Steam hot service insluation thicknesses, Mechanical Engineering

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Q. Steam Hot Service Insluation Thicknesses?

Steam Hot Service Insluation Thicknesses are specified based on the following design criteria:

  • Average Annual Climatic Conditions: Fort McMurray, Alberta
  • Straight payout period: 5 years
  • Heat Loss Calculation Program: North Am. Ins. Manufacturers Ass. 3E Version 3.2
  • Hours of operation: 39420 (90% of number of hours in 5 years)
  • Bare surface emittance : 0.8 emittance Steel
  • Outside surface emittance: 0.1 Aluminum
  • Energy conversion efficiency: 80% for Steam Hot Service
  • Fuel type: Natural gas
  • Fuel heat content: 0.0382 GJ/m³
  • Fuel cost:  $5/GJ
  • Pipe and Insulation dimensions per ASTM C  585
  • Yearly outdoor ave. amb. Temp.:  0.2°C (32.4 °F)
  • Yearly outdoor ave. wind vel.:  10 km/h
  • Indoor ave. Temp.:  15ºC
  • Indoor ave. wind vel.:  0 km/h

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