Engineering district heating networks: a systems approach Dr. Jutta Chisnall Dr. Hansjörg Vollmer
Sustainable Building Services
Engineering district heating networks “Engineering is the discipline, art and profession of acquiring and applying technical, scientific and mathematical knowledge to design and implement materials, structures, machines, devices, systems, and processes that safely realize a desired objective or inventions.” (Wikipedia) (...and don’t forget people!)
Sustainable Building Services
Engineering district heating networks • • • •
Company introduction General considerations Some detail Summary
Sustainable Building Services
Company introduction
Sustainable Building Services
Vollmer Engineering Ingenieurbüro Dr. Vollmer
PER s.a.r.l.
(Consultancy, since 1994)
(Consultancy, since 2006)
WTS GmbH & Co KG (ESCo, since 1997)
Vollmer Engineering Ltd. (Consultancy, since 2007)
Sustainable Building Services
Vollmer Engineering • • • • •
HVAC Use of resources Energy efficiency Over 30 biomass district heating projects ‘Renewable’ technologies (biomass, GSHP/ASHP, solar,...) as well as conventional
Sustainable Building Services
Examples
Sustainable Building Services
Examples
Sustainable Building Services
Examples
Sustainable Building Services
General considerations
Sustainable Building Services
Project suitability • 1MWh/a for 1m of district heating (biomass) • ‘Typical’ naturally ventilated office: 141kWh/m2 for heating and hot water – Example: 300m2 => 42m