Icon kaelteCalculation of waste heat potential - Refrigeration plant

Your data on the waste heat source

The cooling capacity of the refrigeration system can be read off the system type plate or the data sheets.
A thermometer at the condenser indicates the cooling water outlet temperature (usual temperature: 40 -45 ° C). Alternatively, a measurement with a non-contact thermometer should be carried out.
Partial load operation of a system reduces the amount of waste heat. Estimate what percentage of your system is operating at partial load instead of nominal load.
For power generation, the waste heat source must be operated at rated load throughout the year.
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The system output can be more or less reduced in partial load operation. Determine the respective performance of different partial load conditions and weigh them.
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Your data on the intended use of waste heat

Select a waste heat utilization (or a heat exchanger in the room air conditioning system module).
Note: When using heat pumps, additional power is required.
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Depending on the type of waste heat used, enter the number of weeks in which the available waste heat can be used.
For any heating support, the waste heat can only be used during the heating season for the building.
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Cost estimates
  • Fuel price:
    • Gas: Net price per kWh (see invoice)
    • Fuel oil: 1 l of fuel oil contains approx. 10 kWh of energy => Net fuel oil price per liter (see fuel bill) divided by 10 gives the price to be entered per kWh.
  • Interest rate: interest rate to be paid on a loan
  • Payback Period: Time period within which the waste heat utilization facility is depreciated.
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