Infrared Business Tips & Insight

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1 Infrared Business Tips & Insight 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only

2 Infrared Business Tips & Insight Presenter: Jay Bowen, Infrared Training Center. With increasing energy costs, thermal imaging cameras have quickly become prevalent for commercial and residential building inspection. Understanding the process of applying thermography and performing surveys efficiently and profitably is covered. This session will explore the numerous applications for thermal imaging technology beyond inspecting building envelopes. Discovering markets and revenue streams that augment the infrared building inspection are discussed. Examples will be given for each application and the basic conditions required Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 2

3 This is not new techniques! 1971 Home inspection with an AGA Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 3

4 Or An outdoor inspection 1969 AGA Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 4

5 Your Presenter Jay Bowen Electrician/ Engineer 32 years Thermographer 15 years Level III Master Electrician - Wisconsin Certified Electrical Inspector - Wisconsin Designer of Electrical Systems - Wisconsin Associate Degree Electronics Technology Electrical Contractor Business owner Involved in construction since 1977 Designed & Built one of the highest rated energy star homes in Wisconsin Green Bay, Wisconsin Packer Fan (season ticket holder), 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 5

6 Why IR Building Inspections? Building performance Insulation verification Locate air leakage Structural verification Moisture intrusion 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 6

7 What Can Infrared Thermography Find? Moisture Moisture Location(s) (Mapping) Evaluate Window Testing without Demolition Evaluate Roof Condition (ASTM C1153) Wall Condition Framing locations Pipe or duct locations Insulation Condition (ASTM C1060) Effectiveness (R values) Gaps Air infiltration Location of air infiltration during air test Electrical or Mechanical Problems 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 7

8 Seeing Through Walls??? Infrared cameras are NOT X-ray machines and cannot see through common materials. They image thermal energy from surface temperatures Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 8

9 Tools Blower Door Ammeter Anemometer FS Mirrors Moisture Meters Borescope 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 9

10 Topics to Understand The Electromagnetic Spectrum Infrared and Visible Spectrums Infrared Detection Devices Modes of Heat Transfer Radiation Conduction Convection Evaporation Thermal Capacity Thermal Image Interpretation Patterns Artifacts 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 10

11 Tip #1 Camera Selection???? 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 11

12 Choosing a camera Choosing a camera from the many available is a complicated task. Identify some important parameters Define some of the terms 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 12

13 Camera Resolution Camera resolution is the ability for the camera to detect and measure targets of a specific size Expressed in a multitude of ways as IFOV MFOV SSR Do all of these terms mean the same thing? 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 13

14 Camera terms IFOV (instantaneous field of view) smallest object that an imager can detect ( see ) but not measure accurately, expressed in milliradians The instantaneous FOV (IFOV) is a measure of the spatial resolution of a camera's focal plane array (FPA) detector and stated in terms of individual detector elements or pixels. For example, an FPA with 120 x 120 individual detectors has a total of 14,400 pixels Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 14

15 Camera terms MFOV (measurement field of view). The smallest object that an imager can measure accurately, expressed in milliradians (usually a multiple of the IFOV of the camera) MFOV IFOV 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 15

16 Camera terms SSR (spot size ratio). Used to calculate the maximum distance one can be from the camera to an object of a specific size to accurately measure it. SSR = D s = 1 MFOV D s 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 16

17 Camera Selection Regardless of which parameter is being discussed, they are all dependent on the imagers detector: Pixel density of the detector 80 x x x x x x x 480 Angle view of the lens attached to the camera Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 17

18 Let s Use a Visual Example The Effects of Pixel Density Camera Resolution Can You Tell What This Is An Image Of? Camera Selection How About Now? Getting Any Better? Better Yet? Are We There Yet? The BEST Highest Resolution! 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 18

19 Camera Selection 80 x 80 Camera resolution differences 120 x x x x 480 All images were captured at the same distance from the target 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 19

20 Camera Selection 80 x x x x 240 All images were captured at the same distance from the target 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 20

21 Camera Selection 140 x x 240 Additional framing from a removed window All images were captured at the same distance from the target 640 x Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 21

22 Camera Information IR image: a common size 200 x 150 pixels. Field of view depends on the distance between the camera and the scene. Visual image: 1536 x 1536 pixels (~2.3 mega pixels). How much can be seen in the image and resolved in detail. More pixel count generally means more detail from a given distance Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 22

23 Camera Specification Pixels (detector size) 140 x 140 Pixel size (IFOV) 2.10 mr Field of View (lens) 25º x 25º Focus NETD (sensitivity) Measurement Functions Close focus 0,12 m < 100 mk Spot, Alarm above/below, Dew point alarm, Insulation alarm Temperature Range(s) -20 C to 120 C, 0 C to 350 C Operating range - 15 C to 50 C Battery operating time ~ 5 h 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 23

24 Camera Specification Recommendations for a residential energy auditor: Detector not less than 120 x120. Low sensitivity but not higher than 100mK. FOV not less 20º. Pixel size or IFOV no larger than 3 mrad 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 24

25 Tip #2 - Lens Can the camera change lens? Common 25 Do I need additional lens? Telescopic 15 Wide Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 25

26 Lens Normal lens of 25 Wide angle lens of 45 Telescopic lens of Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 26

27 Lens Higher Res Lower Res Another reason for a lens is to capture a space or object in one image. Example shown; the space can t allow room to physically move further away to get this door in one image Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 27

28 Standards A technical standard is an established norm or requirement. It is usually a formal document that establishes uniform engineering or technical criteria, methods, processes and practices Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 28

