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And we’ve also seen boiler plants venting steam during the summer months (this makes us cringe) due to a mismatch between a boiler’s minimum firing rate and the summer steam load.What a perfect place for an absorption chiller, with none in sight!Do you want a quick, cheap diagnostic tool that you can use anywhere in the plant, or a permanent metering setup specific to one piece of equipment?[Read more…] My boss often says, “You can’t measure energy savings.” What he means is that when you put in an energy efficiency or renewable energy project, you have to know the energy consumption both before and after the project in order to figure out what the difference – the savings – actually is.It also means having confidence that the equipment will be able to operate stably across its full lifetime, and that it is doing what it is supposed to do in the larger context of the site.For a motion sensor in a lighting upgrade, for example, this doesn’t just mean that it’s wired to the right fixture.Here are the follow-up compressed air efficiency measures I’ll talk about in this post and the next posts: I promised in my last post that I would open up our equipment cabinet and introduce you to some of the tools that we use to meter or estimate energy consumption.
Then we’ll figure out the economics of a theoretical chiller and see whether it would be a good idea at certain combinations of fuel and electricity prices.
In today’s post, I’d like to discuss the not-so-glamorous world of commissioning.
Back as an engineering student, I remember thinking of commissioning in vague and limited terms.
Compressor replacements are great for saving energy, but they do a lot more good if you check for other problems you choose a new compressor.
With a little work, you may be able to avoid a compressor replacement altogether or at least pick a smaller compressor than you may have thought you needed.