Transcript life skills presentation

LIFE SKILLS
PRESENTATION
GOWTHAM KUMAR R G
S 3 ECE
34
LIFE SKILLS PRESENTATION
JUST HOW UNSUSTAINABLE ARE WE?
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CAUSES
• Uncontrollable release of GREENHOUSE GASES
• Excessive use of CHEMICAL FERTILIZERS
• DEFORESTATION
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EFFECTS
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Rise in SEA LEVELS
More FREAK STORMS
Massive CROP FAILURE
Widespread EXTINCTION of species
LIFE SKILLS PRESENTATION
WHY NOW???
THE PARIS AGREEMENT , THAT’S WHY!
The Paris Agreement (Accord de Paris) is
an agreement within the United Nations Framework
Convention on Climate Change (UNFCCC) dealing with
greenhouse gases emissions mitigation, adaptation
and finance starting in the year 2020.
It was opened for signature on 22 April
2016 (Earth Day) in a ceremony in New York City. As of
November 2016, 193 UNFCCC members have signed
the treaty, 97 of which have ratified it. After the
European Union ratified the agreement in October
2016, there were enough countries that had ratified
the agreement that produce enough of the world's
greenhouse gases for the agreement to enter into
force.The agreement will take effect on 4 November
2016.
LIFE SKILLS PRESENTATION
SOLUTIONS
• ADVANCEMENTS IN RENEWABLE ENERGY
• INNOVATIONS IN ENERGY EFFICIENCY OF
OUR BUILDINGS
• EFFECTIVE WASTE MANAGEMENT
• CLEAN TRANSPORTATION
• NOPE! NUCLEAR ENERGY IS NOT A SOLUTION
LIFE SKILLS PRESENTATION
HOW ONE GUY MADE A TON OF
DIFFERENCE!
THE GIGAFACTORY!
• The Tesla Gigafactory 1 is a lithium-ion battery factory under
construction, primarily for Tesla Motors.
• The factory started limited production in the first quarter of
2016It will be the world's second-largest building by usable
space
• As of 2014, the projected capacity of Gigafactory for 2020 was
to have been 35 gigawatt-hours per year of cells as well as
50 GWh/yr of battery packs. Production could be equivalent of
supplying 500,000 Tesla cars per year.
• When finished, the factory is planned to produce more lithium
ion batteries in a year than were produced in the entire world
in 2013. THE GIGAFACTORY on its own is one of the major
advancements in our fight against global warming. It is a
pioneering feat in terms of engineering and
scientific advancements.
LIFE SKILLS PRESENTATION
IMPORTANCE OF POWER
ELECTRONICS
• Increasing our emphasis on renewable
sources will solve our problems, to some
extent.
• However conservation of energy along with
more efficient use of energy is the right way
to mitigate our problems.
• Hence power electronics plays an important
role in the energy conservation scenario and
also in industrial automation and efficient
energy systems.
• Power line static VAR compensators, Active
harmonic filters, HVDC systems, Solid State
AC & DC circuit breakers are just some of the
many ways we contribute to the solutions.
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SSCB
• Solid state technology applied to this
traditional device has resulted in circuit
breakers free from arcing and switch
bounce, that offer correspondingly
higher reliability and longer lifetimes as
well as faster switching times. A typical
solid state circuit breaker will switch in
a matter of microseconds, as opposed
to milliseconds or even seconds for a
mechanical version.
• New solid state products currently on
the market utilize the many benefits
associated with power MOSFETs to
deliver a product far superior to earlier
silicon versions. Power MOSFETs offer
low on resistances (as compared to
bipolar transistors), low voltage drops,
low EMI, faster switching times and
good thermal stability of key
parameters.
LIFE SKILLS PRESENTATION
HVDC Transmission
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A high-voltage, direct current (HVDC) electric power transmission system
(also called a power super highway or an electrical super highway) uses
direct current for the bulk transmission of electrical power, in contrast with
the more common alternating current (AC) systems. For long-distance
transmission, HVDC systems may be less expensive and suffer lower
electrical losses. For underwater power cables, HVDC avoids the heavy
currents required to charge and discharge the cable capacitance each cycle.
HVDC allows power transmission between unsynchronized AC transmission
systems. Since the power flow through an HVDC link can be controlled
independently of the phase angle between source and load, it can stabilize a
network against disturbances due to rapid changes in power. HVDC also
allows transfer of power between grid systems running at different
frequencies, such as 50 Hz and 60 Hz. This improves the stability and
economy of each grid, by allowing exchange of power between
incompatible networks.
LIFE SKILLS PRESENTATION
LIFE SKILLS PRESENTATION