10/13/2005

Increase the Efficiency of Fuel-Fired Furnaces with Waste Heat Recovery Systems

Find out how and why to install a heat recovery system in your building

Contributors: James Earl  
 

The Energy Efficiency and Renewable Energy office of the U.S. Department of Energy (DOE) highlighted the benefits of waste heat recovery systems in the Process Heating Tip Sheet #8. Through the Industrial Technologies Program, the DOE strives to help some of the country’s largest energy consumers improve energy efficiency. The September 2005 installment of the Process Heating Tip Sheet defines how the spent combustion gases from fuel-fired heating equipment that still holds considerable thermal energy can be captured via a heat recovery system. The result is energy savings.

According to the Tip Sheet, the following are benefits to waste heat recovery:

  • Improved heating-system efficiency. Energy consumption can typically be reduced by 5 to 30 percent.
  • Lower flue gas temperature in chimney. Less heat is wasted.
  • Higher flame temperatures. Combustion air-preheating heats furnaces better and faster.
  • Faster furnace start-up. Combustion air-preheating heats furnaces faster.
  • Increased productivity. Waste heat used or load preheating can increase throughput.

The Tip Sheet also identifies and explains the three most common heat recovery methods: preheating combustion air, steam generation and water heating, and load preheating.

The DOE recommends that heat recovery systems be considered if the exhaust temperature is greater than 1,000 degrees F. or if the flue gas mass flow is very large.

To review the Process Heating Tip Sheet #8 in its entirety, visit (www.nrel.gov/docs/fy05osti/38625.pdf).

 

 

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Need portable cooling?

Rent or buy spot coolers from full-service locations nationwide. On call “24/7”. Primary, supplemental or emergency cooling. Atlas Sales & Rentals, Inc., or call (800) 972-6600.

Click here for more info


Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

Bluebeam® Revu® simplifies digital facilities document management from design review to leveraging as-builts, maintenance manuals and O&Ms submittals.

Yaskawa drives offer quality performance for air handlers and cooling towers on the roof to secondary chilled water pumps in the basement

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.


 
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