Bosch Chp For External Waste Heat Use; Description Chp Ce - Bosch CHP CE 240 NE Technical Manual

System components
2.2

Bosch CHP for external waste heat use

2.2.1 Description CHP CE ... NE
The modular construction system of CHP modules for
external waste heat use in the output range
240 kW ... 2000 kW ensures an operation that
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simplifies maintenance, commissioning and planning.
Bosch CHP modules care supplied for external waste
heat use in 2 different types and sizes:
• CHP CE ... NE with an output range to 400 kWel.
based on the approved Bosch CHP modules CHP CE
• CHP CE ... NE in the output range 600 ... 2000 kW
is a modular CHP module in the output range of
600 ... 2000 kW .
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The CHP module consists of a system module, that
can be extended in function via corresponding
accessory modules.
85 °C
333 kW
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600 kW
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CHP 600 NE
Fig. 2 Decoupling of heat of flue gas and cooling water
in a CHP module, example CHP module with
600 kW performance
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[1] Natural gas
[2] Waste heat performance (depending on
temperature change in steam boiler)
Electrical output 240 kW
Both CHP modules with electrical output of 240 kW
and 400 kW are delivered as compact modules, ready
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for connection. The components are integrated in the
soundproof cabinet. As ready-for-connection units, the
compact modules are equipped with an integrated
control cabinet. They further comprise a spark-ignited
gas engine (only for CHP CE 400 NE with flue gas
turbocharger) and a synchronous generator for
producing three-phase current (400 V, 50 Hz) and
heating energy. They are suitable for connection,
electrically and for control purposes, to the German low-
voltage network in accordance with VDE-AR-N 4105 or
the regulations of the Federal Association of the German
Energy and Water Industry (Bundesverband der
deutschen Energie- und Wasserwirtschaft, BDEW).
The variant described here spares the internal flue gas
heat exchanger, in consequence the flue gas heat is
available at a high temperature level for external use.
6
75 °C
2
453 °C
~ ~
360 kW
1438 kW
1
6 720 819 535-02.1T
and 400 kW
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The catalytic converter is installed outside the closed
module frame for easy accessibility.
The flue gas silencers are designed for high
temperatures and a mounted downstream the catalytic
converter and upstream the external heat sink.
Electrical output 600 kW
Modular designed CHP modules are available in the
following output ranges:
• 600 kW
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• 800 kW
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• 854 kW
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• 1200 kW
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• 1287 kW
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• 1560 kW
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• 1718 kW
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• 1999 kW
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• 2000 kW
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The core of the CHP consists of a perfectly tuned unit
with components such as a spark-ignited gas engine
with flue gas turbocharger and a synchronous generator
for producing three-phase current (400 V or 10.5 kV,
50 Hz).
The individual components, such as pumps, heat
exchangers or sensors are combined in modules, wired
and integrated electrotechnically in a terminal box. The
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spatial arrangement of the modules can be adapted to
the existing spatial conditions. The options are
constructed in a way that they can be integrated in
existing modules without too much technical effort.
Independently of the ordered options, Bosch CHP
systems provide as standard a comprehensive safety
and fire prevention concept.
The 4-draught CHP modules fulfil, electrically and for
control purposes, the German grid connection
conditions in accordance with
VDE-AR-N 4105 low-voltage or the medium-voltage
regulation by the Federal Association of the German
Energy and Water Industry (Bundesverband der
deutschen Energie- und Wasserwirtschaft, BDEW).
In the variant described here, the CHP module is
designed for external heat utilisation and therefore
provides the flue gas heat for another system. The flue
system is designed for flue gas temperatures up to
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550 °C.
Achievable performance of waste heat utilisation in
the steam boiler
The output of the utilised waste heat depends on the
cooling degree of the flue gases in the flue gas boiler. As
an estimate, this is at approx. 20 ... 25 % of natural gas
use in kW.
... 2000 kW
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Systemlösung – 6 720 885 509 (2018/03)