Need To Save: Why Do We
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- Pages: 44
WHY DO WE
NEED TO SAVE
ENERGY?
Without
Energy No Life
EARTH is a finite
system
Nothing is created, Nothing is destroyed Everything is transformed
World's proven oil reserves are
1200 billion barrels
Source : BP Statistical Review of World Energy 2007
+ 600 billion barrels to extract from tar sands in Canada and Venezuela
The world consumption of oil…
…continues to growth 2,5
Rest of the World
2,0 1,5 1,0 0,5 0,0
USA China
Annual Consumption
Annual growth
3,0
Million Barrels of Oil a Day
With a world oil consumption
growth of 1% per year …
s e v ser
e b l wil
n a h e t r l s i s o e e l h t n i … d e t s u a exh
0 4
s
But… Remember! The only thing that we have to fear, it is that the sky might fall on our heads!
… and precisely
In 200 years, we will have released in the atmosphere, the carbon that took nature
600 million years to trap
CO2
1850
1900
1950
2000
The sea level has risen 15 to 20 cm over the 20th century and is going to rise
another 18 to 59 cm by the year 2100
r a We
g n i v i l e
d l r o w a in
a i t n e n o p x e in
h t w o r g l
6.5 billion in 2005 5 billion in 1987 4 billion in 1975
The world
population
is increasing
3 billion in 1960 2 billion in 1930
1 billion in 1800 5 million
10 000 bef. JC
250 million in 1
5 000 bef. JC
0
1000
2005
The world energy consumption is increasing Rnv Energy Nuclear Natural gas Millions of toe
Oil Coal
90% of fossil energy
1 million tonnes oil equivalent = 11.6 MWh
Source : IEA, Mai 2007
Energy cost is increasing
How many Earths do we need ?
In Chinese, "the word « crisis »
is made up of two letters. One represents danger and the
other opportunity"
In only one day, the sun provides the
Earth with the same energy to that consumed by humanity in 35 years
"With Concentrated Solar Power Stations,
one thousandth of the deserts surface
would be sufficient to cover the world’s need in electricity" Hans Müller-Steinhagen Head of the Institute of Technical Thermodynamics German Aerospace Center
These are the electric motors that consume
the most energy in the industry 9%
4%
Electrolysis Lighting Other uses
17%
Electric motors
70
The purchase cost of a motor
is nothing in relation to
its cost of use Purchase cost 2.5% Maintenance cost 1.5%
Energy cost
96
Global Cost of an electric motor
… and these are mainly the frequency inverters that allow
... to reduce the energy invoice while adapting the demand to the need
A centrifugal pump or a fan is characterized by
A flow proportional to the speed
Qαv
Pressure Proportional
to the square speed
p α v²
Power proportional
to the cube speed
Pαv
3
p α v²
/
A centrifugal pump or fan working to its
nominal speed divided by 2, so, to the half of the maximal flow
/
… has an energy consumption
divided by 8
30 up to 40% energy savings
can be realized for a centrifugal pump or a fan
With a frequency inverter the working and service costs decrease
As of today,
the manufactures consuming the most efficient electric energy …
… will be,
the most competitive manufactures tomorrow
Now, you know
Thank You for your attention Philippe Châtel - Lenze
NEED TO SAVE
ENERGY?
Without
Energy No Life
EARTH is a finite
system
Nothing is created, Nothing is destroyed Everything is transformed
World's proven oil reserves are
1200 billion barrels
Source : BP Statistical Review of World Energy 2007
+ 600 billion barrels to extract from tar sands in Canada and Venezuela
The world consumption of oil…
…continues to growth 2,5
Rest of the World
2,0 1,5 1,0 0,5 0,0
USA China
Annual Consumption
Annual growth
3,0
Million Barrels of Oil a Day
With a world oil consumption
growth of 1% per year …
s e v ser
e b l wil
n a h e t r l s i s o e e l h t n i … d e t s u a exh
0 4
s
But… Remember! The only thing that we have to fear, it is that the sky might fall on our heads!
… and precisely
In 200 years, we will have released in the atmosphere, the carbon that took nature
600 million years to trap
CO2
1850
1900
1950
2000
The sea level has risen 15 to 20 cm over the 20th century and is going to rise
another 18 to 59 cm by the year 2100
r a We
g n i v i l e
d l r o w a in
a i t n e n o p x e in
h t w o r g l
6.5 billion in 2005 5 billion in 1987 4 billion in 1975
The world
population
is increasing
3 billion in 1960 2 billion in 1930
1 billion in 1800 5 million
10 000 bef. JC
250 million in 1
5 000 bef. JC
0
1000
2005
The world energy consumption is increasing Rnv Energy Nuclear Natural gas Millions of toe
Oil Coal
90% of fossil energy
1 million tonnes oil equivalent = 11.6 MWh
Source : IEA, Mai 2007
Energy cost is increasing
How many Earths do we need ?
In Chinese, "the word « crisis »
is made up of two letters. One represents danger and the
other opportunity"
In only one day, the sun provides the
Earth with the same energy to that consumed by humanity in 35 years
"With Concentrated Solar Power Stations,
one thousandth of the deserts surface
would be sufficient to cover the world’s need in electricity" Hans Müller-Steinhagen Head of the Institute of Technical Thermodynamics German Aerospace Center
These are the electric motors that consume
the most energy in the industry 9%
4%
Electrolysis Lighting Other uses
17%
Electric motors
70
The purchase cost of a motor
is nothing in relation to
its cost of use Purchase cost 2.5% Maintenance cost 1.5%
Energy cost
96
Global Cost of an electric motor
… and these are mainly the frequency inverters that allow
... to reduce the energy invoice while adapting the demand to the need
A centrifugal pump or a fan is characterized by
A flow proportional to the speed
Qαv
Pressure Proportional
to the square speed
p α v²
Power proportional
to the cube speed
Pαv
3
p α v²
/
A centrifugal pump or fan working to its
nominal speed divided by 2, so, to the half of the maximal flow
/
… has an energy consumption
divided by 8
30 up to 40% energy savings
can be realized for a centrifugal pump or a fan
With a frequency inverter the working and service costs decrease
As of today,
the manufactures consuming the most efficient electric energy …
… will be,
the most competitive manufactures tomorrow
Now, you know
Thank You for your attention Philippe Châtel - Lenze
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