Application example 2

Waste incineration plant with downstream district heating system.
In order to be able to use the fuel more efficiently when recycling waste, the plant operator opted for a steam boiler alongside a multi-stage Spilling steam turbine when the boiler house was refitted. So now electricity can also be generated alongside heat using the same amount of fuel. 

A large part of the generated heat is now fed into the district heating grid, the rest is cooled away. Since the district heating grid has to supply different flow temperatures depending on the time of the year, a 6-stage turbine with variable back pressure was designed. Furthermore, the plant is equipped with a bleed for the feed water pre-heating which requires steam at higher pressures. 
Spilling multistage steam turbine with sliding back pressure for summer and winter operation of district heating grid
Benefits for the customer

  • Waste-to-energy conversion
  • Additional yield due to generation of domestic electricity 
Summary of system data

Steam boiler plant
Municipal waste-fired water tube boiler

Spilling unit
6-stage axial turbine type STM-C-6-800 with nozzle group control and bleeding

Live steam pressure 41 bara 400 °C
Vacuum/back pressure 0.5 – 3.5 bara  
Turbine output 4780 kW 

Utilisation of heat
Process with district heating grid, operated according to fuel capacity, excess heat is discharged
Applications steam
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Application examples
Fields of application
Your benefits
Services and accessories
Application examples
Fields of application
Your benefits
Services and accessories
Plant description
Technical plant data
Benefits for the customer
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