Untethered Diver Cooling and Heating System Navy SBIR FY2009.1 Sol No.: Navy SBIR FY2009.1 Topic No.: N091-078 Topic Title: Untethered Diver Cooling and Heating System Proposal No.: N091-078-0682 Firm: Rini Technologies Inc 582 South Econ Circle Oviedo, Florida 32765 Contact: Daniel Rini Phone: (407) 359-7138 Web Site: www.rinitech.com Abstract: The objective of this project is to prove the feasibility and develop the components of a system for cooling a diver in the Shallow Water Combat Submersible (SWCS). RINI Technologies, Inc. is developing a Free Diver (untethered) Heating System (FDHS) for NAVSEA through a Phase II SBIR and proposes to build a complementary cooling system to provide thermal protection for both cold and warm water diving in contaminated water. Both units are battery powered but can be plugged into a power source of the SWCS for extended (>8 hours) run time. Each of the units proposed will be 10" long, 3" diameter, and 1.2 L volume. The heating system, which will reach TRL-6 in August of 2009, provides 300W of heat via 35�C water to the tube suit in 10�C ambient ocean water while consuming only 111W of electrical power. The proposed cooling unit will provide 250W of cooling via 20�C water in 40�C ambient ocean water, consuming only 115W of electrical power. Through the use of these systems, the Navy can perform un-encumbered long duration dives in contaminated water at temperature extremes in the SWCS and allow for untethered diving. Benefits: RINI's heating and cooling unit will benefit the Navy by allowing for dive times greater than 8 hours in the SWCS and SDV while maintaining a high level of diver mobility. In addition to use with the SWCS, the heating and cooling units can be used in untethered dives with a battery, allowing for complete freedom and extended dive times at temperature extremes. Commercial applications include non-military technical dives such as law enforcement and search and rescue teams that require heating in extremely cold water and cooling in contaminated water. Return