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@PHDTHESIS{Lampe:572530,
      author       = {Lampe, Matthias},
      othercontributors = {Bardow, André and Gross, Joachim},
      title        = {{I}ntegrated design of process and working fluids for
                      organic rankine cycles; 1. {A}uflage},
      volume       = {7},
      school       = {RWTH Aachen University},
      type         = {Dissertation},
      address      = {Aachen},
      publisher    = {Wissenschaftsverlag Mainz GmbH},
      reportid     = {RWTH-2016-02796},
      isbn         = {978-3-95886-086-5},
      series       = {Aachener Beiträge zur technischen Thermodynamik},
      pages        = {XVIII , 122 Seiten : Illustrationen, Diagramme},
      year         = {2016},
      note         = {Auch veröffentlicht auf dem Publikationsserver der RWTH
                      Aachen University; Dissertation, RWTH Aachen University,
                      2015},
      abstract     = {In this thesis, the challenge of an integrated working
                      fluid and process design is tackled. Methods are introduced
                      allowing for the design of ORC and working fluids. As the
                      problem of selecting a fluid for a process is not only
                      relevant for the design of ORC systems, a generic problem
                      formulation for the integrated fluid and process design is
                      derived. Methods for solving the problem are presented and
                      shortcomings in the existing methods are identified. Based
                      on these findings, a method is presented allowing for the
                      integrated design of fluids and processes. The integrated
                      design exploits the underlying perturbed chain statistical
                      associating fluid theory (PC-SAFT) equation of state in a
                      so-called continuous-molecular targeting (CoMT). The PC-SAFT
                      equation is further supplemented with methods to calculate
                      the ideal gas heat capacity and the molar mass of working
                      fluids. The integrated design method is applied to the
                      design of a geothermal ORC system.The basic method for the
                      integrated working fluid and process design is based on the
                      selection of working fluids from a database of known PC-SAFT
                      pure component parameters. However, the method is extended
                      by computer-aided molecular design (CAMD) allowing for the
                      systematic design of novel molecular structures of working
                      fluids. As illustrative example, the geothermal system is
                      revisited and the design of working fluids is performed for
                      this example. Commonly, models of the process used for the
                      working fluid selection are based on the assumption that the
                      turbine efficiency is a constant parameter. To overcome this
                      assumption, a preliminary design model of the turbine is
                      presented enabling to consider the efficiency and key design
                      parameters of the turbine in the selection of working
                      fluids. The results of a case-study for a small-scale solar
                      ORC system show that the turbine design is a relevant
                      parameter for the selection of working fluids and encourage
                      the use of preliminary design models for the turbine in an
                      early stage of the working fluid design. Moreover, the
                      working fluid selection is not only limited to pure
                      components. Similar to the working fluid design of pure
                      components, the consideration of a mixture adds a new degree
                      of freedom to the design problem and allows for the design
                      of more efficient systems. Thus, the method for the working
                      fluid design is extended towards the optimization of working
                      fluid mixtures. The optimization of the zeotropic mixtures
                      is exploited for a comparison between the performance of
                      pure component working fluids and working fluid mixtures.},
      cin          = {412110},
      ddc          = {620},
      cid          = {$I:(DE-82)412110_20140620$},
      typ          = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
      urn          = {urn:nbn:de:hbz:82-rwth-2016-027963},
      url          = {https://publications.rwth-aachen.de/record/572530},
}