Energy Technology &
Control, manufacturer of
electronic Burner
Management Systems, has expanded
its range of combustion controllers to
allow waste and bio-fuels to be fired
either independently or
simultaneously with a conventional
gaseous or liquid base fuel.

Simultaneous firing of fuels can
usually be achieved using
conventional
products but
waste and biofuels
are often
characterised
by variable
availability and
inconsistent calorific
values. To overcome this an
algorithm within the controller
software enables safe and efficient
combustion to be achieved; an
external signal is used to indicate the
proportion of waste fuel that should
be used across the firing range. Oxygen
trim ensures any variability in either
the fuel calorific value or external
atmospheric conditions does not
compromise
combustion
efficiency.

The
ETC6008
caters for
liquid and
gaseous fuels to be fired
independently or simultaneously. A
new model, ETC6009, is designed to
allow a gaseous base fuel to be mixed
with a gaseous bio or waste fuel and
includes the provision for valve
proving on two separate gas trains.