Q. Hot Service Insluation Thicknesses?
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: 70% for 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