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NASA/TM--2002-211787
Promoted Combustion Test
Propagation Rate DataJ. Borstorff, P. Jones, and F. Lowery
Marshall Space Flight Center, Marshall Space Flight Center, Alabama
June 2002
https://ntrs.nasa.gov/search.jsp?R=20020057964 2020-05-08T13:39:24+00:00Z
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NASA/TM--2002-211787
Promoted Combustion Test
Propagation Rate DataJ. Borstorff, P. Jones, and F. Lowery
Marshall Space Flight Center, Marshall Space Flight Center, Alabama
National Aeronautics and
Space Administration
Marshall Space Flight Center
June 2002
TRADEMARKS
Trade names and trademarks are used in this report for identification only. This usage does not constitute an officialendorsement, either expressed or implied, by the National Aeronautics and Space Administration.
Available from:
NASA Center for AeroSpace Information7121 Standard Drive
Hanover, MD 21076 1320
(301) 621 0390
National Technical Information Service
5285 Port Royal Road
Springfield, VA 22161
(703) 487 4650
ii
TABLE OF CONTENTS
1. INTRODUCTION ..........................................................................................................................
2. BACKGROUND INFORMATION ................................................................................................
3. PLAN OF THE EXPERIMENT .....................................................................................................
4. INTERPRETATION OF RESULTS ...............................................................................................
5. CONCLUSION ..............................................................................................................................
APPENDIX A--LOW-ALLOY STEEL .............................................................................................
A.1 CF 4130 .................................................................................................................................
APPENDIX B--NICKEL ALLOYS ...................................................................................................
B.1 Rene 41 ..................................................................................................................................
B.2 Inconel TM 601 .........................................................................................................................
APPENDIX C--STAINLESS STEELS ..............................................................................................
C.1 CRES 15-5PH .......................................................................................................................
C.2 CRES 17-4PH .......................................................................................................................
C.3 CRES 316 CF .........................................................................................................................
C.4 CRES 422 CG Ann ................................................................................................................
APPENDIX D--COBALT ALLOYS ..................................................................................................
D.1 MP35N ...................................................................................................................................
1
1
1
2
2
3
3
5
5
7
9
9
11
13
15
17
17
°°°
111
TECHNICAL MEMORANDUM
PROMOTED COMBUSTION TEST PROPAGATION RATE DATA
1. INTRODUCTION
Combustion propagation rate data were examined for potential use in benchmaxking a thermal
model of the Promoted Combustion Test (PCT) and for potential use in measuring the repeatability of
PCT results. Propagation rates as functions of chamber pressure were compiled both from standard test
records and from detailed examination of PCT videotapes. The results displayed in the data sheets (see
appendices) demonstrate (1) a very weak dependence of propagation rate on pressure and (2) improved
repeatability (reduced scatter) of propagation rate at any pressure when the rate is calculated from
frame-by-frame examination of PCT videotapes.
2. BACKGROUND INFORMATION
Propagation rate data acquired from the PCT are typically calculated by dividing the burn length
(initial length minus final length) of the rod by the time that it took for the sample to burn. This is
referred to as the standard propagation rate. A problem arises in determining the elapsed time of the
bum. Calculation procedures vary from sample to sample and operator to operator due to the difficulty
in judging when the test is complete and thus when to stop the timer. Some technicians wait until there is
no light left in the chamber. Others stop the timer when the last drop of slag has fallen, believing that the
light in the chamber, late in the test, is caused by burning slag in the drip cup instead of combustion on
the rod. Further uncertainty is introduced by variation in the start of the timer. Uncertainty in the calcula-
tion procedure contributes to uncertainty and perceived variation in the recorded propagation rate.
