TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: The emulsion comprises a heat capacity of up to and including about 2.8 J/g/K. The polar internal phase comprises about 1-50% of the emulsion. The azeotropic mixture includes water about 5-40% and an alcohol component about 60-95% of the polar internal phase.The water comprises deionized water and the alcohol is ethylene glycol, propylene glycol, ethanol, methanol, acetone, acetonitrile, 2-butanol, dichloroethane, triethyl amine, acetal, allyl alcohol, cyclohexane, propanol, propyl acetate and/or 1,3 propane diol.The polar internal phase comprises a heat capacity greater than or about 2.5 J/g/K; a boiling point of greater than or about 60degreesC (preferably 60-100degreesC); a freezing point of less than or about -35degreesC (preferably -35 to -40degreesC); a viscosity of less than or about 2 cP at about 80degreesC (preferably 15 cP at about 0degreesC); a thermal conductivity of greater than or about 0.4 (preferably 0.05-0.4) W/m-K; and an electrical resistivity of greater than or about 0.25 (preferably 0.25-40) Mohm cm. The hydrocarbon external phase comprises 50-95% of the emulsion. The hydrocarbon external phase comprises kerosenic hydrocarbon (preferably kerosene). The kereosenic hydrocarbon comprises a heat capacity of up to and including about 2.5 J/g/K; a viscosity of less than or about 10 cP at about 80degreesC (preferably 40 cP at about 0degreesC); a freezing point of less than or about -35degreesC (preferably -40 to 0degreesC); a boiling point of greater than or about 85degreesC (preferably 175-325degreesC); a thermal conductivity of up to and including about 0.15 (preferably 0/05-0.04) W/m-K; an electrical resistivity of greater than or about 18 (preferably 0.25-40) Mohm cm; and a flash point of 37.7-65.5degreesC, where the kerosenic hydrocarbon auto ignites at about 228degreesC.The fuel flowpath comprises an anode flowpath configurated to route the fuel through at least a portion of the fuel cell and the oxygen flowpath comprises a cathode flowpath configurated to route the oxygen through at least a portion of the fuel cell. The electrochemical catalytic reaction cell further comprises an anode in fluid communication with the anode flowpath and upon which a catalytic reaction with the fuel is configured to take place; a cathode in fluid communication with the cathode flowpath and upon which a catalytic reaction with the oxygen is configured to take place; and a membrane disposed between the anode and the cathode such that electrolyte communication is established during operation of the fuel cell.The fuel cell further comprises a recirculation assembly comprising a recirculation flowpath, a pump, and a radiator; the coolant isolation manifold further includes an inlet and an outlet; the recirculation flowpath fluidly connects the coolant isolation manifold inlet and the coolant isolation manifold outlet; and a system comprising a fuel cell stack comprising a plurality of the fuel cells. The system further comprises a vehicle body, where the fuel cell stack is configured to at least partially provide the vehicle body with motive power.Preferred Process: The cooling of fuel cell further comprises configuring the fuel flowpath to comprise an anode flowpath configured to route the fuel through at least a portion of the fuel cell; configuring the oxygen flowpath to comprise a cathode flowpath configured to route the oxygen through at least a portion of the fuel cell; evaporating at least a portion of the polar internal phase by boiling the polar internal phase in the coolant solution manifold at a substantially constant temperature and pressure (where the temperature is the boiling point of the of the polar internal phase and the pressure is about 1 atm); and evaporating the polar internal phase in the coolant isolation manifold reduces the internal temperature of the electrochemical catalytic reaction cell.The configuring the electrochemical catalytic reaction cell to further comprise an anode in fluid communication with the anode flowpath and upon which a catalytic reaction with the fuel is configured to take place; a cathode in fluid communication with the cathode flowpath and upon which a catalytic reaction with the oxygen is configured to take place; and a membrane disposed between the anode and the cathode such that electrolyte communication is established during operation of the fuel cell. The polar internal phase is less than about 5%.