Zero energy buildings economical and environmental aspects

IEI ppt (MD ASIF AKBARI)

ZERO ENERGY BUILDINGS- ECONOMICAL AND

ENVIRONMENTAL ASPECTS

MD ASIF AKBARI

B.Tech(7th Sem), Student Coordinator (T&P)

KIIT University, Bhubaneswar, india

Pin- 751024+91-7735168092

REASONS FOR CONCERN

1. Standards of energy efficiency in almost all part of the world is extremely low.

2. Most of the countries are heavily dependent on imported oil, a finite resource that is likely to be increasingly expensive in future; consumption also has significant environmental costs.

3. Many of the developing countries have serious balance of payments problem.

IEI ppt (asif,apurva,archana,arpita)


Buildings are the Largest Energy Consumer


1. A net zero energy building can be defined as a building which generates as much energy through renewable sources as much as it consumes from the Grid.

2. During the last 20 years more than 200 reputable projects claiming net zero energy balance have been realized all over the world which extensively utilise the non renewable energy sources to earn the tag of ZEB.

What is a Zero Energy Building?

The Sun carrier OmegaIEI ppt (asif,apurva,archana,arpita)

Bayer Material Science building in Greater Noida


Components of Zero Energy Buildings

Building's orientation on the site, window and door placement.

Wind Effect Stack Effect Combustion and Ventilation



Plantations On The Roof


Insulation on walls and using Light colored roof

Various forms of renewable energy

Solar Energy

• The photovoltaics convert the light energy directly into electric energy by photoelectric effect at the atomic level.

• The solar thermal collectors chosen for this job are flat plate collectors with an efficiency factor of 0.8 and a linear heat loss coefficient factor of 3.5.



Wind Energy• The total kinetic energy

available from wind world-wide is more than 80 times the energy that is being consumed now.

• The wind turbine costs are approximately the same as coal-, natural gas-, and nuclear-based electricity.


Geothermal Energy• The temperature of earth

varies proportionally with depth. We can utilize this temperature to produce limitless energy.

• One percent of the heat contained in just the uppermost 10 kilometers of the earth’s crust is equivalent to 500 times the energy contained in all of the earth's oil and gas resources.


Biogas• It is the most

suitable energy resource as per environmental concern.

• Suitable for rural areas where plenty of organic and inorganic wastes are available, no proper discharging channel is not available.


Comparison

Economical comparison shows that wind energy is most economical amongst all renewable resources mentioned in the graph.


Conclusion• Solar and Wind energy will be the major contributor of renewable energy for ZEB’s owing to their widespread availability.

• Biogas can also be used for our energy needs but its only constraint is that it needs huge quantity of waste and it is also not feasible everywhere.

• Geothermal energy is an upcoming form of energy having great potential to generate electricity but a lot of research still has to be done to tap into its full potential.


Thank you

Zero energy buildings economical and environmental aspects

Technology

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