3. PLAN OF THE EXPERIMENT
Recent PCT videotapes were reviewed in an effort to make the propagation rate calculation more
accurate and consistent. Video records of each test were examined in detail. The rod length and time
were noted after every drop of a molten slag ball. The unconsumed rod lengths were measured as con-
tinuous functions of the test run time. Consumed length was plotted against time. The propagation rate
derived from the slope of this line is referred to as the detailed propagation rate. Detailed propagation
rates have been plotted against pressure for eight different materials; these data are shown in the appen-
dices. Detailed propagation rates for several materials axe plotted against pressure (one material per data
sheet),andpowerlawfunctionsaxefit to thedata.Thedensity,thermalconductivity,specificheat,meltingpoint,andcompositionof eachmaterialaxealsorecordedonthedatasheets.Thematerialsaddressedincludeonelow-alloysteel,twonickelalloys,fourstainlesssteels,andonecobaltalloy.
4. INTERPRETATION OF RESULTS
The detailed propagation rates increase with pressure for all but one of these materials, although
this increase is rather slight (proportional to pressure to the power of 0.2 to 0.5). This conclusion would
have been difficult to make if only standard propagation rate data were available, because of the scatterof these data.
Propagation rates calculated by standard (nondetailed) methods, as recorded on the original test
record data sheets, axe also shown in the data sheets in the appendices for comparison. The scatter of the
detailed propagation rates as functions of pressure are much lower than those of the standard propaga-
tion rates. Therefore, it appears that repeatability of PCT results might be better than had been thought,
at least regarding propagation rate.
It should be noted that the detailed propagation rate method is not accurate if the sample does
not drip at least four times. Further, neither the detailed nor the standard propagation rates axe accurate
for materials which self-extinguish immediately after ignition, because the burned length is more a result
of the energy of ignition than of combustion of the material.
5. CONCLUSION
The results acquired from combustion propagation rate data demonstrate a very weak
dependence of propagation rate on pressure, and an improved repeatability of PCT testing.
2
APPENDIX AmLOW-ALLOY STEEL
A.1 CF 4130No. 1886F
Low-Alloy Steel
Composition:Fe= Cr= Mn = C = Mo =Bal. 0.95 0.5 0.3 0.2
Density: 7.83 mg/m3
ThermalConductivity(W/moK):100 °C 300 °C 500 °C 700 °C 1,000°C 1,200°C42.7 40.6 37.3 31.0 28.1 30.1
MeanApparent SpecificHe_ (J/kgo_ (448 J/kgoK@22 °C):50-100 °C 150-200 °C 250-300°0 350-400 °C 450-500 °C477 515 544 595 657
550-600 °C737
Melting Point:1,535 °C
650-700°C825
750-800 °C833
SampleNo.
123456789
10
123456789
10
Pressure
(in)
500500500500500500500500500500
25O25O25O
100
50505050505050505050
BurnLengthRate(in/s)
12.0012.0012.0012.0012.0012.0012.0012.0012.0012.00
12.0012.0012.00
StandardPropagationRate (in/s)
0.28990.28740.29310.29920.27710.31410.28990.28570.28270.2859
0.23410.22370.2346
12.0012.0012.0012.0012.000.14
12.0012.0012.000.20
0.14860.15030.14970.14870.14620.03730.15130.14800.14970.1176
DetailedPropagation(Mpa)
0.29970.31440.34740.34150.33050.36060.34250.33210.36270.3126
0.26250.26080.2798
0.1931
0.16160.16550.18950.16760.1874
xxx
0.17510.18930.1668
xxx
PressureRate
3.4473.4473.4473.4473.4473.4473.4473.4473.4473.447
1.7241.7241.724
0.689
0.3450.3450.3450.3450.3450.3450.3450.3450.345
Detailed
Propagation(ram/s)
7.6117.9858.8258.6758.3969.1598.6998.4359.2127.940
6.6686.6247.107
4.905
4.1044.2044.8144.2564.759
xxx
4.4484.8074.237
xxx
xxx Detailed flame speed was only calculated for samples that exhibited dripping behavior at least four times.
..... Miscellaneous problem.
Note: A material is considered to be flammable if the sample has a burn length >6 in.
