@article {30728,
	title = {Dynamic equation-based thermo-hydraulic pipe model for district heating and cooling systems},
	journal = {Energy Conversion and Management},
	volume = {151},
	year = {2017},
	abstract = {<p>Simulation and optimisation of district heating and cooling networks requires efficient and realistic models of the individual network elements in order to correctly represent heat losses or gains, temperature propagation and pressure drops. Due to more recent thermal networks incorporating meshing decentralised heat and cold sources, the system often has to deal with variable temperatures and mass flow rates, with flow reversal occurring more frequently. This paper presents the mathematical derivation and software implementation in Modelica of a thermo-hydraulic model for thermal networks that meets the above requirements and compares it to both experimental data and a commonly used model. Good correspondence between experimental data from a controlled test set-up and simulations using the presented model was found. Compared to measurement data from a real district heating network, the simulation results led to a larger error than in the controlled test set-up, but the general trend is still approximated closely and the model yields results similar to a pipe model from the Modelica Standard Library. However, the presented model simulates 1.7 (for low number of volumes) to 68 (for highly discretized pipes) times faster than a conventional model for a realistic test case. A working implementation of the presented model is made openly available within the IBPSA Modelica Library. The model is robust in the sense that grid size and time step do not need to be adapted to the flow rate, as is the case in finite volume models.</p>},
	doi = {10.1016/j.enconman.2017.08.072},
	author = {Brahm van der Heijde and Marcus Fuchs and Carles Ribas Tugores and Gerald Schweiger and Kevin Sartor and Daniele Basciotti and Dirk Muller and Christoph Nytsch-Geusen and Michael Wetter and Lieve Helsen}
}
@article {226,
	title = {Neue objektorientierte hygrothermische Modell-Bibliothek zur Ermittlung des hygrothermischen und hygienischen Komforts in R{\"a}umen},
	journal = {Bauphysik},
	volume = {31},
	number = {5},
	year = {2009},
	pages = {271-278},
	issn = {0171-5445},
	doi = {10.1002/bapi.200910036},
	author = {Thierry Stephane Nouidui and Klaus Sedlbauer and Christoph Nytsch-Geusen and Kurt Kie{\ss}l}
}
@proceedings {236,
	title = {Geb{\"a}udesimulation mit adaptiven Modellierungsans{\"a}tzen},
	journal = {BAUSIM 2008},
	year = {2008},
	address = {Kassel, Germany},
	author = {Christoph Nytsch-Geusen and Thierry Stephane Nouidui}
}
@proceedings {227,
	title = {Object-oriented hygrothermal building physics library as a tool to predict and to ensure a thermal and hygric indoor comfort in building construction by using a Predicted-Mean-Vote (PMV) control ventilation system},
	journal = {8th Nordic Symposium on Building Physics in the Nordic Countries 2008},
	volume = {2},
	year = {2008},
	pages = {pp.825-832},
	address = {Copenhagen, Denmark},
	abstract = {<p>The indoor temperature and humidity conditions of the building envelope are important parameters for the evaluation of the thermal and hygric indoor comfort. In the research project GENSIM a new hygrothermal building library, based on the object- and equation-oriented model description language Modelica{\textregistered} has been developed by the Fraunhofer Institutes IBP and FIRST. This library includes many models as for instance a hygrothermal wall model, an air volume model, a zone model, a window model and an environment model. Due to the object-oriented modelling approach, some models of this library can be configured to a complex hygrothermal room model, which can predict the time dependent indoor temperature and humidity conditions in a building construction. In this paper we will introduce in a first step the object-oriented hygrothermal room model of this library. In a second step, the validation of the room model with some field experiments will be shown. In a third step we willpresent some simulation results, we obtained by coupling the room model with an implemented Predicted-Mean-Vote (PMV) control ventilation system to predict and to ensure a thermal and hygric indoor comfort in one case study. In the conclusion, the possible range of future applications of this new hygrothermal building physics library and demands for further research are indicated.</p>},
	issn = {978-87-7877-265-7},
	author = {Thierry Stephane Nouidui and Christoph Nytsch-Geusen and Andreas Holm and Klaus Sedlbauer}
}
@proceedings {229,
	title = {Advanced modeling and simulation techniques in MOSILAB: A system development case study},
	journal = {5th International Modelica Conference},
	year = {2006},
	pages = {pp.63-72},
	author = {Christoph Nytsch-Geusen and Thilo Ernst and Peter Schwarz and Mathias Vetter and Andreas Holm and Juergen Leopold and Alexander Mattes and Andre Nordwig and Peter Schneider and Christoph Wittwer and Thierry Stephane Nouidui and Gerhardt Schmidt}
}
@conference {230,
	title = {MOSILAB: Ein Modelica-Simulationswerkzeug zur energetischen Geb{\"a}ude- und Anlagensimulation},
	booktitle = {16. Symposium Thermische Solarenergie},
	year = {2006},
	address = {Bad Staffelstein, Germany},
	isbn = {3-934681-45-X},
	author = {Christoph Nytsch-Geusen and Andre Nordwig and Mathias Vetter and Christoph Wittwer and Thierry Stephane Nouidui and Peter Schneider}
}
@proceedings {228,
	title = {Validierung der eindimensionalen hygrothermischen Wandmodelle der Modelica-Bibliothek "BuildingPhysicsLibrary"},
	journal = {BauSIM 2006},
	year = {2006},
	pages = {pp.144-146},
	address = {Munich, Germany},
	isbn = {978-3-00-019823-6},
	issn = {3-00-019823-7},
	author = {Thierry Stephane Nouidui and Christoph Nytsch-Geusen and Andreas Holm}
}
@conference {231,
	title = {A hygrothermal building model based on the object-oriented modeling language Modelica},
	booktitle = {Ninth International IBPSA Conference},
	year = {2005},
	month = {2005},
	address = {Montreal, Canada},
	isbn = {2-553-01152-0},
	author = {Christoph Nytsch-Geusen and Thierry Stephane Nouidui and Andreas Holm and Wolfram Haupt}
}
@proceedings {232,
	title = {MOSILAB: Development of a modelica based generic simulation tool supporting modal structural dynamics},
	journal = {4th International Modelica Conference},
	year = {2005},
	pages = {pp.527-534},
	address = {Hamburg, Germany},
	author = {Christoph Nytsch-Geusen and Thilo Ernst and Peter Schneider and Mathias Vetter and Andreas Holm and Juergen Leopold and Ullrich Doll and Andre Nordwig and Peter Schwarz and Christoph Wittwer and Thierry Stephane Nouidui and Gerhardt Schmidt and Alexander Mattes}
}
