کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11031039 | 1646086 | 2018 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nowcasting, predictive control, and feedback control for temperature regulation in a novel hybrid solar-electric reactor for continuous solar-thermal chemical processing
ترجمه فارسی عنوان
در حال حاضر، کنترل پیش بینی و کنترل بازخورد برای تنظیم دما در راکتور هیبرید خورشیدی جدید برای پردازش شیمیایی مداوم خورشیدی-حرارتی
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کلمات کلیدی
خورشیدی حرارتی، قدرت خورشیدی متمرکز، کنترل پیش بینی مدل،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
A novel 15â¯kW reactor for the hybridization of concentrated solar and conventional electric heat was fabricated for renewable and continuous chemical processing at temperatures up to 1700â¯Â°C. Solar-electric controllers based on feedback or predictive linear models were used to regulate the device at 925â¯Â°C for the production of syngas via the gasification of carbon. The system was challenged with cloud transients programmed on a 45â¯kW high-flux solar simulator that approximated weather observed in the San Luis Valley (Colorado, USA). In experiment it was found that model predictive control with a 1â¯min ahead nowcast of incipient clouding best regulated solar-electric reactor temperatures, potentially averting thermal fatigue. Upon clouding, model predictive control with a nowcast yielded temperature disturbances of ±10â¯Â°C, whereas feedback control alone featured ±25â¯Â°C excursions. Overall, the performance of model predictive control with a nowcast was 75% better than feedback as indicated by the integral squared error of temperature excursion residuals. The importance of nowcast accuracy was explored, and although the model-based controller was robust to forecast amplitude inaccuracy, temporal forecast inaccuracy wholly negated the benefits of predictive control.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy - Volume 174, 1 November 2018, Pages 474-488
Journal: Solar Energy - Volume 174, 1 November 2018, Pages 474-488
نویسندگان
Scott C. Rowe, Illias Hischier, Aaron W. Palumbo, Boris A. Chubukov, Mark A. Wallace, Rachel Viger, Allan Lewandowski, David E. Clough, Alan W. Weimer,