilers don't use any forced air, so your home may not feel as dry as it would if you used a furnace for heat, a bonus during the already dry winters. Heat Pump. A heat pump doesn't actually Get Price

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  • Boiler is Leaking Water and How to Fix It | EDF

    Oct 02, 2020 · If water is dripping from one of the pipe joins, dry the area around the join and double-check that the water is coming from it. If so, tighten the fitting a little and see if it stops. For a very small boiler leak repair, you may be able to treat your central heating system with additives that automatically form a seal.Get Price

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    Boiler waterwall tube leakage is the most probable cause of failure in steam power plants (SPPs). The development of an intelligent tube leak detection system can increase the efficiency and reliability of modern power plants. The idea of e-maintenance based on multivariate algorithms was recently i …Get Price

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    In this paper, we propose a leakage detection method for steam boiler tubes in thermal power plant (TPP) using principal component analysis and exponentially weighted moving average (EWMA). To determine the number of principal components, the cumulative percent variance technique is employed, and the Q statistic is used as the detection index.Get Price

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    [3] Sun X., Chen T., Marquez H.J., Boiler Leak Detection Using a System Identification Technique, Industrial & Engineering Chemistry Research, 41 (2002), No. 22, 5447-5454 [4] Jankowska A., Approach to Early Boiler Tube Leak Detection with Artificial Neural Networks.Get Price

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    studies on boiler tube leakage detection. Sun et al. (2002) developed a model-based least-squares algorithm with a time-varying forgetting factor for leak detection in boiler steam-water systems. Afgan et al. (1998) described the development of an expert system for detecting boiler tube leakage based on selected diagnostic variablesGet Price

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