Boilers
Navigating an Energy Audit
Maintaining an optimized boiler system extends the life of equipment and significantly reduces facility operating costs. In many cases, the path to an optimized boiler system begins with an energy assessment....
Pulse-Combustion Boilers Reduce Condo's Electrical Consumption
Prior to the winter of 2009-2010, a 37-year-old, 250-hp boiler provided heat to The Lauren, a 168-unit condominium in Washington, D.C. According to Project Manager Walter Krolman, the unit functioned well, delivering plenty of heat throughout the 10-story building. However, Krolman questioned the boiler's efficiency....
Flood Prompts Med Center's Search for Permanent Source of Steam
Mercy Medical Center chose to install six EX-300 gas/oil high-pressure steam boilers for its heating, sterilization, and humidification needs. Natural gas is the boilers' primary fuel, with oil providing backup, as required for medical facilities....
Optimizing Efficiency with Multiboiler Systems
With the current strong emphasis on energy conservation, there is a great deal of interest not only in selecting the most energy-efficient products, but properly applying them to obtain the greatest energy savings. Multiple-boiler systems are very helpful in achieving this goal. ...
Reducing Hospital CO2 Emissions With Condensing Boilers
In the United States, hospitals consume 836 trillion Btu of energy annually. In the process, they emit more than 30 lb of carbon dioxide (CO2) per square foot, more than 2.5 times the amount commercial office buildings emit. This represents 7 percent of total U.S. CO2 emissions (6,103 million metric tons CO2 equivalent).1 This article examines the effect of using condensing boilers as a means of reducing hospital CO2 emissions. ...
The Quest for Maximum Boiler-System Efficiency
When it comes to maximizing the efficiency of a boiler system, the Holy Grail is precisely matching the output of the system to the load in the building. Fortunately, new technologies and new ways of controlling water flow through the system are making this goal more achievable than ever before. ...
The Advantages of Higher Boiler Turndowns
This article will focus on boiler hydronic heating systems. There are many different types of hydronic systems; however, they all are made up of the same basic components, such as pumps, coils, control valves, and boilers. This article will discuss how boiler turndown can improve the interactions among many of these components to create a more stable and reliable heating system....
Boiler Combo Helps Manufacturer Achieve Cost and Flexibility Goals
At Veyance Technologies' 1-million-sq-ft plant in Lincoln, Neb., where rubber power-transmission products are made, three outdated gas- and oil-fired boilers used for both production and climate control were in need of replacement....
Variable-Frequency Drive Improves Boiler Operation
At the University of Rochester in northwestern New York, a utility cogeneration plant provides electricity, steam, hot water, and chilled water to several internal customers, including the 154-acre, 158-building River Campus—the university's main center of learning—and the 750-bed Strong Memorial Hospital....
Boilers Helping to Usher in New Age of Hydronics
Is the United States on the verge of a new age of hydronics? Smarter and more energy-efficient hydronic technology similar to what has evolved in Europe over the last several decades is getting a new look from system designers seeking to design larger buildings to new environmentally conscious standards. With technology, fewer materials are required for HVAC-system performance, and less energy is consumed during operation. ...
Boiler Allows Garage Owner to Save $7,000 a Year on Heating Costs
Faced with mounting heating bills, Marc Davis, owner of Marc’s Garage in Cambridge, Wis., made an important decision. In 2003, as part of the construction of a new eight-bay garage, he invested in a Clean Burn boiler to recycle the 3,500 gal. of waste motor oil generated by his business each year....
Office-Tower Hydronic Update
Melvin Cohen and Associates Inc. was chosen by the State of Illinois Capital Development Board to prepare design documents for bid and construction, and Primera Engineers in Chicago was chosen to provide commissioning for hydronic update on the Michael A. Bilandic Building....
Absorption-Heat-Pump/Boiler Systems
Condensing gas-fired hydronic boilers have become increasingly popular in commercial heating applications during the last 20 years. Several models of condensing boilers now have thermal efficiencies approaching 100 percent at low firing rates and return-water temperatures. However, the 100-percent level remains the fundamental efficiency limit for hydronic heating systems in the commercial-buildings sector....
Special: A Closer Look at Transport-Membrane-Condenser Technology
An upgrade to industrial and commercial high-pressure steam boilers, a transport-membrane-condenser (TMC) system enables the capture, recovery, and re-use of all sensible and latent waste heat, as well as water vapor from exhaust/flue gas. ...
Understanding the Industrial Boiler MACT Rule
Section 112 of the Clean Air Act requires national emission standards for HAPs. The emission standards must reflect application of the maximum-achievable control technology (MACT). The EPA is tasked with developing MACT emission rules for specific industry groups, such as industrial, institutional, and commercial boilers....
B100 Makes the Grade
Brookhaven National Laboratory (BNL) and Fulton Heating Solutions recently completed laboratory testing of a 2-million-Btuh-capacity hydronic condensing boiler that uses pure biodiesel (B100) fuel. The project proved that B100 successfully can replace traditional fossil fuels, such as natural gas, when used in properly designed and operated heating equipment....
The Growing Role of Technology in Boiler Inspection
Technology has had a direct impact on the boiler industry's heavy reliance on accurate data collection and tracking. Municipalities and jurisdictions from coast to coast are turning to software applications to better record, store, and track data. What once was the domain of pens and paper quickly has turned to computers, databases, personal digital assistants, and the Internet....
Evaluating Deaerator Operation
Every boiler plant has a deaerator that generally gets little or no attention until it jeopardizing the entire steam system. These incidents can be expensive...
Boiler Turndown Revisited
In the June 2002 issue of Boiler Systems Engineering, we wrote an article titled Boiler Turndown. Contrary to conventional wisdom, the article stated...
For University, History Repeats Self, as Boilers Save Money and Energy
In 2001, the University of North Texas (UNT) decided to replace Wooten Hall's original steam boilers, which served as the main junction of a four-building...
Finding Energy Savings With a Biomass Boiler
The story has become increasingly common in the current economic climate: An organization must address its aging infrastructure and building equipment while trying to manage ever-tightening operating budgets. ...
Money-Saving Burner Retrofits
If your boiler/burner package is like the more than 200,000 commercial- and industrial-boiler packages currently in operation, it probably is more than 20 years old. It most likely is only 60- to 70-percent efficient, and large amounts of fuel and associated cash are wasted with every minute the equipment is operated....
Anatomy of a Package-Boiler Project
Primarily shop-assembled and shipped by rail, truck, or barge to their final destination, today's industrial-class watertube steam boilers often are called...
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