Solar parabolic dish concentrator concentrates radiations of sun on receiver all the day from 9 a.m. to 6 p.m. It tracks the radiations of Sun through automated tracking device, which rotates the parabolic dish along axis of rotation of Sun. Parabolic dish consists of set of solar grade mirrors of rectangular shape or high reflective Solar grade Mirror. Normally, parabolic dish for industrial applications has an area of 16 or 32 sq. m. of elliptical shape.
Technology – Parabolic Concentrators
Steam Header/ Drum Assembly and Instrumentation
Each steam header assembly is connected to a group of concentrators that consists of a steam header/ tank connected to receiver (circular in shape), pressure reducing station, steam and feed water pipelines and necessary valves. The designs of the receivers are such that they work on thermo- siphon principle and the water stored in the header is slowly converted into steam when the system is put into operation. It has a drain arrangement for cleaning against scale formation. The pressure reducing station is so designed that it reduces the pressure of steam generated in the header from 10 Kg/cm2 to 2-4 Kg/cm2 so as to ensure safety of the user while using the steam. The system pipelines, receivers and steam header are insulated with glass wool/ rock wool covered by aluminium cladding to minimize heat losses. The system is hydro tested for any leaks before insulating its various components. Feed water tank of suitable capacity, instrumentation e.g. pressure gauge and water level and temperature indicators, level controller, safety valves, steam separators are installed with the system for safety and measuring different parameters.
TRL reserves the rights for any improvements in the above specifications, which can lead to higher efficiency and cost reduction of the system.
