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The use of ground heat storages and evacuated tube solar collectors for meeting the annual heating demand of family-sized houses

机译：使用地面蓄热器和真空管太阳能集热器来满足家庭大小房屋的年度供热需求

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The use of storages for sensible heat is limited because parts of the input thermal energy end up as unavoidable heat losses. In order to minimize this loss, it is necessary to keep the surface area to volume ratio (S/V) as low as possible. This occurs when the volume of a body with a certain shape increases. In addition to a large volume it is important to use materials with a high volumetric thermal capacity, as long as sensible heat is being used for storage. This condition is best met by water or a combination of substances with water. In the field of interseasonal storages, for solar heat to cover the heating demands of small residential buildings, the general belief is that the relative small volume needed, results in too much heat loss and therefore individual seasonal storages seem to be of no useful solution. However, the theoretical considerations and simulations in this paper show that this is a prejudice. It is possible to supply a great deal of the thermal energy needed for small residential homes with interseasonal ground storage for solar heat. The loss of heat is acceptable if the storage is designed in the correct way. The ground heat storage should be of cuboidal shape, using the local soil as storage material, if possible. The storage containment must be heat-insulated and damp-proof. The placement of the storage could be within the heated building, adjacent to it or nearby. As such systems may be useful as retrofit for existing houses this study assumes that the storage system has no contact with the heated house. The heat is supplied by evacuated tube solar collectors and their feature to produce effective heat with high temperature (above 100 ℃) is used.
机译：由于显热输入的一部分最终会不可避免地散失热量，因此限制了显热存储的使用。为了使这种损失最小化，必须使表面积与体积之比（S / V）尽可能低。当具有特定形状的物体的体积增加时，会发生这种情况。除了大体积之外，重要的是使用具有高体积热容量的材料，只要将显热用于存储即可。水或物质与水的组合最能满足此条件。在季节间存储领域中，要使太阳能满足小型住宅建筑的供热需求，通常认为所需的相对较小的体积会导致过多的热损失，因此单个季节性存储似乎无济于事。但是，本文的理论考虑和模拟表明这是一个偏见。通过季节性的地面存储来存储太阳能，可以为小型住宅提供大量的热能。如果存储设备的设计正确，则热量损失是可以接受的。地面储热应为长方体形状，如果可能，应使用当地土壤作为储热材料。储存容器必须是隔热且防潮的。储存库的放置位置可以在加热的建筑物内，邻近建筑物或附近。由于此类系统可用作现有房屋的翻新，因此本研究假设存储系统与受热房屋没有接触。热量由真空管式太阳能集热器提供，并具有在高温（高于100℃）时产生有效热量的功能。

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