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Establishing a Maintenance Program For Plant Efficiency And Energy Savings
Published in Albert Thumann, Scott Dunning, Plant Engineers and Managers Guide to Energy Conservation, 2020
Many existing plants remove condensate from steam lines by using tubing connected to the steam piping and discharged directly to the atmosphere. Figure 10-1 shows the loss of steam through a hole. Thus, all steam leaks, whether purposeful or not, should be avoided. A steam trap permits the passage of condensate, air, and noncondensible gas from the steam piping and equipment while preventing (trapping) the loss of steam. Air and noncondensible gases are undesirable in steam systems because they act as insulating blankets and reduce the equipment efficiency. Therefore, the use of steam traps is a must. Steam traps should be properly sized and maintained. An oversized or poorly functioning steam trap causes steam to be wasted.
Energy Management
Published in Albert Thumann, D. Paul Mehta, Handbook of Energy Engineering, 2020
To insure that a steam trap is not stuck open, a weekly inspection should be made and corrective action taken. Steam trap testing can utilize several methods to insure proper operation: Install heat sensing tape on trap discharge. The color indicates proper operation.Place a screwdriver to the ear lobe with the other end on the trap. If the trap is a bucket-type, listen for the click of the trap operating.Use acoustical or infrared instruments to check operation.
Maintenance and Energy Audits
Published in Albert Thumann, Terry Niehus, William J. Younger, Handbook of Energy Audits, 2020
Albert Thumann, Terry Niehus, William J. Younger
To insure that a steam trap is not stuck open, a weekly inspection should be made and corrective action taken. Steam trap testing can utilize several methods to insure proper operation: Install heat sensing tape on trap discharge The color indicates proper operation.Place a screw driver or more sophisticated acoustical instrument to the ear lobe with the other end on the trap. If the trap is a bucket-type, listen for the click of the trap operating.
Energy efficiency analyses in a Turkish fabric dyeing factory
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2021
Steam traps are devices that hold the vapor, avoid vapor loss by evacuating air, gas, and condensate automatically from the system. For efficient operation of the steam systems, well-designed steam traps, and regular control and maintenance of the traps are required. Approximately 10% of the 112 traps are determined defective as a result of the energy audit carried out at the factory. Regular checking and maintenance can ensure to remain the number of defective traps about 1%. The average leakage amount was calculated according to 15.1 kg/hour leakage for the DN15 medium pressure level (5–10 bar) floating type steam traps for 8000 hours of annual working time (Enve, 2017). Therefore, the installation of steam traps on steam lines provided approximately 8 TOE/year energy saving. Moreover, necessary precautions are taken by training the operators to prevent steam losses in steam traps.
Water Conservation Equals Energy Conservation*
Published in Energy Engineering, 2018
Steam traps are ubiquitous in commercial and industrial buildings that utilize steam for process heating or space heating. When working properly, steam traps release condensate and gases, while retaining the steam. When steam traps fail open, they discharge live steam along with the condensate and gasses. Failed open steam traps not only waste water and natural gas, they also can negatively affect the steam quality, potentially damaging downstream equipment. When steam traps fail closed, condensate will fail to drain, potentially causing dangerous water hammer. If the carbon dioxide gases fail to properly vent, carbonic acid (HCO3) may form, which can deteriorate metal. Whether steam traps fail open or closed, boiler operations can also be negatively impacted, and potential safety hazards may appear.