A passive flow divider for providing outflows is described. The passive flow divider includes at least one inlet for an inflow and a plurality of outlets for said outflows, a housing enclosing a main partition that separates an intake space and a discharge space, a common end located at an interface between the intake space and the discharge space, and a baffle arranged in the intake space between said inlet and the common end. The passive flow divider further includes a plurality of distribution chambers arranged in the discharge space and adjacent to each other, each distribution chamber being arranged to lead an outflow from the common end to one of the outlets.

The present invention brings about an increase in the thermal conductivity of an elastomer molded article over a preexisting value. The method according to the present invention is a method that uses at least one of a liquid crystalline polymer and a precursor therefor as a thermal conductivity modifier for an elastomer. That is, the thermal conductivity modifier for an elastomer according to the present invention contains at least one of a liquid crystalline polymer and a precursor therefor. The thermal conductivity modifier may contain only at least one of a liquid crystalline polymer and a precursor therefor or may contain at least one of a liquid crystalline polymer and a precursor therefor along with an additional component. The method and thermal conductivity modifier according to the present invention can bring about an increase in the thermal conductivity of an elastomer molded article over a preexisting value.

The present invention brings about an increase in the thermal conductivity of an elastomer molded article over a preexisting value. The method according to the present invention is a method that uses at least one of a liquid crystalline polymer and a precursor therefor as a thermal conductivity modifier for an elastomer. That is, the thermal conductivity modifier for an elastomer according to the present invention contains at least one of a liquid crystalline polymer and a precursor therefor. The thermal conductivity modifier may contain only at least one of a liquid crystalline polymer and a precursor therefor or may contain at least one of a liquid crystalline polymer and a precursor therefor along with an additional component. The method and thermal conductivity modifier according to the present invention can bring about an increase in the thermal conductivity of an elastomer molded article over a preexisting value.

A heat transfer tube includes: an outer tube; an inner tube inserted into the outer tube so as to be in close contact with the outer tube, to form a double tube with the outer tube; an insertion hole formed, between an outer circumferential surface of the outer tube and an inner circumferential surface of the inner tube, penetrating in a longitudinal direction of the outer tube and the inner tube; and an insertion tube inserted into the insertion hole The insertion tube allows an optical fiber to be inserted into the insertion tube to measure a surface temperature of the double tube.

A heat transfer tube includes: an outer tube; an inner tube inserted into the outer tube so as to be in close contact with the outer tube, to form a double tube with the outer tube; an insertion hole formed, between an outer circumferential surface of the outer tube and an inner circumferential surface of the inner tube, penetrating in a longitudinal direction of the outer tube and the inner tube; and an insertion tube inserted into the insertion hole The insertion tube allows an optical fiber to be inserted into the insertion tube to measure a surface temperature of the double tube.

A heat treatment device includes first heat transfer bodies including first flow channels, second heat transfer bodies including second flow channels and each being stacked on the respective first heat transfer bodies, and a casing having a space communicating with the second flow channels and being in contact with each surface including the edge of the connection interface between each first heat transfer body and each second heat transfer body. The first heat transfer bodies each include a third flow channel provided in a wall portion isolating the first flow channels from the space of the casing. The first flow channels are grooves in contact with the connection interface, and the third flow channel is a groove in contact with the connection interface and intersecting with a virtual line connecting the first flow channels with the space of the casing at the connection interface.

The present invention relates to an air conditioner. The air conditioner according to the present embodiment has a refrigeration capacity of 11 kW to 16 kW, inclusive, and uses R134a as a refrigerant circulating therein, and since a refrigerant pipe therein is made of a ductile stainless steel material having 1% or less of a delta-ferrite matrix structure with respect to the grain size area thereof, the refrigerant pipe can maintain strength and hardness as good as or better than those of a copper pipe, while also maintaining good processability.

According to various embodiments of the invention, a heat exchanger can have at least one duct for conveying a coolant, wherein the at least one duct has a first section and a second section, the first section being arranged in the at least one duct upstream relative to the second section, in relation to a flow direction of the coolant, the second section having a cross section area that is larger than a cross section area of the first section, such that a sublimation of the coolant in the second section is made possible.

A multiple-stage fractal heat exchanger includes two or more first fluid flow paths arranged adjacent to one another. Each first fluid flow path is defined by a main inlet channel on one side which diverges into two or more smaller channels to form a central first fluid flow path. In each of the two or more first fluid flow paths. The two or more smaller channels converge away from the central first fluid flow path into a main outlet channel on an opposite side of the first fluid flow path to the main inlet channel. The main outlet channel of each of the two or more first fluid flow paths is configured to be connected to the main inlet channel of an adjacent first fluid flow path.

Disclosed is a heat exchanger. An end cover is assembled and fixed to a port of a first header in a lengthwise direction or a port of a second header in a lengthwise direction, and the end cover includes a body and a first opening formed in the body. The body includes a second cavity and a first recess. The first recess includes a first bottom wall close to the first opening, the first bottom wall is provided with a third opening, the third opening is in communication with the first opening and the second cavity, and the first opening is farther away from an inner cavity of the first header or an inner cavity of the second header than the second cavity. The open area of the first recess is larger than that of the third opening.