In an exhaust heat recovery device, exhaust gas flows out from a heat exchange outflow port into a heat exchange passage. The exhaust gas having flowed out into the heat exchange passage flows in a radial direction from an inner side to an outer side of a heat exchanger to reach a second heat exchange passage from a first heat exchange passage. A heat exchange is performed in the heat exchanger while the exhaust gas flows.

A heat exchanger system for cooling liquid includes a generally rectangular arrangement of a plurality of horizontally spaced finned tube arrays arranged above the ground, the arrangement having longer sides extending in a length direction and shorter sides extending in a width direction. A plurality of fans are provided above the finned tube arrays for inducing air through the finned tube arrays, wherein at least two of said fans are mutually spaced in the width direction. At least one wind deflector is provided adjacent one of the longer sides, wherein the at least one wind deflector is installed on the ground separately from any of the plurality of finned tube arrays.

A method of minimizing the effect of wind on a heat exchanger system includes setting the pivot angle of a wind deflector to an initial angle; collecting and recording a current reading of one of an outlet temperature sensor, a wind speed sensor, an ambient temperature sensor, or a heat exchanger inlet air pressure sensor; comparing the current reading of the sensor to a previous reading; and changing the pivot angle of the wind deflector from an initial angle when the current sensor reading is changed from the previous reading.

For minimizing the effect of wind on a heat exchanger system having a plurality of finned tube arrays and a plurality of fans, a method includes providing a wind louver below one of the fans. The wind louver is arranged to divert wind flowing in an approximately horizontal direction below the one of the plurality of fans to instead flow in a direction that is more vertically upward as compared to the approximately horizontal direction. Readings of a heat exchanger outlet temperature, ambient temperature, wind, and inlet air pressure are collected and recorded, and compared to previous readings. The louver height is changed if the readings have changed.

A header for a heat exchanger and method for cleaning a heat exchanger in a loop without disconnecting loop components is provided. The header is in flow communication with the heat exchanger for distributing fluid through a plurality of adjacent channels. The header is connected between a main heat exchanger inlet nozzle and a channel flow distributor. A filter element is disposed within the header between the nozzle and channel flow distributor. Under normal operation, the filter element removes particulates and fouling material from the main flow stream before it enters the heat exchanger channels. During the cleaning process, fluid is injected on or through the filter element to remove particulates and fouling material through at least one outlet port. The header arrangement allows the filter element to be cleaned in place without draining the system and disconnecting the heat exchanger or other components from the flow loop.

The invention relates to a channel intended for circulating fluid and formed by at least two plates each having a bottom and a section, the bottom extending in a first plane, the section extending in a plane that is parallel and offset with respect to the first plane, the bottom and the section being connected to one another by an intermediate portion, the bottom of at least one of the plates includes a first protuberance. The first protuberance extends from its base to its top wall. The top wall is in contact with the bottom of the opposite plate and partially faces the intermediate portion of the plate.

An energy handling system is for converting, storing or transmitting energy, and includes a heat exchange unit for exchanging heat between a first substance and a second substance. The heat exchange unit has a first inner compartment and a second outer compartment positioned adjacent to each other and being separated by a heat exchange surface. The system has a balloon mounted in the first inner compartment to form in the first inner compartment a hermetically sealed volume between the outer surface of the balloon and the heat exchange surface. The hermetically sealed volume is filled with the first substance, and the balloon is configured to be filled with a balloon fluid, while the second outer compartment is filled with the second substance. The area of the heat exchange surface in contact with the first and second substances remains substantially the same during the heat exchange process.

A method for manufacturing a double-wall heat-exchanger tube including an external tube and an internal tube, these tubes being metallic, cylindrical and coaxial. This method includes providing a first tube having an inside diameter d.sub.1int and an outside diameter d.sub.1ext, this first tube being intended to form the external tube, a second tube having an inside diameter d.sub.2int and an outside diameter d.sub.2ext, this second tube being intended to form the internal tube, and a cylindrical coaxial tubular leaf made from Fe.sup.0 having an inside diameter d.sub.int and an outside diameter d.sub.ext, such that 0.15 mm(d1intdext)0.25 mm, 0.15 mm(dintd2ext)0.25 mm, and 10 m(dextdint)200 m.

A separating element (10a, 10b) adapted to be positioned in connection to a heat exchanger unit (1, 1a, 1b, 1c) of a sectioned heat exchanger (100) is disclosed. The separating element (10a, 10b) has first openings (11a, 11b) adapted to align with first heat exchanger openings (3a, 3b) forming inlets of a first flow path (A) and a second flow path (B), respectively, through the heat exchanger unit (1, 1a, 1b, 1c). The separating element (10a, 10b) further includes second openings (11c, 11d) adapted to align with second heat exchanger openings (3c, 3d) forming outlets of the first flow path (A) and the second flow path (B), respectively. The first openings (11a, 11b) are formed with first valves (12a, 12b) adapted to close for fluid flow to the first (A) and/or the second (B) flow path through the heat exchanger unit (1, 1a, 1b, 1c), and the second openings (11c, 11d) are formed with second valves (17a, 17b) adapted to close for fluid flow from the first (A) and/or second (B) flow path. The first valves (12a, 12b) are formed with valve stems (13a, 13b), each operated by an actuator (14a, 14b), and the second valves (17a, 17b) are connected to the same valve stems (13a, 13b) as the first valves (12a, 12b), thereby providing coordinated control of the first valves (12a, 12b) and the second valves (17a, 17b).

The invention relates to a heat exchanger for the thermal management of an electrical and/or electronic element, advantageously of a vehicle, including a heat exchange body having: a heat exchange wall intended to be in thermal contact with the electrical and/or electronic element, a base wall opposite the heat exchange wall, a flow channel for a heat-transfer fluid formed between the heat exchange wall and the base wall, the flow channel including: a first zone having a first heat-transfer-fluid flow disruption component, a second zone having a second heat-transfer-fluid flow disruption component, the first heat-transfer-fluid flow disruption component consisting of a plurality of local deformations on the base surface and the second heat-transfer-fluid flow disruption component consisting of a fin arranged between the heat exchange surface and the base surface and forming a plurality of flow paths.