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Introduction to infrared thermography What is thermography and how can we use it? An introduction to the technology and some important applications for it. ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Lesson objectives Know how to define infrared thermography Understand the subtopics that make up infrared thermography Understand the importance of temperature as a control parameter Understand what makes thermography unique and useful Be able to recall some examples of applications for infrared thermography ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Why is temperature important? Name some processes – industrial or otherwise, where temperature is important. Why? Name ONE process where temperature is completely unimportant… ITC Level 1 Training © Publ. no. 1560097_G-en_GB
What makes thermography so useful? • It is non-contact – uses remote sensing • Keeps the user out of danger • Does not intrude upon or affect the target at all • It is two-dimensional • Comparison between areas of the target is possible • The image allows for excellent overview of the target • Thermal patterns can be visualised for analysis • It is real time • Enables very fast scanning of stationary targets • Enables capture of fast moving targets • Enables capture of fast changing thermal patterns ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Thermography spans many subject areas… Analysis- techniques Radiation science Camera handling IRT Thermal science Inspection routines and reporting Applications ITC Level 1 Training © Publ. no. 1560097_G-en_GB
An infrared image • Darker means cooler, brighter means warmer • What does this image tell us? ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Infrared thermography defined Infrared thermography is the science of acquisition and analysis of thermal information from non-contact thermal imaging devices ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Applications Condition Based Maintenance Research and Development Medical and veterinary Quality control and process monitoring Non-destructive testing And many others! ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Condition Monitoring Electrical maintenance Buildings Furnaces and boilers Mechanical, friction Fluid flow problems Tanks and vessels ITC Level 1 Training © Publ. no. 1560097_G-en_GB
High voltage substation • Hot connection ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Low voltage indoor • Finding hidden problems among thousands of connections ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Domestic ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Pipe sediment • Sediment in a pipe creates a cold spot ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Electrical motor windings • Example of short circuit in the field winding ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Building Heat losses ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Building Tiles breaking away ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Air leakage Air leaking into building due to poor weather stripping ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Air leakage Air leakage around the frame of a roof hatch ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Moisture in a roof Example of moisture in a roof ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Insulation defects Ice formation in urethane insulation on ammonia tank (-33 °C inside) ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Refractory insulation Worn refractory insulation causing a hot spot on the outside of a trident duct ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Process monitoring Rotary kiln in cement industry ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Furnaces Furnace tubes and burners ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Furnace items – pressure vessel Flange leakage ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Combustion engine Ship Diesel engine running improperly ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Electric motor bearing Overheated motor bearing. Over 80 °C on bearing housing. ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Pump bearing Pump bearing in need of maintenance. ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Belt drive Loose or tight belt heats up abnormally ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Conveyor belts Conveyor belts have thousands of bearings that are sometimes difficult to get close to. ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Tank sediment Sediment in a tank shows up as cool area at the bottom ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Pipe sediment Sediment along the length of this pipe section shows up cool ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Tank levels Indicating the fluid level in a storage tank ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Valves Example of valves in petro-chemical industry ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Heat exchanger Blocked heat exchanger section at the green arrow ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Other applications Medical and veterinary Non-destructive testing Process monitoring Electronics ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Medical ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Veterinary ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Process monitoring Production monitoring and quality control in food packaging, automotive industry, and refrigerator production. ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Process monitoring Plastic bottles: Production monitoring and quality control ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Electronics Overheated conductor on PCB ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Electronics Design verification shows need of redesign before production starts ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Product development Radiator (convector..) core testing ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Product development Play file Brake_disc.avi Testing disk brakes ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Product development Testing tyre design ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Non-destructive testing Visible at surface level Not visible at surface level Play file Composite.AVI Composite material analysis in aerospace industry ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Materials testing Play file Tensile_stress.avi Tensile stress ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Production research Play file Turning_machine.avi Turning machine ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Quality control Studwelding ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Quality control Play file Induction.AVI Induction welding ITC Level 1 Training © Publ. no. 1560097_G-en_GB
Quality control Die casting mould for electric motor ITC Level 1 Training © Publ. no. 1560097_G-en_GB