Download - Solar rickshaw by malik computers daurala
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PINKU KASHYA – MRT14DPME23119
SANDEEP GANSELA – MRT13DPME164
RAJNIKANT – MRT13DPME139
ANKIT – MRT13DPME28
SUBHAM KUMAR - MRT14DPME23095
To design a solar rickshaw which would be manual driven as well as motor driven
using solar energy.
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Why Solar Rickshaw
1.To reduce the effort of rickshaw puller2. To use abundantly available solar power3. To reduce the use of fossil fuels4. Ecofriendly in nature5. High future prospects in Renewable
energy field
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Objective
To design a hybrid rickshaw, manual driven as well as motor driven using Solar Energy to reduce the effort of rickshaw puller. The payload would be 250 kg, two passengers with a driver.
Minimising the weight of the rickshaw.Maximising the surface area of the hood. Selection of motor and other circuitry elements.Selection of solar cells.Circuit design (electrical and mechanical).
This includes:
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IntroductionThe sun provides the earth with energy at a rate of more than
100 000 TW (1 TW = 1012 W). India has high solar insulation, an ideal combination for using
solar energy. This energy can be used to drive a rickshaw. To reduce the effort of rickshaw puller decision has been
taken to assist rickshaw puller with the help of solar driven motors. This can be done in two ways:
Modification / improvement in prevailing rickshaw design. Modification / improvement in solar cells.
Since the field related to improvement in solar cells is confined for scientific research we will purchase solar cells directly from the market and will switch our focus on the mechanical part i.e. Designing the solar rickshaw.
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Mathematical Modeling
Force analysis of rickshaw up the inclined plane
F= µMg cosϴ + Mg sinϴ Power, P=Force (F) × Velocity (V)
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Solar cells and its selection
Solar cells are devices which convert solar energy directly into electricity by photovoltaic effect. The current generation of crystalline and amorphous silicon solar cells has efficiencies between 5% and 17%. Solar cells have been classified into following types:
• Silicon wafer based solar cells • Photo-electrochemical solar cells • Dye sensitize solar cells.
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Battery and its selectionA storage battery is a group of one or more
electrochemical cells which comes in different sizes, shapes and specifications. Some of the commonly used include :
Lead-AcidNickel Cadmium (NiCd)Lithium ion (Li-ion)
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Total daily energy expenditure by Electric Rickshaws
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Battery Specifications
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Electric Motor and its selection
A electric motor converts electrical energy to mechanical energy. Brushless DC motors are powered by direct current and have electronic commutation system rather than mechanical commentators and brushes. The current-to-torque and frequency-to-speed relationships of BLDC motors are linear. 48 volt Heinemann hub motor 1200 watt is selected
48 volt Heinemann hub motor 1200 watt is selected
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CAD Model for Solar Rickshaw
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Specification of Solar Rickshaw
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Sample Calculations
For total (rickshaw + Passengers + Driver) mass, m = 400 kg to run on a flat road (ϴ=0o) running at a speed of 15 kmph/4 mps, the power required is 3136 W.
For the same rickshaw running on an inclined road (ϴ=4o) at the same speed, the power required is 4228 W.
The extra effort to be compensated is 4228 – 3136 = 1092 W. For the selected solar cell, power output per unit area = 168.1
W/m2. Through our CAD model we have achieved roughly 2 m2
generating 168.1 *2= 336.2 W
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Future Aspects
To increase the efficiency of solar cell.
To reduce the weight of the frame and body.
To use light weight high energy density battery.
To use alternator or regenerative braking down the slope to
charge the battery.
To use sensors and actuators for speed control and battery
indicator.
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Thank you