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Concept of Sustainability and High Performance
Buildings
23rd March, 2017
Definitions Detrimental Effects Sustainability HPBs LCA Embodied Energy
Contents
Interactions Building Ratings Sustainable Design Green Materials Case Study Conclusion
Natural Environment comprises of all living and non-living things naturally existing in a given environment.
Built Environment, refers to human made surroundings that help human survival with comfort.
Built Environment interacts with Natural environment in various
ways. Throughout their life cycle, from Pre construction to Post
Construction and then demolition, they consume resources in the
form of energy, water, materials, etc. and emit wastes.
Green House Gasses (GHG) A greenhouse gas is any gaseous compound in the
atmosphere that is capable of absorbing infrared radiation, thereby trapping and holding
heat in the atmosphere. By increasing the heat in the
atmosphere, greenhouse gases are responsible for
the greenhouse effect, which ultimately leads to global
warming.
Global Warming
Global Warming is the increase of Earth's average surface
temperature due to effect of greenhouse gases, such as
carbon dioxide emissions from burning fossil fuels or from
deforestation, which trap heat that would otherwise escape
from Earth.
Global Warming
Average Global Temperature
According to NASA, the average Global Temperature on Earth has increased by about 0.8° Celsius (1.4°
Fahrenheit) since 1880. Two-thirds of the warming has occurred since 1975, at a rate of roughly 0.15-0.20°C
per decade.
Global Mean Surface air temperature estimated
14°C (57°F), with an uncertainty of several
tenths of a degree.
Global Warming Potentials (GWPs)
Global Warming Potentials (GWPs) are a quantified measure of the globally averaged relative radiative forcing impacts of a particular greenhouse gas. It is defined as the cumulative radiative forcing – both direct and indirect effects – integrated over a period of time from the emission of a unit mass of gas relative to some reference gas (IPCC 1996). Carbon dioxide (CO2) was chosen by the IPCC as this reference gas and its GWP is set equal to one (1). GWP values allow you to compare the impacts of emissions and reductions of different gases.
Global Warming Potential (GWP)
Urban Heat Island Effect
RECENT COP21 SUMMIT HELD AT
PARIS , CALLS FOR RESTRICTING GLOBAL
AVERAGE TEMPERATURE NOT
TO EXCEED 2 0C.195 COUNTRIES PARTICIPATED.JOINT PLEDGE.
GREAT CONCERN.
Need of the Hour is !!!
LCA - SYSTEM BOUNDARIESC TO G - C TO S – C TO G – C TO C
CRADLE TO CRADLE
Embodied Energy
Embodied energy is the total non-renewable energy that goes into the manufacture of a material and plays a large role in the choice of building materials. It is an important factor to consider when assessing the life cycle of a building and it relates directly to the sustainability of the built environment.
EMBODIED ENERGY (EE)
INITIAL EMBODIED ENERGY
RECURRING EMBODIED ENERGY
OPERATIONAL ENERGY
WE START HERE
COMPLEX ENVIRONMENTAL INTERACTION PHENOMENA
CONSTRUCTION MATERIALS
EMBODIED ENERGY GLOBAL
WARMING
SUSTAINABILITY
SYNERGIC EFFECT
TETRAHEDRON MODEL
BUZZ WORDS OF TODAYEco Friendly Buildings (EFB’s), Green Buildings,
Sustainable Buildings, Energy Efficient Buildings – are a few buzz words in today’s construction scenario. All
these essentially fall under the ambit of one big umbrella
High Performance Buildings (HFB’s)
.
What is a Green Building? A Green Building, also known as a sustainable
building, a High Performance Building, is a structure that is designed, built, renovated,
operated, or re-used in an ecological and resource efficient manner
“A green building is one which uses less water, optimizes energy efficiency, conserves natural resources, generates less waste and provides healthier spaces for occupants as compared to a conventional building”.
