Insulated buildings - a new gate way to reduction of carbon foot prints

1. Insulating Buildings: The Magical
Wand for Energy Management
Presented By:
Ankur Mahajan
Department of Electrical Engineering
National Institute of Technical Teacher’s Training & Research,
Chandigarh
Email: ankurmahajan786@gmail.com

2. 0
0.5
1
1.5
2
2.5
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
Metric tons of Carbon dioxide per capita
2007
2008
2009
2010
Carbon Dioxide Emission in India
2011
2012

3. Insulating Buildings
Reduces the cooling requirements by 10% as
compared to conventional buildings.
Improves the Mean Radiant Temperature by
28% thereby increasing human comfort.

4. Insulating Material - Characteristics
Performance
Installation method & Quality
Cost per square feet
Resistance Value
Low MRT
Effect on the occupants & environment

5. Heat Transfer from Conventional
Building Wall- April
Watt/m2 80
70
60
50
West Wall
40 East Wall
30 South Wall
North Wal
20
10
0
1 3 5 7 9 11 13 15 17 19 21 23 1 3 5 7 9 11
Time

6. Heat Transfer from West Side Wall with
Different Insulating Materials - April
Watt/m2 80
70 Type of the Material Heat Absorbed (watt/m2)
Used
60
Concrete Wall 76
50
Concrete Wall
40 4 inch Brick Wall
Brick wall 73
30 4 inch masoury Wall
Exterior Insulated Wall
20
Masoury Wall 38
10
0 Exterior Insulated Wall 5
1 3 5 7 9 11 13 15 17 19 20 21 23 1 3 5 7 9 11
Time

7. Comparison of Heat Transfer from
Interior Insulation of Envelope
Conventional & Insulated Building Wall-
April
 Interior Insulation absorbs much less than
80
Exterior Insulation
70 Watt/m2
 Results – Reduction of Condensation
60
50
40 Thermal Bridge 4 inch Conventional Wall
Exterior Insuated Wall
30
Interior Insulated Wall
20
10
0
1 3 5 8 1012141618202224 2 4 6 8 1012 Time

8. Heat Transfer from Roof with different
Materials- April
Watt/m2 140
Concrete Roof 4 inch
120
100 Concrete Tiles
80 Concrete Tiles with Air
Space
60
Concrete Tile with Al Foil
40
Concrete Tile with 9mm
20 Bubble Foil
Concrete Tile with 9 inch
0 Glasswool
1 3 5 7 9 11 13 15 17 19 21 23
Time

9. Conclusion
 Insulated Envelope will absorb approximately
9 times less heat than conventional building
envelope.
 Reduces the electricity consumption by 50%
approximately for cooling applications.
 Interior Insulation is better than exterior
insulation but has ill- effect on the occupants.
 Reduces the requited size of the air
conditioning system.

10. Future Scope
 Study of new insulating materials with high R-
value.
 Combination of different materials to come
up with a low cost outcome.