3
0.30
DetailedPropagationRateVersusPressureCF4130 Low-AlloySteel
0.25
0.20
0.15
0.10
0.05
R2=0,9606
I I I I I I I I I
50 100 150 200 250 300 350 400 450
Pressure(psi)
500
0.35
StandardPropagationRateVersusPressureCF4130 Low-AlloySteel
0.30
A
0.25
0.20
0.15
0.10
0.05
I I I I I I I I I50 100 150 200 250 300 350 400 450
Pressure(psi)
500
4
APPENDIX BmNICKEL ALLOYS
B.1 Rene 41
Round Bar
Nickel-Based Alloy (Superalloy)
Composition:Ni = Cr =55.0 19.0
Density: 8.25 mg/m 3
Melting Temperature:Liquidus 1,371 °CSolidus 1,232 °C
Co = Mo = Ti = AI =11.0 10.0 3.1 1.5
Specific Heat:492 J/kgoK
368 J/kgoK @ 22 °C
Thermal Conductivity W/moK:
200 °F (100 °C) 10.731,000 °F 17.821,600 °F 23.01
Melting Range: 1,316-1,371 °C
Pressure Burn Length Standard Propagation Detailed Propagation Pressure Detailed Propagation
Sample No. (psi) (in) Rate (in/s) Rate (in/s) (Mpa) Rate (ram/s)
123
4
56
78
910
123
4
56
78
910
1
2
34
56
78
9
10
1,000
1,0001,000
1,0001,000
1,0001,000
1,000
1,0001,000
75O75O75O
75O
5.747.163.25
2.27
2.311.98
0.6412.00
12.007.41
0.721.535.98
12.00
0.37420.35730.3652
0.3424
0.33770.3708
0.28960.3653
0.38620.3837
0.30250.40800.3137
0.3522
75O75O
75O75O
75O75O
500
500
500500
500500
500500
500
500
2.24 0.31112.63 0.3363
1.08 0.22780.76 0.3636
1.67 0.30874.69 0.2963
0.72 0.1748
0.47 0.1464
0.55 0.27360.51 0.2757
0.32 0.22380.85 0.3602
0.95 0.39920.45 0.3061
0.38 0.1792
0.64 0.1260
0.44110.38780.3737
0.4195
0.4181
xxx0.4605
0.41640.4386
0.44150.3845
0.3985
0.42650.3654
0.31500.3978
0.41020.3829
0.3166
0.2844
xxxxxx
xxx0.2764
xxxxxx
xxx
0.3057
6.8956.8956.895
6.895
6.8956.895
6.8956.895
6.8956.895
5.1715.1715.171
5.171
5.1715.171
5.1715.171
5.1715.171
3.447
3.447
3.4473.447
3.4473.447
3.4473.447
3.447
3.447
11.2059.8509.491
10.654
10.619
xxx11.696
10.57711.140
11.2149.765
10.123
10.8349.281
8.00210.104
10.4199.725
8.043
7.224
xxxxxx
xxx7.020
xxxxxx
xxx
7.765
xxx Detailedflame speedwas only calculatedfor samples that exhibited dripping behaviorat least four times...... Miscellaneousproblem.
Note: A material is consideredto be flammableif the sample hasa burn length>6 in.
5
0.50
DetailedPropagationRateVersus PressureRene 41
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
iy__oolaoxo48671
I I I I I I I I I
100 200 300 400 500 600 700 800 900
Pressure(psi)
1,000
0.45
StandardPropagationRate VersusPressureRene41 (NickelAlloy)
A
.m
¢D
=
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
• __-ooo4_x_°_°_I
R2=0'3714 I
I I I I I I I I I
100 200 300 400 500 600 700 800 900
Pressure(psi)
1,000
6
Round Bar HR Pickled
Nickel-Based AlloySpecial Study
Composition:Ni = Cr = Fe =60.5 23.0 14.1
Density: 8.3 mg/m 3 @ 20 °C
Melting Temperature: 1,370-1,400 °C
B.2 Inconel TM 601
AI=1.35
Sample No.
