Enhancement: Calculate the power loose of the KWL

[killee]

Hi @laszlojakab,

thank you very much for your great working integration!

For my information and to get a idea how much termal energy i'm loosing I calculate it in HA:
{{ states('sensor.helios_airflow_rate') | float(0) *(-0.34) * ((states('sensor.helios_supply_air_temperature') | float(0))-(states('sensor.helios_extract_air_temperature')) | float(0))}}

Integrate it and let it track with the Home Assistant Energy Dashboard.

The decision to get fresh air or save energy is more number driven ;-).

Probably you can add it to your component.

Regards

[laszlojakab]

Hi @killee!
Thank you for the info! Do you have any reference where can I found more information about this formula?
Regards,
Laszlo

[killee]

I used Wikipedia and other googling...
So better find the Wikipedia Artikel at your language.

Dry air at 20°C has about 0,27917 Wh/(kg·K) and 1,2041 kg/m³

So 1qm air has about 0.34Wh/(m³*K)

We now the flow rate in qm/h and the difference temperature between outside air and fresh air.

Multiply the airflow with the temp difference is the energy the air is transporting.

It is not exact because I assume that the air is almost dry and at same temperature. But the air flow is much more worse...

[cyhyryiys]

Hi Killee, I think that's something I'm looking for. Can you tell me where you entered this code? configurations.yaml? or is it stored in services using a helper (integral sensor?)?
I would be happy to receive an answer! Thanks a lot!