Experimental Wallboard: R-Value Validation

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Experimental Wallboard R-Value Validation

• Paul Gollnick
• Dave Garrett
• Will Watson
• 8/13/07

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Overview

• Objective
• Test 1- Conduction apparatus
• Test 2- Tube Test
• Test 3- Hot Plate
• Recommendations
• Conclusion

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Objective

• 1. Wallboard Testing
• The purpose of this series of experiments
  
• was to determine the heat transfer
• coefficient and associated R-value for
• standard ½ composite wallboard
• 2. Group
• Our objective was to evaluate the
• problems associated with testing and
  suggest
• a more appropriate test method

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Test 1 Conduction Apparatus
Set Up 1
Set Up 2
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Set Up 1 Data
Power 2.25 W 2.25 W 3.15 W 3.15 W 6.35 W 6.35 W 10.7 W 10.7 W
  ED2 D2 E.D1 D1 E.D3 D3 E.D4 D4
T1 47.51 45.7 54.1 55.6 84.4 83.96 118.8 120.47
T2 47.09 45.2 53.3 55.2 83.3 82.81 117.2 118.48
T3 46.36 44.5 52.3 54.2 82.4 81.87 115.9 118.48
T7 24.8 24.2 23.6 24.7 25.7 27.29 27.7 29.66
T8 24.8 24.2 23.5 24.6 25.6 27.18 27.4 29.54
T9 24.8 24.2 23.4 24.6 25.6 27.18 27.3 29.54
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Test 1 Analysis

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Test 2 Data
 Power 6.2 W 6.2 W 10 W 15.1 W 6.15 W 9.85 W 13.45 W
E.D1 E.D2 E.D3 E.D4 D1 D2 D3
T1 66.8 68.7 95.5 115.5 76.2 104.5 123.8
T2 66.8 68.3 93.1 115.3 75.1 103.7 124.4
T3 65.5 67.9 92.5 114.1 71.8 99.2 119.2
T7 32.1 34.7 41.9 48.5 30.4 33.4 34.7
T8 31.8 34.4 41.4 47.8 30.2 33 34.2
T9 31.7 34.3 41.2 47.4 30.1 32.8 34.1
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Test 2 Analysis
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Test 2 Tube Test
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Test 3 Hot Plate
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Hot Plate Analysis
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Recommendations

• Perform test 1 run 1 with aluminum foil and or
  saran wrap enclosed in duct tape to trap dead air
  space as an insulator
• When running test 1 use lube to eliminate
  contact resistance
• Consider the time it takes to reach steady state,
  not just what happens at steady state
• Make boxes of the material and fill them with ice
  to test which one lasts longest
• Try different thicknesses of the material and run
  it without the paper

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Conclusion

• Objective
• Test 1- Conduction apparatus
• Test 2- Tube Test
• Test 3- Hot Plate
• Recommendations
• Conclusion