Preferred’s Fuel Oil Handling and Boiler Control Cabinets now have California’s OSHPD Seismic Preapproval. This certification, required by the building code for all hospitals and large nursing facilities in California, verifies the integrity of manufacturer’s equipment and components in event of a seismic disturbance, an earthquake. Through “shake table testing,” Preferred’s boiler and fuel oil handling panels have received the certification that proves its functional ability survive an earthquake and keep your facility running.
Top tier American college chooses Preferred Utilities as their partner in a major burner and controls retrofit project on their existing (700 hp) Johnston Boiler. With the installation of the dual fuel Preferred Utilities API-InjectAire burner, the college will reduce its electric consumption on this unit by more than 75% while increasing combustion efficiency by more than double.
With the new ability to have Low NOx 10:1 turn down on natural gas and 8:1 turn down on oil along with precise draft control, and O2 trim, greenhouse gas emissions will be significantly reduced along with wear and tear on the boiler.
We manufacture in the USA and provide single source responsibility for burners, fuel trains, combustion controls and factory start up.
The PCC-IV loop controller is the next generation of Preferred’s loop controllers AND upgraded technology for the entire industry. The PCC-IV is more flexible, has extensive memory, and not only replaces the Preferred PCC-III, but also can replace the Siemens Moore 352 and 353, obsolete and no longer supported starting October 2017.
Preferred Utilities’s controls are just that- preferred. Consider a case study of a longtime PCC controls customer:
Preferred Utilities has been supporting this facility in New York since 1988 with our PCC II and III loop controllers. This site installed one PCC-IV and is now considering this next generation of upgrade, the PCC-IV, in their plant with four (4) 50kpph boilers, each with steam, gas, and oil flow meters.
In 1988, the facility installed 16 PCC-IIs and 5 control panels, plus field instruments for a burner/controls upgrade. Almost 10 years later in 1997, they updated the system with the purchase and installation of 17 PCC-IIIs. In 2002, they decided to upgrade again and add O2 trim. Satisfied with the Preferred product, they installed 21 of the PCC-III units.
Now, in 2017, the plant installed a PCC-IV in parallel with one of the PCC-III controls to observe the performance and is considering upgrading the rest of the PCC-II and PCC-III controls. With the auto-converting functionality of the PCC-IV, the existing PCC-III programs can be re-used without modification and re-programming.
Preferred Utilities is pleased to offer generations of quality products that age gracefully and come with a pledge of full service support and solutions for upgrades in the future.
A New Jersey paper mill came to Preferred Utilities recently needing a quote for a new burner for their 1961 Preferred Utilities Unit Steam Generator. What is wrong with their existing Preferred burner? Nothing. The plant is being forced to convert from No. 6 heavy fuel oil to natural gas.
Will their next burner last 56+ years? Maybe. It depends on who they buy it from.
Note, Preferred still had the documentation on the existing burner and boiler. But we had to go to 49 year Preferred veteran engineer Ricky Erickson to find it.
This plant needs a Low NOx burner that meets the emissions regulations in New Jersey. Preferred designs and builds burners that can meet the strictest regulations, and provides configurable NOx settings, “future-proofing” them against lower emissions requirements that states may adopt in the coming years.
Built for the environment. Built to last.
Last summer a facility in Texas spilled 3,500 gallons of diesel fuel intended for one of their emergency generators. The fuel was pushed up through a day tank vent, ran across their parking lot, and into a pond adjacent to their property. The clean-up team recovered about 2,100 gallons of fuel out of the pond, but at a cost of about $300,000.
I was called to the site two weeks after the spill and took these pictures of the pond. It’s amazing how resilient nature can be in Texas. The only damage I could see to the pond was browned grass below the waterline. Now, ten months later, the pond appears to have fully recovered.
The generator fueling system for this facility was installed in 2013. From an inspection of the day tanks, all the instrumentation and safety devices met the required NFPA and local fire codes. However, I did not recognize the systems integrator who did the PLC controls. I suspected there was an error in the PLC program exacerbated by a system design that didn’t anticipate something going wrong.
