Solutions Volume 16 | Winter/Spring 2017
U.S. companies lose more than
$500B in lost productivity annually.
Safety, Performance, and the Pursuit of Productivity
PUBLISHED BY DANFOSS NORTH AMERICA YEARS IN PUBLICATION: 17 ADDRESS: Danfoss 11655 Crossroads Circle Baltimore, MD 21220 EDITOR: Lisa Tryson
LETTER FROM THE EDITOR
Dear Readers, Risk. Can we avoid it?
FEATURE: Safety: The Unmarked Path to Productivity
With a new Administration in place in the U.S., it is not yet clear how our industry will be impacted by business, energy, or climate policy. The only thing that is certain is uncertainty.
MANAGING EDITOR: Jamie Baird INQUIRIES: [email protected]
Printed on paper from responsible sources. Information contained in Danfoss Solutions may be republished only with prior permission of Danfoss and always with credit to Danfoss Solutions. Comments, suggestions, and contributions are always welcome. This publication should not take the place of appropriate technical or legal advice related to companyspecific circumstances. Danfoss does not assume any liability of any kind whatsoever for the use of or reliance upon the information contained in this publication.
CASE STUDY: Engineering Tomorrow Makes Winter Safer in Buffalo
In this issue of Solutions magazine, we’ll take a closer look at the case for safety as it relates to productivity, and what it means for minimizing risk.
But while that is true to some degree, we can be certain that industry’s pursuit of both safety and performance will remain key points of focus — from the safety of people and food to the performance of equipment and buildings. In this issue of Solutions magazine, we’ll take a closer look at the case for safety as it relates to productivity, and what it means for minimizing risk. We’ll also look at ways that technologies are actively improving safety and performance in buildings and businesses across the country. As always, we welcome your suggestions and feedback on this issue.
Lisa Tryson, Editor
CASE STUDY: Engineering Tomorrow Eliminates Wasted Energy at University Pool
CASE STUDY: Engineering Tomorrow Optimizes Convenience Store Performance
Solutions Winter/Spring 2017
PRODUCT HIGHLIGHT: Innovation Award Winners
With deep roots in engineering, Danfoss provides innovative technologies and solutions that do more with less today, and stands ready with a broad portfolio and expertise to meet the world’s growing set of challenges in infrastructure, a safe food supply, energy efficiency, and low-GWP, climate-friendly solutions. That’s how we’re Engineering Tomorrow. VOLUME 16 | WINTER/SPRING 2017 | 01
The Unmarked Path to Productivity According to conventional wisdom, safety costs money. Risk is the natural order of things, and to escape it we add protective items we believe will keep us safe from harm. We can install guards, shields, and railings, but they all cost money. When the National Transportation Safety Board “reverse engineered” all the addons prompted by Federal Motor Vehicle Safety Standards, they reported the results in added weight and cost — and much of the cost is transferred to consumers through higher prices, taxes, and insurance fees. When a leading consumer products magazine recently called for new safety technologies to be made standard on all vehicles, the article was entitled “Car Safety at Any Cost.” Safety measures cost.
IF YOU THINK SAFETY IS EXPENSIVE, TRY RISK.
When all the facts are in, safety is productivity — not cost — and innovation can be a key driver.
The other half of the equation is almost axiomatic: cost affects the economy. We want miners to remain safe on the job because we care about miners, the argument would go; however, ensuring their safety adds to the cost of coal, and as the cost of coal rises, the competitiveness of coal decreases and makes the user less competitive. Safe miners mean coal-fueled electricity costs more — even though safe coal does not create more electricity than unsafe coal.
When Food Safety News used USDA data to assess the economic cost of foodborne illness, they looked at 15 pathogens that cause 95 percent of illnesses and death from foodborne causes where a pathogen is specified. Evidently, such illnesses send more than 50,000 people to the hospital each year, and the annual cost to the economy is “more than $15.6 billion, or about half of the $32 billion the World Health Organization says the Ebola outbreak will cost the world economy.”
