Boiler Blog | Nationwide Boiler Inc.

Nationwide Boiler news and events, industry updates, technical information, and more. You hear it first on The Nationwide Boiler Blog!

Seven Immediate Energy Saving Ideas

1    Operate Boilers At or Close to Design Capacity. This decreases fuel consumption per unit of production and can result in an estimated energy savings range of 1 percent to 5 percent.  Likewise, if your facility or plant requires excess capacity, visit the Nationwide Boiler website to obtain a current list of boilers for rent or for sale.  Nationwide Boiler provides new and used boilers that can ship immediately, anywhere around the world (conditions apply, contact Nationwide Boiler for details).
2    Reduce Combustion Excess Air. Measure and control air-fuel ratio or oxygen and carbon monoxide content of flue gases from process heating equipment such as furnaces, ovens, and boilers for the entire range of operation. This has an estimated energy savings range of 2 percent to 15 percent. Think about installing a standard low NOx / low excess air burner (compared to an ULN / high excess air burner) on your boiler.  Complemented with a Nationwide CataStak™ Selective Catalytic Reduction System (SCR), a new burner retrofit and SCR installation will not only provide immediate energy savings, but will also reduce NOx emissions and decrease your carbon footprint.
3    Clean Heat Transfer Surfaces. Cleaning heat transfer surfaces lowers flue gas temperature and increases efficiency by improving heat transfer. Doing so can save an estimated 1 percent to 5 percent at a moderate cost.
4    Reduce Radiation Losses from Openings. Reducing radiation losses can save an estimated 1 percent to 2.5 percent at a relatively low cost.
5    Use Proper Oven, Furnace or Boiler Insulation to Reduce Wall Heat Losses. Reducing wall losses produces energy savings of 1 percent to 2 percent with only a moderate investment.
6    Insulate Steam Lines Leaving the Boiler as well as Air- or Water-Cooled Surfaces Exposed to the Oven or Furnace Environment. With an estimated energy savings range of 1 percent to 5 percent, piping insulation can be completed for a moderate investment.
7    Install Air Preheaters or Other Heat Recovery Equipment. This type of equipment recovers available heat from exhaust gases and boiler blowdown and transfers it back into the system by preheating. The potential energy savings range id from 1 percent to 25 percent, depending on process temperatures and other variables.  Consider a Nationwide Boiler EconoStak Economizer or a Heat Recovery (HR) Blowdown Pak to recover valuable heat that can be reused, allowing you to save money in the long-term.

Adapted from Process Heating Magazine, March 21, 2012.

  3683 Hits
  0 Comment
3683 Hits
0 Comment

10 Tips to Improve Boiler Efficiency

The need to operate a boiler efficiently in today's environment and competitive landscape is at the top of many plant owners and operators list. Unfortunately operating a boiler efficiently while meeting local emission regulations do not always go hand in hand. However, advances in boiler system design and low NOx technology solutions have made this a much more achievable task.

The list below includes 10 tips which can instantly improve overall boiler performance and sustainability, helping to achieve more cost-effective maintenance and operations of your steam system.

This list, along with general guidelines for each, will be published in an upcoming issue of Process Heating magazine. Please email Nationwide if you are interested in obtaining a copy.

1.    Reduce Excess Air

2.    Install an Economizer

3.    Install a Condensing Economizer

4.    Upgrade to VFD Fan Controls

5.    Install a Selective Catalytic Reduction System (SCR) with a Standard Low Excess Air/No FGR Burner

6.    Perform Proper Water Treatment

7.    Reduce Boiler Pressure

8.    Consider Boiler Blowdown Heat Recovery

9.    Upgrade to a High Turndown Burner & Controls

10. Implement an Energy Efficiency Program
  3943 Hits
  0 Comment
3943 Hits
0 Comment