Abstract

Concentrating Solar Power (CSP) focuses sunlight in order to use the heat energy of the sun. In a central receiver system configuration, many mirrors (heliostats) individually track the sun and reflect the concentrated solar energy onto a receiver on top of a tower. The receiver contains the working fluid which is heated by the concentrated solar radiation. The useful energy that absorbed by the water flows through the receiver in solar tower plant depending on the angle between the solar rays and the position of heliostat in the region of work. Heliostat will reflect the incident solar radiation in the direction of the receiver founded in the top of the tower, in order to get a maximum incident solar radiation on the heliostat reflection area. Because of the cosine factor loss effect due to the sun position is variable along the day from sunrise to sunset, which must be in a minimum value, therefore an automated tracking system with dual axes as a control system with sensors had been built and used to stay the sunrays incident on the receiver, and enable the heliostat to flow the sun where it was

Highlights

  • INTRODUCTIONThis machine has a reflection area and a studied position in the field of the central solar, they follow the sun's motion by tracking system [1] and [2]

  • Many people use solar power by harnessing the sun's energy to heat their homes and to run different appliances .It is an economical and earth-friendly way to bring power into the home and can cut external power consumption by 50 to 70%

  • The central solar tower is one of green technologies used to generate the electricity from sunlight by concentering the solar rays that directed to the receiver found on the top of the tower, this heat exchanger will absorb these rays and convert to the thermal energy used to turn drive steam turbine

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Summary

INTRODUCTION

This machine has a reflection area and a studied position in the field of the central solar, they follow the sun's motion by tracking system [1] and [2]. The main object is to maximize the efficiency and performance of the receiver which achieved by using the tracking system to minimize the effect of cosine factor and decreases the losses of the sunrays, this will improve the performance of the solar power plant

COSINE LOSS
METHODOLOGY
CONCLUSION
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