GTP working with Binder are now installing a range of CHP systems using either ORC (Organic Rankine Cycle) technology utilising HTHW, Hot clean gas or thermal oil and Screw Expanders, utilising steam or low temperature hot water which have the following advantages:

  • Simple maintenance procedure
  • No operator attendance required (except steam boilers which requires 72hr attendance)
  • Long Plant Life (20 years +) complete with 20 year guarantees
  • No specialist water treatment required (except steam)
  • Operates using standard fuels to EN41961 and doesn’t require specialised difficult to obtain fuels
  • High Return on Investment
  • High efficiency electrical generator producing up to circa 18% electrical output
  • Safe environmentally friendly working fluid
  • Simple operating procedure
  • Automatic and continuous operation

Biomass combined heat & power: A cleaner alternative

Biomass CHP systems are much less carbon intensive than gas or coal-powered plant, as they use a lower-carbon, more sustainable fuel source.

There are several hundred biomass-fuelled CHP plants in operation on the continent – the majority using solid biomass. Sizes vary, but most installations have a rated boiler output of more than 5MWth, with only a few generating at below 50kWe. These systems tend to use a mature combustion technology such as a steam turbine but systems using the Organic Rankine Cycle (ORC) are increasingly common.

Types of CHP

There are three main medium-scale Biomass CHP options offered by GTP – each depending on the applications and individual site requirements. There are variants on the options listed below, and these can be incorporated once specific and detailed information has been determined.

Screw expanders have an approximate efficiency of c.6% and c.18% for applications incorporating ORC.

  • Steam boiler with screw expander up to 500kWe
  • Hot air boiler with ORC (Organic Rankine Cycle) up to 250kWe
  • Thermal oil boiler with ORC up to 1MWe
  • Steam boiler with steam turbine up to 1MWe