The operating temperature of a central receiver power tower of solar plant is_______.

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SSC JE Electrical 15 Nov 2022 Shift 2 Official Paper
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  1. 500-1000°C
  2. 100-200°C
  3. 5000-10,000°C
  4. 1000-5000°C

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Option 1 : 500-1000°C
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Central receiver system

F2 Vinanti Engineering 09.01.23 D12

Central receiver (or power tower) systems use a field of distributed mirrors also known as the heliostats that individually track the sun and focus the sunlight on the top of a tower.

By concentrating the sunlight 600–1000 times, they achieve temperatures from 500°C to 1000°C. 

A heat-transfer fluid heated in the receiver is used to heat a working fluid, which, in turn, is used in a conventional turbine generator to produce electricity. 

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