Bug with heating simulation

Energy3D Forum Forums Energy3D Questions Bug with heating simulation

This topic contains 5 replies, has 2 voices, and was last updated by  Charles Xie 3 months, 2 weeks ago.

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  • #116

    michel_123
    Participant

    Hi,
    There is an error in August when I simulate for both Roberval and Quebec city. There is a significant heating demand in August however the environmental data shows temperature well above the thermostat set point.

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    #118

    Charles Xie
    Keymaster

    Here are the temperature data of Quebec and the energy simulation results.

    The reason that it still needs heating in August is because for a long time of the day the temperature is well below 20 C (the heating setpoint). As we don’t account for thermal mass, the energy stored during the day has no effect on the temperature in the house at night. I agree that this is a bug.

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    #121

    michel_123
    Participant

    Hi,
    In my simulation the heating setpoint is 5 C, So even without considering thermal mass, heating should not kick in? May be it is due to the fact that the simulation is trying to maintain a constant temperature as per setpoint schedule.
    Is it possible to turn off cooling (air conditioning) in the simulation?

    • This reply was modified 3 months, 2 weeks ago by  michel_123.
    #123

    Charles Xie
    Keymaster

    I looked at your model and the setpoint for August was set to 22 C. Only in September you set it to 5 C. When I ran your simulation for September 1st, I got a huge AC cost and no heating.

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    #125

    michel_123
    Participant

    You are correct, I reduced the set point in August to 5 C and no longer have power surge.
    Is there a way to switch off air conditioning and solar in the simulation?

    #126

    Charles Xie
    Keymaster

    If you don’t add any PV solar, then nothing is calculated. Currently, there is no way to disable AC.

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