Patent ID: 8555642

Claim:
A method of utilizing waste heat to create a pressurized working fluid comprising: (a) introducing a feed of a working fluid to a vessel containing an adsorbent material, and adsorbing the working fluid on the adsorbent material; (b) introducing a feed of waste heat to a heat exchanger external to the vessel containing the adsorbent material, and heating a feed of heating/cooling fluid in the heat exchanger with the waste heat; (c) introducing the heated heating/cooling fluid from the heat exchanger to the vessel, and contacting the adsorbent material directly with the heating/cooling fluid without wetting the adsorbent material with the heating/cooling fluid, and desorbing the adsorbed working fluid from the adsorbent thereby pressurizing the working fluid; (d) directing the pressurized working fluid from the vessel to a work component, and expanding the working fluid in the work component thereby cooling the working fluid.