12
34
56
78
9
10
12
3
456
7
89
10
1
23
45
67
89
10
1
23
45
67
8
910
Pressure
(psi)
3,000
3,000
3,0003,0003,000
3,000
3,0003,000
3,0003,000
1,0001,000
1,0001,000
1,0001,000
1,0001,000
1,0001,000
75O
75O75O
75O75O
75O75O
75O75O
75O
5OO
5OO5OO
5OO5OO
5OO5OO
5OO
5OO5OO
Burn Length
(in)
Standard Propagation
Rate (in/s)
12.0012.00
12.0012.00
12.0012.00
12.0012.00
12.00
12.00
5.857.10
4.90
12.005.423.65
4.52
0.210.35
4.70
0.40
0.314.58
0.394.57
12.003.40
3.750.37
0.42
0.43
0.240.45
0.290.20
0.330.33
1.35
0.230.27
0.39960.4011
0.40440.4038
0.41050.4034
0.39970.4050
0.3946
0.3946
0.32230.3321
0.3574
0.34460.38000.3174
0.2960
0.21000.3398
0.2673
0.3704
0.15350.3205
0.15480.3365
0.40660.3757
0.31070.3663
0.2069
0.4135
0.32000.4167
0.28160.1923
0.33000.3300
0.2689
0.22120.2673
Detailed Propagation
Rate (in/s)
0.56750.5524
0.44730.5704
0.5141
0.47620.5361
0.4814
0.5391
0.46420.4515
0.4136
0.47160.45230.3624
0.3867
xxxxxx
0.4320
xxx
xxx0.3779
xxx
0.3931
xxx0.3493xxx
xxx
xxx
xxxxxx
xxx
xxxxxx
xxx0.3036
xxx
Pressure
(Mpa)
20.6820.68
20.6820.68
20.6820.68
20.6820.68
20.68
20.68
6.896.89
6.89
6.896.896.89
6.89
6.896.89
6.89
5.17
5.175.17
5.175.17
5.175.17
5.175.17
5.17
3.45
3.453.45
3.453.45
3.453.45
3.45
3.453.45
Detailed Propagation
Rate (ram/s)
14.41514.031
11.36114.489
13.057
12.09513.618
12.228
13.692
11.79111.468
10.504
11.97811.487
9.205
9.822
xxxxxx
10.973
xxx
xxx9.599
xxx
9.985
xxx8.873
xxx
xxx
xxx
xxxxxx
xxx
xxxxxx
xxx7.712
xxx
xxx Detailedflamespeedwas only calculated
..... Miscellaneousproblem.Note: A material is consideredto be flammable
for samples that exhibited dripping behavior at least four times.
if the sample hasa burn length>6 in. 7
0.6000
DetailedPropagationRateVersusPressureInconelTM 601
0.5000
i 0.40000.3000
0.2000
0.1000
0.0000
l y=O.O858xO.2263
R2=0.7188
I I I I I
500 1,000 1,500 2,000 2,500
Pressure(psi)
3,000
o
0.4500
0.4000
0.3500
0.3000
0.2500
0.2000
0.1500
0.1000
0.0500
0.0000
StandardPropagationRateVersusPressureInconelTM 601
' ; : ____.________----_
S; :• y=O.O851x0.1912
• R2=0'2321
I I I I I
500 1,000 1,500 2,000 2,500
Pressure(psi)
3,000
8
APPENDIX CmSTAINLESS STEELS
Stainless Steel
Composition:Fe = Cr =
Bal. 15.04
Density: 7.8 mg/m 3
Thermal Conductivity (W/moK):100 °C 500 °C
17.8 23.0
Ni=
4.64
C.1 CRES 15-5PH
6--
3.32
Specific Heat:420 J/kgoK
Melting Range:1,400-1,440 °C
Sample No.
