HEAT RECEIVER TUBE, METHOD FOR MANUFACTURING THE HEAT RECEIVER TUBE, PARABOLIC TROUGH COLLECTOR WITH THE RECEIVER TUBE AND USE OF THE PARABOLIC TROUGH COLLECTOR

摘要

This invention relates a heat receiver tube for absorbing solar energy comprising at least one first partial surface, which is covered by a solar energy absorptive coating, and at least one second partial surface, which is substantially uncovered by the absorbing coating. Also provided is a parabolic trough collector comprising at least one parabolic mirror for concentrating sunlight in a focal line of the parabolic mirror and at least one heat receiver tube which is arranged in the focal line of the parabolic mirror, wherein the heat receiver tube is arranged in the focal line such that the first partial surface is at least partially located opposite to the sunlight reflecting surface and the second partial surface at least partially averted to the sunlight reflecting surface. The parabolic trough collector is used in a solar power plant for converting solar energy into electrical energy.