Transcript Global Warming Threats and Power Electronic Based

Global Warming Threats and Power Electronic Based
Energy Technology
Prof. MTE Kahn
NeuroMorphoGenics/NMG Africa
INTRODUCTION
FUEL CELL: ALTERNATIVE
ENERGY GENERATION
ABSTRACT
Following the Kyoto Protocol, the need to reduce greenhouse gasses
was given a prominent awareness of global warming devastating
effects on our planet. A general shifts in climate is refer to as climate
change. Global warming refers specifically to any increase in the global
surface temperature.
Earth is heated by sunlight. Although much of the sun’s radiant energy
is reflected back into space, some of this heat is trapped by gasses in
the atmosphere like water vapour, methane, and carbon dioxide.
Energy conversion processes is the main culprit in increasing the
greenhouse gasses. To put this into perspective the electrical energy
required for domestic and industrial uses consume approximately three
times the energy at the power plant to generate that electrical energy.
That equates to an energy efficiency of about 33%, which is very low.
To mitigate the effect of global warming there is need for researching
and developing more alternative energy sources that will meet the
needs of the present generation without compromising the ability of the
future generations to meet their own needs. Equally important is
improvement on energy conversion processes that is, thriving for
higher energy conversion efficiency through research and development
initiatives. Power electronics systems make these mitigation concepts
possible.
Power electronics is the technology associated with energy
conversion, control and conditioning of electric power by static means
from any available input form into the desired electrical output for the
user consumption. Alternative energy sources such as wind energy,
fuel cell, solar cell, can only be interfaced with the grid or for stand
alone applications through power electronic systems. Power electronic
based energy technology conversion processes can achieve a very
high energy efficiency value greater than 90%. With power electronic
systems, less energy will be wasted which result into less greenhouse
gasses emission consequently protecting our environment from the
global warming effects sweeping across the world.
PROBLEM
SOLUTIONS
CONCLUSIONS
Renewable and alternative energy sources can only be useful through power electronic system interface especially for high power applications such as residential and industrial uses. The
output voltage of such sources can be categorized into varying output voltage and or low output voltage. The use of power electronic based energy technology produces high energy
conversion value, reduces greenhouse gas emissions, protect the environment, enhance sustainable development, improve standard of living, and provide energy security. Such power
electronic system includes dc-dc converter, dc-ac converter, ac-ac converter and ac-dc converter systems. The technology also makes it possible for the deployment of distributed
generation system which can manifest itself as an autonomous or grid-connected renewable energy resources.