Arrangement for supporting U-bend tube sections in the high heat environment of steam generators using flat bars. The invention uses a combination of thicker and thinner flat bars to impart a serpentine path to the arc of the normally curvilinear U-tubes. The support system accommodates the dilation and contraction of coolant tubes and other elements caused by the extreme and varying conditions inside a steam generator, and which can cause gaps between coolant tubes and prior art tube support bars. Bars of alternating thickness provide alternating offsets to tensionally push and support each tube on multiple sides and in multiple locations, and this tension keeps the tubes in contact with at least some flat bars on multiple sides regardless of size and shape changes. Support arrangement includes a set of fan bars, each fan bar including thick and thin flat bars projecting up and out from a collector bar.

Arrangement for supporting U-bend tube sections in the high heat environment of steam generators using flat bars. The invention uses a combination of thicker and thinner flat bars to impart a serpentine path to the arc of the normally curvilinear U-tubes. The support system accommodates the dilation and contraction of coolant tubes and other elements caused by the extreme and varying conditions inside a steam generator, and which can cause gaps between coolant tubes and prior art tube support bars. Bars of alternating thickness provide alternating offsets to tensionally push and support each tube on multiple sides and in multiple locations, and this tension keeps the tubes in contact with at least some flat bars on multiple sides regardless of size and shape changes. Support arrangement includes a set of fan bars, each fan bar including thick and thin flat bars projecting up and out from a collector bar.

A heat exchanger, comprising: a tube bundle having at least one tube for receiving a fluid medium, wherein the at least one tube is wound about a core tube which extends along a longitudinal axis, and a first tube section of the at least one tube rests against at least one web which extends along the tube core and at least one first bracket element for securing the first tube section to the at least one web, the at least one first bracket element having a lower face which faces the first tube section and rests against the first tube section. The invention additionally relates to a securing system and to a method.

A heat exchanger, comprising: a tube bundle having at least one tube for receiving a fluid medium, wherein the at least one tube is wound about a core tube which extends along a longitudinal axis, and a first tube section of the at least one tube rests against at least one web which extends along the tube core and at least one first bracket element for securing the first tube section to the at least one web, the at least one first bracket element having a lower face which faces the first tube section and rests against the first tube section. The invention additionally relates to a securing system and to a method.

Apparatus related to thermal storage and exchange systems for use in buildings to selectively cool and/or heat a heat storage medium and cause said medium to reversibly pass between a liquid phase and a solid phase without requiring a complete discharge of a thermal reservoir between phase changes. In one embodiment, a cube filled with water and a gas or liquid within the horizontal tubing is used to charge the system, thereby freezing the water. The vertical tubing is then used to recover the energy by melting the ice, which is used for air conditioning. In one embodiment, copper tubing and fins are used to efficiently charge and discharge the system.

A refrigerator comprising a storeroom and a cold air supplier configured to supply cold air into the storeroom. Where the cold air supplier comprises a heat exchanger producing cold air, a duct accommodating the heat exchanger and defining a flow path for air to pass through the heat exchanger, and a fan generating an air flow inside the duct. Where the heat exchanger comprises a tube in which a refrigerant flows and a fin coupled to an outer surface of the tube. Where the tube is eccentrically arranged to a side of the duct.

A refrigerator comprising a storeroom and a cold air supplier configured to supply cold air into the storeroom. Where the cold air supplier comprises a heat exchanger producing cold air, a duct accommodating the heat exchanger and defining a flow path for air to pass through the heat exchanger, and a fan generating an air flow inside the duct. Where the heat exchanger comprises a tube in which a refrigerant flows and a fin coupled to an outer surface of the tube. Where the tube is eccentrically arranged to a side of the duct.

A heat exchanger includes a casing configured to direct a working fluid therethrough, and at least one heat exchanger (HE) section in the casing. Each HE section includes a pair of spaced supports. The spaced supports include: an upstream support and a downstream support with at least one of them including a coolant carrying body configured to direct a coolant therethrough. A first cross-support couples to and extends between respective upstream and downstream supports; and at least one second cross-support couples to and extends between the respective upstream and downstream supports. Cross-supports are vertically distanced from adjacent cross-supports. A plurality of tube positioners coupled to each cross-support position a plurality of heat exchange tubes extending across a working fluid path through the casing. The tube positioners and the cooling of the cross-supports allows ferritic material to be used for once-through, duct-fired HRSGs.

Heat exchanger fins and heat exchangers are disclosed. The heat exchanger fins disclosed herein comprise louvers and winglet-type vortex generators arranged to improve heat transfer efficiency.

Heat exchanger fins and heat exchangers are disclosed. The heat exchanger fins disclosed herein comprise louvers and winglet-type vortex generators arranged to improve heat transfer efficiency.