DAIKIN ALTHERMA SIMULATION v3.7.6

The Daikin Altherma Simulation App provides for every specific application and appropriate heat pump selection, taking into account the needs of the building and specific climate data.

As well as a full material selection, the app provides detailed information for the installer and the end-user, on the expected outcome of the specified Daikin Altherma unit for its specific application and climate:

  • Seasonal efficiency of the heat pump system.
  • Amount of back-up heater operation.
  • Energy consumption and energy cost per month.
  • Savings on running costs compared to traditional heating systems.
  • Detailed report all this information is going to be summarised in.

The Daikin Altherma Simulation App can be used as an indication for dimensioning Daikin Altherma heat pump systems. The app works with following assumptions.

Design conditions:

  • A detailed study to calculate the heat load should be made. The heat load of the house is a crucial input in the app. Miscalculating the heat load will lead to badly dimensioned heat pump systems with a reduced efficiency. Calculating the heat load cannot be done with the simulation app.
  • The app uses climatological data, which has been measured and averaged over a number of years. Real conditions will differ from these averaged values.
  • The simulation is based on the assumption that heating is required 24h/24h. The daytime capacity is calculated in function of ambient temperature and design heat load. The nighttime capacity (night setback) is calculated in function of ambient temperature and fraction of design heat load, for which this fraction is defined as required indoor night temperature divided by 21,0°C.
  • Eurelectric provides the CO2 emissions per kWh electricity for every country. If Eurelectric does not give a value, the app uses an average value of 0,3540 kg/kWh instead.
  • Detailed report all this information is going to be summarised in.

Personalising the input data:

Under ‘Preferences’, following input data should be reviewed for every new simulation.

  • Minimum ambient temperature at which the heating capacity is 0 kW.
  • Prices for gas, fuel and electricity (including day and night price period) used for comparison.
  • Day and night period for design room temperature, including night setback temperature.
  • Eurelectric provides the CO2 emissions per kWh electricity for every country. If Eurelectric does not give a value, the app uses an average value of 0,3540 kg/kWh instead.
  • Detailed report all this information is going to be summarised in.

Efficiencies of gas and oil boilers:

The efficiency values for gas and oil boilers used for comparative calculations are adjustable under ‘Preferences’. The default efficiencies are chosen to reflect the minimum requirements of the European Boiler Efficiency Directive 92/42/EC for low temperature boilers.

Domestic warm water production:

The Daikin Altherma system can optionally be combined with a sanitary warm water tank for the preparation of domestic warm water. The type of tank and its capacity can be selected in the simulation for the investment cost calculation.

Cooling mode:

The reversible version of the Low Temperature Daikin Altherma system can provide cooling. The energy consumption for cooling is included in the energy and cost calculations when a reversible system is selected and cooling operation requirements and design parameters/conditions are defined.

  • Daikin Altherma Simulation App was published.

Daikin Altherma Simulation App is works on all devices which have Microsoft Windows operating system.

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