Tubular radiation absorbing device for a solar power plant...

Details Tubular radiation absorbing device for a solar power plant... Tubular radiation absorbing device for a solar power plant...

2006-11-21

2010-10-05

Rinehart, Kenneth B (Department: 3743)

Stoves and furnaces

Solar heat collector

With means to convey fluent medium through collector

C126S652000, C126S653000

Reexamination Certificate

active

07806115

ABSTRACT:
The tubular radiation absorbing device (1) for solar thermal applications has a central tube (2) and a glass tubular jacket (3) surrounding the central tube (2) so that a ring-shaped space (4) is formed between the central tube (2) and the tubular jacket (3). The ring-shaped space (4) contains at least one inert gas with a partial pressure of 3 to 200 mbar. Alternatively in another embodiment a gas-tight closed container (10) filled with at least one inert gas is arranged in the ring-shaped space (4). The container (10) has a device for supplying inert gas to the ring-shaped space (4) in order to compensate for increased heat losses due to diffusion of hydrogen into the ring-shaped space (4) from the heat carrier medium.

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