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1. (WO2019046397) MEMBRANE EVAPORATION ENHANCED VAPOR CONDENSER
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CLAIMS

We claim:

1. A membrane evaporative condenser (MEC) comprising a repeating sequence of channels for evaporation and/or condensation, each sequence of channels comprising:

a condensation channel for condensation of a vapor to a liquid, the condensation channel comprising:

two walls of a non-permeable material where both walls of the non-permeable material of channels that do not terminate the repeating sequence of channels is a shared wall with a wall of a non-permeable material of a LEM conduit for containment of a liquid evaporative medium (LEM), the LEM conduit comprising:

a first wall of the non-permeable material; and

a second wall comprising a moisture transfer membrane (MTM), the surface of the MTM outside of the LEM conduit being a site for evaporating the LEM from the LEM conduit;

at least one LEM inlet to the LEM conduit;

at least one vapor inlet for the vapor; and

at least one liquid outlet for the liquid; and

zero to one hundred evaporation-condensation channels, each comprising:

the LEM conduit;

a second wall comprising the non-permeable material, the second wall being a site for condensation of the LEM to an LEM condensate that evaporates from the MTM;

at least one LEM inlet and at least one LEM outlet to the LEM conduit; and

at least one LEM condensate outlet; and

an evaporation channel, wherein all of the walls that do not terminate the repeating sequence of channels comprise LEM conduits and a space between the MTMs of the LEM conduits or a terminal space between the MTM and a non-permeable wall of a terminal evaporation channel, and wherein each of the evaporation channels has at least one working fluid inlet and at least one working fluid outlet.

2. The MEC according to claim 1 , wherein the sequence of channels has zero evaporation-condensation channels, comprising a repeating sequence of alternating condensation channels and evaporation channels.

3. The MEC according to claim 1 , wherein the sequence of channels has 1 to 10 evaporation-condensation channels in the sequence of channels.

4. The MEC according to claim 1, wherein the MTM is Aqualyte™ and the LEM is water.

5. The MEC according to claim 1 , wherein the LEM is from one source.

6. The MEC according to claim 1 , wherein the LEM is from a plurality of sources.

7. The MEC according to claim 1 , wherein the LEM is non-potable water.

8. The MEC according to claim 7, further comprising a filter before the LEM inlet.

9. The MEC according to claim 1 , further comprising a vapor compression device, wherein the wet working fluid of the wet working fluid outlet of the evaporation channel is input to the compression device and the output of the compression device is delivered to the vapor inlet of the condensation channel.

10. The MEC according to claim 1 , wherein the LEM of the evaporation channel and the LEM of the evaporation-condensation channel are from different sources.

1 1. The MEC according to claim 10, further comprising at least one pump coupled to at least one of the condensation channel, the evaporation-condensation channel, and the evaporation channel.

12. The MEC according to claim 1 , wherein the LEM is water and the LEM condensate is purified water.

13. The MEC according to claim 1 , further comprising at least one evaporative chiller and dehumidifier comprising an LEM channel comprising a first MTM and a second MTM, a vacuum evaporation conduit between the first MTM and a first wall comprising a non-porous material, and a condensation conduit comprising the second MTM and a second wall comprising a non-porous material wherein the wet working fluid outlet of the evaporation channel is connected to the condensation conduit.

14. A method of preparing an MEC according to claim 1, comprising:

providing a plurality of condensation channels and evaporation channels in an alternating sequence;

connecting the vapor inlets to at least one conduit for connection to a vapor source; connecting the LEM inlets to at least one conduit for connection to a LEM source; connecting the working fluid inlet to at least one conduit for connection to a working fluid source;

connecting the liquid outlets to at least one conduit to at least one reservoir, recycling device, or drain; and

optionally, connecting the LEM outlets to at least one conduit to at least one reservoir, recycling device, or drain.

1 5. The method of preparing an MEC according to claim 14, further comprising:

providing a plurality of evaporation-condensation channels; and

connecting the LEM condensate outlets to at least one conduit to at least one reservoir, recycling device, or drain.

16. The method of preparing an MEC according to claim 13, further comprising:

providing at least one evaporative chiller and dehumidifier;

connecting the working fluid outlet to the condensation conduit; and

connecting the vacuum evaporation conduit to a vacuum source.

17. The method of preparing an MEC according to claim 15, wherein the vacuum source is an aspirator connected to a fluid flow within the MEC.

18. A device comprising the MEC according to claim 1 , wherein the device is: an HVAC; a process condenser; a distillation device; a crystallization device treatment device; or a fluid treatment device.