Parabolic trough collector Function and operating behaviour of a parabolic trough collector, accessorie for ET 202 Features - pivoting parabolic trough collector with highly reflective mirror - absorber tube with selective coating - evacuated double-walled glass tube to reduce heat losses Learning objectives/experiments - focusing solar radiation with a parabolic trough mirror - optical concentration factor - conversion of radiant energy into heat - losses in thermal solar collectors - efficiency characteristics Specification [1] thermal solar collector with parabolic trough mirror and selectively absorbing absorber tube for operation with the ET 202 trainer [2] evacuated double-walled glass tube to reduce heat losses [3] pivoting collector with angular scale [4] adjustable collector mount for the ET 202 trainer [5] connection to the solar circuit in ET 202 with pump, heat exchanger and storage tank [6] temperature, illuminance and flow rate measured by ET 202 Technical data Collector - parabolic mirror -- trough length: 415mm -- aperture width: 415mm -- mirror surface area: 0,17m2 -- focal length: 0,1m - absorber -- selectively coated absorber tube -- double-walled glass casing to reduce heat losses LxWxH: 546x620x180mm Weight: approx. 16kg