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Heating/cooling when out of the interval of acceptable temperatures

asked 2016-06-23 14:19:00 -0500

Fabio gravatar image

updated 2016-06-24 02:31:41 -0500

I'm trying to model the energy consumption of an office. I have a question for the heating/cooling consumption. The logic behind he control is quite simple. There is an interval of acceptable temperatures, let's say that it is [x,y]. If the temperature in the room goes under x, then the heating mode is on, while if the temperature goes above y, the cooling takes place. Moreover, this interval [x,y] changes with the season.

I would like to know how I can implement this logic in OpenStudio.

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answered 2016-06-24 02:30:21 -0500

updated 2016-06-24 02:31:23 -0500

That's exactly what the default thermostat in OpenStudio does. It is a ThermostatSetpoint:DualSetpoint.

If you put a heating schedule of 19°C and a cooling schedule of 26°C for example, heating will be on as required to heat up to 19°C. Conversely, the cooling will be on to cool down to 26°C. In between, what's called a "deadband", neither heating nor cooling is done.

Like I said, this object takes two schedules, so it's easy to change the setpoints throughout the year.

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what if i don't have a cooling system and i just want heating to stop at 26°C but no cooling. Thank you for your time.

designbuilderknowledge gravatar image designbuilderknowledge  ( 2016-10-14 01:24:28 -0500 )edit

You put a cooling schedule at 50C or something high like this...

Julien Marrec gravatar image Julien Marrec  ( 2016-10-20 06:13:06 -0500 )edit

But that only stops cooling and doesn't allow a range for heating so it will heat when ever the temp. is less than heating set point what if I want to maintain a room temp. of 22 to 25°C how to set the limit

designbuilderknowledge gravatar image designbuilderknowledge  ( 2016-10-20 07:06:09 -0500 )edit

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Asked: 2016-06-23 14:19:00 -0500

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Last updated: Jun 24 '16