Evaluation of the temperature regimes of multi-level thermal networks in urban areas through exergy analysis. (September 2017)

• Record Type: Journal Article
• Authors: Saeb Gilani, Bahar; Bachmann, Max; Kriegel, Martin
• Is Part Of: Energy procedia. Volume 122(2017)
• Page Start: 385
• Page End: 390
• Publication Date: 2017-09
• Subjects: Multi-level thermal network -- Exergy analysis -- Low-Temperature district heating; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2017.07.424
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: The overall objective of this study is to explore the potentials of district heating systems (DHS) operating on more than two high temperature levels. This characteristic allows integrating decentralized and renewable thermal energy sources. It also enables the network to minimize inefficiencies caused by mismatches between supply and demand exergy levels. This paper studies the effects of better suited exergy levels for DHS with two, three and four supply temperature levels. It is shown that having more than two temperature levels is in many cases advantageous both exergetically and economically.