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Absorption heat pump

If an active flue gas condensation system with an absorption heat pump is integrated into a heating plant, additional heat can be extracted. This leads to increased heat output from the heating plant with the same fuel consumption, or to reduced fuel consumption with the same heat output. For warm water boilers (105 °C supply temperature), this means an efficiency increase of approximately 20 percentage points, which corresponds to an additional heat yield of 20–25%. In the case of a hot water boiler subject to testing (150 °C supply temperature), a further 5–10 percentage points of efficiency increase can be generated. This corresponds to an additional heat yield of 30–40%.

Application
Active flue gas condensation for large systems from 1000 kW nominal heat output
Operating medium
Water-lithium bromide salt (LiBr) solution
Operating range
from 1000 kW
Fuel water content
M 35-60

Pro­duct de­tails

  1. Evaporator
  2. Absorber
  3. Generator
  4. Condenser
  5. Vacuum pump
  6. Control with control panel and interface to the Schmid PLC
  7. Circulation pumps
  8. Plate heat exchanger (not shown)
  9. Sensors and cabling (not shown)
  10. Insulation (not shown)
  11. LiBr solution (not shown)

Ihre Vorteile

  • High increase in efficiency and performance from a single source
  • Reduction in heat generation costs
  • Significant increase in the degree of biomass utilization
  • 20 – 40 % more heat from the same amount fuel – Increased output of the heating plant without expanding the silo
  • Low additional maintenance and servicing costs
  • High partial load capacity of the absorption heat pump (up to 10 % of nominal output)
  • Power consumption < 1% of the heat output of the absorption heat pump (compression heat pumps > approx. 25%)
  • Safe operating materials Water and lithium bromide salt
  • Operation of the absorption heat pump in negative pressure: No media escape in the event of leakage
  • Conserving resources by reducing biomass consumption
  • Reduction of visible vapor clouds at Stack through efficient flue gas condensation
  • Quiet operation of the heat pump

 

How an absorption heat pump works

Ad­van­ta­ges of an ab­sorp­ti­on heat pump

Re­tro­fit­ting exis­ting hea­ting plants

Wood-fired heating plants that are already equipped with a flue gas condensation system can be retrofitted and benefit from the use of the new “Revolution adaptive” combustion control system and an absorption heat pump.

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