Energy Efficiency in Steam Distribution System

• Repair steam leaks to minimize avoidable loss of steam
• Minimize vented steam to minimize avoidable loss of steam
• Ensure that steam system piping, valves, fittings, and vessels are well insulated to reduce energy loss from piping and equipment surfaces
• Implement an effective steam-trap maintenance program to reduce passage of live steam into condensate system and promotes efficient operation of end-use heat transfer equipment
• Isolate steam from unused lines to minimize avoidable loss of steam and reduces energy loss from piping and equipment surfaces
• Utilize backpressure turbines instead of PRVs to provide a more efficient method of reducing steam pressure for low pressure services
• Optimize condensate recovery to recover the thermal energy in the condensate and to reduce the amount of makeup water added to the system, saving energy and chemicals treatment

References

US Department of Energy (2004), Improving steam system performance: A source book for industry

Bureau of Energy Efficiency, 2010 Guidebook for National Certification Examination for Energy Managers and Energy Auditors: Book 2

Asian Productivity Organization, 2010 Training Manual on Energy Efficiency for Small and Medium Enterprises

Nepal Energy Efficiency Programme, 2012-2016, Investment Grade Energy Audits