Abstract: A method and apparatus for conditioning imported liquefied natural gas to conform to a particular pipeline heating value specification and recovery of liquefied petroleum gas or natural gas liquids from liquefied natural gas are disclosed. An input stream containing liquefied natural gas is split into a direct stream and a bypass stream. The direct stream is heated in a cross-exchanger to produce a heated rich liquefied natural gas stream, which is split into a primary column feed and a secondary column feed. At least a major portion of the secondary column feed is vaporized to produce a vaporized secondary column feed, which is expanded in an expander to produce a vaporized and expanded secondary column feed. A top feed, the primary column feed, and the vaporized and expanded secondary column feed are fractionated to produce an overhead product stream and a bottom product stream. The overhead product stream is compressed in a compressor coupled to the expander.

Abstract: A heat dissipating apparatus includes a thermal conducting base and heat pipes connected to the thermal conducting base. Each heat pipe includes a heated section and a heat dissipating section. The portion connected to the thermal conducting base is the heated section, and the heat dissipating section is extended outward from the thermal conducting base. In the heat pipes, at least one heat dissipating section of the heat pipe is extended outward from a lateral side of the thermal conducting base, and the heat dissipating section of the heat pipe is situated at a position higher than the heated section, and fins are disposed on the heat dissipating section of the heat pipe. Therefore, the heat pipe guides the heat absorbed by thermal conducting base to a lateral side to dissipate heat from a nearby heat source.

Abstract: A thermal-cycle cryocooler, such as a Stirling-cycle cryocooler, has a single working volume that is utilized by both the compressor and the displacer. The compressor and the displacer have respective movable parts, one of which is surrounded by the other. One of the parts may be a piston, a portion of which moves within a central bore or opening in a cylinder that is the other movable part. The piston may be a component of the compressor and the cylinder may be a component of the displacer, or vice versa. The working volume is located in part in a bore of the cylinder, between the piston and a regenerator that is coupled to the cylinder. Movements of either the piston or the cylinder can directly (i.e. without the use of a gas transfer line or flow passage) cause compression or expansion of the working gas in the working volume.

Abstract: A thermal energy transfer device attached to an object to dissipate thermal energy from the object is provided. The thermal energy transfer device includes a non-metal base plate and a first non-metal fin structure. The base plate has a first primary surface and a second primary surface opposite the first primary surface, and includes at least one groove on the first primary surface. The fin structure has a first primary surface, a second primary surface opposite the first primary surface, and a plurality of edges that are between the first and the second primary surfaces including a first edge. The first fin structure is attached to the base plate with the first edge received in a first groove of the at least one groove of the base plate.

Abstract: This invention relates to a spiral heat exchanger including a spiral body formed by at least one spiral sheet wound to form a first spiral-shaped flow channel for a first medium, and a second spiral-shaped flow channel for a second medium. The spiral body is enclosed by a substantially cylindrical shell with connection elements communicating with the first flow channel and the second flow channel. The shell includes at least two shell parts, and the spiral body is provided with at least one fixedly attached flange on its outer peripheral surface, whereupon the at least two sell parts are removably attached.

Abstract: An exemplary flat heat pipe with an evaporator section and a condenser section includes a hollow casing, and a first wick structure and a second wick structure in the casing. The second structure contacts an inner surface of the casing at the evaporator section. The first structure at the evaporator section includes a first contact portion contacting an inner surface of the second structure, and a first isolated portion from the inner surface of the second structure. The first isolated portion and the inner surface of the second structure define a first channel therebetween. The first structure at the condenser section includes a second contact portion contacting the inner surface of the casing, and a second isolated portion from the inner surface of the casing. The second isolated portion and the inner surface of the casing define therebetween a second channel communicating with the first channel.

Abstract: The present invention relates to a refrigerator unit and/or a freezer unit comprising at least one fan, at least one compressor and at least one condenser, wherein the fan is arranged such that it applies air to the compressor and to the condenser in parallel.

Abstract: A system for cooling electronic equipment is provided. The system includes enclosures with front and rear doors for holding assemblages of electronics, front and rear heat exchangers housed within each of the front and rear doors, respectively, a series of separate supply lines configured with control valves and flow control sensors that provide liquid coolant to each of the heat exchangers, a series of separate return lines configured with temperature sensors for exiting coolant from each of the heat exchangers, separate air purging valves for each of the supply and return lines and a series of spray shields. The spray shields prevent coolant leaks from entering an inlet airflow and protect the electronics from coolant leaks. The control valves are actuated by a controller in response to readings from the temperature and flow control sensors to separately control coolant flow to each of the front and rear heat exchangers.

Abstract: A heat spreader comprising a sheet of transparent diamond with an aperture therein that accommodates a solid-immersion lens (SIL). The heat spreader may be mounted within a clamp which allows the heat spreader to move freely across the Device Under Test (DUT) while maintaining a very high degree of planarity and contact between the diamond and the silicon substrate of the DUT. The DUT is secured to its electrical interface with a low profile clamp, the DUT may be held within the clamp by a mechanism that applies a pressure to the sides of the DUT package.

Abstract: A heat exchange tube is constructed by forming, on a cylindrical tube peripheral wall, a plurality of projecting portions which project to an inside of the tube peripheral wall, and which are formed by pushing. The plurality of projecting portions are formed, respectively, into conical shapes across a tube axis, and are arranged along virtual spirals on the tube peripheral wall. Accordingly, it is possible to provide a heat exchange tube which facilitates formation of a plurality of projecting portions with the thickness hardly changed and without formation of protruded portions, and which is capable of contributing to enhancement of heat exchanging efficiency.