Source: shiva9990/energy-efficiency-in-green-building
Protecting occupant’s health
Improving productivity
Using energy, water and other resources more efficiently
Reducing overall impact to the environment
Optimal environmental and economic performance
Satisfying and quality indoor spaces
Objectives of a Green Building
High Performance Buildings in India can be defined as buildings that have integrated bioclimatic solar passive architectural design strategies and energy efficiency measures as recommended by ECBC. When High Performance Buildings integrate Building Automation for optimizing the services and better monitoring, they become :
‘High Performance Smart Buildings’
High Performance Building-HPB
• REDUCED ENERGY & WATER CONSUMPTION
• CONSERVATION OF NATURAL RESOURCES
• LIMITED WASTE GENERATION
• REDUCED POLLUTION LOADS
• IMPROVED INDOOR AIR QUALITY
• REDUCTION OF CONSTRUCTION WASTE
• RECYCLING POSSIBILITY
• BETTER HUMAN, ORGANISATIONAL PERFORMANCE
Advantages / Benefits of HPB
• MINIMIZE RESOURCE CONSUMPTION ( CONSERVE)
• MAXIMIZE RESOURCE REUSE
• USE RENEWABLE / RECYCLABLE RESOURCES
• PROTECT NATURAL ENVIRONMENT
• CREATE HEALTHY NON TOXIC AMBIENCE
• APPLY LIFE CYCLE COST ANALYSIS
• BUILD QUALITY BUILT ENVIRONMENT
Design Considerations
WHAT IS SUSTAINABLE
DESIGN
HPB is the practice of minimizing the impact a building has on the environment
AVERAGE SAVINGS OF GREEN BUILDINGS
High Performance Components
Building Automation Components
• Light controls, Water Control• Access control (Egress and Entry to a house), • Fire detection, Burglar alarm system• Electricity monitoring & control, • Security information including Video Camera• Control of home appliances• Garage Door & Entrance gate operation• Pre-programmed Retractable sunshades• And many more such activities......
Building Automation Features
Good Indoor Air Quality Good Indoor air quality
encompasses factors as maintenance of acceptable temperature, relative humidity, control of airborne contaminants, and adequate ventilation.
Thermal comfort begins with good design, proper building management, and seeks to avoid uneven temperatures, radiant heat gains or losses (e.g., from window areas), draftiness, stuffiness, excessive dryness, or high relative humidity .
Green Building Ratings
A green building rating system is an evaluation tool that measures environmental performance of a building through its life cycle.
It comprises of a set of criteria covering various parameters related to design, construction and operation of a green building.
Each criterion has pre-assigned points and sets performance benchmarks and goals that are largely quantifiable.
A project is awarded points once it fulfils the rating criteria.
Globally, green building rating systems are largely voluntary in nature.
Green Building Ratings
Green Building Rating Systems
BREEAM LEED GREEN STAR CASBEE
Excellent Platinum Six Star
Very Good Gold Five Star S
Good Silver Four Star A
Pass Certified Three Star B+
Two Star B
One Star C
Table showing Grading Points (Source: BRE 2008)
Green Building Rating systems in India
GRIHA (Green Rating for integrated habitat
assessment) is India’s own rating system
jointly developed by TERI and the Ministry of
New and Renewable Energy, Government of
India.
IGBC rates green buildings in four
different categories: IGBC green homes,
IGBC green factory building, LEED India for
new construction, LEED India for core and
shell.
Rating system for buildings based
on 1 to 5 stars scale. More stars
mean more energy efficiency.
Bee has developed the Energy
Performance Index (EPI). The unit of
kilo watt hours per square meter
per year is considered for rating the
building and especially targets air
conditioned and non-air
conditioned office building
BEE (Bureau of Energy Efficiency)
Energy Conservation Building Code (ECBC)
The Bureau of Energy Efficiency (BEE), Government of India, launched the ECBC-Energy Conservation Building Code-in 2007 for commercial buildings with peak demand in excess of 500 kW. Analysis done during the development of the ECBC shows energy savings in the range of 27%–40% in an ECBC-compliant building over a typical commercial building with an annual energy consumption of 200 kWh/m2.
5-APPLICABLE BUILDING SYSTEMS
ENVELOPE
HVAC
LIGHTING
ELECTRICAL POWER
SOLAR WATER & PUMPING
MANDATORY
WHOLE BUILDING PERFORMANCE METHOD (WBP)
PRESCRIPTIVE METHOD
COMPLIANCE APPROACHES
ECBC COMPLIANCE PROCESS
ENVELOPE
HVAC
LIGHTING
ELECTRICAL POWER
India’s First Green Building
Some High Performance Buildings
Perfect blend of traditional and contemporary architecture.
Energy simulation undertaken to orient the building minimizing the heat ingress while allowing natural daylight to penetrate abundantly.
The green building boasts a 50% saving in overall energy consumption, 35 % reduction in potable water consumption and usage of 80% of recycled / recyclable material.
CII – Sohrabji Godrej Green
Business Centre Hyderabad.
The first LEED Platinum rated
green building in India.
Built-up Area1900 Sqm; 4.5
acres plot.
Salient Features
Building Management Systems (BMS) installed for real time monitoring of energy consumption.
The use of aerated concrete blocks for facades reduces the load on air-conditioning by 15-20%.
