Wood-fired CHP in Lizums (Latvia) successfully passed operability test

In Lizums, Latvia the wood-fired CHP built by HoSt has succesfully passed the operability test and that already after only one year and three months. This means that the installation generated electricity for five consecutive days.

The plant in Lizums is a highly efficient wood-fired CHP with a high pressure (55 bar) water tube steam boiler of 14.5 MWt and a 3.3 MWe steam turbine. The plant supplies heat to a wood pellet line and a furniture factory.

PROJECT MILESTONES

START-UP / FIRST FIRE March, 2017
PASSED OPERABILITY TEST April, 2017

SPECIFICATIONS

WOOD STORAGE 500 m³ bunker with overhead crane
WOOD SUPPLY SYSTEM Bunker, chain scraper and hydraulic push infeeder
FURNACE 7.5 tons/hour wood chips
WATER TUBE STEAM BOILER 14.5 MWth at 55 bar and 450 °C
STEAM TURBINE 3.3 MWe at 79 °C
STEAM CONDENSOR 10.7 MWth at 79 °C
FLUE GAS CLEANING Multicyclone
EFFICIENCY > 88%

CHARACTERISTICS

  • The wood-fired CHP has been built at a big carpentry in Lizums and delivers 3.1 MWe electricity and 10.5 MWt heat to the carpentry;
  • Waste wood derived from the production and tree bark coming from the saw mills is used as fuel.