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@ARTICLE{Bau:864788,
      author       = {Bau, Uwe and Baumgärtner, Nils and Seiler, Jan and
                      Lanzerath, Franz and Kirches, Christian and Bardow, André},
      title        = {{O}ptimal operation of adsorption chillers: {F}irst
                      implementation and experimental evaluation of a nonlinear
                      model-predictive-control strategy},
      journal      = {Applied thermal engineering},
      volume       = {149},
      issn         = {1359-4311},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2019-04445},
      pages        = {1503 - 1521},
      year         = {2019},
      abstract     = {The control strategy strongly influences the performance of
                      adsorption chillers: efficiency and power density depend on
                      phase times for adsorption and desorption. The optimal phase
                      times depend on system characteristics, inlet conditions,
                      and user’s preferences regarding the trade-off between
                      efficiency and power density. In principle, these optimal
                      phase times can be determined during operation using
                      nonlinear model predictive control (NMPC), but
                      implementation is complex and, therefore, still missing. In
                      this paper, we propose and implement a NMPC strategy at an
                      adsorption-chiller test stand and experimentally evaluate
                      the performance. The NMPC strategy combines a nonlinear
                      process model, state estimation, phase time optimisation,
                      and prediction of future inlet conditions. The NMPC is
                      experimentally tested for two scenarios: (1) a step in
                      desorption inlet temperature and (2) a typical solar-cooling
                      application. Comparison with a typical state-based control
                      shows that NMPC can increase the specific cooling power by
                      $31.1\%$},
      cin          = {IEK-10},
      ddc          = {690},
      cid          = {I:(DE-Juel1)IEK-10-20170217},
      pnm          = {153 - Assessment of Energy Systems – Addressing Issues of
                      Energy Efficiency and Energy Security (POF3-153)},
      pid          = {G:(DE-HGF)POF3-153},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000460492300132},
      doi          = {10.1016/j.applthermaleng.2018.07.078},
      url          = {https://juser.fz-juelich.de/record/864788},
}