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Energy saving in green building
1. A Seminar On
Energy Saving In
Green Building
Department of Civil
Engineering
College Of Engineering And Technology,
Akola (MH).-444104
Presented By :
Mr. Akshay B. Kathalkar
Guided By:
Prof. R.M. Phuke
Head Of Department:
Prof. R.M. Phuke
3. Introduction
Refers to a structure and using process that is
environmentally responsible and resource efficient
throughout a building’s life cycle : from sitting to
design, construction, operation, maintenance, renov
ation, and demolition
Green building – also known as sustainable or high
performance building increases the efficiency with which
buildings and their sites use and harvest
energy, water, and materials.
The Green Building practice expands and complements
the classical building design concerns of
economy, utility, durability, and comfort
An early stages some countries like India facing a effect
5. Green Building Concept
Reduce the overall energy use and maximize potential
for renewable energy supply and use
Minimize waste and maximize re-use and recycling both
during construction and after occupation
Conserve water resources, enhance water
quality, incorporate water sensitive design and minimize
vulnerability to flooding
Minimize polluting emission to water air and soil and
minimize noise and light pollution
Maximize use of material from sustainable sources
6. Comparison Between Green
Building And Conventional Building
Green Building vs. Conventional Building
Externally : both look alike
Building Use: both are same
Differences
1)Concern for human comfort
&indoor environment
2)Operational savings
7. Tangible Benefits
Reduce operating costs
Optimize life cycle
economic performance
Sustainable Saving
Energy Saving : 40%-50%
Water Saving: 20%-30%
Reduction in initial investment
8. Intangible Benefits of Green
Design
Environmental benefits
Reduce impact on environment
Health and Safety Benefits
Enhance occupant comfort
Improve the productivity of occupant
10. Cooling Load Components
A Break Up Of The Heat Gain Through
Various Building Components
3%
16%
26%
55%
wall conduction
Glazing Conduction
Internal Gains (Light, People, Computer
4th Roof ConductionQtr
12. Orientation Of Building
Sitting of buildings to maximize access to solar
gain and minimize over shading
Providing shelter from prevailing winds in the
from of trees or landscape design
In cold region incorporating heavy internal
walls to store the heat from solar gain
14. Orientation Of Building
Minimize the outer
surface of the
building direct
towards sun it help
in summer season
to minimize the heat
conduction and
radiation.
15. Orientation of Building
The main living are located on the southern
facing side and bedroom on north of the
building
17. What is U- Value
The value is a measurement to express the
heat loss factor of a material
The lower the U- value, the less heat can be
transmitted through the material
Unit in SI: W/M2K or W/M2C
Formula:
U(element)=1/(RSO +RSI +R1+R2)
RSO is fixed external resistance
RSI is the fixed internal resistance
R1,R2 is the sum of the resistance of the
building material in the construction
20. U- Value of Convectional Material
Wall & Roof
1.
U value: 1.95 W/m2 deg K
2.
Heat storage is higher Due to higher mass
Concrete Roof
1.
U value: 2.5-3.0 W/m2 deg K
Hence we want alternative material to
balance it to some extent
1.
Effective Roof in flat building
2.
Efficient wall in multi-storey building
3.
Advance Glazing System
21. Wall Option
Brick wall with insulation
1. Extrusive polystyrene, Expanded
Polystyrene (thermocol), Glass Wool etc.
Brick wall with air cavity
Hollow blocks
Autoclaved Aerated Concrete Blocks
Saving Potential 3-8%
22. Insulation Materials- Relative UValue
Glass wool stuffed:
U -Value: 0.25 W/m2 deg C
(150mm thick)
Thermoco:
U- Value: 0.3 W/m2 deg C
(100 mm
thick)
Extruded Polystyrene:
U- value: 0.028W/m2 (60mm thick)
23. Brick Wall With Air Cavity
The reason cavity insulation keeps heat in is
that the polymer and air in the cavity are good
insulators
The increase of sound proofing.
24. Hollow Blocks
Hollow block needs low maintenance
High Durable
The painting and color of hollow blocks withstand many
years for external environmental factors.
The construction speed is high when compare to
conventional construction systems
It has high tensile strength.
Economical friendly
It maintains the thermal balance, air conditioning system
of any hollow block construction.
It reduces the labour cost and total construction cost
High heat and water resistant
Hollow block construction is technological eco-friendly
construction.
25. Autoclaved Aerated concrete
Block
1.
1.
2.
1.
2.
AAC Block:
It is composed of fly ash, cement , lime
Aluminum powder and water
Unique property:
Low U- Value: 0.67 W/m2°K
Reduction in temp possible:4-5°C
Economic Benefits:
15-20% saving in A/c Load
Saving in Cement
26. Advanced Glazing System
Consist of two sheet of glass is spaced apart
with hollow aluminum frame
The space between the panes may contain dry
air, or be a partial vacuum, or be filled with
argon gas.
Argon gas is a low cost, clean, nontoxic, naturally occurring gas with a lower
thermal conductance than air.
Spacing is
10-16mm
27. High Efficiency luminaries &
Lighting Controls
Hybrid Solar Lighting
Fiber Optical Lighting
LED Lighting
28. Hybrid Solar Lighting
Hybrid Solar Lighting with tracking distributes
natural light within the interior of buildings and
is fully integrated into the existing artificial
lighting systems
Therefore, Hybrid Solar Lighting delivers the
benefits of the natural lighting with the
convenience and reliability of artificial light
29. Hybrid Solar Lighting
In any building where a
comfortable and healthy
indoor environment or
energy efficiency plays a
role
30. Fiber Optical Lighting
Fiber optic cables carry only light to the point of
illumination. The illuminator and the electricity
that powers it can be many yards away from the
objects or areas being lit.
For fountains, pools, spas, steam showers or
saunas - fiber optic systems are the safest way to
provide illumination.
31. LED Lighting
Because modern LEDs are staggeringly more
efficient than other types of lighting, they can
save you major money on your electric bills.
For example, one 6-watt LED produces as
much light as the 50-watt incandescent bulb
that it replaces, and that increase in efficiency
will mean a big drop in your electric bill.
32. Use The Renewable Energy
1.
2.
3.
Use the Advance technology in building for
saving convectional electricity by use of
renewable energy sources:
Solar energy
Wind energy
Geo thermal energy
33. Solar Energy
To achieve the stringent goal of net zero
energy for this building.
The high-efficiency SunPower E-Series solar
panels were installed on the building with a
five-degree tilt to fully optimize.
34. Geo Thermal System
1. Refrigerant: Envoi mentally Safe Anti – Freezing
liquid(water +poplyene glycol)
2. Polyethylene pipes underground, Life 50 years
3. Length of pipes depends on area conditioned
Saving Potential 30 -50%
37. Conclusion
Green building is a financially, health, and
most importantly environmentally responsible
idea that more people need to adopt.
The India Green Building Council developed
LEED in order to help
customers, designers, and builders to work
together to create buildings with the minimal
impact on the environment possible.
Build the Green Building to undertaken think
for “Human Comfortable with eco –friendly”
Use the Fiber lighting and solar electricity
38. Reference
McGraw Hill Construction, Green Building Smart Market
Report, 2006 Source: U.S. General Services Administration –
survey of 12 portfolio buildings;
Akshay Urja Renewable energy (Magazine), Vol. 6 ,Feb
2013, pg No.32-34
A. Pettinau, F. Ferrara, C. Amorino, CO2-free hydrogen
production in a coal gasification pilot plant, 1st International
Conference on Sustainable Fossil Fuels for Future Energy –
S4FE 2009
•
Internet Source
www.fchea.org