The facility owner brought in a couple of sharp corporate engineers to autopsy the existing controls. They found errors in the PLC programming logic. A level sensor failed, showing a low fuel level in the day tank, so the PLC controls energized supply pumps to re-fill the day tank from the main storage tank. With the level sensor stuck, the PLC controls ignored all the other instrumentation indicating the tank was full, continued pumping fuel, and quickly overfilled the tank. The facility engineers thought the system started pumping fuel at about midnight. Facility staff coming on duty at 7 a.m. smelled diesel fuel, noticed the fuel on the ground, and shut off the pumps.
At first glance, the control sequences for diesel generator fueling systems are not terribly complicated, so local systems integrators are often hired to provide controls for fueling systems. However, to ensure fuel is always available to mission critical emergency generators, and fuel spills are prevented, the Preferred engineers—who specialize in the design of generator fueling systems—try to anticipate every likely failure mode:
–What happens if a level sensor gets stuck?
–What happens if an analog transmitter fails and produces 0 milliamps?
–What should the controls do if a pump fails to prove flow?
–What happens if there is a break in a fuel line, or a tank starts to leak?
–What happens if an operator manually energizes a fuel transfer pump and then goes home?
After supplying so many fueling systems over the years, all of these failures will happen. Regardless of a component failure or operator error, fuel spills are still unacceptable, and the generators still need fuel.
I did boiler controls for twenty years before learning how to design and commission fuel handling systems. NFPA boiler code dictates all the safety devices and sequences required to operate boilers. As a result, at least three separate devices must fail to run the water out of a boiler, or overpressure a boiler. NFPA code for fueling systems is much less specific. In fact, the fuel system that caused the spill at this facility didn’t violate any NFPA fuel handling codes.
In the end, this facility’s Preferred installer and consulting engineer commissioned the new Preferred fuel handling system controls. Commissioning is the process of simulating all the “What happens if…” scenarios described above and verifying the fuel system responds correctly to all imaginable upset conditions.
It’s the last thing we do on every fuel handling project.
David Eoff, BSME, MBA
Preferred Utilities, National Sales Manager
What happened the last time your house lost power? That email you were writing might have had to wait an extra half an hour, and your refrigerator might have warmed a few degrees. At most, ordinary power outages represent a minor annoyance to the home or office.
The situation is different at the massive data centers of the world. Amazon now sells over 600 items per second, and their systems are designed to accommodate up to 1,000,0000 transactions per second. At this scale, a 20 minute power outage at one of the data centers powering its store could cost Amazon millions of dollars in lost revenue.
To avoid this sort of catastrophe, the world’s big data centers strive to meet the Uptime Institute’s “Tier-Standards,” specifying various levels of guaranteed data processing availability, reliability, and redundancy. Meeting these standards requires avoiding single-points of failure — all components must have redundant backups.
One of the most critical components, of course, is the power supply system: without power, the flow of data grinds to a halt. Although massive data centers pull their power from the public electric grid, they must have redundant systems of backup power ready to go. Stored power in batteries is important, but the real backup system is the diesel generator.
Managing the reliability and redundancy of their generator systems is a significant challenge for data centers. It’s an unfortunate reality that components break and systems fail tests. At many data centers, the fuel system supplying the generator will have components from a legion of vendors, not one of whom will understand (or take responsibility for) the whole system. This can make troubleshooting routine systems failures a nightmare.
Working with a company that provides a fully integrated system is essential – from the fuel tanks and pump systems to the monitoring devices and control systems. Therefore if a problem arises, data centers have a single support call to make. A single source contact will understand how the pieces work together and can quickly solve problems. It’s the difference between working with a parts manufacturer with a few engineers on staff, and an engineering design firm that manufacturer’s the parts.
At Preferred Utilities we specialize in fuel systems—it’s what we do all day, every day—we pride ourselves on designing reliable systems that reduce the need for support calls in the first place. Data center engineering teams are generalists and great at looking at the big picture, so when it comes to fuel systems, they often aren’t able to immerse themselves in the details the way our engineers do. We know the code compliance specs, how to make sure the tank size is correct, and how to optimize virtually any scenario to help data centers at all Tier levels to keep the their fuel, power, and data flowing.
If your company or industry requires this kind of technical expertise, you can reach Preferred Utilities Manufacturing Corporation at (203)-743-6741. We are dedicated to your success. People. Products. Results.