When economic growth levels are historically low, a question arises about safety. Do we really need all these regulations? Can we afford all the safety measures we have imposed on ourselves? Should we instead be paying more attention to cutting unnecessary costs and improving our productivity?
If you think safety is expensive, try risk. A 2013 New York Times article reported that asthma is “the most common chronic disease that affects Americans of all ages,” and the Centers for Disease Control and Prevention “puts the annual cost of asthma in the United States at more than $56 billion.” A leading factor in the increasing rates of asthma is widely thought to be indoor air quality.
The daily news underscores the point. A recent Wall Street Journal headline reads “Productivity Slump Threatens Economy’s Long-Term Growth,” while a New York Times article reminds that “Silicon Valley Has Not Saved Us From a Productivity Slowdown.” And writing in the IPWatchdog, Neal Solomon alerts readers that over “the past decade, economic growth, wage growth, business investment and productivity growth have declined” while “economists have discovered that productivity growth alone explains the dramatic development of industrial economies.” Productivity is the key to growth, so why should it not dominate decision-making? Solomon adds an important fact, however: “the causes of productivity growth are unclear, with capital, labor and technological contributions.” So what about safety?
Similarly, the Economic Policy Institute notes that the “total number of occupational illness and injury deaths in 2007 (59,102) was greater than the number of deaths from causes such as motor vehicle crashes (43,945), breast cancer (40,970), prostate cancer (29,093), and homicide (18,361).” The cost of workplace injuries and illnesses: $250 billion annually. When all the facts are in, safety is productivity — not cost — and innovation can be a key driver. Refrigeration, innovations in food processing, better food traceability, and the like all drive down foodborne illness rates — and, with them, the monetary cost of foodborne illness. Some financial
gains are obvious, while others are harder to specify, such as how much is saved by people not needing hospitalization — both in direct and indirect ones, since hospitalization is now a leading factor in infection. Similarly, recent innovations in buildings have enabled the tighter sealing of building envelopes. One effect was the ability to keep out a range of outdoor pollutants, from particulates to pollen. Another was the ability to trap and even cultivate indoor pollutants. It took a revolution in ventilation to fix the problem, but today buildings can be designed to keep bad air out and good air in. FOX Business cites an estimate from the Integrated Benefits Institute that “U.S. companies lose more than half a trillion dollars a year in lost productivity that can be traced to health.” Safety is not the only factor, but the numbers are staggering. So it is not surprising when companies like Logan Aluminum in Russellville, Kentucky, declare to the world “6 Million Man Hours Without a Lost Time Injury.” From the very beginning of modern technology and industry, the aim of vastly improved productivity was integrated with the aim of controlling risk. The two were co-dependent. Today’s productivity crisis may have the experts stumped. But it is possible that part of the solution may lie not in a faster pace, more automation, or training and retraining, however important those things may be. The evidence suggests that performance depends — perhaps first — on safety or the elimination of certain kinds of accidents. From the beginning, and still today, safety is productivity. n
VOLUME 16 | WINTER/SPRING 2017 | 05
snow on heated walkways.
Engineering Tomorrow Makes Winter Safer in Buffalo According to the National Weather Service, a series of lake effect events and clipper-type systems dumped 112 inches of snow on Buffalo, New York, in the winter of 2014–2015. In an area accustomed to harsh winters, this was still unusual — about 18 inches above normal. But even this impressive amount of snow was no match for the Danfoss snow melt system installed at Canalside, the heart of Buffalo’s waterfront revitalization.