Double-glazed units with argon gas filling between the glass panes enhance the thermal properties.
Zero Water Discharge Building All of the wastewater, including grey and black water, generated in the building is treated biologically through a process called the Root Zone Treatment System. The treated water is used for landscaping
Materials and Resources 80% of the materials used in the building are sourced within 500 miles from the project site.
Most of the construction material also uses post-consumer and industrial waste as a raw material during the manufacturing process.
Fly-ash based bricks, glass, aluminum, and ceramic tiles, which contain consumer and industrial waste, are used in constructing the building to encourage the usage of recycled content.
Office furniture is made of bagasse based composite wood. More than 50% of the construction waste is recycled within the building or sent to other sites and diverted from landfills.
20% of the building energy requirements are catered to by solar photovoltaic. The solar PV has an installed capacity of 23.5 kW. Indoor Air Quality Indoor air quality is continuously monitored.
The use of low volatile organic compound (VOC) paints and coatings, adhesives, sealants, and carpets also helps to improve indoor air quality.
Salient Features
Salient Features Fenestration maximized on the north orientation Rain water harvesting Water-less urinals in men’s restroom Water-efficient fixtures Energy-efficient lighting systems Roof garden covering 60% of building area Large vegetative open spaces Storm water collection Maximum day lighting
Incr
emen
tal C
ost
6-8 %
and P
ayba
ck
time 4
year
s
Benefits:
No Artificial Lighting in Day time
– 120000 KWh energy savings
per year- Excellent Indoor air
Quality- High Productivity- 20 to
30% saving in usage of potable
water.
Reduction in CO2
emissions-100 tons
/ year
• Rooftop solar panels• Increased insulation• Energy efficient Windows• Programmable thermostats• Low VOCs in paints, • Green building materials• Water efficient plumbing fixtures• Compact florescent lighting• Landscaping with native plants• Water conservation measures• Protected green space
Typical HPBDURING
CONSTRUCTION
SUZLON ONE - BUILDING , PUNE
ITC GREEN CENTER
ECO FRIENDLY CONSTRUCTION
BUILDINGS
CONCEPT STAGE
DESIGN STAGE
MATERIAL SELECTIONIMPLEMENTATION
STAGE
DURING CONSTRUCTION
POST CONSTRUCTION
STAGE
STAGES OF HPB CONSTRUCTION
Integrated approach
CONCEPT STAGE
Design considerations and Energy Conservation Measures strategically vary from place to place as functions of climatic parameters. India has been divided into five climate zones- Hot and Dry, Hot and Humid, Composite, Cold and Moderate. EFBs designed under these varying climatic conditions will also exhibit varying energy efficient features depending on the type of building.
World over, the construction industry is seen as a major consumer of energy resources. As a result, there has been a conscious movement in the industry to address this issue.
Architects and Engineers are trying techniques that are termed :
‘ Eco Friendly Architecture '
CONCEPT STAGE
DESIGN STEPS
1. CALCULATE ACTUAL BILL OF QUANTITIES OF VARIOUS INPUT MATERIALS.
2. USING EMBODIED ENERGY AND EMBODIED CARBON DATA INVENTORY TABLES CALCULATE THE TOTAL ENERGY CONSUMED BY THE BUILDING. ( THIS EXCLUDES OPERATIONAL PHASE OF THE BUILDING)
3. APPLY RECYCLABILITY CRITERIA WHEREVER POSSIBLE.
4. CALCULATE THE ACTUAL ENERGY CONSUMPTION DURING OPERATIONAL PHASE OF THE BUILDING.
5. ARRIVE AT TOTAL ENERGY CONSUMED.
6. REPEAT THE EXERCISE WITH LOW ENERGY ALTERNATIVE MATERIALS TO ACHIEVE LOW ENERGY BUILDING.
MATERIAL SELECTION
WHY ECO-FRIENDLY MATERIALS?
Production of building materials
leads to irreversible environmental
impacts.
Phenomenal growth in the construction
industry that depends upon depletable
resources.
EMBODIED ENERGY
MATERIAL SELECTION
• Choose products with the least toxic manufacturing process
• Choose products that are manufactured with the least energy intensive processes
• Consider reused building materials
• Specify sustainable products, preferably with recycled content
NEW GEN BUILDING MATERIALS
• BENDABLE CONCRETE
• SELF HEALING CONCRETE
• TRANSLUCENT CONCRETE
• ELECTRIFIED WOOD
• BIO ENGINEERED BRICKS
• SENSITILES
• ELECTROCHROMIC GLASS
• LIQUID GRANITE
• CARBON FIBERS
• BIOMIMICRY
• COMPOSITES
• ECO BRICKS
• BASALT RODS
• CONCRETE LUMBERS
• INTELLIGENT FIXTURES
• FACADES AND PANELS
• SOLAR FILMS
• INTELLIGENT FACADES
MATERIALS
ELECTROCHROMIC SMART GLASSMATERIAL SELECTION
Nano technology in manufacture that regulates reflectivity and transparency of
glass.
