Best Practice Pengg - GBEfactory

CURRENT ENERGY FLOW
Total energy consumption of 45,35 MWh/a
• 26% Electricity
• 74% Natural Gas
What is Electricity used for:
• 58% are used for mechanical energy to
operate the manufacturing lines
• 32% are used for process heat
• 6% are used for lightning
• 4% are used for pressurized air
What is Natural Gas used for?
• 60% are used for direct process heat in
the tempering process
• 29% are used for the production of hot
water process heat and to heat
production buildings
• 5% to operate the gas radiators
• 3% for heating offices and hot water
production
• 3% for auxiliary power and the exomat.
ENERGY CONVERSION
EFFICIENCY
During all the high energy productions steps new
concept of using waste heat were established.
To increase the use of renewable energy it was
suggested to replace the natural gas boiler by a
biomass fired boiler for the production of the
hot water process heat thus reducing the use of
natural gas by additional 9,9 MWh/a.
In addition production waste may be incinerated
in the boiler. The increased use of hydro
electricity is not recommended for economic
reasons.
ENERGY REDUCTION
POTENTIAL
The analysis of the energy conversion processes
identified measures leading to a reduction of
5,70 Mio kWh/a of natural gas and 1,13 Mio
kWh/a of electricity.
The biggest potential is seen in the use of waste
heat of the gas burners heating the wire at the
beginning of the tempering process for
supplying heat to the subsequent process steps
in an energy cascade.
Quellen: Bayer, H., Angerer, E., Enzinger, P., et.all, 2003: Abwärmenutzung und Einsatz Erneuerbarer
Energieträger in einem metallverarbeitetnden Betrieb, von http://www.fabrikderzukunft.at/results.html/id1845?active=
Sowie: http://www.wire-pengg.com/kontakt_ag_e.html