For much of the 19th century, Buffalo’s Inner Harbor was one of the world’s most profitable business centers. The bustling port marked the western terminus of the Erie Canal and served as a gateway to the West. But all of this changed with the arrival of trains and automobiles in the early 20th century. Harbor activity sharply declined, and eventually much of the site was filled in with stones and dirt to accommodate streets and parking. In 1999, the Erie Canal Harbor Redevelopment Project outlined plans to reclaim the area for restoration. Sixteen years and more than $300 million later, the restored area encompasses Canalside, a mixed-use district that reconnects downtown Buffalo to the harbor. The redeveloped center of activity includes shallow canals restored to their 1825 footprint and sidewalks where towpaths once accommodated mules that pulled barges along the canals. During the summer, residents and visitors can rent paddle boats and remote control sailboats for use on the replicated canals, while winter brings with it the opportunity to ice skate on these same waters. Snow melt system clears path to canals Winter also brings snow and ice to the harbor. If the city hoped to offer ice skating on the canal, it needed to find a way to keep area sidewalks around the canals clear and dry to offer safe access to and from the skating area. That’s where the Danfoss snow melt system comes in. Provided by Comfort Radiant Heating, LLC, Clifton, New York, and installed by O’Connell Electric Company, Inc., Victor, New York, the snow melt system uses 8,000 square feet of Danfoss GX mats and cables, 10 digital sensors, and five GX 850 dual zone automatic control panels paired with five electric contactor and timer panels that control each of the system’s five zones. Danfoss provided the electrical contractor with diagrams indicating how the mats should be laid down and pairings of zones to controllers.
Because the Canalside project marked O’Connell Electric’s first experience with the snow melt system, the company hired Russ Hacker, owner of Comfort Radiant, as a consultant who could walk them through the installation process. “We knew the first day we met Russ that this was the right product and he was the right person to help us install it properly,” said Joe Pellerite, executive vice president of operations at the electrical contracting firm. “He met with everyone involved in the project — the general contractor, masons, and our electricians — to instill in them the importance of following the proper procedures during installation.” Mats and sensors embedded in concrete Engineered for use in concrete, asphalt, and under pavers, the Danfoss line voltage system consists of twin conductor heating cables and a single-point connection with a 20-foot cold lead. The system relies on digital sensors to provide precise feedback regarding precipitation and temperature and an automatic control panel that delivers total control of snow melting system set points. The GX system is embedded during paving. Just before concrete is poured, electricians attach the mats to the reinforcement mesh that ends up in the middle of the pour. Sensors, too, are embedded in the poured concrete. “The snow melt system was one of the highlights of the project,” said Tom Zielke, O’Connell Electric foreman. “The system was easy to install, but, in order to ensure the warranty from Danfoss, testing was critical. The resistance tests alone required us to test the cables when we received them to make sure they weren’t damaged during shipment. Then, we tested them after we installed them, again as the concrete was poured, and finally after the concrete was poured. In this project, the cables passed every test, which speaks to their durability and how well they are manufactured.”
“Rather than snow accumulating on a cold sidewalk, it falls on one that is always prepared to melt snow. Given Buffalo parameters — how much snow they can get and how quickly they can get it — a system like this helps prepare for just such a scenario.” – Russ Hacker, Comfort Radiant
The system relies on digital sensors to provide precise feedback regarding precipitation and temperature and an automatic control panel that delivers total control of snow melting system set points. VOLUME 16 | WINTER/SPRING 2017 | 07
CASE STUDY GX 850M
Snow never has a chance The temperature setting for the snow melt system in Canalside is 30 degrees, so that anytime the temperature of the concrete dips below 30 degrees and there is moisture on the slab, the digital sensors signal the controllers, located in the basement of a building adjacent to the canals. The controllers act on this information, delivering 50 watts of electricity per square foot to melt snow as it falls on the sidewalk. “With this system in place, snow never has the opportunity to accumulate,” said Hacker. “The slab warms when snow or ice begins to fall in freezing temperatures. This is especially important in areas like Buffalo that can experience one or two weeks of 10- to 20-degree temperatures followed by a sudden warmup and then another snowstorm. Rather than snow accumulating on a cold sidewalk, it falls on one that is always prepared to melt snow. Given Buffalo parameters — how much snow they can get and how quickly they can get it — a system like this helps prepare for just such a scenario.”
