Standard ENERGIESTRO sets are cogeneration ready: the heat produced
in the engine during power generation can be
recovered as explained on the following diagram:
(1) - Diesel
oil tank (only for initial cold engine
start) (2) - Main
biofuel tank (3)
- Engine (4) - Clutch (5)
- Flywheel/alternator
(stores energy and produces electricity) (6)
- Electronic
inverter (7) - Radiator (8)
- Engine cooling
pump (9)
- Engine heat
recovery (10) - Exhaust
gas heat recovery (optional) (11)
- Catalytic
converter (optional) (12) - Cold
exhaust (13) - Heat
exchanger (14) - Boiler
(wood or biofuel) (15)
- Hot water
tank (16-17)
- Circulating
pumps (18) - Heaters (19) - Lavatory,
shower (20) - Water
supply (21) - Main
power breaker (22) - Lights,
appliances
The
engine cooling circuit can be sent to
a heat reservoir in the building, from
which hot water and space heating are
produced.
The
amount of heat recovered is roughly equal
to the amount of electric power produced.
In residential applications, this is
sufficient to cover the hot water needs
free of charge.
When
the heat reservoir is full, excess heat is
classically dissipated by the engine radiator.
An optional heat exchanger further recovers
exhaust heat, doubling the amount
of heat recovered and pushing thermal
efficiency to 90%.
In
residential applications, this enables
to cover free of
charge the heating needs
of a sufficiently insulated house.
The
engine cooling circuit can be sent to
a heat reservoir in the building, from
which hot water and space heating are
produced.