Abstract: A heat exchanger radiating fin structure and a heat exchanger thereof. The radiating fin includes a main body and at least one rib. The main body has a first plane face and at least one lateral side. Multiple depressions are formed on the first plane face. The rib is disposed on a portion of the first plane face, which portion is free from any of the depressions. The rib obliquely extends in a direction neither normal nor parallel to any lateral side of the first plane face. The heat exchanger includes a radiating fin assembly composed of multiple piled up radiating fins. Each two adjacent radiating fins define therebetween a flow way having at least one inlet and at least one outlet. With the depressions and the rib, the structural strength of the radiating fin is increased and the heat exchange performance of the heat exchanger is enhanced.

Abstract: A structure of heat plate includes a hollow portion formed adjacent to a side edge of a plate body or in a corner of the plate body. A seal tube is received in the hollow portion so that the plate body provides complete protection to the seal tube against deformation or damage of the seal tube caused by external impact or hit and offers the advantages of simple structure, excellent durability, being easy to practice, and flexibility of arrangement.

Abstract: Air is supplied to the interior of a casing from first and second blower units, such that cool air that has been cooled by an evaporator and warm air that has been heated by a heater core are mixed together and blown out toward a front seat side and a rear seat side of the vehicle, respectively. At this time, a temperature control damper, which adjusts the temperature of air that is blown into the vehicle compartment, causes a flow of warm air having undergone heat exchange in the heater core to be deflected toward a direction where the evaporator is installed. Mixing of the warm air and the cool air can thus be carried out suitably by causing the flow of cool air, which has undergone heat exchange in the evaporator, and the flow of warm air to be oriented in mutually opposite directions.

Abstract: A cooling body for the regulator of an electric machine, which regulator may be a voltage regulator of a DC generator of a vehicle, includes a heat exchange surface with an inflow region and an outflow region. A cooling air flow may be applied to the heat exchange surface during the operation of the electric machine. The cooling air stream impinges on the heat exchange surface in the inflow region and leaves the heat exchange surface from the outflow region. The heat exchange surface is shaped differently in the inflow region than in the outflow region. Because of the shape of the heat exchange surface, the direction in which the cooling air is applied is different compared to conventional surfaces.

Abstract: An evaporator 1 is configured such that two heat exchange tube groups 16, each composed of a plurality of heat exchange tubes 15, are provided between a pair of header tanks 2, 3, while being separated from each other in a front-rear direction. Each of the header tanks 2, 3 includes two header sections 5, 6, 11, 12. Each header tank 2, 3 includes a first member 21, 93 to which the heat exchange tubes 15 are connected, and a second member 22, 94 which is joined to the first member 21, 93 and covers the side of the first member 21, 93 opposite the heat exchange tubes 15. Partition portions 41, 42 for dividing the interiors of the header section 5, 6, 11, 12 into upper and lower spaces 5a, 5b, 6a, 6b are provided on the second member 22, 94 of the header tank 2, 3. Through holes 47, 51A, 101, 102 for establishing communication between the upper and lower spaces 5a, 5b, 6a, 6b of the header section 5, 6, 11, 12 are formed in the partition portions 41, 42.

Abstract: A board-shaped heat dissipating device includes a board body having a plane face with a recess formed thereon, a heat conducting element fitted in the recess, at least one groove formed on any one of the board body and the heat conducting element, and at least one heat pipe pressed into the groove to flush with an open side of the groove. After the heat pipe is pressed into the groove and the heat conducting element is firmly fitted in the recess, portions of the heat conducting element that are higher than the plane face are removed through a cut operation, so that the heat conducting element is flush with the plane face of the board body to reduce the space occupied by the heat dissipating device. With the above arrangements, the problem of thermal resistance can be avoided and upgraded overall heat dissipation efficiency can be achieved.

Abstract: A system comprising a plurality of rooftop HVAC units having a centralized refrigeration unit is described along with a method for retrofitting existing independent HVAC units into the described system. The resulting multi-unit system offers increased efficiency and reliability over independently operating HVAC units.

Abstract: Flat heat exchanger tubes having two narrow and two broad sides are shown and described, wherein the flat tubes can be manufactured from two continuous strips having a relatively large curve on one longitudinal edge of the strips and having a relatively small curve on the other longitudinal edge of the strips. The two strips can be arranged laterally transposed with respect to one another to form the wall of the flat tubes, so that the relatively large curve of the longitudinal edge of one strip holds in itself the relatively small curve of the longitudinal edge of the other strip to form the narrow sides of the flat tubes. The strips can be formed with at least one further contoured portion which extends in the longitudinal direction of the flat tubes and which improves cohesion of the flat tube.

Abstract: A heat sink comprises a plurality of individual plates. Each of the plates comprises a heat-dissipating portion and a binding portion connecting with the heat-dissipating portion. The binding portions are stacked together on each other to form a heat-absorbing portion. At least some of the heat-dissipating portions are bent at angles relative to the respective binding portions. At least a hoop encloses the heat-absorbing portion. A method of manufacturing the heat sink is also disclosed.

Abstract: Contemplated plants thermally integrate operation of a refinery component, and most preferably of a hydrocarbon splitter with LNG regasification to provide refrigeration duty and with a power cycle to provide the reboiler duty of the component. It should be noted that such configurations advantageously allow operation of the splitter at a reduced temperature and at reduced pressure, thereby increasing separation efficiency, while the power output is boosted using air intake chilling. Most notably, such process advantages are achieved by satisfying the heating duty of LNG regasification.