29 Existing Standards - American ASTM C1060- [90 (2003)], Standard Practice for Thermographic Inspection of Insulation Installations in Envelope Cavities of Frame Buildings ASTM E 1186 [03], Standard Practice for Air Leakage Site Detection in Building Envelopes and Air Barrier Systems ASTM C (Reapproved 2003), "Standard Practice for Location of Wet Insulation in Roofing Systems Using Infrared Imaging ASTM E , Standard Practice for Determining Air Leakage Rate By Fan Pressurization ANSI-ASHRAE 101: Application of Infrared Sensing. Devices to the Assessment of Building Heat. Loss Characteristics 800 RESNET Standard for Performance Testing 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 29

30 Tip #3 Delta T X2.1 Infrared inspection requires a sufficient difference in temperature from inside to outside ( T) for a sufficiently long period of time, to produce discernible differences between areas with studs and areas that may contain insulation. Indoor temp Outdoor temp Delta is "change". Delta T is (T in -T out ) 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 30

31 Delta T X2.2 Minimum temperature difference ( T) of 10 C (18 F) between interior and exterior surface or ambient air temperatures for a period of 4 h prior to test Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 31

32 Delta T Without a temperature difference the heat transfer through and around a wall does not occur and the image will lack contrast Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 32

33 Tip #4 Avoid Wind X2.3.2 Avoid Wind For exterior surveys, the wind speed should be less than 6.7 m/s (15 mph) and the building surface should be dry Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 33

34 Avoid Wind An inside look at a small interior deficiency Exterior is 20 F and interior is 70 F Refrigerator gap 0 minutes 30 minutes A 3mph wind was placed on this area 60 minutes 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 34

35 Tip #5 Solar Influences X2.3.1 Avoid Solar Radiation No direct solar radiation on the inspected surfaces for approximately 3 h previous to the inspection for light frame construction and approximately 8 h for masonry veneer construction. T greater than 10 C reduces these times. Direct sunlight and other strong sources of thermal radiation make discrimination of uninsulated areas unreliable. Exterior surveys should be performed after sunset and before sunrise for best results Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 35

36 Solar 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 36

37 Solar 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 37

38 Solar 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 38

39 Tip #6 Air Flow Air flow through a building can have a powerful impact on comfort, expense, and air quality. Blower doors provide a way to quantify air flow and the resulting heat loss, along with a way to pinpoint specific leaks. The benefits of their use have been understood and documented enough that most professionals now consider them essential for effective (and costeffective) air sealing Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 39

40 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 40

41 Blower Door and Ducts 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 41

42 Tip #7 Heat Transfer SIP Construction Ceiling Wall 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 42

43 Water or Missing Insulation? 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 43

44 Window Failure Courtesy Bernie Lyon, ITC 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 44

45 Leaking Chimney 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 45

46 Water Intrusion Discovery Point of entry Visible leak 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 46

47 Tip #8 - Reports This is typically the only part of process the customer sees. It must be accurate and timely It should be concise and direct and include pertinent information 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 47

48 Reporting 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 48

49 Survey Data 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 49

50 Tip #9 An R Value Calculator Many Caveats to understand. Developed by Dr. Bob Madding of Infrared Training Center 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 50

51 How much does that cost me? No attic insulation ~R-3 Good attic insulation ~R-40 Assume 33X33 ft = 1000 sq ft Massachusetts weather Heating and AC Oil Heat 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 51

52 Energy savings estimate Enter Values Degree days found at: Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 52

53 Energy savings estimate $1400 View Results 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 53

54 Alternates to Auditing Electrical Mechanical Roofs Commissioning Quality control 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 54

55 Electrical Imaging Know your safety rules NFPA 70E specifically PPE criteria Know the equipment Fuses and breakers Oil filled vs. dry transformers Understand basic electrical knowledge Voltage levels Current relationship to resistance Understand thermography physics and science Reflection Emission Trefl or background Heat transfer Heat Capacity Material specific heats 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 55

56 Electrical Imaging Panel boards Cables and feeders 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 56

57 Electrical Imaging Why is this GFCI receptacle normal? But this regular receptacle not? 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 57

58 Electrical Imaging Why is this Motor normal? But this motor is not? 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 58

59 Know your safety rules Approach and guarding Know the equipment Bearing and sleeves Valve types Understand basic mechanical knowledge Torque and speeds Fluid flow dynamics Mechanical Imaging Understand thermography physics and science Reflection Heat transfer Emission Heat Capacity Trefl or background Material specific heats 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 59

60 Mechanical Imaging Blockage in a pipe at a flange Steam trap operation 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 60

61 Mechanical Imaging Bearing heat normal or not? Gear housing 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 61

62 Roof Deck Imaging Know your safety rules Access and guarding Know the roof material and underlayment Insulation Deck type Understand thermography physics and science Reflection Emission Trefl or background Heat Capacity Heat Transfer 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 62

63 Roof Imaging Inside Outside 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 63

64 Roof Imaging Aerial viewing On deck 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 64

65 Roof Imaging Ballasted Open 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 65

66 Commissioning Lime kiln operation at startup Building system startup 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 66

67 Commissioning Boiler house operation Subway rail power operation 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 67

68 Quality Control Grocery cooler food placement Asphalt paving 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 68

69 Quality Control Drywall sheet 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 69

70 Quality Control Solar collector 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 70

71 Summary There is an endless application list for thermal cameras and trained thermographers. Thank you and enjoy the thermal world!! 2010 Infrared Training Center. All rights reserved. Intended for use by Infrared Training Center customers and prospects only 71

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