Air-water separator for condensing heat exchanger
In accordance with at least one aspect of this disclosure, a system includes a liquid-gas separator. The liquid-gas separator includes: a substantially planar body configured to be seated in a fluid flow to separate a flow of liquid from the fluid flow, one or more apertures disposed in the body configured collect the flow of liquid, and one or more diverters integrally formed on or in the body configured divert the flow of liquid towards the one or more apertures. In certain embodiments, the planar body can be additively manufactured.
1 . A system, comprising:
a liquid-gas separator including, a substantially planar body configured to be seated in a fluid flow to separate a flow of liquid from the fluid flow;
one or more apertures disposed in the body configured to collect the flow of liquid; and
one or more diverters integrally formed on or in the body configured to divert the flow of liquid towards the one or more apertures;
wherein the one or more diverters includes a pair of ramps angled oblique to a longitudinal axis of the planar body and diverging away from the planar body configured to direct the fluid flow up and over the pair of ramps and to separate the flow of liquid from the fluid flow and divert the flow of liquid between the pair of ramps.
2 . The system of claim 1 , wherein the pair of ramps are arranged to form a chevron pattern, wherein an aperture of the one or more apertures is disposed at a converging point of the chevron pattern.
3 . The system of claim 2 , wherein the pair of ramps is a first pair of ramps in a plurality of pairs of ramps, wherein the plurality of pairs of ramps are disposed along an axial length of the planar body.
4 . The system of claim 1 , wherein the one or more diverters includes a hydrophilic coating disposed on one or more portions of the planar body configured to separate the flow of liquid from the fluid flow and divert the flow of liquid towards the one or more apertures.
5 . The system of claim 1 , wherein the one or more diverters includes a hydrophobic coating disposed on one or more portions of the planar body configured to separate the flow of liquid from the fluid flow and divert the flow of liquid towards the one or more apertures.
6 . The system of claim 1 , further comprising a heat exchanger body including:
a heat exchanger core, the heat exchanger core including,
gas flow path defined between a gas inlet and a gas outlet; and
a condensate flow path defined between the one or more apertures of the liquid-gas separator and a condensate outlet, wherein the liquid-gas separator is integrally formed with in the heat exchanger core such that the liquid-gas separator is disposed in the gas flow path, wherein the liquid-gas separator is configured to separate the flow of liquid from a flow of gas, direct the flow of gas to the gas outlet and divert the flow of liquid through the apertures and to the condensate outlet.
7 . The system of claim 6 , wherein the heat exchanger body includes a cross flow heat exchanger body, and further comprising a liquid flow path defined between a liquid inlet and a liquid outlet, wherein the liquid flow path is fluidly isolated from the gas flow path and the condensate flow path.
8 . The system of claim 6 , wherein the liquid-gas separator is configured to separate the flow of liquid from a flow of gas, direct the flow of gas to the gas outlet and divert the flow of liquid through the apertures and to the condensate outlet in a weightless environment.
9 . The system of claim 8 , wherein the weightless environment includes a spacecraft in outer space.
10 . A system, comprising:
a liquid-gas separator including,
a substantially planar body configured to be seated in a fluid flow to separate a flow of liquid from the fluid flow;
one or more apertures disposed in the body configured to collect the flow of liquid; and
one or more diverters integrally formed on or in the body configured to divert the flow of liquid towards the one or more apertures;
wherein the one or more diverters includes a pair of ramps angled oblique to a longitudinal axis of the planar body and diverging away from the planar body configured to direct the fluid flow over the pair of ramps and to separate the flow of liquid from the fluid flow and divert the flow of liquid between the pair of ramps;
wherein the pair of ramps are arranged to form a chevron pattern, wherein an aperture of the one or more apertures is disposed at a converging point of the chevron pattern;
wherein the pair of ramps is a first pair of ramps in a plurality of pairs of ramps, wherein the plurality of pairs of ramps are disposed along an axial length of the planar body; and
wherein the planar body is a first planar body, and further comprising a second substantially planar body configured to be seated in the fluid flow opposite the first planar body forming a flow channel therebetween, wherein the second planar body includes:
one or more apertures disposed in the second planar body configured to collect a flow of liquid; and
one or more diverters integrally formed on or in the second planar body configured to divert the flow of liquid towards the one or more apertures,
wherein the one or more diverters of the second planar body includes a plurality of pairs of ramps angled oblique to a longitudinal axis of the planar body and diverging away from the second planar body configured to direct the fluid flow over each ramp of the plurality of pairs of ramps and to separate the flow of liquid from the fluid flow and divert the flow of liquid between each the pair of ramps, wherein each pair of ramps of the second planar body are arranged to form a chevron pattern, wherein an aperture of the one or more apertures of the second planar body is disposed at a converging point of the chevron pattern, wherein the plurality of pairs of ramps of the second planar body are disposed along an axial length of the second planar body, wherein the plurality of pairs of ramps and plurality of apertures of the second planar body are axially offset from the plurality of pairs of ramps and the plurality of apertures of the first planar body.
11 . The system of claim 10 , wherein the one or more diverters includes a hydrophilic coating disposed on one or more portions of the planar body configured to separate the flow of liquid from the fluid flow and divert the flow of liquid towards the one or more apertures.
12 . The system of claim 10 , further comprising a heat exchanger body including:
a heat exchanger core, the heat exchanger core including,
gas flow path defined between a gas inlet and a gas outlet; and
a condensate flow path defined between the one or more apertures of the liquid-gas separator and a condensate outlet, wherein the liquid-gas separator is integrally formed with in the heat exchanger core such that the liquid-gas separator is disposed in the gas flow path, wherein the liquid-gas separator is configured to separate the flow of liquid from a flow of gas, direct the flow of gas to the gas outlet and divert the flow of liquid through the apertures and to the condensate outlet.
13 . The system of claim 12 , wherein the heat exchanger body includes a cross flow heat exchanger body, and further comprising a liquid flow path defined between a liquid inlet and a liquid outlet, wherein the liquid flow path is fluidly isolated from the gas flow path and the condensate flow path.
14 . The system of claim 12 , wherein the liquid-gas separator is configured to separate the flow of liquid from a flow of gas, direct the flow of gas to the gas outlet and divert the flow of liquid through the apertures and to the condensate outlet in a weightless environment.
15 . The system of claim 14 , wherein the weightless environment includes a spacecraft in outer space.