This document discusses energy efficient buildings. It outlines objectives like reducing energy consumption and introducing net-zero energy buildings. Buildings account for over 60% of energy usage, mainly for heating, cooling, and appliances. Sustainable factors that can make buildings more efficient include improving the building envelope, optimizing internal layout and orientation, using efficient HVAC systems, incorporating renewable energy generation, and reducing peak energy demand. Case studies of efficient buildings in Norway, India, and the Netherlands are provided. The conclusion emphasizes the important role of civil engineers in representing the earth and finding alternatives to prevent environmental pollution.

1. ENERGY EFFICIENT BUILDINGS
MR. Shaik Nurulla
Assistant Professor
Dept. of CE
Sree Vidyanikethan Engineering College

2. Contents
1.Intro
2.Objective
3.Why is it Important?
4.Sustainable factors
5.Case study
6.Civil engineering motivation
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3. Intro
The building which is designed to make
independent of Energy
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4. 4
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5. 5
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6. Objectives
1. Reduce Energy Consumption.
2. Introduce concept of Net-Zero Energy Buildings.
3. Cost-efficient energy buildings
4. Retrofit existing buildings
5. Reduce countries annual greenhouse gas emissions
6. Save earth from damaged environment.
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7. Why do our Buildings need to Change?
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8. Carbon Emission:
Renewable
Gas
Coal
92% of usage
Produces: High
Carbon
Emission
Examples:
Thermal Power
plants
3% Use
Produces:
Moderate
Carbon
Emissions
Examples:
natural Gas
power plants
5% Use
Produces: No
Carbon
Emissions
Examples:
Alternate
energy sources
using natural
resources and
waste 8
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9. 60% Heating
and Cooling
20% Water
Heaters
10% Other
Appliances
3% Cooking
appliances
4% Fridge
and Freezer
3% Lighting
Energy Consumption
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10. One Can Expect
• Lower energy bills due to less reliance on active heating and cooling systems
• Improved living comfort
• Future proofing of your building asset.
One can Take Advantage of
• Enhanced market appeal to prospective purchasers
• Higher investment returns
• A development that meets best practice standards and more importantly,
community expectations.
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11. Sustainable Factors
1. Building Envelop
2. Internal Layout and Orientation
3. Heating and cooling systems
4. Lighting
5. Renewable energy generation
6. Peak Demand
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12. To maximize the building envelope’s thermal protective
capabilities:
• Insulate walls, floors and ceilings, exceeding current standards.
• Draft-proof any gaps around doors, windows and vents including any opening.
• Consider the use of exposed ‘thermal mass’ of a building to balance a building’s internal
temperatures through heat storage and release.
• Specify high performance windows.
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13. Thermal insulation to walls
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14. High Performance Windows
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15. Internal layout and orientation
 Orient living areas to a northerly aspect or as close to as possible, to take
advantage of passive solar gains during colder months.
 Try to cluster heated rooms together.
 Carefully study the location of your project.
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16. 16
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17. Heating and Cooling System
• Gas fueled systems create considerably less carbon emissions than electricity
fueled systems.
• The efficiency of a heating and cooling system is rated in stars. The higher the star
rating, the more efficient the unit.
• Hydronic heating systems (run by hot water) can utilize the sun’s renewable
energy in the form of a ‘solar-boosted’ heating system,
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18. HVAC
H= Heating
V= Ventilation
AC= Air Conditioning
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20. Lighting
 Ensure living areas, including kitchen and bedrooms, do not require any artificial
lighting throughout the day.
 Familiarize yourself with appropriate lighting requirements for different living and
working spaces.
 Choose energy efficient lights and lamps.
 Install efficient lighting controls such as motion, sound and daylight sensors and time
switches, or a ‘master switch’ that controls several lights, and possibly appliances, at
once.
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22. Renewable Energy generation
In addition to good “green” design and performance, many buildings are now being
designed to generate their own energy to supplement or meet every day's energy
consumption. Council supports these initiatives and recommends exploring onsite
renewable energy production. Renewable energy options include photovoltaic solar panels
and small wind turbines for electricity production, solar hot-water heating systems, and
geothermal systems for space heating and cooling.
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24. Peak Demand
Peak Demand means use of Electricity, when there is heavy need for caused by extreme weather events such
as heat waves and cold snaps.
For Example: In summer the regions of south India uses 35% high electricty (Air Conditioners) while compared
to other seasons
To reduce peak demand
• Installing efficient shading
• Providing good insulation
• Using high efficiency heating and cooling systems.
• Installing photovoltaic panels that produce energy when it is needed most - on a
hot summers day.
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25. Photo Voltaic Cell
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27. 1
Reduce Energy Consumption
and try to utilize waste as an
alternate energy
2
Use Sustainable
energy sources
3
Use fossil energy
efficiently
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28. POWER HOUSE
KJOBO - NORWAY
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29. ITC Green Centre, Gurgon
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30. The EDGE, Netherlands
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31. Civil Engineering Motivation
A Civil Engineer is the first and foremost human being who comes forward to
represent the earth in beautiful manner.
He is the only one who can think for the alternatives in order to prevent the
environment from hazardous pollutions.
So, as a Civil engineers we all strive to safeguard our earth and save earth
Save Earth - Build Zero Energy Structures - save Lives
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