ThermoFl Th Float Orange B 600 Deaths from hypothermia in water - PowerPoint PPT Presentation

ThermoFl Th Float Orange B

600 Deaths from hypothermia in water annually in US “Fisherman sacrifice their time in crashing waves and icy conditions. Accidents will always happen...and minutes in the cold water equate to matters of life or death.” Lt. Brandon Aten Chief Incident Management Division Orange B

Benchmark Type III PFD Work Suit Insulation - + Movability + - Orange B

ThermoFloat: A Heating Lifejacket Exothermic Reaction: CaCl 2 (s) → Ca 2+ (aq) + 2 Cl - (aq) ΔH° r = -82.9 kJ / mol Orange B

Orange B

Testing: Viability of CaCl 2 Water Container ➢ 170 ℉ peak temperature with room temperature tap Thermometer water hole ➢ 154 ℉ peak temperature with 32 ℉ salt water ➢ 70 minutes to cool to critical body core temperature (95 ℉ ) Reaction Box Orange B

Key Findings ➢ CaCl 2 produces heat too quickly ➢ Gas is not a good heat conductor Demonstrated in ➢ A control valve is needed to keep a steady sketch model heat source and control gas pressure ➢ Insulation (i.e. neoprene) could be used to Validated through research slow down heat transfer from body to water Orange B

Next Steps ➢ Design a mechanism to accurately control the heat dissipation at safe levels ➢ Integrate insulation into the vest for reduced heat loss Orange B

Value: Priceless Orange B