Engineering Tomorrow Eliminates Wasted Energy at University Pool Western Oregon University has been recognized as one of the top aquatic fitness programs in the United States. The recently enlarged Health and Wellness Center has also been recognized as one of the country’s best-in-class facilities in terms of design and practices — earning LEED Gold certification. Because of its dual commitment to aquatics and sustainability, the center jumped at the chance to dramatically cut the swimming pool's electricity consumption with two Danfoss VLT® AQUA Drives, which are specifically designed to meet the challenges of water applications.
“With an electric snow melt system, there’s virtually no maintenance after the system is installed, and the Danfoss system comes with a warranty that is unsurpassed in the industry — a 20-year, nonprorated warranty.” System offers aesthetic, maintenance, and safety benefits The city of Buffalo also appreciates a solution that reduces the costs and environmental impact associated with applying chemicals, owning snow clearing machinery, or hiring an outside service. “It’s true that the snow melt system provides real savings in terms of maintenance,” said Sam Hoyt, regional president of Empire State Development Corporation. “It means the city doesn’t have to have people out there shoveling or applying chemicals to melt the snow. And it has aesthetic benefits, too. But the system also offers important safety benefits. With the heated towpaths, we don’t have safety and liability concerns to the degree we would without the system in place. We’ve pretty much eliminated the risks associated with people slipping on icy sidewalks. The beauty is that snow can fall and accumulate elsewhere, but we don’t get accumulation along the sidewalks that are heated.” System passes the test According to Hoyt, Canalside attracted between 55,000 and 70,000 people last winter. “We’d like to build on that success and transform additional parts of the harbor area into 12-month operations,” he said. “We’re very pleased with the way the snow melt system performed for us, and I think we will absolutely consider it — and encourage future developers to consider it — as we move forward with future development.”
The snow melt system uses 8,000 square feet of Danfoss GX mats and cables, 10 digital sensors, and five GX 850 dual zone automatic control panels paired with five electric contactor and timer panels that control each of the system’s five zones.
08 | SOLUTIONS
Having completed the harbor job, Pellerite is ready to do another one, confident he knows how to install the product and what to expect. “Granted, this isn’t something you just take out of the box, lay down, and have concrete poured over it,” he said. “You need to patiently follow the directions Danfoss provides. But if you do that, you’re not going to be disappointed, because this product is going to do exactly what it says it will do. It’s really that simple and that effective.” n
Water is filtered every
hours to meet regulations.
“It's important to keep pool water clean for swimmers and to meet state regulations. At the same time, we want to reduce electricity costs and the carbon emissions associated with producing electricity. That's why we were interested to learn that Danfoss variable frequency drives could dramatically cut the pool's pump energy usage.” – Jake Whisenhunt, Western Oregon Universtity electrician
“Located in Monmouth, Oregon, our school prides itself on teaching swimming skills for lifelong fitness and recreation,” says Jake Whisenhunt, the university electrician who supervised the drive installation project. ”It's important to keep pool water clean for swimmers and to meet state regulations. At the same time, we want to reduce electricity costs and the carbon emissions associated with producing electricity. That's why we were interested to learn that Danfoss variable frequency drives could dramatically cut the pool's pump energy usage." Pumps running at full speed waste energy Whisenhunt got the energy-saving idea from Neal Hershey, director of technical services for Interlocked Filtration Systems, Tacoma, Washington. During a routine service call, Hershey suggested to Whisenhunt that equipping the pool pump motors with variable speed drives could substantially cut electricity costs. “The center's pool is used more for recreational swimming than competition,” explains Hershey. “The pool measures 25 yards long, five lanes wide, and holds 100,000 gallons of water. To meet state regulations, the water is cycled through a filtration system every six hours using a 15-hp inverterrated circulation pump. A smaller spa holds 10,000 gallons, which is cycled every 30 minutes using a 10-hp pump. Together, the pumps use about 14,200 kWh per month at an annual cost of $11,200.” According to Hershey, the original circulation pumps were equipped with soft motor starters only, which reduced both the amperage draw during motor startup and motor wear. “But because the pumps were running full speed at 60 Hz all the time, they exceeded the water turnover rate required by the state. They were wasting energy.” Hershey calculated that the pool could still meet state requirements by running the 15-hp pump at 49 Hz and the 10-hp pump at 47.2 Hz instead of 60 Hz — an average speed reduction of 19 percent. He recommended installing a Danfoss VLT® AQUA Drive for each pump motor.
