Heat dissipation systems with hygroscopic working fluid

A method for heat dissipation using a hygroscopic working fluid, the method comprising:

• transferring thermal energy from a heated process fluid to the hygroscopic working fluid in a chiller, to form a cooled process fluid;
• condensing liquid from a feed gas on a heat transfer surface of a feed gas heat exchanger in contact with the cooled process fluid, to form a cooled feed gas, the heated process fluid, and a condensate;
• feeding the cooled feed gas to a combustion turbine;
• dissipating thermal energy from the hygroscopic working fluid to a cooling gas composition with a fluid-air contactor, wherein the fluid-air contactor collects the hygroscopic working fluid in a fluid-air contactor hygroscopic working fluid-collection basin after it has contacted the cooling gas composition in the fluid-air contactor;
• transferring moisture between the hygroscopic working fluid and the cooling gas composition with the fluid-air contactor;
• adding at least part of the condensate to the hygroscopic working fluid;
• and
• transferring the hygroscopic working fluid from the fluid-air contactor hygroscopic working fluid-collection basin to the process heat exchanger.

A system for heat dissipation using a hygroscopic working fluid, the system comprising:

• a process heat exchanger configured to transfer thermal energy from a heated process fluid to a hygroscopic working fluid to form a cooled process fluid;
• a feed gas heat exchanger configured to condense liquid from a feed gas on a heat transfer surface of the feed gas heat exchanger in contact with the cooled process fluid, to form a cooled feed gas, the heated process fluid, and a condensate;
• and
• a fluid-air contactor configured to dissipate heat from the hygroscopic working fluid to a cooling gas composition, and configured to transfer moisture between the hygroscopic working fluid and the cooling gas composition, wherein the fluid-air contactor is configured to collect the hygroscopic working fluid in a fluid-air contactor hygroscopic working fluid-collection basin after it has contacted the cooling gas composition in the fluid-air contactor, and wherein the fluid-air contactor is configured to transfer the hygroscopic working fluid from the fluid-air contactor hygroscopic working fluid-collection basin to the process heat exchanger.