2014-10-07

Energy conservation opportunities in steam system

  • Use back pressure steam turbines to produce lower steam pressures.
  • Install PHE based hot water system in place of direct steam injection system
  • Ensure that piping, valves, fittings and vessels are well insulated.
  • Use more-efficient steam de-superheating methods.
  • Optimize the deaerator vent rate.
  • Ensure process temperatures are correctly controlled.
  • Maintain lowest acceptable process steam pressures.
  • Reduce hot water wastage to drain.
  • Clean boiler heat transfer surfaces on regular intervals.
  • Install pressure reducing station for low steam pressure.
  • Remove or blank off all redundant steam piping.
  • Replace non working line steam traps.
  • Improve water treatment to minimize boiler blow down.
  • Ensure condensate is returned or re-used in the process.
  • Preheat boiler feed-water.
  • Isolate steam from unused lines.
  • Recover energy from boiler blowdown.
  • Minimize excess combustion air.
  • Use high pressure condensate to make law pressure steam.
  • Check operation of steam traps.
  • Remove air from indirect steam using equipment.
  • Inspect steam traps regularly and repair malfunctioning traps promptly.