VLT® AQUA DRIVES SAVE THE CENTER A TOTAL OF $2,750 A YEAR.
Danfoss VLT® AQUA Drives reduce pump motor speed by changing the frequency of electricity supplied to the pump motor. “Reducing pump motor speed (RPMs) decreases power consumption exponentially,” explains Hershey. “Theoretically, according to pump affinity laws, a 50 percent speed reduction would cut energy consumption by 87.5 percent. Of course, we can't cut pump speed by 50 percent; minimum water flow has to be maintained. Nevertheless, with Danfoss variable frequency drives, we can slow the pumps to match the required flow rate. In this case, pump speeds could be reduced an average of 19 percent.” “Energy consumption went down further. In fact, electricity savings were nearly 25 percent. That's because instead of running at 60 Hz and using 14,270 kWh per month, we could run an average of 48 Hz and cut electricity consumption 3,490 kWh per month.” Saving energy during filter regeneration cycles Energy is also saved by taking advantage of the pool filtration system's auto-regeneration feature. “The pool uses a Defender filtration system made by Neptune-Benson,” says Hershey. “As a field technician, I have seen Defender systems
deliver unsurpassed pool water quality. The system also has the ability to control pump function.” The Defender system uses a unique filtration process. Once a day, the system turns on a pump to initiate a 10-minute regeneration process called the “pre-coat” cycle. The pressure induced by the pump causes particles of filter media, typically perlite, to attach to an array of flexible tubes. After 10 minutes, a valve is opened to allow the pool water to enter the filtration chamber, pass through the tubes, and return to the pool sparkling clean. “The Defender system regenerates the media automatically,” Hershey explains. “During the filter pre-coat cycle, the controller uses the ‘jog’ speed feature programmed into the Danfoss VLT® Drive to reduce flow. The filter controller sends a signal to decrease pump speed during the daily pre-coat cycle. During those 10 minutes, the motors run at about 40 Hz. It's not a long time nor a huge speed reduction, but the savings add up.” By reducing speed to match the general flow rate and the pre-coat cycle requirements, the Danfoss VLT® AQUA Drives save the center a total of $2,750 a year. As a result, the payback period for the variable frequency drive retrofit project was under two years. Easy energy savings plus improved pump performance Integrating the Danfoss VLT® AQUA Drives with the filtration system’s controls was easy. Hershey wired the drive to the Defender's flow meter using the system’s 4–20mA 0–10 VDC analog output. Factory-installed fused disconnects eliminated the need for additional disconnect boxes. Both drives were calibrated using the Automatic Motor Adaption (AMA) feature, which was accessible through the Danfoss VLT® AQUA Drive’s menu. “The AMA function optimizes the drive settings to the actual motor,” explains Hershey. “It compensates for tolerances in the motor and the motor cable's electrical characteristics.” There were operational benefits for Whisenhunt as well. “In addition to ramping pump motor speed up and down, the variable frequency drives gave us a convenient remote start/stop feature,” he says. “For safety, a ‘no flow’ detection feature uses relay contacts to ensure no chemicals are fed into the pool water if the drive goes offline. Plus, everyone noticed that, with the Danfoss VLT® AQUA Drives, the motors are running much quieter than before.” Whisenhunt also appreciates that Danfoss VLT® AQUA Drives circuit boards are sealed against the corrosive effects of chlorine. The internal cooling system separates the electronics from the air flow to protect the system from particles and aerosols. Protected by a rugged NEMA 4X housing, the drives are also slightly smaller than the original soft start equipment, providing more space in the pump room. According to Whisenhunt, the Danfoss VLT® AQUA Drive installation is delivering the problem-free, energy-efficient performance he was counting on. “When Neal presented the idea that Danfoss drives could save energy and be easy to operate, I knew we had to dive in. The variable frequency drive retrofit project is a great complement to our Health and Wellness Center's clean, green reputation.” n
VOLUME 16 | WINTER/SPRING 2017 | 11
Engineering Tomorrow Optimizes Convenience Store Performance California drivers who pull into Chevron and Texaco stations to fill up on gasoline can also grab goodies from the stations' ExtraMile or other convenience stores before traveling over the Golden State's legendary highways. Operating seven days a week, these convenience stores constantly run refrigeration equipment to help ensure food quality for the traveling public.
