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Optimize HVAC consumptions by changing HVAC setpoints

asked 2016-03-31 09:25:08 -0500

Wilson gravatar image

updated 2016-04-03 14:56:21 -0500

Hi! I created my model(Supermarket) using OpenStudio. I created a single zone building with an HVAC system. I'm trying to optimize my building HVAC electricity consumption by changing HVAC setpoints. What I'm doing now is changing HVAC setpoints "by hand" in orther to study the consumption changes, always looking to confort restrictions. As I'm also looking to electricity costs, that are variable during the entire day, I'm trying to find a tool that can give me the setpoints that can minimize energy costs. Do you recomend any tool or any mathematical model that can be useful to this optimization problem? Thank you

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This question is unlikely going to produce any good answers in its current form. It is too vague and you haven't explained what you've tried. I suggest revising it and trying to narrow the problem you have.

Julien Marrec gravatar image Julien Marrec  ( 2016-04-03 06:09:56 -0500 )edit

Thank you for your suggestion Julien Marrec.

Wilson gravatar image Wilson  ( 2016-04-03 14:59:30 -0500 )edit

4 Answers

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answered 2016-04-12 10:54:58 -0500

Check out the calibration example here

In there is a measure that changes setpoints and other HVAC parameters. Calibration is just a subset of Optimization and the OS tools translate between the two very easily.

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Thank you for your help BrianLBall. I don't have many experience working with measures. Can you tell me how can I add the measure that you are suggesting to my model? Thank you

Wilson gravatar image Wilson  ( 2016-04-12 19:23:41 -0500 )edit

The user guide in the spreadsheet repo discusses how to use measures in an analysis context. There are some example spreadsheets to look at as well. Look here for how to use measures in the OS app.

BrianLBall gravatar image BrianLBall  ( 2016-04-14 09:03:15 -0500 )edit

Thank you BrianLBall.

Wilson gravatar image Wilson  ( 2016-04-14 19:17:07 -0500 )edit

answered 2016-04-04 04:00:15 -0500

For optimization runs, look at GenOpt or JEPlus+EA

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Thank you Julien Marrec.

Wilson gravatar image Wilson  ( 2016-04-04 08:12:11 -0500 )edit

answered 2016-04-04 14:33:57 -0500

BL gravatar image

A quick easy way is to use parametric feature in energyplus. The software has a example file for this :ParametricInsulation-5ZoneAirCooled.idf.

It is not the perfect parametric optimization, but is a solution

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Thank you for your suggestion Bo_Lin.

Wilson gravatar image Wilson  ( 2016-04-05 07:56:11 -0500 )edit

answered 2018-02-15 06:45:46 -0500

Correct me if i'm wrong. Assuming you working with Energy plus directly you can use BCVTB external interface to overwrite thermostat setpoints

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Asked: 2016-03-31 09:25:08 -0500

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Last updated: Apr 12 '16