Augmented Spark Igniter Tests 2012-05-20
Tested the v4 igniter. See the discussion on the main page for more details. There was no video for Run 8.
Run 1 Image
Run 1 Clip
Run 1 Data
Run 1 Conditions
Mixture ratio = 1.04
wDot total = 0.0059 lb/s
Run 2 Image
Run 2 Clip
Run 2 Data
Run 2 Conditions
Mixture ratio = 1.05
wDot total = 0.0058 lb/s
Run 3 Image
Run 3 Clip
Run 3 Data
Run 3 Conditions
Mixture ratio = 1.11
wDot total = 0.0058 lb/s
Run 4 Image
Run 4 Clip
Run 4 Data
Run 4 Conditions
Mixture ratio = 1.07
wDot total = 0.0062 lb/s
Run 5 Image
Run 5 Clip
Run 5 Data
Run 5 Conditions
Mixture ratio = 1.10
wDot total = 0.0058 lb/s
Run 6 Image
Run 6 Clip
Run 6 Data
Run 6 Conditions
Mixture ratio = 1.20
wDot total = 0.0058 lb/s
Run 7 Image
Run 7 Clip
Run 7 Data
Run 7 Conditions
Mixture ratio = 1.22
wDot total = 0.0058 lb/s
Run 8 Image
Run 8 Data
Run 8 Conditions
Mixture ratio = 1.26
wDot total = 0.0059 lb/s
Run 9 Image
Run 9 Clip
Run 9 Data
Run 9 Conditions
Mixture ratio = 1.20
wDot total = 0.0058 lb/s
Run 10 Image
Run 10 Clip
Run 10 Data
Run 10 Conditions
Mixture ratio = 1.17
wDot total = 0.0058 lb/s
Run 11 Image
Run 11 Clip
Run 11 Data
Run 11 Conditions
Mixture ratio = 1.19
wDot total = 0.0058 lb/s
Augmented Spark Igniter Tests 2012-05-19
Tested the v4 and v5 igniter. All were with v4 except Run 3 which used the v5 igniter (and didn't work). See the discussion on the main page for more details. Update 2012-06-08: I originally used the wrong GOX temperature to calculate the mass flow and mixture ratio. As a result, the values were a lot lower than intended which explains the weak plume seen in the photos and videos.
Run 1 Image
Run 1 Clip
Run 1 Data
Run 1 Conditions
Mixture ratio = 0.78
wDot total = 0.0063 lb/s
Run 2 Image
Run 2 Clip
Run 2 Data
Run 2 Conditions
Mixture ratio = 1.10
wDot total = 0.0062 lb/s
Run 3 Image
Run 3 Clip
Run 3 Data
Run 3 Conditions
v5 body - No combustion
Run 4 Image
Run 4 Clip
Run 4 Data
Run 4 Conditions
Mixture ratio = 0.90
wDot total = 0.0059 lb/s
Run 5 Image
Run 5 Clip
Run 5 Data
Run 5 Conditions
Mixture ratio = 1.00
wDot total = 0.0061 lb/s
Run 6 Image
Run 6 Clip
Run 6 Data
Run 6 Conditions
Mixture ratio = 1.00
wDot total = 0.0061 lb/s
Run 7 Image
Run 7 Clip
Run 7 Data
Run 7 Conditions
Mixture ratio = 1.04
wDot total = 0.0059 lb/s
Augmented Spark Igniter Tests 2012-02-05
Tested two versions (short and long) of the v2 igniter. Runs 1-3 were with the short body version (0.75 inch shorter chamber) and Runs 4-5 were with the long body version. See the discussion on the main page for more details. Update 2012-06-08: I originally used the wrong GOX temperature to calculate the mass flow and mixture ratio. As a result, the values were a lot lower than intended which explains the weak plume seen in the photos and videos.
Run 1 Image
Run 1 Clip
Run 1 Data
Run 1 Conditions
Short body version
Mixture ratio = 0.87
wDot total = 0.0055 lb/s
Run 2 Image
Run 2 Clip
Run 2 Data
Run 2 Conditions
Short body version
Mixture ratio = 0.91
wDot total = .0054 lb/s
Run 3 Image
Run 3 Image (end of run)
Run 3 Clip
Run 3 Data
Run 3 Conditions
Short body version
Mixture ratio = 1.48
wDot total = 0.0046 lb/s
Run 4 Image
Run 4 Clip
Run 4 Data
Run 4 Conditions
Long body version
Mixture ratio = 0.71
wDot total = 0.0072 lb/s
Run 5 Image
Run 5 Clip
Run 5 Data
Run 5 Conditions
Long body version
Mixture ratio = 0.92
wDot total = 0.0056 lb/s
Augmented Spark Igniter Tests 2012-02-04
Tested two versions (short and long) of the v2 igniter. Runs 1-5 were with the short body version (0.75 inch shorter chamber) and Run 6 was with the long body version. See the discussion on the main page for more details. Update 2012-06-08: I originally used the wrong GOX temperature to calculate the mass flow and mixture ratio. As a result, the values were a lot lower than intended which explains the weak plume seen in the photos and videos.
Run 1 Image
Run 1 Clip
Run 1 Data
Run 1 Conditions
Short body version
Mixture ratio = 0.57
wDot total = 0.0068 lb/s
Run 2 Image
Run 2 Clip
Run 2 Data
Run 2 Conditions
Short body version
Mixture ratio = 0.81
wDot total = 0.0055 lb/s
Run 3 Image
Run 3 Clip
Run 3 Data
Run 3 Conditions
Short body version
Mixture ratio = 0.93
wDot total = 0.0054 lb/s
Run 4 Image
Run 4 Clip
Run 4 Data
Run 4 Conditions
Short body version
Mixture ratio = 0.94
wDot total = 0.0053 lb/s
Run 5 Image
Run 5 Image (end of run)
Run 5 Clip
Run 5 Data
Run 5 Conditions
Short body version
Mixture ratio = 0.84
wDot total = 0.0053 lb/s
Run 6 Image
Run 6 Clip
Run 6 Data
Run 6 Conditions
Long body version
Mixture ratio = 0.93-0.96
wDot total = 0.0055-0.0044 lb/s
Augmented Spark Igniter Tests 2012-01-16
Tested the new v1 igniter four times. For the first two runs, there is no visible plume, only a slight darkening in the still images. See the discussion on the main page for more details. Update 2012-06-08: I originally used the wrong GOX temperature to calculate the mass flow and mixture ratio. As a result, the values were a lot lower than intended which explains the weak plume seen in the photos and videos.
Pre-test image
Test setup
Test control
Run 1 Clip
Run 1 Data
Run 1 Conditions
Mixture ratio = 0.72
wDot total = 0.0071 lb/s
Run 2 Image (before run)
Run 2 Image (during run)
Run 2 Clip
Run 2 Data
Run 2 Conditions
Mixture ratio = 0.68
wDot total = 0.0073 lb/s
Run 3 Image (during run)
Run 3 Clip
Run 3 Data
Run 3 Conditions
Mixture ratio = 1.07-1.17
wDot total = 0.0049-0.0046 lb/s
Run 4 Image (during run)
Run 4 Clip
Run 4 Data
Run 4 Conditions
Mixture ratio = 2.32
wDot total = 0.0041 lb/s
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