کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
644535 1457124 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On-line fouling monitoring model of condenser in coal-fired power plants
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
On-line fouling monitoring model of condenser in coal-fired power plants
چکیده انگلیسی


• A comprehensive approach to monitor the fouling of the condenser is presented.
• An all-condition mechanism model of coal-fired power plants is proposed.
• A correction of the condensation heat transfer resistance in the steam side.
• On-line fouling monitoring of the condenser is realized in the field.

The fouling of water side surfaces decreases the thermal effectiveness of the condenser and it is always one of operational focuses in coal-fired power plants. This study presents a comprehensive approach to realize the on-line fouling monitoring for the condenser in thermal power plants. Based on the operational mechanism and the coupling property, an all-condition mechanism model (ACMM) of coal-fired power plants is proposed to simulate coupling operating characters of systems. The simulation results of a 600 MW/16.7 MPa/560 °C/560 °C supercritical coal-fired power plant indicate that the model is of sufficient accuracy for performance calculations under different off-design conditions. An on-line fouling model of the condenser is presented according to simulation results of ACMM and on-line monitoring parameters from SIS system. For the fouling model, a correction as a function of the non-condensable gas is implemented to improve the accuracy of the condensation heat transfer resistance in the steam side of the condenser. The results of the on-line fouling monitoring in the field reveal that the fouling of the condenser increased with time and the fouling growth rates kept relative stable. Furthermore, this study also provided an alarm for the leakage fault in the condenser according to the abnormal fouling resistance tend.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 104, 5 July 2016, Pages 628–635
نویسندگان
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