lindab | we simplify construction Heating and cooling panels Atrium Loggia/-H/-C Function Heating (Atrium-H, Loggia) When warm water passes through the copper pipe, heat is transferred to the aluminium plate, with very little tem- perature loss. The panel is warmed and it then radiates the heat into the room. The thermal radiation travels tens of metres through the air without any loss of output on its way to the floor and walls. In this way, you avoid heating a large air mass that, when warm, sticks to the ceiling. Instead, the heat goes where it is needed the most. It is mainly the floor, walls, furniture and fittings in the room that are heated. The temperature of the room sur- faces becomes higher than that of the room air and thus transfers its heat to the air. By heating primarily the room surfaces instead of the air, you can save a lot of energy. A more detailed description of how ceiling heating works is available in Lindab's Ceiling Heating Guide. Cooling feature (Atrium-C) When cold water passes through the panel, the heat of the aluminium plate is transferred to the cold water, with very little temperature loss. The panel partly chills the warm room air on its cold surfaces and, partly absorbs heat from the room via low-temperature radiation. In this way, the room is chilled via both radiation (approx. 50%) and convection. The absorption of low-temperature radi- ation means that the surfaces of the room, and above all the floor, walls, furniture and fittings have a lower tem- perature than if then cooling was only convective. This means that storage of "cooling energy" is greater. Design The design of the panels is based on a world-patented method of joining a copper pipe to an aluminium plate. The aluminium plate is metallurgically bonded with the copper pipe (the materials are partially fused together under very high pressure). Due to this, the energy trans- port between the pipe and the plate is very efficient. The copper pipe has a rhomboid shape (see Picture 1), which ensures that turbulent flows are obtained quicker than with a round pipe and guarantees very good heat transfer even at low flow rates. The water pipes are made of copper. Nevertheless, water should be oxygen-free to prevent corrosion. Picture 1. Cross-section of the metallurgically bonded copper and aluminium plates and the rhom- boid water duct. Lindab reserves the right to make changes without prior notice 3 2021-05-21
Download PDF file