摘要:
A heater which uses the electrolysis of a liquid to produce heat from electricity and transfers the heat from the electrolyte by means of a heat exchanger. One embodiment includes electrodes of nickel and platinum and an electrolyte of potassium carbonate with a heat exchanger immersed in and transferring heat from the electrolyte.
摘要:
An improved heat pipe with an external artery. The longitudinal slot in the heat pipe wall which interconnects the heat pipe vapor space with the external artery is completely filled with sintered wick material and the wall of the external artery is also covered with sintered wick material. This added wick structure assures that the external artery will continue to feed liquid to the heat pipe evaporator even if a vapor bubble forms within and would otherwise block the liquid transport function of the external artery.
摘要:
A mass produced, easily assembled heat exchanger for use in cooling a cabinet or other enclosure by convection over both ends of fins which penetrate the wall of the enclosure. The configuration of the preferred embodiment has offset fins alternating in and out of the enclosure with the overlap at the enclosure wall and each fin acting as a spacer for the adjacent ones. An alternate embodiment uses a "U" shaped spacer to wrap around the overlapping edge of each fin, thus increasing the air flow space between fins without increasing the thickness of fins.
摘要:
Method and apparatus for determining when the cast of a blast furnace is substantially completed in a blast furnace cast system wherein direct viewing of the taphole is obstructed during the cast. In a system wherein viewing of the taphole is obstructed by hood means covering the iron trough, substantial completion of the cast may be determined by sensing changes in ambient conditions, e.g., a change in temperature within the hood means, vibration of the hood, and/or a change in the color of the flame generated at the discharge end of a slag runner.
摘要:
The invention provides a semiconductor package having a substrate, a top surface and at least one semiconductor device attached to the top surface of the substrate. A cover is secured to the substrate creating a space between the cover and the substrate, with the semiconductor device residing within the space. The cover includes an inner chamber that is defined by an upper wall and a lower wall of the cover. The cavity contains a two-phase vaporizable liquid and a wick. Advantageously, the wick on the lower wall includes at least one recess that forms a thinned wall adjacent to a high heat generation portion of the semiconductor device. In one embodiment, the wick on the lower wall includes at least one channel that communicates with at least one of the recesses.
摘要:
A wick for use in a heat pipe is provided incorporating particles of micro-encapsulated phase change material bonded together to form the wick. Use of a wick structure comprising micro-encapsulated PCM particles has the advantage of providing an additional heat absorber. This greatly enhances the ability of the heat pipe to absorb excess heat and may help to prevent damage to the heat pipe or heat generating component, such as an electronic device, especially at times of peak thermal loads.
摘要:
A high efficiency evaporator is disclosed. The evaporator is made with a ous wick on the interior of the evaporator housing to facilitate movement of a refrigerant liquid within the housing. This aids in dispersing the refrigerant.
摘要:
A heat pipe constructed to be bent to conform to a particular mechanical configuration after is is constructed. The wick in the evaporator region is constructed from sintered metal powder; while the wick in another region of the heat pipe is constructed with a screen wick to permit bending the pipe without destruction of the wick. Arteries wound from flexible screen material are continuous through both the sintered wick, into which they are inserted, and the screen wick, to which they are also attached.
摘要:
A specially constructed heat pipe for use in fluidized bed combustors. Two distinct coatings are spray coated onto a heat pipe casing constructed of low thermal expansion metal, each coating serving a different purpose. The first coating forms aluminum oxide to prevent hydrogen permeation into the heat pipe casing, and the second coating contains stabilized zirconium oxide to provide abrasion resistance while not substantially affecting the heat transfer characteristics of the system.
摘要:
A capillary structure for a heat transfer device, such as a heat pipe is provided having a plurality of particles joined together by a brazing compound such that fillets of the brazing compound are formed between adjacent ones of the plurality of particles and one or more vapor vents are defined in the capillary structer. In this way, a network of capillary passageways are formed between the particles and vapor-vents through the capillary structure so as to aid in the transfer of working fluid by capillary action, while the plurality of fillets provide enhanced thermal transfer properties between the plurality of particles so as to greatly improve over all heat transfer efficiency of the device. A method of making the capillary structure according to the invention is also presented.