wind-solar-fuel cell hybrid system
TRANSCRIPT
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WIND-SOLAR-FUEL CELL HYBRID SYSTEM
INTRODUCTIONOVERVIEWFUEL CELL TECHNOLOGYPV MODULE SELECTIONWIND TURBINE SELECTIONSYSTEM DESIGNELECTRICAL EFFICIENCY OF VARIOUS SYSTEM INNOVATIONS FOR FUTURE
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INTRODUCTION:
WHAT IS A HYBRID SYSTEM?
Integration of two or more renewable energy source (In this case) to form a more reliable system is called a hybrid system
WHY SHOULD WE USE A HYBRID SYSTEM?
One drawback with renewable energy sources is their variability
To mitigate this problem we use a hybrid system
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WHEN WILL IT BE EFFECTIVE?
Solar energy will contribute the daytime running of the load and charging of storage device during day.
Wind will contribute its energy during its flow time to the load.
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WHICH IS THE BEST HYBRID AT THIS MOMENT?
Solar energy is the only source of energy that is available almost everyday.
Wind is the second most abundant source. Hence a solar-wind hybrid system would be the
most effective system
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WHERE WILL IT BE EFFECTIVE?
The place of installation must have abundant solar insolation.
The place must have high wind flow rate which must be fairly predictable.
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HOW CAN YOU STORE THE ENERGY?
Traditionally batteries are used for storage. Recent innovations in this field led to the
highly efficient fuel cell technology.
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Performance of Energy Storage Systems
Fuel Energy density Wh/kg
Gasoline 12,300
Natural gas 9,300
Hydrogen 33,000
Lead-acid battery 30
Advanced Lead Acid 48
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OVERVIEW
The objective of this project is to integrate these efficient systems into a single hybrid system for a better energy generation and storage for a 1kW load.
The power generated from wind is the primary contributor with 1kW. In case of deficit, power from PV module is used for compensating the additional requirement.
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FUEL CELL TECHNOLOGY
The type of fuel cell technology designed to be used in this project is a PEM (Proton Exchange Membrane) stack.
The fuel cell is designed for a capacity of 1 kW.
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TECHNICAL SPECIFICATIONS:
CONTENT SPECIFICATION
Number of cells 48
Rated power 1000 W
Performance 28.8V @ 35A
Required Voltage 12V @ 8A
Reactants H2 and Air
Max stack temperature 65˚C
H2 pressure 0.45-0.55 bar
Cooling Air
Flow rate at max output 13 L/min
Efficiency 40% at ambient temperature
Low voltage shutdown 24V
Over current shutdown 42A
Over temperature shutdown
65˚C
Cost 16 lakhs approx.
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WOOD
COAL OIL
NATURAL
GAS
HYDROGEN
H2 CONTENT
H2 CONTENT
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PV MODULE SELECTION
six poly-crystalline panel with a rated power of 250Wp are chosen.
The total power generation from the panels is 1.5kW.
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SYSTEM SPECIFICATION
CONTENT SPECIFICATION
Manufacturer Trina solar
Rated power 250Wp
Type Poly-crystalline
Voc 37.8V
Isc 8.90A
Vmpp 30.5V
Impp 8.20A
No. Of cells 60
Efficiency 15.3%
Cost 12,000 approx
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WIND TURBINE SELECTION
We are using a Vertical Axis Wind Turbine. No sharp blades that may cause accidents
and injuries. No need for a special component for facing
the turbine opposite to wind flow. The start-up speed of a VAWT is low.
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TECHNICAL SPECIFICATIONS:
OBJECTS SPECIFICATIONS
Manufacturer Elsonic India Group
Rated power 1.2kWp
Output Voltage 220VAC
Type VAWT
No. Of blades 5
Rated wind speed 9-11 m/s
Start-up wind speed 3 m/s
Working wind speed 3-25 m/s
Survival wind speed 50m/s
Cost 1.4 lakhs
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EXISTING HYBRID SYSTEM MODEL
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SYSTEM DESIGN FOR THIS PROJECT
PV 1.5KW FUEL CELL 1KW
BATTERY ELECTROLYZER
-VE BUS
+VE BUS (12VDC)
CHARGE CONTROLER
CHARGE CONTROLER
4XCURRENT SENSORS
VOLTAGE SENSOR
1 2 3 54
6 7
CHARGE CONTROLER
INVERTER 1.5KVA LOAD 1KW
1 – H2 SOLENOID VALVE
2 – PURGE VALVE
4 – FC COOLANT FAN
3 – H2 SATURATOR
7 – FC COOLANT PUMP
5 – H2 DETECTOR
6 – FC AIR PUMP
120VAC
WIND TURBINE
1KW
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PV SYSTEM AND FUEL CELL INTEGRATION
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ELECTRICAL EFFICIANCY OF VARIOUS SYSTEM
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INNOVATIONS FOR FUTURE
There are great innovations in the field of wind, solar and fuel cell energy system.
In wind energy the piezoelectric effect can be brought in and flutter turbines that can be installed in domestic places can be made.
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The efficiency of the PV module used can be increased with multi-junction cells, which at this point is very costly but will play a major role in the future.
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Photo electrochemical cell can be integrated with the fuel cell for better energy conversion through direct conversion of light energy into chemical energy.
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THE END – THANK YOU