The document discusses trends in sustainable building design and low energy buildings. It covers several topics:
1. It describes various trend-setting sustainable building designs from around the world that use techniques like vertical gardens, biomimicry, and seamless indoor-outdoor integration.
2. It discusses the characteristics and goals of low energy buildings, which aim to reduce embodied and operational energy through techniques like passive design, automation, and renewable energy integration.
3. It proposes new sustainability indicators and models for comprehensively assessing the environmental impacts of building materials and construction processes from a life cycle perspective.
3. Mega trends are transformative forces that
define the future world with their far reaching
impact on business, societies, economies,
cultures and personal lives.
16. Zaha Hadid Architects’ Urban
Heritage Administration Centre
takes its design from the
surrounding desert
Studio Dror
designs
Aluminium
geodesic
Biosphere
17. TRENDS OF THE FUTURE
ZERO &
LOW ENERGY BUILDINGS
PRECAST / PEB / MONOLITHIC / MODULAR
HIGH-RISE BUILDINGS
BUILDINGS WITH AUTOMATION
PASSIVE ARCHITECTURE
ERGONOMICALLY DESIGNED BUILDINGS
18. ZERO & LOW ENERGY BUILDINGS
A zero-energy building is a
building where the total amount
of energy used by the building on
an annual basis is roughly
equal to the amount of
renewable energy
created on the site.
A low energy building has low
embodied energy throughout its
life time. World’s lowest energy
building is in Sweden with a value
of about 160 MJ/Sqm
19.
20. SUSTAINABILITY
IN TRUE SENSE Holistic
Integration
of all the three
independent
environmental
entities.
Engineers
focus on the
sphere of
Natural
Environment.
21. Sustainable development
The Conflict !
Development which meets the needs of current
generations without compromising the ability
of future generations to meet their own needs
-World Commission on Environment and Development
INDUSTRIAL
DEVELOPMENT
SUSTAINABILITY
GOALS
INTEGRATION
ROLE OF ENGINEERS AND TECHNOLOGISTS
24. • INDIA PLAYED A MAJOR ROLE.
• 195 COUNTRIES PARTICIPATED
• DEVELOPED NATIONS PLEDGED
• FINACE OF 100 B-USD
• STRIVE HARD TO HOLD GLOBAL
TEMPRATURE RISE BELOW 1.5 DEG
• COUNTRIES WERE BOUND BY INDCs
THEN CAME :
COP 21, THE PARIS SUMMIT, 2015
INDC : Intended Nationally
Determined Contributions
27. DETRIMENTAL EFFECTS
DUE TO GLOBAL WARMING
Fossil Fuel Depletion
Ozone Depletion
Smog
Acidification
Eutrophication
Deforestation, Soil Erosion
Habitat Alteration
Loss of Bio-Diversity
Water Depletion
Ecological Toxicity
Human Health / Carcinogenic
28. PRE USE AND OTHER
PHASES 20 TO 25 %
CRADLE TO CRADLE SYSTEM BOUNDARY
29. ENERGY SCENARIO IN INDIA
• 16% OF GLOBAL POPULATION APPROXIMATELY
• INSTALLED CAPACITY – 160000 MW
• PROJECTED CAPACITY BY 2030 – 800000 MW
• CAPITAL INVESTMENT NEEDED - 1 TRILLION USD
• 66% OF INDIA’S COMMERCIAL BUILDINGS
REQUIRED BY 2030 NOT YET BUILT
NO OTHER COUNTRY IN THE WORLD WOULD
HAVE ENCOUNTERED THIS KIND OF A
GROWTH IN DEMAND.
31. • Annually, 220 billion rupees of CSR money is to be
spent on environmental initiatives.
• Propagate Sustainable Living
• Adopt Eco-friendly Paths / Mechanisms
• Reduce GHG emission by 35% by 2025
• Generate 40% of the total power required using
renewable energy technologies.
• Create additional carbon sink of 2.5 to 3 billion
tonnes by 2030.
• In addition to this India has strategized many GHG
reduction measures.
India’s Intended Nationally
Determined Contributions (INDCs)
32.
33. Understand what LEBs Are ?
• Are they buildings built in modern times ?
• Are they built using modern materials ?
• Are they built with modern facilities ?
• Are they built using contemporary architecture ?
• Are they buildings with automation?
34.
35. Whole Building Life Cycle Analysis :
Involves three methods- Input-out put analysis-Process
Analysis and Hybrid Analysis-First two have limitations-
Third combines both and hence more realistic.
SUSTAINABILITY INDICATORS FOR
ENERGY IMPACT ANALYSIS
TPSI-Tall Building Projects Sustainability Indicator :
Takes into account sub-systems involved in a
construction process. Specialized only for buildings that
are more than 20 floors. This threshold limit is on the
established fact that beyond 20 floors, energy efficiency
dramatically changes.
MIPS – Material Intensity per Service Unit Indicator :
Quantifies ecological disturbances due to technological
interferences using FoM concept.
