Solar receiver tube assembly with suited receiver tube per working temperature and use of the receiver tube assembly

摘要

A solar receiver tube assembly is provided with at least one first solar receiver tube with a first selective absorptive coating; at least one second solar receiver tube with a second selective absorptive coating, wherein values of at least one optical characteristic of the first selective coating and the second selective coating differs from each other while an operating the solar receiver tube assembly. The optical characteristics are preferablyαandε. The idea is to improve the effectiveness of the receiver tubes along the receiver assembly.