摘要:
A solar collector for heating a gaseous heat transport medium comprises an open-top housing provided with a transparent cover layer formed of a plurality of adjacently arranged, substantially mutually contacting, sealed and evacuated transparent cover tubes. The inner surface of each cover tube is provided with a selective absorption layer over the half facing the interior of the housing. The surface of the housing bottom facing the cover tubes has a vaulted profile corresponding to the shape of the cover tubes. An inlet and an outlet are respectively provided in the opposite sidewalls of the housing for flow of the gaseous heat transport medium transversely of the cover tubes in direct thermal contact herewith.
摘要:
A wall element, comprising a solar collector which is arranged between two panes and which comprises a number of rotatable absorber plates. One side of the absorber plates is provided with a non-selective black coating and the other side is provided with a selective, heat-reflective layer. The absorber plates are accommodated in evacuated, transparent tubes.
摘要:
A solar collector including at least one evacuated transparent cover tube provided with means for supplying hydrogen to and extracting hydrogen from the cover tube.
摘要:
A solar collector comprising a heat exchanger having a corrugated surface and an entrance window composed of evacuated transparent tubes respectively in contact with the corrugations.
摘要:
A solar collector comprising an absorber and a heat-insulating transparent cover which consists of a number of sealed and evacuated glass tubes adjacently arranged in contact with each other, at least the lower half of the inner surface of each glass tube being provided with an infrared-reflecting layer.
摘要:
A thermal insulating glazing unit comprising a plurality of elongated evacuated sealed glass tubes arranged adjacent each other with their axes parallel, transverse to the light. The inner side of each of the glass tubes is covered by an infrared-reflecting coating.
摘要:
A component includes a substrate layer (1) of glass or Al.sub.2 O.sub.3, an anti-reaction layer (2) or a levelling layer (2), two electrode layers (3, 5) and a dielectric layer (4) as well as such a capacitor. Manufacture a component which provides for cost-effective, surface-mountable (SMD). The anti-reaction layer (2) on the glass substrate (1) or the levelling layer (2) on the Al.sub.2 O.sub.3 -substrate (1) is made of at least one specific material. An anti-reaction layer or a levelling layer (2) of one of the above-mentioned substances or a combination of several substances, enables a dielectric layer (4) to be provided by means of which a high capacitance value is achieved.
摘要翻译:组分包括玻璃或Al 2 O 3的基底层(1),抗反应层(2)或调平层(2),两个电极层(3,5)和介电层(4) 电容器。 制造成本低廉,表面贴装(SMD)的组件。 玻璃基板(1)上的抗反应层(2)或Al2O3基板(1)上的调平层(2)由至少一种特定材料制成。 上述物质之一的抗反应层或调平层(2)或几种物质的组合使得能够提供实现高电容值的介电层(4)。
摘要:
A method of manufacturing a flat, glass-like or ceramic moulding having a structured surface, in which a rotationally symmetrical, moist green body is manufactured from a suspension of a highly dispersed, powdered solid material and a dispersing agent by centrifuging in a hollow mould, whereafter said green body is removed from the hollow mould and, if necessary, rolled out subsequently, cut up and, after which it is spread out on a structure-imparting substrate, the surface is embossed by applying pressure and, subsequently, the glass-like or ceramic moulding is produced by drying and sintering.