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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
Content














Introduction
Green Building Concept
Comparison bet. Green Building & convectional
Building
Tangible Benefits
Intangible Benefits of Green Design
Building Energy Consumption
Cooling Load Components
Approach
Conclusion
Advantages
Reference
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,
renovation, 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


Green building is energy saving building in
electricity power consumption
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
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

Tangible Benefits





Reduce operating costs
Optimize life cycle
economic performance
Sustainable Saving

Energy Saving : 40%-50%
 Water Saving: 20%-30%
 Reduction in initial investment

Intangible Benefits of Green
Design



Environmental benefits
Reduce impact on environment



Health and Safety Benefits
Enhance occupant comfort



Improve the productivity of occupant


Building Energy Consumption
5%
16%

22%

57%

Air
conditoning
Area Light

Break-up of Enegry Comsumption in
Building
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
Approach
1.
2.

3.

4.

Orientation
Envelope Measure
Wall, Glazing, shading, , Roof
Equipment & System
Lighting
Control
Temperature, Humidity
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
Orientation Of Building


Maximum wide overhang toward East & West
for sun ray cutter i.e. shading
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.
Orientation of Building


The main living are located on the southern
facing side and bedroom on north of the
building
Envelop Measures



1.

High Glazing
Tremendous day lighting, Heat ingress
need to balance
High Performance Glass & Glazing
Low U- Value
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

U- Value


Heat transfer due to temperature difference
(conduction)
Typical U-Value
Of single glazing
glass(6mm): 5-6
W/M2C

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
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%

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)

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.
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.
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
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
High Efficiency luminaries &
Lighting Controls




Hybrid Solar Lighting
Fiber Optical Lighting
LED Lighting
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
Hybrid Solar Lighting
In any building where a
comfortable and healthy
indoor environment or
energy efficiency plays a
role
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.
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.
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
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.
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%
Lower Operating Costs
Advantages Of Green Building
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
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
Thank

You

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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
  • 2. Content            Introduction Green Building Concept Comparison bet. Green Building & convectional Building Tangible Benefits Intangible Benefits of Green Design Building Energy Consumption Cooling Load Components Approach Conclusion Advantages Reference
  • 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, renovation, 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
  • 4.  Green building is energy saving building in electricity power consumption
  • 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 
  • 9. Building Energy Consumption 5% 16% 22% 57% Air conditoning Area Light Break-up of Enegry Comsumption in Building
  • 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
  • 11. Approach 1. 2. 3. 4. Orientation Envelope Measure Wall, Glazing, shading, , Roof Equipment & System Lighting Control Temperature, Humidity
  • 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
  • 13. Orientation Of Building  Maximum wide overhang toward East & West for sun ray cutter i.e. shading
  • 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
  • 16. Envelop Measures   1. High Glazing Tremendous day lighting, Heat ingress need to balance High Performance Glass & Glazing Low U- Value
  • 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 
  • 18. U- Value  Heat transfer due to temperature difference (conduction)
  • 19. Typical U-Value Of single glazing glass(6mm): 5-6 W/M2C 
  • 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

Editor's Notes

  1. IGU : Insulated Glazing Units