Category Archives: Weather and Climate Interactions with Buildings and Systems

These posts discuss interactions between buildings and building systems (the controlled environment) (hopefully) and the local climate (the uncontrolled environment).

Hourly Weather Data Website Update

Frequently, when operating buildings or doing energy calculations for their systems, it is very handy to be able to obtain hourly weather data for a given location.   That is why I think the post I did a while back on … Continue reading

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A Free Electronic Psych Chart and How to Use It to Plot Basic HVAC Processes

Ryan Stroupe of the Pacific Energy Center recently worked out a deal that allows him to provide a free limited capability version of Hands Down Software’s electronic psych chart.  You can get a copy at this link and a overview … Continue reading

Posted in Air Handling Systems, Economizers, Excel Techniques, HVAC Calculations, HVAC Fundamentals, Psychrometrics, Resource List and other Resources, Weather and Climate Interactions with Buildings and Systems | Leave a comment

Happy Holidays plus A Bit About Snow Crystals

As a kid growing up in Pennsylvania, we more often than not had a white Christmas.  So there are a lot of fond memories for me associated with Christmas time snowfalls and the Pennsylvania woods.  You might get a sense … Continue reading

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Retrocommissioning Findings: Economizer Mixed Air Plenum Stratification–Overview

Happy New Year! I hope everyone had a nice holiday and now are getting back into the swing of things.  Kathy and I had a great holiday and are just finishing putting away the Christmas decorations, which always seems to … Continue reading

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Retrocommissioning Findings: Make Up Air Handling System Simultaneous Heating and Cooling – The Clues – #5 – The Utility Patterns Show High Baseline Consumption Patterns

In the last post, we saw how valuable utility data can be in terms of documenting improvements we make to our facilities and in ensuring they persist.   But utility consumption patterns also can provide clues regarding opportunities, especially when combined … Continue reading

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Retrocommissioning Findings: Make Up Air Handling System Simultaneous Heating and Cooling – The Clues – An Overview

So here we go;  the first post in the first RCx Findings Series.  The subject of this finding – simultaneous heating and cooling – is a very common opportunity in our systems.  In this post, I will look at both … Continue reading

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Good News about NWS Weather Data, Plus Working with Date and Time in Excel

This is a quick update to my recent post on Bin Weather Data for the United States and International Locations. First the Good News Just the other day, I went to the NCDC site I discussed in my post on … Continue reading

Posted in Excel Techniques, HVAC Calculations, Weather and Climate Interactions with Buildings and Systems, Weather and Climate Resources | 1 Comment