首页> 外文会议>IIR Conference on Phase Change Materials and Slurries for Refrigeration and Air Conditioning >ENERGETIC EFFECTS OF FLOW-THROUGH WALL ELEMENTS WITH PHASE-CHANGE MATERIALS FOR BUILDING COMPONENT ACTIVATION
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ENERGETIC EFFECTS OF FLOW-THROUGH WALL ELEMENTS WITH PHASE-CHANGE MATERIALS FOR BUILDING COMPONENT ACTIVATION

机译:流通墙体元件与相变材料进行高度充满活力的影响,用于建立组件激活

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The energy efficiency of buildings is important. In order to reduce the energy demand for heating and cooling a previously proposed flow-through wall element is enhanced with phase-change materials (PCM). By means of numerical modelling and simulation, the energetic effects of the wall element are studied for different cities (i.e., climatic conditions), flow speeds through the wall element, and phase-fraction as well as properties ot the phase-change material. Simulations at sufficiently small time steps for an entire year allow to determine the maximum heating and cooling loads, with their respective annual energies by integration. The results revealed that the PCM-enhanced wall element is beneficial for most of the conditions and cities. Especially, the cooling loads can be reduced significantly compared to wall elements without PCM. The annual primary energy consumption, comprising heating, cooling and operation of the wall element has a minimum at flow speeds of approx. 1 m/s.
机译:建筑的能源效率很重要。为了降低加热和冷却的能量需求,通过相变材料(PCM)增强了先前提出的流通壁元件。通过数值建模和模拟,研究了墙壁元件的能量效果,用于不同的城市(即气候条件),通过壁元件的流速,流速以及相变材料的流速以及性能。一整年的足够小的时间步长的模拟允许通过集成来确定最大加热和冷却负载,各自的年度能量。结果表明,PCM增强墙元件对大多数条件和城市有利。特别地,与没有PCM的壁元件相比,冷却载荷可以显着降低。包括加热,冷却和操作的年一次能耗,壁元件的加热,冷却和操作具有大约的流速最小。 1米/秒。

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