Analyzing the performance and control of a hydronic pavement system in a district heating network
2019 (English)In: Energies, E-ISSN 1996-1073, Vol. 12, no 11, article id 2078Article in journal (Refereed) Published
Abstract [en]
A hydronic pavement system (HPS) is an alternative method to clear snow and ice, which avoids the use of salt, sand, and fossil fuel in conventional snow clearance, and minimizes the risk of accidents. The aim is to analyze the performance of different control strategies for a 35,000 m2 HPS utilizing heat from a district heating and cooling (DHC) system. The key performance indicators are (1) energy performance of the HPS, and (2) primary energy use, (3) electricity production and (4) greenhouse gas (GHG) emissions from the DHC system. The methodology uses a simulation model of the HPS and an optimization model of the DHC system. Three operational strategies are analyzed: A reference scenario based on the current control strategy, and scenarios where the HPS is shut down at temperatures below −10 ◦C and −5 ◦C. The study shows that the DHC return temperature is suitable for use. By operational strategies, use during peak demand in the DHC system can be avoided, resulting in reduced use of fossil fuel. Moreover, the energy use of the HPS could be reduced by 10% and the local GHG emissions by 25%. The study emphasizes that the HPS may have positive effects on global GHG emissions, as it enables electricity production from renewable resources.
Place, publisher, year, edition, pages
MDPI, 2019. Vol. 12, no 11, article id 2078
Keywords [en]
District heating, Energy system modeling, Greenhouse gas emissions, Hydronic pavement system, Primary energy use, Benchmarking, Electric power generation, Fossil fuels, Gas emissions, Pavements, Snow, Current control strategy, District heating and cooling systems, District heating networks, Electricity production, Energy system model, Key performance indicators, Pavement systems, Greenhouse gases
National Category
Energy Systems
Research subject
Sustainable Urban Development
Identifiers
URN: urn:nbn:se:hig:diva-30549DOI: 10.3390/en12112078ISI: 000472635900045Scopus ID: 2-s2.0-85066765422OAI: oai:DiVA.org:hig-30549DiVA, id: diva2:1344992
Funder
Swedish Agency for Economic and Regional Growth2019-08-222019-08-222023-08-28Bibliographically approved