Smart energy and food safety control.
That’s why Chevron turned to Danfoss for advanced energy management technology to enhance equipment and building performance and reduce electricity usage for its company-owned-and-operated stations. “We’re always looking for opportunities to help save energy and demonstrate environmental responsibility,” says Kent Cowan, Chevron small capital projects manager. “That commitment drives us to take advantage of opportunities to improve equipment and building performance. Inspectors routinely check to make sure food is at the right temperature in our coolers and refrigerated cases. Our stores do a great job managing that, but we had a need for advanced technology and tools that could help us monitor the temperatures.” Controlling energy and food quality takes smart management Among U.S. oil companies, Chevron is one of the few integrated oil and gas companies that owns and operates a retail network of motor fuel stations with convenience stores. Doing business in California under the ExtraMile brand, each store typically has between 500 and 1,800 square feet of consumer display area. An open-air HydraZone merchandiser in the center of the store contains cool beverages. Walk-in coolers in the back and refrigerated display cases along the wall are also common.
“Our Operations group aims to bring a high level of quality and efficiency to our stores,” says Cowan. “To help deliver even greater energy savings and uptime on refrigerated equipment, we embarked on a multi-store retrofit.” According to Cowan, Chevron was interested in a comprehensive refrigeration, lighting, and HVAC management solution. “For walk-in coolers and refrigeration units that have remote-condensing units on the rooftop, we monitor both temperature and control system operation. For selfcontained units — like our deli cases or our beverage HydraZone cases, we just monitor temperature. “We also wanted a system that could monitor walk-in cooler doors and control the anti-sweat warmers on display case doors. Finally, we needed space heating and air-conditioning control, along with a night setback for the store and the walkin cooler when doors are opened less frequently in the evening.” Staged implementation ensures success A pilot store was selected to test an energy management system (EMS) that could satisfy all the stakeholders. The selected EMS was based on Danfoss System Manager technology. According to Greg Hankins, Danfoss senior account manager, “The test store basically had a walk-in cooler and the same number of self-contained coolers or freezers we would see on a typical sales floor. There’s a bit of variation from store to store, but it's pretty much a standard c-store footprint.” “Our web-based system manager is the key component of the intelligent Danfoss refrigeration system for food retail,” says Hankins. “The system manager has the flexibility of coordinating data to and from the individual refrigeration and HVAC controllers, including temperature data for logging, alarm monitoring and notification, and intelligent lighting control.” In a typical store installation, specific system components include the Danfoss AK-CC 210 for controlling the walk-in cooler, the HydraZone merchandiser, deli cases, and other fixtures with remote condensing units. Temperature sensors are installed in
all units, including a door switch and alarm for walk-ins. Compressors and defrost are controlled through the AK-CC 210 as well. For HVAC control, the Danfoss MCX08M programmable controller is installed on each HVAC rooftop unit. The MCX can operate on a standalone basis due to its onboard intelligence or through the system manager. All related sensors are then wired into the MCX controller. The MCX then communicates to the Danfoss system manager via Modbus. After the success of the test pilot store, the implementation was tweaked and rolled out to a first-phase implementation of 50 ExtraMile stores. “We currently use the Danfoss AK-SM 820 System Manager as the central EMS platform,” notes Hankins. “It’s designed for food retail customers who want to achieve significant energy savings. It also uses a mix of controller and patented AK-SM 820 optimization techniques and logic that ensures food safety. The new AK-SM 800 series controllers provide the next step in world-class control, ease of use, and connection to the enterprise layer.”
