SOLAR HEAT RECEIVER TUBE FOR DIRECT STEAM GENERATION, PARABOLIC TROUGH COLLECTOR WITH THE SOLAR HEAT RECEIVER TUBE AND USE OF THE PARABOLIC TROUGH COLLECTOR

摘要

A solar heat receiver tube for direct steam generation is provided, comprising at least one outer absorber tube with an internal absorber tube space and at least one inner water tube with an internal water tube space for carrying water. The inner water tube is arranged in the internal absorber tube space. The outer absorber tube and the inner water tube are formed and arranged such that solar energy can be absorbed by the outer absorber tube and absorbed solar energy can be transferred from the outer absorber tube to the inner water tube for the steam generation within the internal water tube space. Inside the water tube liquid water can be transformed into vaporous water. Also provided is a parabolic trough collector with at least one solar heat receiver tube which is arranged in a focal line of a parabolic mirror. The parabolic trough collector is used in a solar power plant for converting solar energy into electrical energy.