Engineering district heating networks

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Sustainable Building. Services. Project suitability. • 1MWh/a for 1m of district heating (biomass). • 'Typical' naturally ventilated office: 141kWh/m2 for heating and ...
Sustainable Building Services

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

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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

• ‘Good practice’: 72kWh/m2 – Example: 300m2 => 22m

Sustainable Building Services

Project suitability • Domestic – Typical small dwelling: 15MWh/a => 15m – Good practice small dwelling:

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