1
23
45
67
8
910
1
23
45
67
89
10
12
3
45
67
89
10
Pressure
(psi)
1,0001,000
1,0001,000
1,000
1,0001,000
1,0001,000
1,000
500
500500
500500
500500
500500
500
250250
250
250250
250250
250250
250
Burn Length(in)
12.00
12.0012.00
4.2012.00
12.0012.00
12.00
12.0012.00
5.50
2.704.90
6.002.30
8.305.30
12.000.57
4.76
Standard PropagationRate (in/s)
0.3339
0.34020.3327
0.28750.3380
0.33620.3270
0.3474
0.33650.3507
0.2819
0.28390.2316
0.34760.2541
0.27750.2688
0.31290.1005
0.2615
0.260.31
0.64
0.260.22
1.010.20
0.250.64
2.19
0.01970.0347
0.0920
0.02450.0355
0.15710.0826
0.04410.1077
0.1802
Detailed PropagationRate (in/s)
0.4120
0.41220.4359
0.40190.4008
0.39900.4102
0.3941
0.39330.3870
0.3740
0.37290.3321
0.36300.3712
0.36980.3780
0.3721
xxx0.2815
xxx
xxx
xxx
xxx
xxx
0.2218xxx
xxx
xxx0.2833
Pressure
(Mpa)
6.895
6.8956.895
6.8956.895
6.8956.895
6.895
6.8956.895
3.447
3.4473.447
3.4473.447
3.4473.447
3.4473.447
3.447
1.7241.724
1.724
1.7241.724
1.7241.724
1.7241.724
1.724
Detailed
PropagationRate (ram/s)
10.466
10.46911.073
10.20710.181
10.13510.420
10.011
9.9919.829
9.499
9.4728.436
9.2199.430
9.3929.601
9.451
xxx7.150
xxx
xxx
xxx
xxx
xxx
5.633xxx
xxx
xxx7.197
xxx Detailedflame speedwas only calculated
..... Miscellaneousproblem.Note: A material is consideredto be flammable
for samples that exhibited dripping behaviorat least four times.
if the sample hasa burn length>6 in.
9
0.45
DetailedPropagation RateVersusPressureCRES15-5PH
A
=
o
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
00
!
y=O.O582x0.2837R2=0.6825
1O0 200 300 400 500 600 700 800 900 1,000
Pressure (psi)
0.45
0.40
A 0.35
0.30
0.25
0.20
0.15
0.10
0.05
StandardPropagationRate VersusPressureCRES15-5PH (Stainless Steel)
• R2=0.626
I I I I I I I I I
100 200 300 400 500 600 700 800 900 1,000
Pressure(psi)
]0
No. 8656141
Wrought Stainless Steel Annealed Cond.
Composition:Fe = Cr = Ni =Bal. 15.2 4.09
Density: 7.8 mg/m 3
Melting Temperature:1,400-1,440 °C
C.2 CRES 17-4PH
Cu =
3.8
Specific Heat:
460 J/kgoK
Thermal Conductivity (W/moK):100 °C 500 °C18.3 23.0
Pressure Burn Length Standard Propagation Detailed Propagation Pressure Detailed Propagation
Sample No. (psi) (in) Rate (in/s) Rate (in/s) (Mpa) Rate (ram/s)
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
1,000
75O
75O
75O
75O
75O
75O
75O
75O
75O
75O
500
500
500
500
500
500
500
500
500
500
12.00
12.00
1.70
1.40
12.00
12.00
12.00
12.00
12.00
12.00
12.00
0.70
12.00
12.00
4.70
12.00
2.50
9.60
12.00
1.20
0.90
1.10
1.10
0.70
4.00
1.50
0.70
0.70
4.00
0.60
0.3237
0.3336
0.2545
0.2439
0.3228
0.3427
0.3304
0.3368
0.3411
0.3358
0.3228
0.1246
0.3144
0.3190
0.3264
0.3202
0.2955
0.2180
0.3160
0.1936
0.1718
0.1316
0.1943
0.1101
0.3012
0.1847
0.1178
0.1228
0.3023
0.1097
0.3790
0.3895
0.3730
0.3691
0.3750
0.3778
0.3539
0.3833
0.3686
xxx
0.3625
0.3685
0.3911
0.3615
0.3757
0.3724
0.3723
0.3081
xxx
0.3090
0.3495
xxx
0.3226
0.3365
xxx
xxx
0.3417
xxx
6.895
6.895
6.895
6.895
6.895
6.895
6.895
6.895
6.895
6.895
5.171
5.171
5.171
5.171
5.171
5.171
5.171
5.171
5.171
5.171
3.447
3.447
3.447
3.447
3.447
3.447
3.447
3.447
3.447
3.447
9.628
9.892
9.474
9.374
9.525
9.597
8.989
9.736
9.363
xxx
9.208
9.360
9.934
9.181
9.543
9.459
9.457
7.826
xxx
7.850
8.876
xxx
8.195
8.547
xxx
xxx
8.678
xxx
xxx Detailedflame speedwas only calculated
..... Miscellaneousproblem.Note: A material is consideredto be flammable
for samples that exhibited dripping behaviorat least four times.
if the sample hasa burn length>6 in.
