Thursday, 3 November 2016

Tilt Sensors: A Widely Used Technology for Solar Tracking

Tilt sensors considerably impact the CSP, i.e. the output of solar power plants and thus, are basically used for solar tracking technology. Although the necessity of solar tracking and the improvement in production because of it is proven, there are many confusions around how these systems actually function and what the predicted profits out of them. So, just read on to know the efficiency of the tilt sensors and its role in solar tracking technology:
Significance of solar tracking system:
The power output relies on the panel orientation in respect of the sun in case of solar power plants. As the incorrect arrangement extends beyond a point, the output begins falling smoothly. To be exact, the output of the solar panels falls with the angle’s cosine between the panel and the incident radiation.
The misconception is that the most of the solar power we get only in the noon times. Even, solar research has shown that the power available amid evenings and early mornings are hardly half of the power available amid noon time. Even, the inclination angle at which optimal power may be predicted also of the function of season and location. Solar tracking’s absence implies most of this power is lost because of incorrect arrangement between the collectors and the sunlight.
In India, solar energy is available abundantly for most of the year. However, in other parts of the universe, because of poor availability of solar energy, not getting solar tracking system causes poor power output and thus large payback periods. Even, the use of Solar Tracker in India can essentially increase the power output resulting in quick recouping of the investments done.
Solar tracking can increase the solar power plants’ output by 10-25% relying on the area and climatic conditions. If there is place constraint, more yield can be accomplished utilising solar tracking systems.
Role of tilt sensors in solar tracking technology:
Although various methods can be utilized for Solar Tracking, tilt sensors are possibly the most widely utilised technology.
What makes tilt sensors the desired option for this application more than other technologies? Few features of tilt sensors mentioned below show them an ideal fit for this application:
  1. Tilt sensors are cost-effective, easy-to-install-and-use and compact. Their price is lower than the price advantages one reaps out of them, justifying their utilization for this application. Besides, optical encoders are not easy-to-install and incorrectly arrangement during the installation can make a fixed error in the output unless corrected.
  2. Tilt sensors give a digital output which can be fed straight to controllers for controlling the collectors’ orientation. The output stays correct over the period. Since the optical encoders are relative angle sensors, function over the time can make a small error in the output which may slowly maximize.
3. Tilt sensors are weathered, and thus, bear rains, heat and other high weather conditions. While compared to tilt sensors, optical encoders having moving elements and therefore, are subjected to tear and wear. Dirt and dust also impact their functionality.

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