the advantages and disadvantages of conventional energy and green energy showing that the benefits of green energy is more than the conventional one ,,, showing also the disadvantages of the green one and how to cover it

1. Team no. 79Team no. 79
Is honored to present to you a research aboutIs honored to present to you a research about
The names of the team members -:
Mahmoud Mohamed Awd
Amr Anower
Muhammed Abd El-Hady
Mohamed Essam El-shirif
Mahmoud Mowafy
Mahmoud saeed El-said

2. And as we said always come over ; so human start to search
the new thing that help us to continue our life alive .
That was by finding new way called
Many ways found to get an alternative fuel involves
“sunlight , wind , rain , tides , waves & geothermal heat “
So … thermal is limited , solar & wind energy low in
efficiency
Then let’s find out which isThen let’s find out which is

3.  The whole world is now using the idea of Alternative Fuel due to the incrementThe whole world is now using the idea of Alternative Fuel due to the increment
of fossil fuel pricesof fossil fuel prices
 Using Alternative Fuel gives us many advantages as it saves moneyUsing Alternative Fuel gives us many advantages as it saves money
and reduces the usage of fossil fuel and also using wastes that has noand reduces the usage of fossil fuel and also using wastes that has no
usage to produce extra energy .usage to produce extra energy .
 The used materials usually are Agricultural waste, Rice Straw ,The used materials usually are Agricultural waste, Rice Straw ,
Consumed Tires, Sewage wastes and RDFConsumed Tires, Sewage wastes and RDF
 The Alternative Fuel materials are added with Natural gas or Diesel toThe Alternative Fuel materials are added with Natural gas or Diesel to
produce more energy reducing the amount of primary fuel required toproduce more energy reducing the amount of primary fuel required to
run the Oven .run the Oven .
 Idea of Alternative Fuel is already been used in Egypt in many factoriesIdea of Alternative Fuel is already been used in Egypt in many factories
alreadyalready
Alternative Fuel

4.  An Alternative Fuel unit has been already installed and tested atAn Alternative Fuel unit has been already installed and tested at
InterCement company in Alexandria .InterCement company in Alexandria .
 The unit managed to reduce the required natural gas by 20% and it’sThe unit managed to reduce the required natural gas by 20% and it’s
expected to reach 25% with some moThe difications .expected to reach 25% with some moThe difications .
 This unit uses 12 tons of Alternative fuel per hour “11 tons of agriculturalThis unit uses 12 tons of Alternative fuel per hour “11 tons of agricultural
and other biomass wastes and 1 ton of Tire chips “ .and other biomass wastes and 1 ton of Tire chips “ .
 The main advantages : 1-useless wastes , 2-using filters
 Disadvantages & Solutions :
1-the difficulty of separating RDF and shredding Tiers into
small chips so they can be added to the burner.
Solution : building units to get the materials of alternative
fuel ready for the burner to be used .

5. Solution : using high quality filters to separate these
emissions in a safe way and there are 2 types used :
I. Type 1: Electro static pre separators:
 Which is applying high voltage between thick metal sheets that will
attract emitted ions & carbon dust then high power hummers hit the
sheets so ions and carbon dust fall into the bottom and become easy
to be collected .
I. Type 2: bag filters:
 The general idea is the double benefit :saving primary fuel
and money ,and getting rid of the wasted materials that pollutes the
environment . So both industry and environment are winners in this
case .
2-it can cause small reduction of production quantities due
to the need of controlling emissions like CO2 , SO2 and CO

6. Solar Thermal Energy :-
Advantages of Solar Thermal Energy:
1)No Fuel Cost 2) Predictable
3) Using Existing Industrial Base
4) No Pollution and Global Warming Effects
Disadvantages of Solar Thermal Energy:
1)High Costs 2) Water Issue
3) Ecological and Cultural Issues
4) Limited Locations and Size Limitations 5) Financing
6)Future Technology has a high probability of making CSP
Obsolete
7) Long Gestation Time Leading to Cost Overruns
SIDI KRIRSIDI KRIR

