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Comparison of a usual heat-transfer-station with a hydraulic modified version under the aspect of exergy saving

Anna Vannahme
Institute of new Energy Systems, University of Applied Sciences Ingolstadt, Germany

Tobias Ramm
Institute of new Energy Systems, University of Applied Sciences Ingolstadt, Germany

Mathias Ehrenwirth
Institute of new Energy Systems, University of Applied Sciences Ingolstadt, Germany

Tobias Schrag
Institute of new Energy Systems, University of Applied Sciences Ingolstadt, Germany

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp19157647

Ingår i: Proceedings of the 13th International Modelica Conference, Regensburg, Germany, March 4–6, 2019

Linköping Electronic Conference Proceedings 157:66, s. 8

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Publicerad: 2019-02-01

ISBN: 978-91-7685-122-7

ISSN: 1650-3686 (tryckt), 1650-3740 (online)

Abstract

In this paper, a modeling approach for comparing two heat-transfer-stations (HTS) is presented. By comparing a usual HTS with a modified HTS, where the return temperature on primary side of the district heating network (DHN) is used for heating the domestic warm water (DWW), it can be shown that utilizing the return flow of the heating positively contributes to a reduction of temperatures within a DHN and in this way saves exergy. The simulation model is implemented in Modelica.

Nyckelord

heat-transfer-station, hydraulic system, control design, district heating, single-family house

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