Green technology, like solar power, may seem pricey up front compared, but over a lifetime of use,
you'll end up saving on energy costs.
Solar PowerMATERIALS
A cool roof improves the interior temperature of a building, either by reflecting intense heat or
trapping the air inside.
Gree
n Ro
ofs
MATERIALS
Rammed Earth Brick
An office building for Leeds, UK that features a modern façade formed from Rammed Earth. The project employs a variety of Passive Design
principles and also harvests solar energy to help run the building’s electrical and cooling systems. The result is a building built-to-last that
showcases the best of passive and active green building strategies.
MAT
ERIA
LS
LIQUID GRANITE
BENDABLE CONCRETE
TRANSLUCENT CONCRETE
SENSITILES
MATERIALS
ELECTRIFIED WOOD
FLYASH UNFIRED -ECO BRICKS BARK SIDINGS AND SHINGLES
MATERIALS
BIO ENGINEERED BRICKSFlip A Switch And An
ELECTROCHROMIC Window Can Change From Clear To
Fully Darkened Or Any Level Of Tint In-between.
SAND AND BACTERIA
FOR HARDENING
MATERIALS
Blocks are stacked without mortar, and the center core of the stacked blocks is filled
with grout to form a solid concrete core that separates the other two air cores.
MATERIALSMortar Less Blocks
AUTOCLAVED AERATED CONCRETE BLOCKS
Benefits:
• Completely recyclable • Precisely dimensioned • Allow rapid construction • Requires less on site adjustment • Increased productivity
MATERIALS
1. High performance Concrete ( HPC )
2. Self Compacting Concrete (SCC)
3. Fiber Reinforced concrete (FRC)
4. Polymer Modified Concrete (PMC)
5. High Volume Flyash Concrete (HVFC)
6. Reactive Powder Concrete (RPC)
7. Self Healing Concrete / Bacterial Concrete
8. Cement and Admixtures
DURING CONSTRUCTION CONCRETE
Steel and Cement are
the most used raw materials on Planet
Earth.Developing Nations:
Steel – 129 Kg /Person/YrCement –222 kg/person/yr
Construction MechanisationDURING
CONSTRUCTION
• Speed of Construction• Timely Completion• Quality Maintenance• Cost Effectiveness• Higher Productivity• Reduced Manpower• Worker Safety
REINFORCEMENT
DURING CONSTRUCTION
MONOLITHIC CONSTRUCTION
The benefits of using aluminum forms are superior to the old method of plywood forming for formed cast-in-place concrete. Apart from the dimensional stability of the forms, the overall quality of the pour seems much better with tighter tolerances.
DURING CONSTRUCTION
SLIP FORM TECHNOLOGYDURING
CONSTRUCTION
PRECAST TECHNOLOGY
DURING CONSTRUCTION
DURING CONSTRUCTION
PRE ENGINEERED BUILDINGS
AUTO LEVEL PLASTERING MACHINES
DURING CONSTRUCTION
A Net - Zero Energy building is one that relies on renewable sources to produce as much energy as it uses, usually as measured over the course of a year.
Net Zero Energy Buildings
SUSTAINABILITY
“ Sustainable development refers to a mode of human development in which resource use aims to
meet human needs while preserving the environment so that these needs can be met not
only in the present, but also for future generations to come”
SLIDESHARE PPT LINKSwww.slideshare.net/sabnisajit/smart-cities-sustainable-devmadurai?qid=a04d6623-41f2-448e-bd8e-3a51d3582cfe&v=&b=&from_search=1
www.slideshare.net/sabnisajit/an-overview-of-emerging-trends-in-construction-technologies?qid=63d1f452-896e-4c47-8c18-0fed6b811b66&v=&b=&from_search=2
www.slideshare.net/sabnisajit/low-enrgy-buildings-as-trend-setters?qid=3e7055fa-122d-4e25-a7b6-249766487ce4&v=&b=&from_search=4
www.slideshare.net/sabnisajit/redecon-2016-international-conference-on-tall-structures?qid=2531e57e-9d76-4421-8da6-38fe37071ed8&v=&b=&from_search=1
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