VOLUME 16 | WINTER/SPRING 2017 | 13
Successful EMS implementation requires teamwork and training Cowan notes that an EMS implementation not only requires advanced technology, it also takes expert support from the manufacturer who is providing the solution. “Team support is an integral piece to making this whole thing work,” observes Cowan. “Chevron stresses safety and zero incidents on all work projects. So having a high level of communication between all parties is essential to our success.” In 2015, Chevron had zero refrigeration-related accidents at its company-owned-andoperated locations for the year. All participating contractors — including Danfoss — received an award for zero accidents. As the installation was being rolled out, the project facilitator and contact point for Danfoss was Kenny Yamamoto, Danfoss incentives manager.
Yamamoto and his team also helped identify rebates and utility incentives offered by the respective electric utility — amounting to about $700 per site. Calculations for the initial 50-store implementation show average power reductions of 8 percent, which translated to significant cost savings as utility rates rose during that period. The new EMS also enables Chevron to be more proactive in how food temperature is controlled in the store. An EMS dashboard was created that lets Chevron see all of the stations online and observe any alarms or temperature conditions. The tool makes it easy to collaborate between Cowan’s staff, Danfoss, and contractors in the field, as needed. “For example, if there’s something unusual, the Danfoss point person can provide an analysis before our call center dispatches a contractor,” explains Cowan. “That way, contractors can avoid wasting time on the job. And if they’re on-site and have questions, they can get feedback and data in real time.” “Nobody wants the ice cream to melt,” says Cowan. “With a remote EMS capability, our store managers were initially concerned that they no longer have responsibility for that thermostat on the wall. Somebody else is controlling the temperature of the store.”
“But they quickly realized it’s just one less thing they have to worry about. We handle monitoring and control remotely. The manager knows the equipment is being monitored professionally, and they have complete contact by phone. If there’s a door left open or an alarm is going off, the store gets a call — usually before a technician gets dispatched.” Following the successful EMS rollout, Chevron will complete an additional 150 sites by the end of 2016. n
Danfoss Recognized for Innovation Danfoss has again been recognized by a panel of ASHRAE members in the 2017 AHR Expo Innovation Awards program. Danfoss Enterprise Services and Danfoss CTM Multi-Ejector both won top honors in the building automation and refrigeration categories, respectively. In the green building category, the Danfoss Turbocor® TG compressor was named an honorable mention. Danfoss has now been recognized 26 times over 14 years of the program’s history. Winner: Danfoss Enterprise Services As the winner in the award competition’s building automation category, Danfoss Enterprise Services is a cloud-based service delivery platform tailored to supermarket and other food-retail applications that collects a range of data points from connected devices to provide powerful insight into nearly every aspect of HVACR operations, energy management and usage, benchmarking, and food safety. Danfoss Enterprise Services provides real-time, actionable information to monitor equipment alarms, compressor status, leak detection, food temperatures, and refrigerant levels. Other services are also available for energy baselining and benchmarking usage, demand response, and remote assist to promote maximized energy efficiency and savings, while helping to troubleshoot and adjust overall HVACR system functions. This service helps facility personnel, store owners, and management make fast decisions to maximize energy efficiencies and cost savings, optimize food safety, and reduce environmental footprint by utilizing connected devices and data. For more information: http://food-retail.danfoss.com/products/danfoss-enterprise-services
