1. What am I going to talk about ?
Reducing Energy
Of buildings by Sustainable
construction techniques & Materials

2. WHY REDUCING BUILDING
ENERGY
Ref: N. K. Bansal, “Energy Security, Climate Change and Sustainable Development”
In India, 24% of primary energy and 30% of electrical
energy is consumed in buildings

3. THE WRONG DIRECTION
If it takes two barrel of oil worth of energy
to extract one barrel of oil beneath 15 km of ocean water
a child will understand: forget about it.

4. ENERGY IN BUILDING SECTOR !
Embodied energy
Operational Energy
Maintenance Energy
Demolition energy
Ref: Life Cycle Energy Analysis of a Multifamily Residential House: A Case Study in Indian Context.
Talakonukula Ramesh, Ravi Prakash, Karunesh Kumar Shukla (NIT Allahabad)

5. WHAT IS EMBODIED ENERGY ?
Ref: http://www.canadianarchitect.com/asf/perspectives_sustainibility/measures_of_sustainablity/measu
res_of_sustainablity_embodied.htm
non-renewable energy
consumed in the acquisition of raw materials,
their processing, manufacturing,
and transportation to site
Mega joules (MJ)

6. #01my
aim

7. UNDERSTANDING SUSTAINABILITY
Comparative study of various building techniques
And assessing them for non-renewable
energy spent

8. IN DETAIL
Comparative study of embodied energy of
different construction techniques

9. OBJECTIVES
1. quantify the embodied energy and construction cost
2. different technique with different construction materials
to understand the effect of different building materials
and variation in the embodied energy and construction cost
of the buildings.

10. #02my
data collection

11. #02.1literature
Data - HUDCO
Life Cycle Energy Analysis of a Multifamily Residential House
By Talakonukula Ramesh, Ravi Prakash, Karunesh Kumar Shukla

12. Allahabad, India

13. THEIR METHODOLOGY
Case Study
Parameters
Data collection
Analysis

14. THEIR CASE STUDY
44 apartments
4 storey height
40m2 floor area flats

15. THEIR PARAMETERS
 Roof - concrete
 Ceiling - concrete
 Window - glass, wood
 External wall - plastered brick, paint
 Ground floor - Marble

16. THEIR DATA
44 apartments
4 storey height
40m2 floor area flats

17. THEIR ANALYSIS
Percentage use of materials
Material embodied energy
Operational energy component

18. #02.2literature cum interview
data- COSTFORD
HUDCO AWARD WINNER: P.B. Sajan & his wife Shailaja Nair’s residence, Powdikonam

19. SITE PLAN
• Sloping site on
top of a hill
• 8.5 cents
• only 20.5 Lakhs

20. http://www.thehindu.com/news/cities/Thiruvananthapuram/national-award-for-costford-projects/article4468726.ece

21. THEIR MATERIALS
Mud (without stabilizers)
Coconut tree
Kattadi (Casuarina) Poles
Bamboo
Country burnt Brick
Reused Wood
Reused Roof Tiles
Mango tree wood
Random Rubble

22. THEIR DATA COMPARISON
44 apartments
4 storey height
40m2 floor area flats

23. THEIR ANALYSIS – DIESEL SAVING

24. THEIR ANALYSIS – ENERGY SAVING

25. #03my
parameters

26. WHAT ARE MY PARAMETERS ?
exploration of relationships among different types of attributes
Structure
Wall
Roof
Flooring
Floor
Baker style housing
Typical kerala housing
Other new typologies (Auroville/Astra)
x

27. #04my
Study set-up

28. TYPICAL PLAN
Sum of value X weight

29. CONDITION
Sum Transforms the input raster into a 0 to 1 scale, indicating the strength of a membership in a set,
based on a specified fuzzification algorithmic value x its importance
Studied for varied: Materials | Techniques | Embodied energy
Same location - Kozhikode
Same climatic condition
Real material and specification

30. ISSUES
building materials production
processes are much less standardized because of
the unique character of each building

31. SOLUTION
Following standards

32. #05further
take away

33. Simulating the HVAC and
Lighting of different
Typology
operation
cost
maintenance
cost
Life cycle
cost
Adding the repair and
Extra operative cost
Overall summation

34. #06thanks
for your time