The Remeha chp

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The Remeha µ-chp based on a combi boiler with
stirling engine Ir. P.Gelderloos

Ing. M.J.Bijkerk
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Content Technology Specifications/comparison
with condensing boiler Savings, results field
test Status of the project Market
introduction Issues to work on
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Technology The free piston stirling engine
(FPSE)
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Requirements in comparison with condensing boiler

• To compete with the condensing boiler, the µ-chp
  should
• be very reliable
• have higher savings on costs and energy (CO2)
• be applicable on the same location and in the
  same installation as a wall hung condensing
  boiler
• have the same level of comfort.
• have a Pay back 5 years compared to the
  condensing boiler (5 years after introduction)

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Specifications

• Dimensions 900x490x420
• Wall hung (solo/combi)
• Electrical output 1 kW
• Thermal output on stirling 5 kW
• Total thermal output 28 kW
• 1 to 1 replacement
• Same connections as condensing combi boiler

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Savings, results fieldtest
Average results after one year
expected realised
possible Electricity production
2250kWh 2103kWh 2356kWh Reference gas demand
1562m3 1562m3
1562m3 Electricity/heat ratio
16,3 18,9 18,9 Savings on energy
bill 300,00 311,00
342,00 Savings CO2
746 kg 836 kg
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Status and planning
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Issues to work on (EU)

• Labeling system
• Standards concerning the house installation.
• Smart metering
• Fair export tariff
• Grants for the end user to be available in the
  first 4 to 5 years