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Solar-Tracking-System-PPT.pptx
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- 2. INTRODUCTION • A solartracker is a device that orients a payload toward the sun. • Payloads can be photovoltaic panels, reflectors, lenses or other optical devices. • In concentrated photovoltaic (CPV) and concentrated solar thermal (CSP) applications are used. • These trackers are used to enable the optical components in the CPV and CSP systems. • The optics in concentrated solar applications accept the direct component of sunlight and therefore must be oriented appropriately to collect energy. • Tracking systems are found in all concentrator applications because such systems do not produce energy unless pointed at the sun
- 3. WHY SOLAR TRACKINGSYSTEMS? • Global warming has increased the demand and request for green energy produced by renewable sources such as solar power. • Consequently, solar tracking is increasingly being applied as a sustainable power generating solution. • Solar Tracking System is a device for orienting a solar panel or concentrating a solar reflector or lens towards the sun. • Concentrators, especially in solar cell applications, require a high degree of accuracy to ensure that the concentrated sunlight is directed precisely to the powered device.
- 4. CONCEPT OF SOLARTRACKERS • Sunlight has two components, Direct beam Diffuse sunlight • The direct beam that carries about 90% of the solar energy. • The diffuse sunlight that carries the remainder the diffuse portion is the blue sky on a clear day and increases proportionately on cloudy days. • As the majority of the energy is in the direct beam, maximizing collection requires the sun to be visible to the panels as long as possible.
- 5. TYPES OF SOLARCOLLECTOR • Different types of solar collector and their location require different types of tracking mechanism. • Solar collectors may be: ▫ non-concentrating flat-panels, usually photovoltaic or hot-water, ▫ concentrating systems, of a variety of types. • Solar collector mounting systems may be fixed (manually aligned) or tracking. • Tracking systems may be configured as: ▫ Fixed collector / moving mirror ▫ Moving collector
- 6. FIXED COLLECTOR /MOVING MIRROR • Many collectors cannot be moved, for example high- temperature collectors where the energy is recovered as hot liquid or gas . • In such cases it is necessary to employ a moving mirror so that, regardless of where the Sun is positioned in the sky, the Sun's rays are redirected onto the collector. • Due to the complicated motion of the Sun across the sky, and the level of precision required to correctly . . • In different applications, mirrors may be flat or concave.
- 7. MOVING COLLECTOR • Trackerscan be grouped into classes by the number and orientation of the tracker's axes. • Compared to a fixed mount, a single axis tracker increases annual output by approximately 30%, and a dual axis tracker an additional 6%. • Photovoltaic trackers can be classified into two types: ▫ Standard photovoltaic (PV) trackers ▫ Concentrated photovoltaic (CPV) trackers. • Each of these tracker types can be further categorized by the number and orientation of their axes, their vertical supports and foundation
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- 9. EFFICIENCY OF SOLARTRACKING SYSTEM • Global warming and the drive to minimize greenhouse gas emissions has put the focus on how to make the most of natural energy sources. • The sun and the wind are freely available almost everywhere in the world. • The electric actuators can help improve the exploitation and efficiency of these sustainable sources of energy. • Solar tracking is an obvious way to improve the efficiency of solar power plants. • As the sun moves across the sky an electric actuator system makes sure that the solar panels automatically follow and maintain.
- 10. SINGLE AXIS TRACKINGSYSTEMS • Solar panels with single axis tracking systems. The panels can turn around the centre axis. LINAK can provide the actuators that tilt the panels.
- 11. DUALAXIS TRACKING SYSTEMS •Dual axis tracking is typically used to orient a mirror and redirect sunlight along a fixed axis towards a stationary receiver. • But the system can also gain additional yield on your PV cells. • LINAK can provide you with quality actuators that move these panels on dual axis.
- 12. CONCLUSION • Uses simple,inexpensive, easy to get 555 timers and LDRs. • The TRACKER not only follows SUN from EAST to WEST and back to EAST in a cyclic manner(Horizontal Motor Module). • Tracks the Angular Movement of the SUN with respect to its ZENITH ANGLE to the Horizon (Vertical Motor Module and EYE). • This is a VERSATILE quality for which the TRACKER could easily be used in conjunction with Solar Panels to derive maximum Solar Energy.
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