Transcript Presentation

Green up Your Shopping
Experience
Green Shopping Malls
• ANKIT CHADHA
• PUSHKARAJ DANDE
• PRANAV BHEDI
• JOHANATHAN MATTHEWS
• SHIVRAJ BARIK
Green up Your Shopping
Experience
Green Shopping Malls
• ANKIT CHADHA
• PUSHKARAJ DANDE
• PRANAV BHEDI
• JOHANATHAN MATTHEWS
• SHIVRAJ BARIK
Green up Your Shopping
Experience
Green Shopping Malls
• ANKIT CHADHA
• PUSHKARAJ DANDE
• PRANAV BHEDI
• JOHANATHAN MATTHEWS
• SHIVRAJ BARIK
Green up Your Shopping
Experience
Green Shopping Malls
• ANKIT CHADHA
• PUSHKARAJ DANDE
• PRANAV BHEDI
• JOHANATHAN MATTHEWS
• SHIVRAJ BARIK
1. Solar Grid
Introduction
Solar grids are nothing but an
interconnected assembly of
solar cells, also known as
photovoltaic cells.
These photovoltaic cells consists
of crystalline-silicon panel having
an aluminium frame and glass on the front.
PV cells connected together in a solar panel.
Working
Solar grids use light energy (photon) from
the sun to generate
electricity through the photovoltaic effect.
The structural (load carring) member of a
module can either be
the top layer(superstrate) or the back layer
(substrate).
The commonly used semiconductor in
solar grid is
crystalline silicon.
Efficiency &
Uses
•The efficency of solar grid is upto 40%.
•The main use of solar grid is that it is environment friendly and a renewable source.
Implementation:
•In this mall, solar grids fixed on roof, generates electrical energy used for lightening
the mall.
•Thus saving about $2,460 of electricity on a monthly basis.
1. H2 Fuel Cell
Introduction
 Production of electricity by thermal plants is not a
very efficient method and is a major source of
pollution.
 Galvanic cells designed to convert the energy of
combustion of fuels like hydrogen directly into
electrical energy are called fuel cells.
 Fuel cells are different from batteries in that they
consume reactant from an external source, which
must be replenished.
Working
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Hydrogen and oxygen are bubbled
through porous carbon electrodes into
concentrated aqueous sodium
hydroxide solution.
Catalysts like, finely divided platinum
or palladium metals are incorporated
into the electrodes for increasing the
rate of electrode reactions.
Catalysis plays a very important role
in Hydrogen oxygen fuel cell,
separating the electrons and protons
of the reactant fuel, and forcing the
electrons to travel though a circuit,
generating electrical power.
At the cathode, another catalytic
process takes the electrons back in,
combining them with the protons,
which have traveled across the
electrolyte and the oxidant to form
waste products (like carbon dioxide
and water).
The electrode reactions of Hydrogen
Oxygen fuel cell are given below:
Reaction at Cathode:
O2 (g) + 2H2O (l ) + 4e -  4OH-(aq)
Reaction at Anode:
2H2 (g) + 4OH–(aq)  4H2O(l) + 4e–
Overall reaction is:
2H2(g) + O2(g)  2H2O(l )
Efficiency & CO2
Emissions
• Highly Efficient
• Low Emissions
Applications of Fuel Cells
• Fuel cells have the potential to slip into every kind of
electronic device. A few applications could include:
Cars- as stated before, fuel cells the size of a printer could
provide enough juice to power as well (if not better than) a
combustion engine. Slightly larger units are already in
place in several bus systems across the United States. The
hydrogen for both forms of transportation may be provided
through propane, methanol or natural gas.
•Personal Devices (Laptops, cell phones, hearing aides) fuel cells have the tremendous potential to get into every
electronic device we come in contact with. Fuel cells offer
the possibility of laptops and cell phones with energy life
measured in days or weeks, rather than hours. The fuel cell
is scalable, which means it can go small enough to power
medical devices that normally require battery replacement.
•Stationary Power Production and Backup- larger-scale
fuel cells could allow every city to have its own power
station, rather than a centralized power grid. Power
generation could become so decentralized that each
housing development or apartment complex could be selfsustained with its own power. This would drastically cut
down on pollution and ugly power lines. Hospitals and
airports could (some already do) have backup power
supplies that kick in, in the event of a power failure.
Our Special Thanks to
Prof. Varsha Pawar
for Concept , Encouragement
and Help.