Share

IIR document

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.

Available documents

Format PDF

Pages: 359-367

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

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


See other articles from the proceedings (122)
See the conference proceedings

Indexing