System and method for cooling via phase change

A method for passively cooling a solution, the method comprising the steps of:

• (i) supplying one or more cooling tubes to a desired location in a container having therein at least one solution to be cooled, wherein the one or more cooling tubes are individually, or jointly, closed in nature so that the one or more cooling tubes can be positively or negatively pressurized;
• (ii) placing a coolant in each of the one or more cooling tubes;
• (iii) supplying at least one pressure control means to one or more of the cooling tubes, wherein the at least one pressure control means is able to positively or negatively control the pressure present in the one or more cooling tubes;
• and
• (iv) controlling the pressure in the one or more cooling tubes so as to create a phase change in the coolant contained in each cooling tube thereby causing heat to be removed from the solution to be cooled,
• wherein the coolant is selected from water, a mixture of ethylene glycol and water, a solution of uranyl nitrate, a solution of uranyl sulfate, heavy water, borated water, or any suitable mixture of two or more thereof.

A method for passively cooling a solution, the method comprising the steps of:

• (A) supplying one or more cooling tubes to a desired location in a container having therein at least one solution to be cooled, wherein the one or more cooling tubes are individually, or jointly, closed in nature so that the one or more cooling tubes can be positively or negatively pressurized;
• (B) placing a coolant in each of the one or more cooling tubes;
• (C) supplying at least one pressure control means to one or more of the cooling tubes, wherein the at least one pressure control means is able to positively or negatively control the pressure present in the one or more cooling tubes;
• and
• (D) controlling the pressure in the one or more cooling tubes so as to create a phase change in the coolant contained in each cooling tube thereby causing heat to be removed from the solution to be cooled,
• wherein the coolant is selected from water, a mixture of ethylene glycol and water, a solution of uranyl nitrate, a solution of uranyl sulfate, heavy water, borated water, or any suitable mixture of two or more thereof, and wherein the pressure in the one or more cooling tubes is controlled to be less than standard atmospheric pressure.