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FUNDAMENTAL OF HEAT TRANSFER

Published byArron Anderson Modified over 7 years ago

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Presentation on theme: "FUNDAMENTAL OF HEAT TRANSFER"— Presentation transcript:

1 FUNDAMENTAL OF HEAT TRANSFER

2 Fundamentals of Heat Transfer
Heat flows from a hot or warm medium to a cold medium in three ways : Conduction 1 Heat transfer through solid or fluid materials Convection 2 Heat transfer involves the physical movement of air Radiation Heat transfer from warm surface to cooler surface through air or vacuum Sunlight Radiation 3

3 Radiant Heat Transfer

4 Radiation Radiant Heat / energy from sun light (IR - heat rays)
Energy strike a object surface, absorbed, temp. Radiation between surface Strike other object surface

5 What is a Radiant Barrier?

6 What is a Radiant Barrier?
Definition …. A radiant barrier consists of a layer of metallic foil, with low emittance, that significantly reduces the transfer of heat energy radiated from “hotter” surfaces to “colder” surfaces (e.g., the deck of an attic to the attic floor). Among the benefits of installing radiant barriers are energy savings, $ savings, and comfort.

7 What is a Radiant Barrier?
How they work … Radiant barriers reduce radiated heat transfer rate by the combination of the low emittance/ high reflectance properties of the foil.

8 What is a Radiant Barrier?
Benefits … “Preventing the sun's radiation from entering through the roof can make a significant contribution to comfort and reduction in cooling bills/needs.” From: Sustainable Building Sourcebook, Chapter: Energy  

9 Industrial Laminates Products
“The Ultimate Choice For Insulation”

10 & Reflective insulation
Difference feature of Radiant barrier & Reflective insulation “The Ultimate Choice For Insulation” SIRIM Certified to MS ISO 9001:2000 Registration no. AR 0385 RIMM

11 Types of \ Foils 1 2 3 4 5 Woven Foil Paper Foil Bubble Foil Foam Foil
Veno Foil 5

12 Types of \ Foils Woven Foil 1

13 Advantage Disadvantage Excellence tear resistant
Light weight and high strength Good vapor barrier No wire netting require for installation Disadvantage Uneven surface Higher shrinkage

14 Types of \ Foils 1 Single Sided Non Fire Retardant Double Sided
Woven Foil 1 Single Sided Alum Non Fire Retardant Double Sided Alum / MPET Alum / Alum Single Sided Alum Fire Retardant Double Sided Alum / MPET Alum / Alum

15 Non Fire Rated Product Structures
Single Sided Aluminium Foil PE Tie Layer HDPE Woven Fabric Double Sided Aluminium Foil / MPET PE Tie Layer HDPE Woven Fabric PE Tie Layer Aluminium Foil

16 Fire Rated Product Structures
Single Sided Aluminium Foil FR Tie Layer FR Woven Fabric Double Sided Aluminium Foil / MPET FR Tie Layer FR Woven Fabric FR Tie Layer Aluminium Foil

17 Types of \ Foils Paper Foil 2

18 Advantage Disadvantage Good surface appearance No shrinkage Lower cost
Easy to tear Low strength Need wire netting to support Moisture sensitive

19 Types of \ Foils 2 Single Sided Non Fire Retardant Double Sided
Paper Foil 2 Single Sided MPET Non Fire Retardant Double Sided MPET / MPET Double Sided Alum / MPET Alum / Alum Fire Retardant

20 Non Fire Rated Product Structures
Single Sided MPET PE Tie Layer Paper Double Sided MPET PE Tie Layer Paper PE Tie Layer MPET

21 Fire Rated Product Structures
Double Sided Alum / MPET Tie Layer Paper Tie Layer + Scrim Alum

22 Types of \ Foils Bubble Foil 3

23 Advantage Disadvantage Good surface appearance Better R-value
Better sound barrier No wire netting require Good vapor barrier Disadvantage Easy to tear Lower strength Higher cost Bulky

24 Types of \ Foils 3 Single Sided Non Fire Retardant Double Sided
Bubble Foil 3 Single Sided Alum Non Fire Retardant Double Sided Alum / MPET Alum / Alum Double Sided Alum / MPET Alum / Alum Fire Retardant

25 Non Fire Retardant Product Structures
Single sided Aluminium Foil + Scrim PE Tie Layer Single Bubble (10mm / 30mm) Double sided Aluminium Foil / MPET PE Tie Layer Single Bubble (10mm / 30mm) PE Tie Layer Aluminium Foil + Scrim

26 Fire Retardant Product Structures
Double sided Aluminium Foil / MPET FR Tie Layer Single FR Bubble (10mm / 30mm) FR Tie Layer Aluminium Foil

27 Types of \ Foils Foam Foil 4

28 Advantage Disadvantage Good surface appearance Better R-value
Better sound barrier No wire netting require Good vapor barrier Disadvantage Higher cost Bulky