36. NEW SUSTAINABILITY INDICATORS
FOR ENERGY IMPACT ANALYSIS
Green Building Rating Systems :
Most Green Building Rating systems available today are
criteria based. Whole building process are categorized
into several criteria and credited with points –
Normalizing them into Star Ratings or other
nomenclature. They are good to streamline the
processes but do not accurately measure the impact of
BE on NE.
None of the systems include properties of materials and
integrate them in the assessment process. This lacunae
calls for development of a New Sustainability
Indicator, applicable for entire Built environment with
ease.
37. REDECON 2016 - INTERNATIONAL CONFERENCE ON TALL STRUCTURES
COMPENDIUM OF SUSTAINABLE
INDICATOR INITIATIVE TALKS ABOUT 500 +
INDICATORS
LIVING PLANET INDEX (LPI) : Global Biodiversity
Indicator
ECOLOGICAL FOOTPRINT INDEX (EFI) : Measures Land
and Water requirement to sustain life on earth.
HUMAN DEVELOPMENT INDEX (HDI) : Deals with Social
Dimension, Literacy, Life expectancy etc.
ENVIRONMENTAL SUSTAINABILITY INDEX (ESI) : Quantifies
whether a country is capable of preserving its Natural
Resources
ENVIRONMENTAL PERFORMANCE INDEX (EPI) : Deals with
stresses in human beings due to environmental
deterioration.
38. ESSENTIALLY, LEBS…..
Display seamless connectivity between Indoor and
Outdoor spaces
They are simple, functional and clean
Most structural elements are exposed
More open spaces indoor, Less walls
Aesthetics, utility and economics are balanced
Allow more light and ventilation into the buildings
Use innovative materials
They are Green, Eco friendly, Sustainable.
Less harmful to health
39. Durable and Long Life
Easy to Maintain and Refurbish
Easy to Decommission and Dispose
Self Sustaining in terms of Power
Environmentally responsive
Resource efficient
Better Indoor Comfort
Enhances Human Efficiency
40. Low Energy Construction Materials
Local Resources and Natural Materials
Planning Of Material Procurements
Reduce, Recycle And Reuse
Proper Technologies And Methodologies
Water Saving, Waste Management
Reduce All Kinds of Pollution
Maintain and Operate Building electricity
requirements optimally.
And Many Such Steps………
LEB IMPLEMENTATION
41. STEPS INVOLVED IN DESIGNING A LEB
Prepare Accurate Estimate / BOQ
Normalize The Quantities Per Sqm
Use Inventory Data To Assess The Total EE / EC
Calculate The Sustainability Development Index (SDI)
using appropriate Sustainability Indicators
Establish A Benchmark Project For Datum Values
Assess The Sustainability Level of a Building
Assess Contribution Of Subsystems To The Total Impact
Replace High Impact Contributors With Low Energy
Alternative Materials / Technologies
Reassess and Implement
42. EE TE CO2e
I1 I2 I3
CM vs EE EE vs GW GHG vs CM
SYSTEM INPUTS
QUANTIFICATION
ENERGY AUDIT
APPLICATION
Sustainable Development
Index Expressed in %
ENERGY COEFFICIENTS
SDI= (I1+I2+I3) &
SDI %
Construction Materials and
Construction Process
Material Consumption
Assessment per unit Area of
Construction
INTERACTIONS
SYNERGIC EFFECT
Sustainability Rating System
BMP VALUES
Individual
Building
Materials within
the Building
Infrastructure
Projects
Cluster of
Buildings
MATERIALS
# Extraction
# Processing
# Manufacture
# Transport
# Delivery
# Use
# Maintain
# Dispose
CRADLE TO CRADLE
# Elasticity Modulus
# Material Density
# Cost of Material
# Cost of Construction
# Range Values
FIGURE OF MERIT
PRIMARY
PARAMETERS
# Concrete
# Steel
# Formwork
# Structural Glazing
# Flooring
# Masonry
# Plaster
# Painting
# Waterproofing
# Doors
# Windows
# EmbodiedEnergy
# CO2 Emission
# Transport Energy
# Operational Energy
# EE Coefficient
# EC Coefficient
# DesignPeriod
# Recyclability
ENERGY AUDIT BENCH MARK PROJECT
SUSTAINABILITY
DEVELOPMENT
INDEX MODEL
(SDIM)
WITHIN
THE
SYSTEM
OUTSIDE
THE
SYSTEM
45. SDI = I1 + I2 + I3
I1= √ (ZC x EEC x TEC)
I2= √ (ZC x ECC x TEC x µ)
I3= √ (ZC x EEC x ECC x TEC)
ZC = Figure of Merit as defined in Equation 1;
EEC = Embodied Energy Coefficient = EE / EE (stone)
ECC = Embodied Carbon Coefficient = ECe / ECe (stone)
TEC = Transport Energy Coefficient = 0.00285 / EE
µ = Time Coefficient = EEC x (Design Period / GWP Time Period)
THREE PRIMARY
EQUATIONS
46. • SUSTAINABILITY IS
COMPLEX PHENOMENA
• TOO MANY VARIABLES
• LACK OF DEPENDABLE
DATA
• LIMITATIONS IN
EXISTING ASSESSMENT
TOOLS
In Conclusion
