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Table 2

Comparing change in frustum area with change in gas throughput.

Case # Seat type PBD (meter) PTD (meter) Ball diameter (meter) Stem travel (meter) Frustum area (meter2) % Increase in frustum area % Fully open Gas throughput (SCM/s) % Increase in gas throughput
1 Modified Design 0.0048 0.0127 0.0143 0.0014 2.7993E-05 1 157 0.1337 4
2 0.0048 0.0111 0.0051 2.8380E-05 159 0.1386
3 0.0064 0.0143 0.0013 2.6252E-05 7 83 0.1917 26
4 0.0064 0.0111 0.0056 2.8058E-05 89 0.2415
5 0.0079 0.0143 0.0014 2.8638E-05 -2 58 0.2160 75
6 0.0079 0.0111 0.0064 2.7929E-05 56 0.3769
7 0.0095 0.0143 0.0014 2.8380E-05 -4 40 0.2140 179
8 0.0095 0.0111 0.0078 2.7219E-05 38 0.5971
9 Optimized Design 0.0064 0.0143 0.0017 3.5024E-05 -17 111 0.2134 16
10 0.0064 0.0111 0.0070 2.9213E-05 92 0.2465
11 0.0079 0.0143 0.0016 3.3218E-05 -15 67 0.2307 54
12 0.0079 0.0111 0.0078 2.8187E-05 57 0.3549
13 0.0095 0.0143 0.0017 3.3605E-05 -19 47 0.2402 84
14 0.0095 0.0111 0.0078 2.7090E-05 38 0.4428

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