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Optimal cyclic operation of two-bed adsorption chillers with mass recovery.
Author(s) : GRÄBER M., KIRCHES C., SCHLÖDER J., et al.
Summary
Adsorption refrigeration systems are discontinuously operated processes. The main control inputs are the duration of each operational stage. Compared to conventional system layouts the mass recovery schemes introduce an additional operational stage, during which both adsorbers are directly connected and exchange refrigerant vapour. The duration of each stage strongly affects the cooling power. The optimal stage durations however strongly depends on operating conditions such as ambient air temperature, available heat source temperature, desired target cooling temperature, and achievable volume flow rates of the secondary heat transfer circuits. In this contribution, the authors apply a direct method for periodic optimal control to optimize twobed adsorption chillers with mass recovery. The proposed method is based on a dynamic first principle model of the system and a multiple shooting optimization algorithm. The fast and reliable solution of the optimal control problem allows for extensive parameter studies as well as for an extension to nonlinear model predictive control of adsorption chillers.
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Pages: 359-367
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Details
- Original title: Optimal cyclic operation of two-bed adsorption chillers with mass recovery.
- Record ID : 30001224
- Languages: English
- Source: Sources/sinks Alternative to the Outside Air for Heat Pump and Air-conditioning Techniques (Alternative Sources - AS), Padua, Italy, April 5-7, 2011. / International Sorption Heat Pump Conference (ISHPC11), Padua, Italy, April 6-8, 2011.
- Publication date: 2011/04/06
Links
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Indexing
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Themes:
Chillers;
Absorption and adsorption systems - Keywords: Operation; Chiller; Recovery; Adsorption system; Optimization; Modelling
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Influence of temperature fluctuations on the op...
- Author(s) : SCHICKTANZ M.
- Date : 2011/04/06
- Languages : English
- Source: Sources/sinks Alternative to the Outside Air for Heat Pump and Air-conditioning Techniques (Alternative Sources - AS), Padua, Italy, April 5-7, 2011. / International Sorption Heat Pump Conference (ISHPC11), Padua, Italy, April 6-8, 2011.
- Formats : PDF
View record
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A four-bed regenerative adsorption chiller design.
- Author(s) : CHUA H. T., NG K. C., MALEK A., et al.
- Date : 1999/03/24
- Languages : English
- Source: Proceedings of the International Sorption Heat Pump Conference.
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Prototype testing of a novel four-bed regenerat...
- Author(s) : NG K. C., CHUA H. T., WANG X. L., et al.
- Date : 2003/08/17
- Languages : English
- Source: 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
- Formats : PDF
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Dynamic modelling of a liquid absorption system.
- Author(s) : WILLERS E., GROLL M., KULICK C., et al.
- Date : 1999/03/24
- Languages : English
- Source: Proceedings of the International Sorption Heat Pump Conference.
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Amélioration de la performance d'une machine fr...
- Author(s) : CHEKIROU W., BOUKHEIT N., KARAALI A.
- Date : 2012/09/10
- Languages : French
- Source: 4th Jordanian IIR International Conference on Refrigeration and Air Conditioning. Proceedings: Amman, Jordan, September 10-12, 2012.
- Formats : PDF
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