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:
There is provided heat transport apparatus comprising a closed tube having an evaporator and a condenser with the condenser being positioned above the evaporator during operation. The closed tube includes a heat transport medium which, during operation, is vaporized in the evaporator and condensed in the condenser, the resulting condensate being returned to the evaporator. A valve is positioned in the closed tube in the condenser region for controlling the condensate return. A pressure-expansion chamber is arranged within the closed tube and is connected to the valve for closing the same when the vapor pressure in the condenser exceeds a given value. A pressure-equalization duct forms part of the valve and provides communication between the evaporator and the condenser.
摘要:
A heat storage device comprising a closed reservoir within which is positioned a flexible closed container of smaller volume. The flexible container encloses a liquefiable heat-accumulating material; and the reservoir is provided with a heat-transport medium outside of the flexible container. The heat-transport medium always remains in the liquid phase and, upon solidification and shrinkage of the heat-accumulating material, fills the spaces thus formed between the flexible container and the reservoir wall in order to maintain adequate transfer of heat.
摘要:
A heat pipe containing a working fluid, comprises an evaporator, a condenser, an interconnecting tube joining the evaporator and the condenser, and a regulating means for limiting the maximum temperature in the condenser to a predetermined temperature. The regulating means comprises a plug operable by means of a temperature sensitive member to move between a first position in which the plug seats in a fluid reservoir in the condenser and a second position in which the reservoir is adapted to collect the working fluid.
摘要:
A solar collector comprising an evacuated, transparent cover tube sealed at its ends and an associated selective absorber, the inner surface of at least one end of the cover tube being provided with a metallic reflective layer.
摘要:
A solar collector comprising an elongate absorber centrally arranged in an evacuated, transparent, circular-cylindrical tube provided with a reflector in the form of a 1/3-circular cylinder in contact with the absorber.
摘要:
A heat pipe (1) containing a working fluid, comprises an evaporator (3), a condenser (2), an aperture (16) interconnecting the evaporator and the condenser, and a regulating means (13, 14) for limiting the maximum temperature in the condenser to a predetermined temperature. The regulating means comprises a plug (13) operable by means of a temperature sensitive member (14) to move between a first position in which the aperture is open and a second position in which the plug covers the aperture to restrict the flow of working fluid from the condenser to the evaporator. The working fluid then collects in the condenser and acts on the plug to further restrict the flow of working fluid from the condenser to the evaporator.
摘要:
In a solar radiation collector comprising a glass envelope 1 around an absorber plate 2 mounted on a metal tube 3 communicates with a heat exchange condenser 6, the glass envelope is sealed around the metal tube using an intermediate metal collar 4. The collar is sealed at one end around the tube 3 and, at its other end, its thickness tapers to a knife edge and the glass is sealed to the inside of the knife edge.
摘要:
A solar collector comprises a flat absorber and an associated evaporation/condensation system. The evaporation zone, which is in thermal contact with the absorber, has a number of outwardly and downwardly extending protrusions which are spaced along its length and which serve for collecting heat transport medium condensate returning to the evaporation zone under the influence of gravity.
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.