11
0.40
DetailedPropagationRate VersusPressureCRES17-4PH
0.35
0.30
0.250.20
0.15
0.10
0.05
I R2=0'4635 I
I I I I I I I I I
100 200 300 400 500 600 700 800 900
Pressure(psi)
1,000
StandardPropagationRateVersusPressureCRES17-4PH (StainlessSteel)
0.35
-- 0.25 YR_0:'00407474"9678
0.20 _ •0.15
oo OOi"1O0 200 300 400 500 600 700 800 900
Pressure(psi)
1,000
]2
Cold Finished Bar Round H No. 1776-33Stainless Steel
Composition:Fe = Cr = Ni =
Bal. 16.8 11.2
Density: 8.0 mg/m 3
Melting Temperature:1,375-1,400 °C
Specific Heat:
500 J/kgoK
Thermal Conductivity (W/moK):100 °C 500 °C16.2 21.5
C.3 CRES 316 CF
Mo = Mn =
2.1 1.4
Sample No.
1
2
3
4
5
6
7
8
9
10
Pressure
(psi)
1,000
1,000
75O
75O
75O
500
500
500
500
500
500
500
500
500
500
Burn Length
(in)
12.00
12.00
12.00
4.25
12.00
2.88
0.69
0.38
0.88
3.89
0.69
12.00
0.38
1.31
3.50
Standard Propagation
Rate (in/s)
0.290
0.292
0.295
0.230
0.264
0.154
0.071
0.034
0.056
0.193
0.055
0.295
0.108
0.113
0.164
Detailed Propagation
Rate (in/s)
0.4250
0.3953
0.3957
0.3640
0.4059
0.4023
xxx
xxx
xxx
0.3373
0.3512
0.3613
xxx
0.3420
0.3637
Pressure
(Mpa)
6.895
6.895
5.171
5.171
5.171
3.447
3.447
3.447
3.447
3.447
3.447
3.447
3.447
3.447
3.447
Detailed
Propagation
Rate (ram/s)
10.794
10.042
10.051
9.246
10.311
10.220
xxx
xxx
xxx
8.568
8.921
9.177
xxx
8.687
9.238
xxx Detailed flame speed was only calculated for samples that exhibited dripping behavior at least four times.
Note: A material is considered to be flammable if the sample has a burn length >6 in.
13
0.45
DetailedPropagationRate VersusPressure316 CFH No. 1776-33
A
,m
=
P
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
y=O.1094xo.1913R2=0.5138
I I I I I I I I I
100 200 300 400 500 600 700 800 900 1,000
Pressure(psi)
0.35
StandardPropagationRateVersusPressure316 CF(StainlessSteel)
A
¢D
=
==.o
=
0.30
0.25
0.20
0.15
0.10
0.05
00
./
y=2E_O6x 1.7289 • J
I I I I I I I I
1O0 200 300 400 500 600 700 800 900 1,000
Pressure(psi)
]4
C.4 CRES 422 CG Ann.
