Experimental Study of District Heating Substations in a Hardware-in-the-Loop Test Rig

Anna Vannahme (), Jonas Busch, Mathias Ehrenwirth and Tobias Schrag
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Anna Vannahme: Institute of New Energy Systems, University of Applied Science Ingolstadt, Esplanade 10, 85049 Ingolstadt, Germany
Jonas Busch: Institute of New Energy Systems, University of Applied Science Ingolstadt, Esplanade 10, 85049 Ingolstadt, Germany
Mathias Ehrenwirth: Institute of New Energy Systems, University of Applied Science Ingolstadt, Esplanade 10, 85049 Ingolstadt, Germany
Tobias Schrag: Institute of New Energy Systems, University of Applied Science Ingolstadt, Esplanade 10, 85049 Ingolstadt, Germany

Resources, 2023, vol. 12, issue 4, 1-13

Abstract: This study compares two district heating substation systems for implementation in rural district heating networks with non-retrofitted single- and two-family houses. The aim is to determine which system has the potential to provide lower return temperatures and/or lower power peak demand. A hardware-in-the-loop-test rig was utilized to measure the two district heating substations under real operation conditions. This experimental study demonstrates that load balancing of the district heating network is attainable with the district heating substation with storage. This is especially advantageous when there is a high demand for domestic hot water. Overall, both systems yield comparable return temperatures.

Keywords: district heating substation; local district heating network; non-retrofitted single- and two-family-houses; thermal hardware-in-the-loop test rig (search for similar items in EconPapers)
JEL-codes: Q1 Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2023
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