7. Reviews on sidikrir power station
Project (US$
million except $
per
kW below)
SidiKrir
Total project
costs
417.8
$ per kW* 612.61
Equity 139.2
Total debt 278.6
Local debt 164.3
International
(private) debt
114.3
Annual Energy
output MWh
YEAR
2,091,542 2000
2,654,489 2007
2,931,094 2010
Carbon Dioxide
emissions_kg
year
963,687,000.00 2000
1,201,980,000.00 2007
1,317,670,000.00 2010
Primary fuel type Natural Gas
Fuel type Heavy Fuel Oil + and
Natural Gas
Generation capacity elec
trical MW
320 MW
Intensity kg CO2 per
MWhelec
452.685 kg (0.453 tonne)
Intensitynextdecade kg
CO2 per MWhelec
449.51 kg (0.45 tonne)
It all depend on report was published in 2005.

8. Finally,Time for Renewable Energy !!All the energy carriers discussed above are either fossil
fuels. They are not renewable because they are not “refilled”
by nature, at least not in a useful amount of time. In
contrast, renewable energy carriers are energy carriers that
are replenished by natural processes at a rate comparable
or faster than its rate of consumption by humans.
Consequently, hydro-, windand solar energy are renewable
energy sources.
WIND ENERGY VS. SOLAR POWER – WHICH IS RIGHT FOR YOU?
• It really depends on your geographical location and energy
requirements, but given the substantial investment involved
with either option, it’s critical to select the right system for
your needs from the outset. Getting it wrong can cause you
not only great expense, but major headaches.

9. We take The Ivanpah Solar Electric GeneratingWe take The Ivanpah Solar Electric Generating
System as an example :System as an example :
Solar field
Type CSP
CSP technology Solar power tower
Collectors 173,500
Site area 3,500 acres (1,420 ha)
Site resource 2,717 kW·h/m2
/yr
Power generation
Units operational 3
Make and model Siemens SST-900
Nameplate capacity
Unit 1: 126 MW
Units 2 and 3: 133 MW
each.
Planned: 392 MW gross,
377 MW net
Capacity factor 31% (planned)
Annual generation 1,079 GW·h(planned)

10. Wind EnergyWind Energy
The Roscoe Wind Farm as example
• Wind power is the use of air flow through windWind power is the use of air flow through wind
turbines to mechanically power generators for electricity.turbines to mechanically power generators for electricity.
• Wind power, as an alternative to burning fossil fuels, isWind power, as an alternative to burning fossil fuels, is
plentiful, renewable, widely distributed, clean, producesplentiful, renewable, widely distributed, clean, produces
no greenhouse gasno greenhouse gas emissions during operation, and uses little land.emissions during operation, and uses little land.
• The net effects on the environment are far less problematic thanThe net effects on the environment are far less problematic than
those of non renewable power sources.those of non renewable power sources.

11. located 200 miles (320 kilometers)
wind turbines number 634
total installed capacity 781.5 MW
cost more than $1 billion
Roscoe was constructed in four phases.
The first phase, Roscoe, was constructed in 2008 and
consists of 209 Mitsubishi 1 MW turbines.
 Phase two is called Champion was also completed in
2008 and includes 55 Siemens 2.3 MW machines.
The third phase is called Pyron. Its 166 GE 1.5 MW
turbines were commissioned in mid-2009 shortly before
the fourth phase, Inadale, was completed. Inadale adds
197 more Mitsubishi 1MW turbines to the existing
project.

12. We can see from all The Previous Examples That :-We can see from all The Previous Examples That :-
Even solar or wind Energy is better but low in efficiency
, they came over Thermal one
 The Best Renewable Energy for Egypt is solar .. Why ?? :-The Best Renewable Energy for Egypt is solar .. Why ?? :-
Egypt has The eastern & western deserts .. We can use it in
solar energy by building it in wide range so that we can
came over efficiency by numbering
But that dosen’t mean that we can’t use wind energy :-But that dosen’t mean that we can’t use wind energy :-
we have a wide coast we can also use it in producing
electricity by wind energy by using the two kinds of wind
tower “on shore or in sea”