A cell structure is provided that is (i) capable of handling, on inner and outer surfaces, heat transfer requirements of heat exchangers and/or be a substrate for coatings for catalytic reactors, (ii) able to be easily combined and interconnected into a variety of shapes, and (iii) may be created in an additive manufacturing process. The provided cell structure may be replicated and interconnected with other cell structures to create lattice structures in a variety of shapes. Accordingly, the cell structure may be used to build a heat exchanger or catalytic reactor that has reduced weight compared to traditional architectures.

A method for heating a production fluid in a fluid heating system includes receiving the production fluid by a pressure vessel, the pressure vessel arranged to receive the production fluid and to provide heated production fluid, receiving a thermal transfer fluid by a tubeless heat exchanger core, the tubeless heat exchanger core disposed at least partially within the vessel, the tubeless heat exchanger core comprising an inner casing and an outer casing disposed around the inner casing, the inner and outer casings defining therebetween a flow passage for a thermal transfer fluid to flow, the tubeless heat exchanger core further comprising a core inlet and a core outlet, and at least one of the core inlet and core outlet being disposed on the inner casing, and wherein the flow passage guides the flow of the thermal transfer fluid from the core inlet to the core outlet and wherein at least a portion of respective outer surfaces of the inner and outer casings are arranged to be contacted by the production fluid, and transferring heat from the thermal transfer fluid to the production fluid through at least a portion of both the inner and outer casings.

The heat exchanger (1) contains a jacket element (2) and an insert element (3), wherein the insert element (3) is arranged in the operating state in the interior of the jacket element (2). The insert element has a longitudinal axis (4). The insert element (3) contains an insert jacket element (31) and a plurality of web elements (9, 10), the web elements (9, 10) having a first end (13) and a second end (14). The first end (13) and the second end (14) of each web element (9, 10) are connected to the insert jacket element (31) at different locations. At least a portion of the web elements (9, 10) includes web element channels (11, 12), the web element channels (11, 12) extending from the first end (13) of the web element (11) to the second end (14) of the web element (11). An intermediate jacket element (5) is arranged between the insert jacket element (31) and the jacket element (2).

A fluid heating system including: a pressure vessel shell including: a first inlet and first outlet; a tubeless heat exchanger core disposed entirely in the pressure vessel shell, the tubeless heat exchanger core including a second inlet and a second outlet; an outlet member, which penetrates the pressure vessel shell and which connects the second outlet of the tubeless heat exchanger core and an outside of the pressure vessel shell; and a conduit having a first end connected to the second inlet of the tubeless heat exchanger core and a second end disposed on the outside of the pressure vessel shell.

Methods and systems are provided for a heat exchanger. In one example, a method may include adjusting a flap to adjust a number of conduits configured to receive exhaust gas recirculate and exhaust gas within the heat exchanger.

A heat exchange core according to one embodiment includes: a header flow path that extends in a first direction; and a plurality of branching flow paths that are connected to the header flow path and extend in a second direction intersecting with the first direction. A first angle formed by the header flow path with respect to a virtual connection plane between the header flow path and the plurality of branching flow paths is less than a second angle formed by the branching flow paths with respect to the connection plane.

The present disclosure provides for heat exchanger assemblies, systems and methods. More particularly, the present disclosure provides for radially-flowing cross flow heat exchanger assemblies and systems that increase primary heat transfer surface, and related methods of use. The present disclosure provides for a cross-flow heat exchanger assembly that can be packaged cylindrically or the like (or other self-enclosed shapes), and where the heat exchanger assembly also increases and/or maximizes primary heat transfer surface area by utilizing a weave-style or interwoven heat exchanger core. A first circuit flow path can be axial or circumferential in nature, and a second circuit flow path can be radial.

A heat exchanger and a method for additively manufacturing the heat exchanger are provided. The heat exchanger includes a housing defining a flow passageway having a plurality of heat exchange banks stacked therein. Each heat exchange bank includes a plurality of heat exchange tubes that form a lattice structure that extends from a first end proximate a central manifold outward along the radial direction toward a second end proximate an annular outer manifold. The central manifolds and the annular outer manifolds fluidly couple the heat exchange tubes of adjacent heat exchange banks in an alternating manner to form a serpentine flow path for a flow of heat exchange fluid.

An air terminal for a heating or air conditioning system including a housing, a fresh air inlet in the housing to supply a fresh airflow to the air terminal, an outlet diffuser at the housing to allow airflow from the air terminal into a conditioned space, an inlet diffuser located at the housing to allow return airflow from the conditioned space into the air terminal, a coil located in the housing to condition the fresh airflow and/or the return airflow prior to the fresh airflow and/or the return airflow flowing into the conditioned space. A fan is located in the housing to urge return airflow through the inlet diffuser and across the coil. The fan and the inlet diffuser are located at a first side of the coil and the outlet diffuser and the fresh air inlet are located at a second side of the coil opposite the first side.

An aircraft including an airframe, a propulsion system, and a heat exchanger is presented. The heat exchanger of the aircraft may include (i) a structural body including a plurality of hollow channels, (ii) a first fluid positioned within the plurality of hollow channels of the structural body, (iii) a plurality of openings positioned on a first side of the structural body and in fluid communication with the plurality of hollow channels, (iv) a wick structure positioned on the first side of the structural body, wherein the wick structure is positioned adjacent to an exterior of the plurality of hollow channels and in fluid communication with the plurality of openings, (v) an inlet to the structural body operable to provide a second fluid from an aircraft system, and (vi) an outlet from the structural body operable to receive the second fluid after receiving heat from the first fluid.