SYSTEME PORTE AUX COUVERCLES DE GLACIERES DE CAMPING PAR COMBINAISON DE TROIS ELEMENTS INDISSOCIABLES : LE COUVERCLE, LE BAC ECHANGEUR REUNIS RECUEILLENT UNE CHARGE CHIMIQUE GENERATRICE DE FROID

摘要

Portable cold source employs the reaction between ammonium nitrate and urea when water is added to cause the lowering in temperature of the mixt. as the materials go into soln. An external fluid is cooled by circulation through a serpentine heat exchanger tube inside the reaction mixt. Used e.g. as a cooler for camping and other small-duty applications.