"...installed on everything from beverage coolers to a 6,000 ton cooling system on a major Las Vegas hotel."

From the Blog

Feb
04

HVAC and refrigeration monitoring projects

Posted by randy on February 4th, 2012 at 11:48 am

Summary:

As a young company, we’re still learning the range of things that are possible with the Virtjoule solution.  In the last year and a half, we’ve discovered that not only has the technology met our original vision of functionality and price, the types of projects that can be accomplished are even more varied than we thought.  The Virtjoule solution has been installed on everything from beverage coolers to a 6,000 ton cooling system on a major Las Vegas hotel.

We often get asked, “What kind of projects can you do?”  In the earlier days of the company, the answer was in the form of suggestions of what we ought to be able to do.  After all, we had a device that could pick up vibration and the ability to track that vibration over time and see patterns emerge.  

These days, the answer is educated by field experience with the problems and the economics of solving those problems for our customers.  At the highest level, the answer is “If it vibrates, we can monitor it.”  As a company, we’ve done work in the various segments you’ll see in the list below.

To get a handle on the range of applications, perhaps it’s useful to take a scan across the types of units that we’re currently tracking.

Function Model
Beverage Coolers Micro Matic MMPP4301
Walk-in refrigeration Numerous models of Harford Duracool
Harford Duracool – H1984A8
Trenton – TEHA025L6-HS2A-F – 2.5 hp
Trenton – TEHA006E6-HS2B-B – .6 hp
Air conditioning – Split systems Ducane – 2AC13L60P – 2A – 5 ton
Package units Trane YSC048A3EMA2U – 4 ton
Trane YSC060A3EMA3 – 5 ton
Rheem RKKA-A073CL10E – 6 ton
Carrier – 48TCEA07A2A5A0A0A0
Bard PH13062
Bard PH1060-B – 4.6 ton
York D1NA042N05625C – 3.5 ton
York D1EB048A25B – 4 ton
York D2NA060N09025D – 5 ton
York DM090N10A2AAA4B – 7.5 ton
York BP090C00A2AAA4A – 7.5 ton
York D1EB060A25B – 5 ton
Johnson Controls – J05ZJN10D2AAA1C – 5 ton
Johnson Controls – J07ZHN15P2AAA4B – 7.5 ton
Johnson Controls – J10ZHN20S2AAA4B – 10 ton
Johnson Controls – J25ZJN32S2BZZ10001 – 25 ton
York ECO2 50 ton
Carrier 48P5 Horizontal VAV 100 ton
McQuay 40 ton
McQuay 70 ton
Heat pump packages and split systems Heil Tempstar – NHP060AKC1 – 5 ton
Coleman/York – HP060X1021A, 5 ton split system
Goodman CKL60-1 – 4.75 ton
Goodman CPLE60-1 5 ton
Goodman GPH1324M41AB 2 ton
York 20 ton
CRAC-(Computer room air conditioners) Liebert
Evaporative Coolers – Water pumps Can’t divulge manufacturer at this time
Air handlers Goodman AH120-00
Commercial Refrigeration Compressors Copeland Copelametic 4RA3-100A-TSK-800
Copeland Copelametic 6RA4-200A-TSK-800
Copeland Discus 3DB3F33KE-TFC-800
Copeland Discus 4DL3F63KE-TSK-800
Chillers York – 18 ton
Carrier 30GTN090 90 ton
Cooling towers Baltimore Air Coil, 125 hp electric pump and 100 hp VFD fan – 2,000 ton

One of the most satisfying things that we’ve seen is that this is a huge range of equipment, all being monitored by the same Virtoule Sense technology.  

If you’re familiar with some of the pieces on this list, you’ll know that some put off so much noise and vibration that you need ear protection.  Other pieces are so quiet and smooth that it’s very difficult to tell if they’re running when standing right next to them or even putting your hand on the machine.  I’ve been particularly impressed with the Trane series (YSC060A3EMA3) as very smooth operators in package units.

Because the Virtjoule sensor is self-calibrating, once it’s installed it can start off as a very sensitive device and self calibrate to the point where it can handle large magnitude vibrations.   This self-calibration means that the installation is roughly the same for all of these installations, stick it on, power it up, and start getting data.  An operating signature will always emerge that can be analyzed, reported on, and alerted on.

Customer and facility types

The table above is specific to equipment and equipment applications.  But what sort of customers and markets does this represent?  Here’s one look at the type of facility and customer:

  1. Executive office buildings
  2. Restaurants
  3. Strip malls
  4. Small market and convenience store refrigeration
  5. Data centers
  6. Hotels

Some are very high energy users where control problems or equipment degradation can cost thousands of dollars a year if the problem isn’t corrected. Some have equipment that might not burn a lot of energy, but the unit is serving high value contents. Food, pharmaceuticals, and computers are good examples of high value contents that need to be protected from catastrophic loss.

In a recent example, Virtjoule was able to give the owner of a walk-in refrigerator days of notice that their unit was degrading. The customer was able to get a refrigerant leak fixed before they lost control of the temperature of the cooler. One of my upcoming blog articles will discuss this “catch”.

If I were to sum up our results since we started, I would say we’ve helped customers save money by identifying control problems or system degradation that were racking up extended hours and energy bills. And we’ve helped some customers avoid serious loss of high value contents that were being refrigerated.

What new applications will we see this year? I can’t wait to find out.

[Randy Cox - CEO and co-founder of Virtjoule - He has been the software designer and analytics engineering for Virtjoule Sense sensors. He studied Chemical Engineering and Petroleum Refining at the Colorado School of Mines. You may contact Randy at: randy at virtjoule dot com]

Print Friendly

Leave a Reply


× 9 = twenty seven

  1.  

    |