Amagerværket power station HOFOR is erecting a new CHP plant, AMV4, based on
sustainable woodchips. This is part of Copenhagen municipality and HOFORs
ambition to be able to deliver CO2 neutral district heating at a relative low
cost and with high security of supply. The new unit is expected to be ready for
operation in spring 2019 and will have a nominal fuel capacity at 500 MW, power
production of 150 MW and heat production of 400 MJ/s.
be equipped with a CFB boiler, a backpressure turbine with bypass, DeNOx-unit,
bagfilter, fluegas condensing, water treatment for the flue gas condensate and
2 closed storages for the biomass.
unit, there will be a lot of equipment, which demands cooling. These components
are planned to be cooled with sea water. Alternatively, heat pumps could be used
to utilize the excess heat from these components, and perhaps also the excess
heat from the flue gas condensate after the district heating heat exchanger. At
present, there are no plans for including heat pumps at AMV4 for these purposes.
This is because the highest priority at the moment is to be ready for
commercial operation on time, and gain the advantage of cheaper green district
heating as fast as possible. But it might be interesting to integrate heat
pumps afterwards, to improve the energy efficiency of the plant even further.
if there is an interesting business case in integrating heat pups in the power
plant process at AMV4, one cold:
different sources of excess heat, e.g. from flue gas condensate, generator,
transformers, lubricating oil etc.
different types of heat pumps that might be suitable for utilising the excess
different layouts for process integration of heat pumps
process calculations for different layouts
the rules regarding taxes on electricity in heat- and power production and
possibilities for tax exemption
business case evaluations and compare different solutions
In collaboration withHofor