December 2 nd 2020 Thermal imaging get free training borrow a - - PowerPoint PPT Presentation

▶
december 2 nd 2020 thermal imaging
SMART_READER_LITE
LIVE PREVIEW

December 2 nd 2020 Thermal imaging get free training borrow a - - PowerPoint PPT Presentation

Sep 24, 2023 235 likes •533 views

December 2 nd 2020 Thermal imaging get free training borrow a camera find thermal leaks See your home in a new light: understand thermal problems and fix them improve comfort cut bills & carbon emissions IR

slide-1
SLIDE 1

December 2nd 2020

slide-2
SLIDE 2

Thermal imaging

  • get free training
  • borrow a camera
  • find thermal leaks

See your home in a new light:

  • understand thermal problems

and fix them

  • improve comfort
  • cut bills & carbon emissions
slide-3
SLIDE 3

IR Thermometer Thermal Camera

1 160 pixels

Both measure apparent surface temperatures show thermal effects of deeper structures

£20-£60 £500-£5,000

slide-4
SLIDE 4

Interpreting Building images:

  • insulation problems
  • draughts
  • heating systems
  • Electrics
  • damp
slide-5
SLIDE 5

Ideal Conditions for Use

  • Indoors >10°C warmer than out
  • Enough light for visible images
  • No direct sun, rain or strong winds
slide-6
SLIDE 6

Uses of Cameras: Insulation Problems

Loft insulation missing or thin Poorly insulated loft hatch

From inside: blue,cold = leaky

5, 7 °C difference is significant

Looking up at top-floor ceiling

slide-7
SLIDE 7

Cold Bridge

Front Door Hall Carpet

  • something conductive through the insulation

Stone Threshold: Cold Bridge

slide-8
SLIDE 8

Draughts

Cold draught under door Typical feathery edge

slide-9
SLIDE 9

What’s wrong?

Air in top of radiator

Normal radiator

slide-10
SLIDE 10

Electrics

TiR Charger

slide-11
SLIDE 11

Using the TI Cameras YouTube videos: TiR TiR105

slide-12
SLIDE 12

Using the TI Cameras – Key Points

START

  • Hold power button, beep, lens cap

CHECKS

  • Battery: top-left of screen. Charge socket under flap
  • File format: check via menus & select jpg or bmp
  • Picture-in-picture: thermal & visible? via IR-Fusion menu

IMAGES

  • Focus: TiR with ring by lens, TiR105 fixed, ok if >4ft
  • Take a picture: pull trigger AND confirm to save it
  • Copy from SD card, IMAGES\TI to PC. USB adapter if needed
slide-13
SLIDE 13

Questions? 1

slide-14
SLIDE 14

Manual

Useful for comparisons & if there are temperature extremes in view locks the current temp range

  • Point camera away from temp extremes
  • Switch to manual: hold F1 >½ sec
  • F3 rescales to hottest & coldest in view

Back to Auto: hold F1 >½ sec

Auto easy

Constantly re-adjusts range to hottest and coldest temperatures in view Colour / Temperature scale changes

slide-15
SLIDE 15

Using Manual Range

YouTube Video

slide-16
SLIDE 16

Auto / Manual – Key Points

  • Auto always adjusts range to hottest and coldest in view
  • If these include temperature extremes, try Manual:
  • Holding F1 switches Auto <-> Manual
  • F3 rescales manual range to temperatures then in view
slide-17
SLIDE 17

Emissivity, ε

But bare metal ε ≈ 0.2 - 0.5

(& reflective)

concrete ε≈ 0.54 expect a wrong temperature: 32.4°C because of low emissivity and reflections, if shiny: glass too Stick on PVC electrical tape to measure ‘real’ temperature: 95.0°C

Recently-boiled stainless steel kettle

How much a surface radiates IR, as expected for its temperature Most building surfaces: brick, wood, paint: ε ≈ 0.95

slide-18
SLIDE 18

Gotchas 1

Reflections in glass: Loft Insulation: poor - warm Wall insulation good -cool

From outside: Hot = leaky

slide-19
SLIDE 19

Gotchas 2

Shiny metal Temperature errors Refections

slide-20
SLIDE 20

Gotchas 3 Why are the houses so different?

Different Internal Temperatures?

slide-21
SLIDE 21

Gotchas 4

Sun, rain, snow, wind & thermal mass: effects can linger Hot because of sun, not heat leakage from house

slide-22
SLIDE 22

What Problems?

Radiator inside without reflective foil Draughty windows

slide-23
SLIDE 23

Questions? 2

slide-24
SLIDE 24

Booking a camera & Covid safety

slide-25
SLIDE 25

Questions? 3

slide-26
SLIDE 26

From Ambition to Action January & February 2021 3 seminars providing practical guidance to Cambridge businesses and organisations on embedding sustainability into their business model. Cambridge Climate Change Charter – Mass Sign up Day December 12 2020 December 12 marks five years since the signing of the Paris Climate Agreement. To mark the day we're encouraging a mass sign up to the Cambridge Climate Change Charter.

Events

slide-27
SLIDE 27

More Online Thermal Imaging Training Thu 14th Jan, 7.30-9.00pm Tue 23rd Feb, 6.00-7.30pm

Events

slide-28
SLIDE 28

Book a camera & find thermal imaging resources

www.cambridgecarbonfootprint.org/what-we-do/thermal-imaging

Other links & resources

Calculate your carbon footprint & take action on climate change

www.cambridgecarbonfootprint.org/charter

Support local climate change action & future CCF events

www.cambridgecarbonfootprint.org/donate

More information & booking

www.cambridgecarbonfootprint.org/what-we-do/events