Wrought Stainless Steels Annealed Condition
Density: 7.8 mg/m 3
Melting Temperature1,470-1,480 °C
Composition:Fe = Cr = W =
Specific Heat:
460 J/kgoK
Mo=
Thermal Conductivity (W/moK):100 °C 500 °C
23.9 27.3
Sample
12
34
56
7
89
10
12
34
56
7
89
10
12
34
56
78
9
10
2
3
45
67
89
10
No.Pressure
(psi)
2,000
2,000
2,0002,000
2,0002,000
2,0002,000
2,0002,000
1,500
1,5001,500
1,500
1,5001,500
1,5001,500
1,5001,500
1,250
1,2501,250
1,2501,250
1,250
1,2501,250
1,2501,250
1,000
1,0001,000
1,0001,000
1,000
1,0001,000
1,000
Burn Length
(in)
12.0012.00
12.0012.00
12.0012.00
12.00
12.0012.0012.00
12.001.10
12.0012.00
12.000.18
4.35
7.3712.00
4.61
0.881.88
6.501.08
1.121.51
0.364.13
1.26
0.58
Standard Propagation
Rate (in/s)
0.38470.3910
0.38770.3823
0.39640.3729
0.3975
0.38440.39420.3915
0.36470.3642
0.35810.3655
0.36740.2857
0.3441
0.35360.36860.3102
0.37610.3181
0.32150.3711
0.44620.3199
0.31300.3275
0.3590
0.4328
2.91
0.24
3.672.01
0.940.99
1.573.67
2.97
0.3322
0.2376
0.33420.3533
0.33810.3449
0.32440.3345
0.3267
Detailed Propagation
Rate (in/s)
0.43540.4746
0.50320.4567
0.44190.4803
0.43310.43230.4305
0.46150.4008
0.38230.4803
0.4169
xxx0.3819
0.42620.39780.3611
0.39490.3813
0.41010.4014
0.39230.3970
xxx0.4037
0.3763
xxx
xxx
0.37470.3862
0.35450.3653
0.31730.3788
0.3796
Pressure
(Mpa)
13.79013.790
13.79013.790
13.79013.790
13.790
13.79013.79013.790
10.34210.342
10.34210.342
10.34210.342
10.342
10.34210.34210.342
8.6188.618
8.6188.618
8.6188.618
8.6188.618
8.618
8.618
6.895
6.895
6.8956.895
6.8956.895
6.8956.895
6.895
Detailed
Propagation
Rate (ram/s)
11.06012.055
12.78211.599
11.22412.201
11.00010.97910.935
11.72210.180
9.70912.200
10.588
xxx9.701
10.82510.104
9.172
10.0299.684
10.41610.195
9.96310.083
xxx10.254
9.557
xxx
xxx
9.5199.810
9.0059.279
8.0599.622
9.643
xxx Detailedflame speedwas only calculated
..... Miscellaneousproblem.Note: A material is consideredto be flammable
for samples that exhibited dripping behaviorat least four times.
if the sample hasa burn length>6 in.15
0.6
DetailedPropagationRateVersusPressureCRES422 CGAnn.
0.5
Ai 0.4
0.3
0.2
0.1
I =O.O432xO.3O89R2=0.6066
I I I I I I I I I
0 200 400 600 800 1,000 1,200 1,400 1,600 1,800
Pressure (psi)
2,000
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
StandardPropagationRateVersusPressureCRES422 (StainlessSteel)
- • **
t .
- • •
I I I I I I I I I
200 400 600 800 1,000 1,200 1,400 1,600 1,800
Pressure(psi)
2,000
]6
Cobalt Alloy
Composition:Co = Ni =
35.0 35.0
Density: 8.4 mg/m 3
Melting Temperature:1,315-1,426 °C
Or=
20.00
APPENDIX DmCOBALT ALLOYS
D.1 MP35N
Mo = Specific Heat:
10.0 753 J/kgoK
Thermal Conductivity (W/moK):21 °C
11.07
Sample No.