Winner: Danfoss CTM Multi-Ejectors
“Inspectors routinely check to make sure food is at the right temperature in our coolers and refrigerated cases. Our stores do a great job managing that, but we had a need for advanced technology and tools that could help us monitor the temperatures.” – Kent Cowan, Chevron
An electrically controlled multi-ejector designed specifically for the warm climate operation of transcritical CO2 systems in commercial refrigeration applications, the Danfoss CTM multi-ejector was named the winner in the competition’s refrigeration category. Capable of recovering energy while controlling the high pressure of the transcritical application, the Danfoss CTM multi-ejector delivers value to the application through significant improvements in energy efficiency — 20 percent or more are achievable in the warmest ambient conditions. This is accomplished by employing energy recovered from the gas cooler and transferring it to increase the pressure of gas being compressed by parallel compressors, thus reducing overall compressor load. As the first commercially viable solution engineered to overcome energy penalties associated with operating transcritical CO2 systems in high ambient temperatures, the CTM multi-ejector also eliminates the need for redundant cascade refrigeration systems — making transcritical CO2 systems more efficient than HFC systems in any climate zone.
2017 AHR Expo Innovation Awards (Continued) Honorable Mention: Danfoss Turbocor® TG compressors As an honorable mention in the program’s green building category, Danfoss Turbocor® TG compressors are the first oil-free, variable speed, magnetic bearing centrifugal compressors to operate with refrigerants that have an extremely low global warming potential. Designed for air- and water-cooled chillers ranging from 40 to 500+ tons when manifolded or used in multiple circuits, the Danfoss Turbocor® TG compressor series provides optimum energy efficiency at full and part loads in a compact and lightweight footprint. Originally introduced with environmentally-friendly HFO1234ze, the TG series includes compressor capacities ranging from 40 to 150 tons and also accommodates new refrigerant blends, allowing customers to meet their exact flammability and capacity requirements while still providing a reduced GWP solution. As part of the Danfoss Turbocor® family, the TG compressor series combines the efficiency, sound, and maintenance benefits of all Turbocor® compressors with a future-proof alternative for chiller systems that addresses both energy efficiency and refrigerant regulations and standards. For more information: http://airconditioning.danfoss.com/products/compressors/TG
is making less energy more powerful Meeting new energy efficiency standards means getting more out of less — without compromising performance or reliability. From improving part-load efficiency and reducing energy consumption to optimizing equipment reliability, Danfoss engineers innovative solutions that can help you meet performance demands, standards, and regulations. Discover how we’re Engineering Tomorrow at danfoss.us
energy saving potential in today’s buildings and industrial processes.
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Calendar of Events MARCH International Fluid Power Exposition March 7–11, 2017 Las Vegas, NV
MAY Offshore Technology Conference May 1–4, 2017 Houston, TX
BuildingsNY March 21–22, 2017 New York, NY
Energy Efficiency Global Forum May 8–9, 2017 Washington, DC
2017 FRACCA Education Conference March 24–25, 2017 Orlando, FL APRIL The Car Wash Show April 4–6, 2017 Las Vegas, NV Booth #2227 The Cooperator Expo New York April 26, 2017 New York, NY Booth #1806
Eastern Energy Expo May 21–25, 2017 Hershey, PA Booth #124 EnVisioneering Symposium May 25, 2017 Washington, DC JUNE ATMOsphere America June 5–7, 2017 San Diego, CA Global Cold Chain Expo June 13–15, 2017 Chicago, IL 2017 New England Fuel Institute Expo June 14–15, 2017 Worcester, MA IDEA 2017 June 26–29, 2017 Scottsdale, AZ
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