29 Types of \ Foils 4 XFR 302A-5 Fire Retardant XFR 302A-10 Foam Foil
Alum/Alum Fire Retardant XFR 302A-10 Alum/Alum

30 Fire Retardant Product Structures
Double sided Aluminium Foil FR Tie Layer Crosslink FR Foam (5mm / 10mm) FR Tie Layer Aluminium Foil

31 Types of \ Foils 5 Single Sided Non Fire Retardant Double Sided
Veno Foil 5 Single Sided Alum / PET Non Fire Retardant Double Sided Alum / MPET Single Sided Alum / PET Fire Retardant Double Sided Alum / MPET

32 Non Fire Rated Product Structures
Single Sided Aluminium Foil PE Tie Layer Leno Fabric PE Tie Layer PET Film Double Sided Aluminium Foil PE Tie Layer Leno Fabric PE Tie Layer Metalised Film

33 Fire Rated Product Structures
Single Sided Aluminium Foil FR Tie Layer FR Leno Fabric FR Tie Layer PET Film Double Sided Aluminium Foil FR Tie Layer FR Leno Fabric FR Tie Layer Metalised Film

34 New Innovation of Radiant Barrier
Introducing … New Innovation of Radiant Barrier

35 Leno Fabric Interlocking of yarns Open weav system Reduce material usage High tear resistant excellence appearance Woven Fabric Non-interlocking yarns Close weav system More material usage High tear resistant Uneven surface

36

37

38 MS 2095:2014 Radiant Barrier and Reflective Insulation Building Materials - Specification

39 Standards for Certification of Construction Material
FOURTH SCHEDULE Standards for Certification of Construction Material

40 Installation method RIMM “The Ultimate Choice For Insulation” SIRIM
Certified to MS ISO 9001:2000 Registration no. AR 0385 RIMM

41 Important guideline To ensure reflective insulation system work, the following installation guideline are important: The low emissivity surface(high reflective surface) face the air gap. Ensure no roof leaking, aluminium will oxidize. 3-6 inch overlapping at the edge. Avoid installation during raining day.

42 SINGLE METAL ROOF SYSTEM
(radiant barrier + Mass Insulation + wire netting) 1 2 3 4 5 6 7 2 1 3 Metal roof Screw Insulation felt 4 5 7 Mass insulation 6 Reflective foil Wire netting C-Purlin

43 SINGLE METAL ROOF SYSTEM
(radiant barrier + Mass Insulation) 1 2 3 4 5 6 2 1 3 Metal roof Screw 6 4 Insulation felt 5 Mass insulation Reflective foil C-Purlin

44 DOUBLE METAL ROOF SYSTEM
(radiant barrier + Mass Insulation) 1 2 3 4 5 6 7 2 1 3 Metal roof 6 Screw 4 Insulation felt 5 Mass insulation 7 Reflective foil C-Purlin Metal roof

45 SINGLE METAL ROOF SYSTEM
(reflective insulation- foam/bubble foil) 2 1 3 Metal roof 1 Screw 2 5 Insulation felt 4 3 Reflective insulation 4 C-Purlin 5

46 DOUBLE METAL ROOF SYSTEM
(reflective insulation- foam/bubble foil) 2 1 3 Metal roof 1 Screw 2 5 Insulation felt 4 3 Reflective insulation 4 6 C-Purlin 5 Metal roof 6

47 SINGLE METAL ROOF SYSTEM
(reflective insulation- foam/bubble foil) 1 2 3 4 5 6 7 2 1 3 4 Metal roof 5 Screw Insulation felt 6 7 Z- spacer Screw Reflective insulation C-Purlin

48 DOUBLE METAL ROOF SYSTEM
(reflective insulation- foam/bubble foil) 1 2 3 4 5 6 7 8 2 3 1 4 5 Metal roof Screw 6 7 Insulation felt Z- spacer Screw 8 Reflective insulation C-Purlin Metal roof

49 RESIDENTIAL PITCH ROOF - OPEN ROOF SYSTEM
(radiant barrier/reflective insulation)

50 DOUBLE METAL CLADDING 1 2 3 4 5 6 7 External metal cladding Screw
C channel metal purlin Mass insulation Reflective foil Airspace Internal metal cladding 1 2 3 5 4 7 6

51 SINGLE METAL CLADDING 1 External metal cladding Screw 2
3 4 5 External metal cladding Screw C channel metal purlin Mass insulation Reflective foil 1 2 3 5 4

52 CONCRETE WALL Concrete slab 1 Mass insulation 2 5 Reflective foil 3 2
4 6 Concrete slab Mass insulation Reflective foil Airspace Wooden purlin 10mm plasterboard 1 2 3 4 6 5

53 EXTERNAL FIBER BOARD WALL SYSTEM
1 2 3 4 6 5 1 2 3 5 4 6 Fiber board Mass insulation Reflective foil Airspace Wooden purlin 10mm plasterboard

54 BRICK WALL SYSTEM 3 4 6 1 2 5 1 2 3 6 4 5 Brick wall Mass insulation
Reflective foil Airspace Wooden purlin 10mm plasterboard

55 End Of Presentation

56 Questions & Answers Session
Quality Assurance

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