Search Results for: scatter

Economizer Analysis via Scatter Plots–Linking Excel Chart Labels to Data in Cells

As you may recall, this fall, I started a string of posts on using scatter plots to assess building performance.  The 8th post in the series was going to use the technique to assess and economizer by comparing what a … Continue reading

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Using Scatter Plots to Assess Building Performance–Part 7

A number of these posts have focused on a data cloud for an office/training facility located in Monterey California.  Much of the work associated with the examples I have used occurred as a part of a field class where we … Continue reading

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Using Scatter Plots to Assess Building Performance–Part 6

While teaching a class earlier today, I realized that there were a couple of useful techniques that I had yet to illustrate in terms of working with scatter plots.  These techniques are particularly useful in that they allow you to … Continue reading

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Using Scatter Plots to Assess Building Performance–Part 5

This is an example of using interval data, filters, and formatting to make an assessment regarding how many tons of cooling would be required for an elevator machine room.  In this particular case, the elevator machines served hydraulic elevators.   Hydraulic … Continue reading

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Using Scatter Plots to Assess Building Performance–Part 4

This post and several that follow will round out the video clips and information in the preceding posts in the string by providing a few additional examples of how interval data and scatter charts can be used to perform building … Continue reading

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Using Scatter Plots to Assess Building Performance–Part 3

Up to this point, I have been looking at how you can use scatter plots to assess building performance in the context of building energy data.  I have focused on that because it can be a really powerful to help … Continue reading

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Using Scatter Plots to Assess Building Performance–Part 2

So far in this string of posts, I have pointed out some of the advantages of using a scatter plot to analyze building performance data and, via a video clip, illustrated how to create a basic scatter chart of kW … Continue reading

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Using Scatter Plots to Assess Building Performance–Part 1

Some of you may be wondering what happened to me and the string of posts I was doing about scoping a Dental Clinic.   The answer is that my summer became extremely busy between travel, projects, and little bit of personal … Continue reading

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A New Application for Plot Digitizer (Plus a Quick Look at Hydraulic Variable Speed Drives and Chiller Free Cooling Cycles)

Those of you who know me know I am quite enamored with a little freeware application called Plot Digitizer.  If you are unfamiliar with it, the application allows to to create CSV (Comma Separated Value) files from the lines in … Continue reading

Posted in Boilers, Hot Water Systems, and Steam Systems, Chillers and Chilled Water Systems, Data Logging, Excel Techniques, HVAC Calculations, Motors, Operations and Maintenance | Leave a comment

Universal Translator Workshop

Sorry to disappoint Star Trek fans, but this is not a workshop about a device used to decipher and interpret alien languages into the native language of the user.  Having said that, if you are into building systems commissioning and … Continue reading

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