Heat pipe for a building envelope and method for adjusting the temperature in a building

A process for control of at least one of the indoor temperature, the indoor thermal radiative flux or the exterior thermal radiative flux of a building with a heat pipe for a building wall, floor, or roof of a building, the building envelope of the building comprising:

• at least two shells spaced apart from one another which enclose an intermediate space being sealed against an interior and exterior of the building, the intermediate space being filled with structural weight-bearing and building-technology components and at least in sections with a porous, open-celled material, the at least two shells including an exterior-facing shell configured to face an exterior of the building, and an interior-facing shell configured to face an interior of the building, the heat pipe comprising:
• a first pipe embedded in the exterior-facing shell and being thermally connected to a heat-collector or a heat-exchange element on an exterior-facing side of the exterior-facing shell, the first pipe protruding from the exterior-facing shell and ending (i) in the intermediate space without contacting the exterior-facing side of the interior-facing shell or (ii) in the interior-facing shell without contacting the interior-facing side of the interior-facing shell;
• and
• a second pipe embedded in the interior-facing shell and being thermally connected to a heat-collector or heat-exchange element on an interior-facing side of the interior-facing shell, the second pipe protruding from the interior-facing shell and ending (i) in the intermediate space without contacting the interior-facing side of the exterior-facing shell or (ii) in the exterior-facing shell without contacting the exterior-facing side of the exterior-facing shell, in such a manner that each first pipe together with an associated second pipe form a heat pipe,
• wherein each of the second pipes is arranged concentrically inside an associated first pipe without contacting the associated first pipe, or each of the first pipes is arranged concentrically inside an associated second pipe without contacting the associated second pipe,
• the heat pipe being sealed against at least one of (i) the interior or exterior of the building, or (ii) the intermediate space, or (iii) at least one of the at least two shells and
• the heat pipe being configured such that a fluid for at least one of increasing, holding or decreasing heat transition through the building envelope or affecting heat transport into or out of the building envelope can flow, at least in sections, through at least one of the first pipe, the second pipe, the space in between the first and second pipe or the heat pipe the process for control comprises:
• controlling heat transition through the building envelope or controlling heat transport into or out of the building envelope by fluid supply and removal for controlled supply and removal of the fluid into or out of at least one of the building envelope, the first pipe, the second pipe, the space in between the first and second pipe or the heat pipe.