System and method for transferring heat using an expanded gas

A system, comprising:

• a fuel source for providing a fuel;
• a first expansion valve formed in a first fuel line connected to the fuel source, for expanding the fuel;
• a heat exchanger connected via the first fuel line to the expansion valve, the heat exchanger being cooled by the expanded fuel;
• and
• a fan for blowing air over the heat exchanger such that the air is cooled by contacting the heat exchanger.

A method, comprising:

• providing a fuel via a fuel source;
• expanding the fuel using a first expansion valve formed in a first fuel line connected to the fuel source;
• and
• delivering a heat transfer medium to the first expansion valve such that the heat transfer medium is cooled by contacting the first expansion valve.

A method, comprising:

• providing a fuel via a fuel source;
• expanding the fuel using a first expansion valve formed in a first fuel line connected to the fuel source;
• using the expanded fuel to cool a heat exchanger connected via the first fuel line to the expansion valve;
• and
• blowing air over the heat exchanger such that the air is cooled by contacting the heat exchanger.