National Academies Press: OpenBook

Variability of Ignition Furnace Correction Factors (2017)

Chapter: Appendix H - Comparison of Burning Profiles for Laboratory 23

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Suggested Citation:"Appendix H - Comparison of Burning Profiles for Laboratory 23." National Academies of Sciences, Engineering, and Medicine. 2017. Variability of Ignition Furnace Correction Factors. Washington, DC: The National Academies Press. doi: 10.17226/24707.
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Suggested Citation:"Appendix H - Comparison of Burning Profiles for Laboratory 23." National Academies of Sciences, Engineering, and Medicine. 2017. Variability of Ignition Furnace Correction Factors. Washington, DC: The National Academies Press. doi: 10.17226/24707.
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Page 100
Page 101
Suggested Citation:"Appendix H - Comparison of Burning Profiles for Laboratory 23." National Academies of Sciences, Engineering, and Medicine. 2017. Variability of Ignition Furnace Correction Factors. Washington, DC: The National Academies Press. doi: 10.17226/24707.
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Page 101
Page 102
Suggested Citation:"Appendix H - Comparison of Burning Profiles for Laboratory 23." National Academies of Sciences, Engineering, and Medicine. 2017. Variability of Ignition Furnace Correction Factors. Washington, DC: The National Academies Press. doi: 10.17226/24707.
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Page 102
Page 103
Suggested Citation:"Appendix H - Comparison of Burning Profiles for Laboratory 23." National Academies of Sciences, Engineering, and Medicine. 2017. Variability of Ignition Furnace Correction Factors. Washington, DC: The National Academies Press. doi: 10.17226/24707.
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Page 103

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H-1 A p p e n d i x H Comparison of Burning Profiles for Laboratory 23

H-2 Typical Default Profile Lab 23 Default Profile Fan 60 Hz Min Temp 0 C Temp 650 C Mass 0 Offset 240 s Time Ref Previous Event Event 9 Fan 50 Hz Fan 60 Hz Min Temp 0 C Min Temp 0 C Temp 700 C Temp 850 C Mass 0 Mass 0 Offset 60 s Offset 120 s Time Ref Previous Event Time Ref Previous Event Event 8 Event 8 Fan 42 Hz Fan 50 Hz Min Temp 0 C Min Temp 0 C Temp 700 C Temp 850 C Mass 0 Mass 0 Offset 150 s Offset 150 s Time Ref Previous Event Time Ref Previous Event Event 7 Event 7 Fan 34 Hz Fan 40 Hz Min Temp 0 C Min Temp 0 C Temp 900 C Temp 850 C Mass 0 Mass 0 Offset 120 s Offset 150 s Time Ref Previous Event Time Ref Previous Event Event 6 Event 6 Fan 30 Hz Fan 34 Hz Min Temp 0 C Min Temp 0 C Temp 900 C Temp 850 C Mass 0 Mass 0 Offset 45 s Offset 150 s Time Ref Previous Event Time Ref Previous Event Event 5 Event 5 Fan 27 Hz Fan 30 Hz Min Temp 0 C Min Temp 0 C Temp 900 C Temp 850 C Mass 0 Mass 0 Offset 45 s Offset 45 s Table H-1. Lab 23 default burn profile.

H-3 Time Ref Previous Event Time Ref Previous Event Event 4 Event 4 Fan 24 Hz Fan 26 Hz Min Temp 0 C Min Temp 0 C Temp 900 C Temp 850 C Mass 0 Mass 0 Offset 0 s Offset 45 s Time Ref Ignition Time Time Ref Previous Event Event 3 Event 3 Fan 22 Hz Fan 22 Hz Min Temp 0 C Min Temp 0 C Temp 900 C Temp 850 C Mass 0 Mass 0 Offset 120 s Offset 0 s Time Ref Previous Event Time Ref Ignition Time Event 2 Event 2 Fan 20 Hz Fan 18 Hz Min Temp 0 C Min Temp 0 C Temp 900 C Temp 850 C Mass 0 Mass 0 Offset 0 s Offset 0 s Time Ref Start Time Time Ref Start Time Event 1 Event 1 Recovery Factor 0.2 Recovery Factor 0.2 Recovery Fan 60 Hz Recovery Fan 60 Hz Recovery Temp 730 C Recovery Temp 750 C Oven Temp 1,000 C Oven Temp 900 C 80 s 80 s 1.4 g/min 1.4 g/min Ignition Criteria Ignition Criteria Idle Fan 22 Hz Idle Fan Control chamber 440C Idle Temp 730 C Idle Temp 850 C Table H-1. (Continued).

