Optimised Performance of Energy Supply Systems with Exergy Principles - LowEx Communities
Fraunhofer Institute for Building Physics (IBP) Department Energy Systems
Anna Kallert Tekn. Dr. Dietrich Schmidt
Auf Wissen bauen
© Fraunhofer IBP
Innovative city and urban concepts How will the development of city systems looks like in future?
Intelligent electrity grids
Climate oriented city development
Renewable energymix
Plus-energy-buildings/ communities Smart Mobility & E-mobility
Smart Infrastructures & supply systems
Communities as energy systems Sustainable community energy systems
Building systems
Supply systems
The LowEx approach for communities
Application of LowEx approach for optimization of community demand adapted supply. The very efficient so called low exergy supply and use are of particular interest (see green boxes).
Scope Improvement of energy conversion chains on a community level • Significant reduction of energy demand and GHG-emissions • Integration of renewable heat and cold sources
Objectives • The focus is on technologies and innovative concepts using low valued energy sources (LowEx) and renewable energies for the heating and cooling of neighborhoods and cities. • The objective is to demonstrate the potential of low exergy thinking on a community level as energy and cost efficient solution in achieving 100% renewable and GHG emission-free energy systems. This includes: • Storage concepts • Networks / grids • Control systems und strategies • Business concepts
System integration!
Waste heat utilization and cascading via synergies ...only possible with smart management systems
Supermarket
Residential Living
Ice rink
Swimming pool
Source: REAP Project, TU Delft
Community case study in Heerlen (NL) - LowEx approach for the Mine Water Project
demand distribution
LT DH&C 3-pipes system
supply
Minewater Additional RES biomass, solar
Integral system approach for the total built environment
Buildings suitable for use of low valued energy (LTH and HTC)
Level of aggregation
Level of detail
Assessment methodology
Expected outcome • Design guidelines for optimised low exergy systems on community scale • Technology solutions and new development approaches for smart distribution solutions • Case study evaluation and best-practice catalogue
• Exergy evaluation on community scale Our target groups: • Energy supply and technology industry, • Project developer and housing companies, • Decision makers within communities, • Academia, research and education
1st Working Phase Meeting at NEA
August 26th, 2014
Reykjavik, Iceland
17 participants from 7 EBC countries (AT, CH, DE, DK, NL, SE, USA)
Tekn. Dr. Dietrich Schmidt Head of Department Energy Systems
Fraunhofer Institute for Building Physics Tel: +49 (0)561 804-1871
[email protected] www.ibp.fraunhofer.de www.iea-ebc.org/ www.annex64.org
…research and solutions for a sustainable world
