摘要:
An apparatus, comprising an environmental control element configured to control at least one environmental condition of a substance contained within a chamber, the environmental control element includes a thermal insulator configured to provide a thermal shield to the substance and a phase change material (PCM) configured to thermally regulate at least one environmental condition. The environmental control element is configured to control the environmental condition without use of an external power source, thereby allowing the apparatus to be thermally self-recharging.
摘要:
A solar collector comprising an absorber for transferring solar heat to a heat-transporting medium in a duct which is arranged in heat-exchange relationship with the absorber, the absorber being insulated from the surroundings by at least one evacuated tube containing a reversible hydrogen getter which consists of one or more of the metals titanium, zirconium, hafnium, scandium, yttrium, lanthanum, the rare earths, strontium, barium, vanadium, niobium tantalum, thorium and alloys of these metals in a partly hydrogenized condition, and also a fully hydrogenized metal which is thermally more stable and has a higher oxygen affinity than the partly hydrogenized metal, mixture or alloy.
摘要:
A method of anti-freezing protection of a fluid pipe, comprising forming a valve assembly (1) connecting, in mutual fluid communication, a thermostatic anti-freezing valve (2) responsive to a fluid temperature of a fluid in contact with the anti-freezing valve (2) itself, a thermostatic valve (3) responsive to an ambient temperature outside the valve assembly (1), making in the valve assembly (1) an inlet opening (5), a discharge opening (6) in communication with the inlet opening (5), and a first and only fluid communication (8) between the inlet opening (5) and the discharge opening (6), connecting the inlet opening (5) of the valve assembly (1) to the fluid pipe so that a fluid from the fluid pipe enters the valve assembly (1), using the anti-freezing valve (2) to open and close the discharge opening (6) automatically depending on the fluid temperature, using the thermostatic valve (3) to automatically open and close, depending on the ambient temperature, the first and only fluid communication (8) between the inlet opening (5) and the discharge opening (6), using a knob (21) of the thermostatic valve (3) to manually close and/or open the first fluid communication (8), regardless of the ambient temperature.
摘要:
Es wird eine Baugruppe für ein modulares Automatisierungsgerät vorgeschlagen, mit einem in einer Gehäusekapsel (3) der Baugruppe angeordneten Sensor zur Erfassung der Temperatur (T erf ) der Zuluft in der Gehäusekapsel (3), wobei die Zuluft durch Lufteintrittsöffnungen der Gehäusekapsel (3) über Bauelemente und schließlich durch Luftaustrittsöffnungen (4) der Gehäusekapsel (3) strömt, und mit einer Überwachungseinheit zur Auswertung der von dem Sensor erfassten Temperatur (T erf ). Mittels geeigneter Maßnahmen wird eine genauere Ermittlung der Zulufttemperatur ermöglicht.
摘要:
A plurality of heat pipes extend longitudinally through a unitary or segmented circuit card module, terminating at both ends in cavities formed along lateral edges of the module. In one embodiment, bellows extend outwardly from the cavities in a direction normal to the plane of the module, terminating in interface plates which extends along the respective lateral edges of the module. In another embodiment, upstanding pillars are connected to bellows covering the cavities. Electronic components are mounted on a circuit card applied to a face of the module. The module is loosely received between opposed liquid cooled surfaces of guiderails in a circuit card rack. Heat from the components is communicated through the card to the heat pipes, increasing the pressure within the pipes to urge the interface plates or pillars into variable pressure contact with the guiderails. The pressure is sufficient to snugly hold the module in the rack. The thermal resistance between the interface plates or pillars and the guiderails varies as a function of the contact pressure, providing fast warm-up and lower operating temperatures for the components.
摘要:
A solar collector comprising an absorber for transferring solar heat to a heat-transporting medium in a duct which is arranged in heat-exchange relationship with the absorber, the absorber being insulated from the surroundings by at least one evacuated tube containing a reversible hydrogen getter which consists of one or more of the metals titanium, zirconium, hafnium, scandium, yttrium, lanthanum, the rare earths, strontium, barium, vanadium, niobium tantalum, thorium and alloys of these metals in a partly hydrogenized condition, and also a fully hydrogenized metal which is thermally more stable and has a higher oxygen affinity than the partly hydrogenized metal, mixture or alloy.
摘要:
A method for adjusting a presetting of a valve, in particular a heat exchanger valve is disclosed, said method comprising a step of moving in a valve housing a presetting position corresponding to a desired presetting. A precise adjustment of the presetting should be facilitated. To this and in a preadjustment step a presetting position is adjusted in an adjusting tool (13) and in an adjustment step said adjusting tool (13) is mounted on said valve housing engaging said presetting element and said valve housing wherein said adjusting tool (13) is moved relative to said valve housing until it rests against a stop at said valve housing.