Using Steam Accumulators to Satisfy Fluctuating Boiler Steam Demand

  • 1 décembre 2020
  • Author: Jeff Lazor
  • Number of views: 2523
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Using Steam Accumulators to Satisfy Fluctuating Boiler Steam Demand

Modern boiler plants are increasingly focused on energy efficiency, reducing their physical footprint, as well as minimizing capital and installation costs. Companies are striving to keep their total cost of operation as low as possible to remain competitive in the global economy. One of the challenges is having a steam supply that can handle large variations in demand. If the boiler is too small to handle peak demands, the plant cannot operate as designed. If the boiler is sized to handle short bursts of steam, the boiler may be oversized and have higher energy input versus output due to lower efficiencies at lower loads.

All About Deaerators

The Often Overlooked and Undervalued Boiler Protectors

  • 10 décembre 2019
  • Author: James McDonald
  • Number of views: 2927
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All About Deaerators

Steam boilers do exactly as their name implies, they produce steam; however, may factors must be considered and managed to do this, including corrosion, scale, water minimization, fuel efficiency, safety, and Total Cost of Operation. Boiler feedwater often contains dissolved gases, such as oxygen, carbon dioxide, and ammonia. These dissolved gases are problematic for the boiler system because they may cause corrosion, leading to equipment failures (e.g., carbon dioxide can form carbonic acid in boiler condensate, lowering the pH, and corroding the condensate piping). To minimize corrosion, the dissolved gases must be removed or neutralized. This can be achieved through the use of deaerators, which work to remove such dissolved gases to low levels reducing the amount of follow-up neutralization required (e.g., sulfite-based oxygen scavenging).

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