12
34
56
78
9
10
12
34
56
78
9
10
12
34
56
78
910
Pressure
(psi)
3,000 0.58
3,000 12.00
3,000 3.383,000 3.38
3,000 1.263,000 2.56
3,000 5.693,000 0.81
3,000 5.363,000 3.20
2,500 0.89
2,500 0.83
2,500 2.512,500 10.872,500 2.14
2,500 2.64
2,500 2.262,500 1.26
2,500 0.392,500 5.58
2,000 1.95
2,000 0.352,000 1.05
2,000 0.25
2,000 0.342,000 1.402,000 1.15
2,000 1.10
2,000 1.952,000 1.30
Burn Length
(in)
Standard Propagation
Rate (in/s)
0.25900.3299
0.34130.2247
0.30260.3223
0.34220.2506
0.3201
0.3548
0.28340.1539
0.21180.2946
0.22570.2225
0.25590.2045
0.1075
0.2455
0.24590.2991
0.30610.1534
0.12000.2828
0.29560.2828
0.31710.2000
Detailed Propagation
Rate (in/s)
xxx0.3832
0.37230.3935
0.40850.4206
0.3606
0.4123
0.4205
0.36580.2927
0.38830.3804
0.3452
0.33990.3303
xxx
0.3512
0.3537xxx
0.3395
xxxxxx
0.3978
0.36410.3572
0.40560.3363
Pressure
(Mpa)
20.68420.684
20.68420.684
20.68420.684
20.68420.684
20.684
20.684
17.23717.237
17.23717.237
17.23717.237
17.23717.237
17.237
17.237
13.79013.790
13.79013.790
13.79013.790
13.79013.790
13.79013.790
Detailed
Propagation
Rate (ram/s)
xxx9.734
9.4579.994
10.37610.683
9.160
10.474
10.681
9.2927.434
9.8629.662
8.767
8.6338.391
xxx
8.921
8.984xxx
8.624
xxxxxx
10.105
9.2499.073
10.3028.541
xxx Detailedflame speedwas only calculatedfor samples that exhibited dripping behaviorat least four times...... Miscellaneousproblem.
Note: A material is consideredto be flammableif the sample hasa burn length>6 in.
17
0.45
0.40
0.35
A 0.30
i 0.250.20
.o 0.15
0.10
0.05
DetailedPropagationRateVersusPressureMP35N
i ¢ $
m
Y=OO765x°2°13IR2=0.1387
I I I I I
500 1,000 1,500 2,000 2,500 3,000
Pressure(psi)
A
,m
0,m
.oQ,.
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
StandardPropagationRateVersusPressure
MP35N (CobaltAlloy)
Y=O'OO4xO5277 t •
R2=0'0861 _ •
I I I I I
500 1,000 1,500 2,000 2,500
Pressure(psi)
3,000
]8
REPORT DOCUMENTATION PAGE FormApprovedOMB No. 0704-0188
Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources,gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of thiscollection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operation and Reports, 1215 JeffersonDavis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188), Washington, DC 20503
1. AGENCY USE ONLY (Leave Blank) 2. REPORT DATE
June 20024. TITLE AND SUBTITLE
Promoted Combustion Test Propagation Rate Data
6. AUTHORS
J. Borstorff*, P. Jones**, and F. Lowery
7. PERFORMING ORGANIZATION NAMES(S) AND ADDRESS(ES)
George C. Marshall Space Flight Center
Marshall Space Flight Center, AL 35812
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
National Aeronautics and Space Administration
Washington, DC 20546-0001
3. REPORT TYPE AND DATES COVERED
Technical Memorandum5. FUNDING NUMBERS
8. PERFORMING ORGANIZATIONREPORT NUMBER
M-1052
10. SPONSORING/MONITORING
AGENCY REPORT NUMBER
NASA/TM--2002-211787
11. SUPPLEMENTARY NOTES
* Summer Faculty Fellow Accompanying Student, Auburn University
** Summer Faculty Fellow, Auburn University
Prepared by Materials and Processes Laboratory, Science and Engineering Directorate
12a. DISTRIBUTION/AVAILABILITYSTATEMENT 12b. DISTRIBUTION CODE
Unclassified-Unlimited
Subject Category 26Standard Distribution
13. ABSTRACT (Maximum 200 words)
Combustion propagation rate data were examined for potential use in benchmarking a thermal
model of the Promoted Combustion Test (PET), and also for potential use in measuring the
repeatability of PeT results.
14. SUBJECT TERMS
promoted combustion, propagation rate, metal combustion
15. NUMBER OF PAGES
24
16. PRICE CODE
17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATION 19. SECURITY CLASSIFICATION 20. LIMITATION OF ABSTRACT
OF REPORT OF THIS PAGE OF ABSTRACT
Unclassified Unclassified Unclassified Unlimited
NSN 7540-01-280-5500 Standard Form 298 (Rev. 2-89)Prescribedby ANSISId 23918298102
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