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Green house building in India
Transcript of Green house building in India
ZAKIR HUSSAIN COLLEGE OF ENGG & TECH
Environmental & Economic Impacts of Building
Consumption of 40% of the world's total energy.
Consumption of 30% of raw materials.
About 20% of timber harvest is going down.
30% of carbon dioxide emission.
16% of fresh water is being depleted.
30% of residents have sick building syndrome.
If we continue to live like we are living now
we'd need two more Earths
to provide all the resources and energy we’d need.
MAX USES OF DAY LIGHT
INSULATE WALLS,FLOORS, CEILING
USE GROUND SOURCE HEAT PUMPS
USE OF SOLAR ENERGY
(Solar Water Heater)
ON SITE POWER
Cell, Wind Turbine)
USE OF GREEN ENERGY
Materials Used In Green Constructions
Obtained by adding wool and a natural polymer found in seaweed to the clay of the brick,
37% More strength than burnt bricks
Resistant for cold and wet climate
Wood chips or slag - a byproduct of steel manufacturing.
Reduces the emission of CO2
Exist to simply protect a building
They spend a large portion of the
day absorbing energy from the sun.
Made from recycled newspapers and cardboard.
Then filled with chemical foam
Insect resistant & fire retardant
Using Bamboo Replacing The Steel Bars
What is Green Building ?
Reuse, Reduce and Recycle of resources
Minimum use of fossil fuel based energy
Heavy construction activities
Increased demand of energy
Building sector is the Major energy consumer
NEED OF GREEN BUILDING ?
Mineral wool insulation
Plastic Fiber insulation
Reduction in emission of Greenhouse gases.
Fly ash brick
Transparent roof / sustainable day lighting
A green building is an environmentally sustainable structure that is designed, constructed and operated to minimize the total environmental impacts.
The goals of a green building:
Use resources efficiently
Protect occupant health and improve employee productivity
Be cost efficient, durable, and comfortable
Reduce waste, pollution and environmental degradation
effective window placement (daylighting) can provide more natural light and lessen the need for electric lighting during the day
florescent lightbulbs and LEDs are more efficient alternatives to incandescent lightbulbs
Onsite generation of renewable energy can significantly reduce the environmental impact of the building
high-performance windows and extra insulation in walls, ceilings, and floors
use high performance materials
appliances and parts that can be easily maintained/replaced
Rainwater and Groundwater
using packed gravel/permeable concrete instead of conventional concrete enhances replenishment of groundwater
using plants and trees through green roofs, rain gardens reduce rainwater run-off
collect, use, purify, and reuse water on-site
ultra-low flush toilets and low-flow shower heads
dual plumbing that recycles water in toilet flushing
use non-sewage and greywater for on-site use such as site-irrigation minimizes demands on the local aquifer
Green Building Materials
Today constructor has the opportunity to
choose from alternative Green building Materials
and make a difference
Relative to products refers to the impact on the Earth`s resource
Benefits for the earth & future generations or not for maximization of profit keywords: reduce, resuse, recycle, renew
Building Simulation Analysis
It includes a detailed study of the following factors:
: estimate the total annual energy consumption of buildings
: study of glazing and fenestration systems to determine their thermal, solar and optical properties.
3.Solar Insolation Analysis
: study of incident solar radiation impacting on building
: It is the process by which the amount of diffused sunlight that enters into the interior of a building is estimated
5.Location Analysis :
enables designers to exploit climatic conditions in order to maintain comfort, minimizing the need for artificial control or the choice of suited materials.
6.Light Pollution Analysis
: artificial light that disrupts ecosystems
The technique which emphasizes these
‘R’s are called as Green Techniques
classified as follows:
1.Structural or civil techniques
2. Electrical techniques
(i) Conservation techniques
3.Special systems/ techniques
Air gap insulation
is a combinations incorporating limestone, fly ash or ground granulated blast-furnace slag.
• The cement industry is actively recovering the energy from wastes by increasing the use of non-fossil fuels such as
refuse derived fuel (RDF)
unrecyclable paper and plastics
meat and bone meal.
Fly ash brick
• This is a fine, glass-powder recovered from the gases of burning coal during the production of electricity
Fly ash brick = fine glass powder+silica+alumina+iron
Fly ash brick mixed with lime and water forms a cementations compound
green roof is three layered
: Type of planting depends on depth of the growing medium layer as well as other factors
: Grain size, water retention, air volume, and weight and nutrient reserves
: This layer retains drains water off the roof, protects the root proof layer
, retains water for times of drought
: Warm roof rigid insulation
: This prevents roots from damaging the waterproofing
Site Area: 1869.3 sq m
Built Up area: 1829.7 sq m
Number of floors: Cellar+Ground+2
1. Grey water Management:-
• All household wastewater, except toilet waste, is called grey water.
• Grey water from washing dishes, showers, sinks and laundry comprises the largest part of residential wastewater. This water when Filtered and recycled can be used in the toilets, or for irrigation
1. Air gap insulation :
• MANY HOUSES ARE BUILT WITH CAVITY WALLS. THERE IS AN
OUTSIDE WALL AND AN INSIDE WALL WITH AN AIR GAP BETWEEN THE
TWO WALLS. THIS IS A GOOD WAY OF PREVENTING THE INSIDE WALL
OF THE HOUSE FROM BECOMING DAMP BUT THE AIR GAP
CAN TRANSFER HEAT BY CONVECTION MAKING THE HOUSE COLDER.
• CAVITY WALL INSULATION FILLS THE AIR GAP WITH A POLYMER FOAM.
THE FOAM IS A TYPE OF PLASTIC MATERIAL THAT HAS AIR TRAPPED INSIDE
IT. THE FOAM REPLACES THE AIR IN THE GAP BETWEEN THE BRICKS
SCOPE OF GREEN BUILDING IN INDIA
• Architects and builders have begun using green principles like water harvesting and waste management in their projects.
• They emphasize the use of eco friendly building materials like fly-ash cement and blocks, steel and tiles, recycled aluminum, bamboo based products, green roofing products and so on.
• On the technology front too, there are a lot of options available to build green homes. Energy saving air conditioners, high performance glass windows, water saving solutions, composting toilets, and efficient building management systems are just some of them
• The use of a photovoltaic array on the rooftop is a good source of alternate energy as are solar thermal arrays
• Now the Indian Green Building Council (IGBC) has introduced a system of rating green homes. This system is India’s first foray in the sector
• CII – Sohrabji Godrej Green Business Centre (CII – Godrej GBC), a division of Confederation of Indian Industry (CII) is India's premier developmental institution, offering advisory services to the industry on environmental aspects and works in the areas of Green Buildings, Energy Efficiency, Water Management, Renewable Energy, Green Business Incubation and Climate Change activities
India’s first platinum rated Green Home