H-4 Typical Option 1 Profile Lab 23 Option 1 Profile Fan 60 Hz Min Temp 0 C Temp 650 C Mass 0 Offset 240 s Time Ref Previous Event Event 9 Fan 50 Hz Fan 60 Hz Min Temp 0 C Min Temp 0 C Temp 650 C Temp 850 C Mass 0 Mass 0 Offset 60 s Offset 120 s Time Ref Previous Event Time Ref Previous Event Event 8 Event 8 Fan 42 Hz Fan 50 Hz Min Temp 0 C Min Temp 0 C Temp 650 C Temp 850 C Mass 0 Mass 0 Offset 150 s Offset 150 s Time Ref Previous Event Time Ref Previous Event Event 7 Event 7 Fan 34 Hz Fan 40 Hz Min Temp 0 C Min Temp 0 C Temp 850 C Temp 850 C Mass 0 Mass 0 Offset 120 s Offset 150 s Time Ref Previous Event Time Ref Previous Event Event 6 Event 6 Fan 30 Hz Fan 34 Hz Min Temp 0 C Min Temp 0 C Temp 850 C Temp 850 C Mass 0 Mass 0 Offset 45 s Offset 150 s Time Ref Previous Event Time Ref Previous Event Event 5 Event 5 Fan 27 Hz Fan 30 Hz Min Temp 0 C Min Temp 0 C Temp 850 C Temp 850 C Mass 0 Mass 0 Table H-2. Lab 23 option 1 burn profile.

H-5 Offset 45 s Offset 45 s Time Ref Previous Event Time Ref Previous Event Event 4 Event 4 Fan 24 Hz Fan 26 Hz Min Temp 0 C Min Temp 0 C Temp 850 C Temp 850 C Mass 0 Mass 0 Offset 0 s Offset 45 s Time Ref Ignition Time Time Ref Previous Event Event 3 Event 3 Fan 22 Hz Fan 22 Hz Min Temp 0 C Min Temp 0 C Temp 900 C Temp 850 C Mass 0 Mass 0 Offset 120 s Offset 0 s Time Ref Previous Event Time Ref Ignition Time Event 2 Event 2 Fan 20 Hz Fan 18 Hz Min Temp 0 C Min Temp 0 C Temp 850 C Temp 850 C Mass 0 Mass 0 Offset 0 s Offset 0 s Time Ref Start Time Time Ref Start Time Event 1 Event 1 Recovery Factor 0.2 Recovery Factor 0.2 Recovery Fan 60 Hz Recovery Fan 60 Hz Recovery Temp 675 C Recovery Temp 750 C Oven Temp 1,000 C Oven Temp 900 C 80 s 80 s 1.4 g/min 1.4 g/min Ignition Criteria Ignition Criteria Idle Fan 21 Hz Idle Fan Control chamber 440C Idle Temp 675 C Idle Temp 850 C Table H-2. (Continued).

Next: Appendix I - Proposed Standard Practice for Installation, Operation, and Maintenance of Ignition Furnaces with Commentary »
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TRB's National Cooperative Highway Research Program (NCHRP) Research Report 847: Variability of Ignition Furnace Correction Factors explores the significant influences that affect the variability of asphalt and aggregate correction factors for ignition furnaces. The report presents a proposed practice in American Association of State Highway and Transportation Officials (AASHTO) standard format for installation, operation, and maintenance of ignition furnaces to minimize the variability in correction factors between furnaces.

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