Code Approval of Composite Propane Cylinders for Indoor Use ...

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Test MatrixThe fuel pressure, fill level and cylinder orientation were varied resulting in the test matrixdescribed in Table 4.Table 4. Summary of test conditionsTest Cylinder Date Fill LevelTargetFuelPressure(psig)QualitativeFire Conditionin PreliminaryTestAverageSteady StateFuel Pressure(psig)1 * Vertical 11/28/2005 80% (17.3L) 2.5 B 2.5 (Faulty fuelsupply)2 * Vertical 12/5/2005 80% (17.3L) 1 A 0.93 * Vertical 12/6/2005 80% (17.3L) 5 C 5.74 * Vertical 12/7/2005 80% (17.3L) 2.5 B 2.75 * Vertical 12/7/2005 80% (17.3L) 1 A 0.96 * Vertical 12/12/2005 80% (17.3L) 2.5 B 2.57 Vertical 1/10/2006 64% (13.8L) 1 A 1.08 Vertical 1/10/2006 64% (13.8L) 2.5 B 2.49 Vertical 1/10/2006 64% (13.8L) 5 C 4.710 Vertical 1/12/2006 64% (13.8L) 1 A 1.011 Vertical 1/12/2006 30% (6.5L) 1 A 1.012 Vertical 1/13/2006 30% (6.5L) 2.5 B 2.213 Vertical 1/13/2006 30% (6.5L) 5 C 4.814 Vertical 1/19/2006 80% (17.3L) 1 A 1.015 Vertical 1/19/2006 80% (17.3L) 2.5 B 2.116 Vertical 1/19/2006 80% (17.3L) 5 C 4.9H1 Horizontal 12/19/2005 80% (17.3L) 1 A 0.7H2 Horizontal 12/19/2005 80% (17.3L) 2.5 B 2.2H3 Horizontal 12/19/2005 80% (17.3L) 5 C 5.2H4 Horizontal 12/21/2005 64% (13.8L) 1 A 1.0H5 Horizontal 12/21/2005 64% (13.8L) 2.5 B Not reachedH6 Horizontal 1/4/2006 64% (13.8L) 2.5 B 3.0H7 Horizontal 1/4/2006 64% (13.8L) 5 C 6.7H8 Horizontal 1/5/2006 64% (13.8L) 5 C 5.1H9 Horizontal 1/5/2006 30% (6.5L) 1 A 1.0H10 Horizontal 1/6/2006 30% (6.5L) 2.5 B 2.4H11 Horizontal 1/6/2006 30% (6.5L) 5 C 5.2* A preliminary vertical calorimeter was used for tests 1 through 6. This calorimeter suffered several thermocouplefailures and was rebuilt. It was replaced for tests 7 to 16. Wall temperatures were invalid for tests 4 & 5 and parts oftests 3 & 6.Composite Propane Cylinders 19February 2007for Indoor Use — Phase IIBattelle
ResultsResults were obtained to quantify the temperature rise rate of the liquid and vapor space, and theliquid and vapor wetted wall temperatures. From these, it was possible to calculate the total heattransfer rate to the liquid, to estimate the average liquid wetted wall heat flux, and the effectivefire blackbody temperature. All test results are detailed in the calorimeter test report provided inAppendix C.In general, the results showed the following trends:i) increasing heat transfer rates and flux with burner pressureii) increasing peak wall temperatures with reduced fill levelsHowever there is considerable scatter and some unusual reversals in trends. These are believed tobe associated with external effects such as wind. Every attempt was made to test under low windconditions but some wind effects were inevitable. Wind is a major consideration in this kind oftesting.The burner arrangement used in this work was intended to simulate the heat flux from liquidhydrocarbon pool fires. The estimated flame temperatures obtained from these tests is in therange of 750 to 1050 C which is in good agreement with measured hydrocarbon pool firetemperatures.The following conclusions can be drawn from the results and observations of the fire conditions:1. Increased fuel pressure increases both the effective flame blackbody temperature andthe cylinder contact area for both the vertical and horizontal cylinders.2. Lower fill levels result in higher vapor wetted wall temperatures and reduced heattransfer to the liquid.3. Wind can significantly affect the flame geometry and therefore the heat transfer to thecylinder, especially if it is blowing the flame off the cylinder.4. The fire temperatures estimated from these tests suggest that the burners simulate theheating effects of a liquid hydrocarbon pool fire.The intended use for this information is to assist with the development of a cylinder listingstandard in which the test parameters can be more easily set and monitored.Composite Propane Cylinders 20February 2007for Indoor Use — Phase IIBattelle
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Page 7 and 8: lower joint. The failure mechanism
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Page 11 and 12: Composite Propane Cylinders x Febru
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Page 17 and 18: Phase I Meetings (PERC Docket # 113
Page 19 and 20: Table 1. Summary of Concerns and Co
Page 21 and 22: NFPA RegionalCommittee*Comments/Con
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Page 25 and 26: Table 2. Preliminary Composite Cyli
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Page 45 and 46: Table 5. Test Variations for Test T
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Code Approval of Composite Propane Cylinders for Indoor Use ...

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