我们测试了辐射墙系统的性能，该系统将管道连接到由加气混凝土制成的隔热芯上。这种系统的潜在好处包括夏季制冷、冬季供暖的可能性、在新建筑和现有建筑中易于安装、空间要求较小，以及在现有建筑中安装时无需降低楼层高度。在设计边界条件下，对位于两个气候室之间的墙体碎片进行了实验室测量，以测量加热和冷却模式下的墙体表面温度和输出。连接到内壁表面的热箱可以精确控制测试条件。 碎片由混凝土芯组成，混凝土芯通过一层隔热层与外部绝缘，芯上连接一个密集的管道寄存器，位于石膏中。响应曲线表明，墙体系统具有快速的热响应。在墙表面的实际空气速度下，在加热模式下，活动表面每平方米的热通量和水与室内空气之间的温差为1 K，分别为5.1 W/（m2.K）和4.8 W/（m2.K）。结果表明，由于表面温度的允许范围有限，在峰值冷却条件下可能需要相对较大的活动表面面积。然而，在加热条件下，计算表明，在热负荷为0。 假设在恶劣气候条件下，房间绝缘良好，8kW仅为8m2。引文:2021篇虚拟会议论文

We tested the performance of a radiant wall system that involves pipes attached to a thermally insulating core made of aerated concrete. The potential benefits of such a system include the possibility of operation as cooling in summer and heating in winter, easy installation in new as well as existing buildings, minor space requirements, and eliminating the need to reduce the story height when installed in existing buildings. Laboratory measurements of a wall fragment located between two climate chambers have been performed under design boundary conditions to measure the wall surface temperature and output in heating and cooling mode. A hotbox attached to the inner wall surface allowed precise control of the test conditions. The fragment consisted of the concrete core insulated from the exterior by a layer of thermal insulation and a densely spaced pipe register attached to the core and located in a plaster. The response curves indicated a fast thermal response of the wall system. With realistic air velocities at the wall surface, the heat flux per m2 of the active surface and 1 K of the temperature difference between water and room air was 5.1 W/(m2.K) in heating and 4.8 W/(m2.K) in cooling mode. The results suggest that a relatively large area of the active surface may be needed under peak cooling conditions due to the limited permissible range of surface temperatures. However, under heating conditions, the calculations indicated that the active surface area needed at the heating load of 0.8 kW was only 8 m2 assuming a well-insulated room under severe climatic conditions.