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Figure 1.
Schematic of experimental apparatus.
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Figure 2.
Explosion pressure curves in the primary container under different volume ratio conditions.
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Figure 3.
Explosion pressure curves in the secondary container under different volume ratio conditions.
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Figure 4.
Explosion pressure curves in the primary and secondary containers with different pipe lengths and a 0.5 volume ratio of the primary and secondary containers.
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Figure 5.
Explosion pressure curves in the primary and secondary containers with different pipe lengths and a 10.3 volume ratio of the primary and secondary containers.
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Figure 6.
Explosion pressure curves in the primary and secondary containers with different pipe diameters and a 0.5 volume ratio of the primary and secondary containers.
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Figure 7.
Explosion pressure curves in the primary and secondary containers with different pipe diameters and a 10.3 volume ratio of primary and secondary containers.
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Test No. Volume ratio of primary and secondary
containerVolume of primary container (L) Volume of secondary container (L) Length
of pipe
(m)Pipe diameter (m) Test 1 0.1 11 113 2.25 0.059 Test 2 0.2 22 113 2.25 0.059 Test 3 0.4 22 55 2.25 0.059 Test 4 0.5 11 22 2.25 0.020 Test 5 0.5 11 22 2.25 0.059 Test 6 0.5 11 22 2.25 0.108 Test 7 0.5 11 22 2.25 0.133 Test 8 0.5 11 22 4.25 0.059 Test 9 0.5 11 22 6.25 0.059 Test 10 0.5 11 22 8.25 0.059 Test 11 2 22 11 2.25 0.059 Test 12 2.5 55 22 2.25 0.059 Test 13 5.1 113 22 2.25 0.059 Test 14 10.3 113 11 2.25 0.020 Test 15 10.3 113 11 2.25 0.059 Test 16 10.3 113 11 2.25 0.108 Test 17 10.3 113 11 2.25 0.133 Test 18 10.3 113 11 4.25 0.059 Test 19 10.3 113 11 6.25 0.059 Test 20 10.3 113 11 8.25 0.059 Table 1.
Experimental scheme.
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Volume ratio 0.1 0.2 0.4 0.5 2 2.5 5.1 10.3 *P Primary container Pmax / MPa 0.619 0.625 0.631 0.635 0.610 0.613 0.650 0.677 0.000 Absolute deviation 0.0003 0.0007 0.0000 0.0023 0.0027 0.0010 0.0020 0.0010 − (dP/dt)max / MPa·s−1 17.16 20.37 22.70 24.73 22.31 20.25 17.07 15.10 0.000 KG / MPa·m·s−1 8.70 10.60 9.91 8.40 7.58 8.84 8.89 7.65 − Secondary container Pmax / MPa 0.640 0.644 0.654 0.657 0.825 0.831 0.874 0.908 0.000 Absolute deviation 0.0000 0.0020 0.0023 0.0047 0.0043 0.0010 0.0030 0.0063 − (dP/dt)max / MPa·s−1 20.59 22.72 26.46 28.41 44.98 48.36 53.90 60.03 0.001 KG / MPa·m·s−1 10.43 11.83 11.55 9.65 15.27 21.11 28.06 30.42 − Table 2.
Explosion test results in primary and secondary containers under different volume ratio conditions.
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Volume ratio (0.5) Pipe length 2.25 m 4.25 m 6.25 m 8.25 m *P Primary container Pmax / MPa 0.635 0.667 0.690 0.703 0.000 Absolute deviation 0.0023 0.0007 0.0017 0.0057 − (dP/dt)max / MPa·s−1 24.73 67.66 103.55 143.55 0.048 KG / MPa·m·s−1 8.40 24.00 38.19 54.80 − Secondary container Pmax / MPa 0.657 0.697 0.711 0.734 0.000 Absolute deviation 0.0047 0.0017 0.0043 0.0006 − (dP/dt)max / MPa·s−1 28.41 56.44 81.41 104.14 0.030 KG / MPa·m·s−1 9.65 20.02 30.01 39.72 − Table 3.
Explosion test results in primary and secondary containers under different pipe length conditions with a vessel ratio of 0.5.
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Volume ratio (10.3) Pipe length 2.25 m 4.25 m 6.25 m 8.25 m *P Primary container Pmax / MPa 0.677 0.726 0.771 0.831 0.000 Absolute deviation 0.0010 0.0050 0.0033 0.0020 − (dP/dt)max / MPa·s−1 15.10 42.30 76.22 102.3 0.046 KG / MPa·m·s−1 7.65 21.73 39.68 53.94 − Secondary container Pmax / MPa 0.908 0.963 1.154 1.398 0.000 Absolute deviation 0.0063 0.0070 0.0050 0.0000 − (dP/dt)max/ MPa·s−1 60.03 90.93 161.47 236.70 0.043 KG / MPa·m·s−1 30.42 46.72 84.08 124.80 − Table 4.
Explosion test results in primary and secondary containers under different pipe length conditions with a vessel ratio of 10.3.
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Volume ratio (0.5) Pipe diameter 0.02 m 0.059 m 0.108 m 0.133 m *P Primary container Pmax / MPa 0.680 0.635 0.605 0.588 0.000 Absolute deviation 0.0017 0.0003 0.0043 0.0027 − (dP/dt)max / MPa·s−1 28.85 24.73 19.90 16.93 0.006 KG / MPa·m·s−1 9.32 8.40 7.50 6.78 − Secondary container P max / MPa 0.701 0.657 0.632 0.611 0.000 Absolute deviation 0.0010 0.0020 0.0023 0.0040 − (dP/dt)max / MPa·s−1 32.51 28.41 23.11 19.13 0.005 KG / MPa·m·s−1 10.50 9.65 8.71 7.66 − Table 5.
Explosion test results in primary and secondary containers under different pipe diameter conditions with a vessel ratio of 0.5.
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Volume ratio (10.3) Pipe diameter 0.02 m 0.059 m 0.108 m 0.133 m *P Primary container Pmax / MPa 0.707 0.677 0.652 0.639 0.000 Absolute deviation 0.0023 0.0037 0.0130 0.0053 − (dP/dt)max / MPa·s−1 17.61 15.10 12.50 10.05 0.009 KG / MPa·m·s−1 8.80 7.65 6.56 5.40 − Secondary container P max / MPa 0.943 0.908 0.873 0.849 0.000 Absolute deviation 0.0020 0.0023 0.0000 0.0007 − (dP/dt)max / MPa·s−1 74.12 60.03 52.88 46.77 0.003 KG / MPa·m·s−1 37.03 30.42 27.76 25.14 − Table 6.
Explosion test results in primary and secondary containers under different pipe diameter conditions with a vessel ratio of 10.3.
Figures
(7)
Tables
(6)