infrared inspection of tires - irresearcher inspection of...infrared inspection of tires presented...
TRANSCRIPT
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Infrared Inspection of Tires
Presented by: Ron PredmeskyThermosolutions 02’
Orlando, Fl
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Did you know slide - Fuel
Under-inflation is not only the tire’s enemy for durability but is a significant contributor to increased rolling resistance and loss of fuel economy.
Tires under-inflated by 15% will cause fuel penalties of around 2.5% and 30% under-inflation by 5%.
For truck tires, a 10 psi drop in tire pressure will increase tire rolling resistance by 2%.
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Did you know slide – tire costs
Tire costs are now the 2nd highest operating cost after fuel.
Running tires at 20% under-inflation can reduce tire life by up to 50% and 30% under-inflation by 55%.
Under-inflation will cause increased tire running temperatures and leads to premature removal on the tire.
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Legal and Liability Concerns
Proper tire inflation would save 25,000 lives each year. (NHTSA)
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Infrared Inspection
*>134.0°F
*<110.9°F
115.0
120.0
125.0
130.0
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Test Parameters
18, 26, 29, 32 psi
No weight added, gross weight max, +400lbs gross weight.
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Infrared Inspection Methods
Dynamic – Infrared camera mounted on vehicle. Data collected as vehicle is moving.
Static – Infrared camera off vehicle, data taken while vehicle stopped.
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Infrared Camera Set Up
Dynamic
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Infrared Camera Set Up
Static
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Explorer Set Up
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F150 Set Up
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F150 (1990)
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F150 (1990)
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Camera Position- All Vehicles
43 inches back from center of wheel
8 ¾ inches from ground to top of lens
6 inches outside of wheel
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Test 1 50MPH (2 hours)
Min Mean Max 102.5 113.7 131.3Min Mean Max 102.5 113.7 131.3
*>143.0°F
*<74.1°F
80.0
90.0
100.0
110.0
120.0
130.0
140.0
Min Mean Max 106.9 119.3 135.4Min Mean Max 106.9 119.3 135.4
*>143.0°F
*<63.7°F
70.0
80.0
90.0
100.0
110.0
120.0
130.0
140.0
Min Mean Max 113.2 127.9 142.7Min Mean Max 113.2 127.9 142.7
*>143.0°F
*<63.7°F
70.0
80.0
90.0
100.0
110.0
120.0
130.0
140.0
Min Mean Max 106.5 119.3 137.5Min Mean Max 106.5 119.3 137.5
*>143.0°F
*<74.1°F
80.0
90.0
100.0
110.0
120.0
130.0
140.0
30 minutes 60 minutes
90 minutes120 minutes
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Test 1parked outside (2 hours)
Min Mean Max 100.6 103.4 106.2Min Mean Max 100.6 103.4 106.2
*>120.0°F
*<80.0°F
80.0
85.0
90.0
95.0
100.0
105.0
110.0
115.0
120.0
Min Mean Max 95.2 96.8 98.2Min Mean Max 95.2 96.8 98.2
*>120.0°F
*<80.0°F
80.0
85.0
90.0
95.0
100.0
105.0
110.0
115.0
120.0
Min Mean Max 94.4 95.9 97.3Min Mean Max 94.4 95.9 97.3
*>105.0°F
*<86.7°F
90.0
95.0
100.0
105.0
2.5 hours
Min Mean Max 96.2 98.1 99.8Min Mean Max 96.2 98.1 99.8
*>105.4°F
*<86.7°F
90.0
95.0
100.0
105.0
3 hours
3.5 hours 4 hours
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Test 1 Speed increase
161.5
*>164.0°F
*<90.0°F
90.0
100.0
110.0
120.0
130.0
140.0
150.0
160.0
145.7
*>164.0°F
*<90.3°F
100.0
110.0
120.0
130.0
140.0
150.0
160.0
162.4
*>164.0°F
*<90.0°F
90.0
100.0
110.0
120.0
130.0
140.0
150.0
160.0
30 minutes @ 75mph 30 minutes @ 80mph
30 minutes @ 85mph
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Test 42 hours @ 50 MPH
Min Mean Max 111.7 120.8 137.7Min Mean Max 111.7 120.8 137.7
*>160.2°F
*<63.6°F
80.0
100.0
120.0
140.0
160.0
Min Mean Max 117.3 126.4 140.3Min Mean Max 117.3 126.4 140.3
*>160.2°F
*<63.6°F
80.0
100.0
120.0
140.0
160.0
Min Mean Max 113.4 123.8 136.1Min Mean Max 113.4 123.8 136.1
*>160.2°F
*<63.6°F
80.0
100.0
120.0
140.0
160.0
Min Mean Max 116.6 128.5 143.4Min Mean Max 116.6 128.5 143.4
*>160.2°F
*<63.6°F
80.0
100.0
120.0
140.0
160.0
30 min 60 min
90 min 120 min
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TEST 4parked outside for 2 hours
Min Mean Max 105.3 107.8 111.5Min Mean Max 105.3 107.8 111.5
*>119.9°F
*<96.8°F
100.0
105.0
110.0
115.0 Min Mean Max 100.4 101.6 103.1Min Mean Max 100.4 101.6 103.1
*>108.0°F
*<96.8°F
98.0
100.0
102.0
104.0
106.0
Min Mean Max 99.9 101.0 102.2Min Mean Max 99.9 101.0 102.2
*>108.0°F
*<90.3°F
92.094.096.098.0
100.0102.0104.0106.0
Min Mean Max 101.1 102.4 103.7Min Mean Max 101.1 102.4 103.7
*>108.0°F
*<90.3°F
92.094.096.098.0
100.0102.0104.0106.0
2.5 hours 3 hours
3.5 hours 4 hours
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Test 4Speed increases
Min Mean Max 136.7 152.6 172.9Min Mean Max 136.7 152.6 172.9
*>191.3°F
*<103.6°F
110.0120.0130.0140.0150.0160.0170.0180.0190.0
Min Mean Max 133.4 149.1 168.5Min Mean Max 133.4 149.1 168.5
*>191.3°F
*<103.6°F
110.0120.0130.0140.0150.0160.0170.0180.0190.0
Min Mean Max 137.7 155.8 178.5Min Mean Max 137.7 155.8 178.5
*>191.3°F
*<103.6°F
110.0120.0130.0140.0150.0160.0170.0180.0190.0
30 min @ 75 MPH 30 min @ 80 MPH
30 min @ 85 MPH
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Brand X P235/75R15
32psi cold/35 psi hot 26psi cold/29 psi hot9/19/00 16:07 9/19/00 16:25103.2 deg F 102.6 deg F
122 deg F 120 deg F155.2 deg F 158 deg F
*>160.6°F
*<103.6°F
110.0
120.0
130.0
140.0
150.0
160.0
PressureTimestampAmbient TempRoad TempPeak Tire Temp
*>160.0°F
*<103.6°F
110.0
120.0
130.0
140.0
150.0
160.0
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Brand Y P235/75R15
32psi cold/35 psi hot 26psi cold/29 psi hot9/19/00 12:49 9/19/00 13:09103.1 deg F 104 deg F
138 deg F 139 deg F151.9 deg F 155.6 deg F
*>160.6°F
*<103.6°F
110.0
120.0
130.0
140.0
150.0
160.0
*>160.6°F
*<103.6°F
110.0
120.0
130.0
140.0
150.0
160.0
PressureTimestampAmbient TempRoad TempPeak Tire Temp
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Tire Temperature- Cool Down
020406080
100120140160180
10min
15min
20min
25min
30min
35min
40min
45min
50min
55min
60min
65min
Temp
Tim
e