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ISPRS Int. J. Geo-Inf. 2016, 5(12), 219;

Geospatial Analysis of the Building Heat Demand and Distribution Losses in a District Heating Network

Institute of Geography–GIScience, Heidelberg University, Im Neuenheimer Feld 368, Heidelberg 69120, Germany
Department of Geoinformatics–Z_GIS, University of Salzburg, Schillerstrasse 30, Salzburg 502, Austria
Center for Geographic Analysis, Harvard University, Cambridge, MA 02138, USA
geomer GmbH, Im Breitspiel 11b, Heidelberg 69126, Germany
Clustermanager GeoNet.MRN, P7 20-21, Mannheim 68161, Germany
Author to whom correspondence should be addressed.
Academic Editor: Wolfgang Kainz
Received: 6 October 2016 / Revised: 11 November 2016 / Accepted: 16 November 2016 / Published: 24 November 2016
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The district heating (DH) demand of various systems has been simulated in several studies. Most studies focus on the temporal aspects rather than the spatial component. In this study, the DH demand for a medium-sized DH network in a city in southern Germany is simulated and analyzed in a spatially explicit approach. Initially, buildings are geo-located and attributes obtained from various sources including building type, ground area, and number of stories are merged. Thereafter, the annual primary energy demand for heating and domestic hot water is calculated for individual buildings. Subsequently, the energy demand is aggregated on the segment level of an existing DH network and the water flow is routed through the system. The simulation results show that the distribution losses are overall the highest at the end segments (given in percentage terms). However, centrally located pipes with a low throughflow are also simulated to have high losses. The spatial analyses are not only useful when addressing the current demand. Based on a scenario taking into account the refurbishment of buildings and a decentralization of energy production, the future demand was also addressed. Due to lower demand, the distribution losses given in percentage increase under such conditions. View Full-Text
Keywords: GIScience; network analyses; renewable energy GIScience; network analyses; renewable energy

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Törnros, T.; Resch, B.; Rupp, M.; Gündra, H. Geospatial Analysis of the Building Heat Demand and Distribution Losses in a District Heating Network. ISPRS Int. J. Geo-Inf. 2016, 5, 219.

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