Preferred Utilities Provides Power to Abington Memorial Hospital during StormWhen Winter Storm Derby knocked out power across much of Pennsylvania, Abington Memorial Hospital continued operating thanks to emergency back-up generation systems provided by Preferred Utilities Manufacturing Corporation.
Danbury, CT — Power outages caused by Winter Storm Derby forced Abington Memorial Hospital to rely on emergency back-up systems. Thanks to the emergency fuel systems provided by Preferred Utilities Manufacturing Corporation, the outage did not affect care and the hospital remained fully staffed throughout the storm.
Dr. John J. Kelly, hospital chief of staff, told local news, “We’re in good shape.” When most local schools and residential complexes found themselves without power, the Abington Memorial hospital continued its critical mission thanks to its emergency generation back-up plan.
According to NC10.com, PECO Energy, the largest power provider in the Philadelphia region, assessed Winter Storm Derby as the worst winter storm outage ever. At the height of the storm, more than 600,000 customers were without power.
Dr. Kelly explained that the hospital found itself in good shape because it had planned for contingencies during events such as snow storms. In the event of lost power, the hospital knew that it needed an emergency generation system that would work in a time of need—because for a hospital, the availability of electricity can be the difference between life and death.
In order for emergency generators to work properly, they needed a reliable delivery system to keep the fuel oil pumping during emergency situations. Abington Hospital was well
prepared for such an emergency situation thanks to a series of fuel oil products provided by Preferred Utilities, including: underground storage tanks, tank gauges, pump sets, day tanks, and boiler fuel delivery systems.
The underground storage tanks keep large amounts of backup fuel ready in case of emergencies. The pump sets provide fuel to the day tanks, where back-up fuel is ready at all times.
For mission critical applications such as emergency diesel generators and dual-fuel boilers, Preferred recommends that at least four hours-worth of fuel is immediately available via the Day Tank without activating the transfer pumps below. Abington Memorial Hospital utilized such a standby back-up fuel system.
Thanks to these products, Abington Memorial Hospital continued providing critical care to local residents during the storm—and they did so with full confidence that their fuel oil system would work when they needed it most.
Preferred Utilities is the single-source umbrella for all mission critical needs. Services include customized engineering, consultation, installation, and scheduled maintenance.
Products include fuel oil handling systems, boiler equipment, burners, nuclear components, flow modeling services, and more. Our products can be found in commercial, institutional, industrial, and nuclear facilities.
In wake of the September 11th, 2001 terrorist attacks, Preferred Utilities Manufacturing Corporation remembers and mourns the loss of every innocent life lost that day. In an effort to rebuild, Preferred Utilities has designed and delivered new mission critical back-up fuel delivery systems for World Trade Center 3.
Preferred Utilities will play an integral part in the construction of the new World Trade Center project in New York City. Tower 3, which will be completed by 2016, will utilize a customized fuel pump designed by Preferred Utilities Manufacturing Corporation
Tower 3 (or 3WTC) will rise eighty stories and include over 2.8 million square feet of space spread across 53 floors and five base building floors. Office floors will range from 29,000 to 44,000 square feet, and base building floors will include 68,000 square feet of space.
The structure will utilize a reinforced concrete core with an external structural steel frame that will enclose the outer glass shell. Its safety systems will exceed New York City building code and Port Authority of New York and New Jersey requirements, and it will seek to achieve the LEED Gold standard for energy efficiency.
A building as bold as 3WTC requires an extensive backup generation system in case the tower ever loses power. Thanks to Preferred Utilities Manufacturing Corporation, 3WTC will benefit from a customized fuel delivery system that will keep the generators chugging, no matter how long the power goes out.
3 WTC’s custom features include:
- Backup diesel supply (960gph)
- Twin duplex strainers
- Priming funnels
- Position switches on manual ball valves
- 10” touchscreen display with Fuel Sentry.
Preferred Utilities prides itself in providing proven fuel delivery systems to commercial, industrial, institutional, and nuclear facilities.
Since no two facilities are identical, Preferred Utilities Manufacturing Corporation works with customers to design and manufacture customized solutions to meet customer specifications.
Preferred Utilities also provides fuel oil handling systems and components, boiler instrumentation and controllers, high-end burners, and nuclear power plant outage-reduction tools and component parts.
– Preferred Utilities Manufacturing Corporation