COLD HEAT-STORAGE PERFORMANCE OF AMINE WATER SOLUTIONS/

With a view to utilizing the cold heat of Liquid Natural Gas, candidat es for cold storage media, which store cold heat in a temperature rang e between -20 to -50 degrees C as latent heat, are investigated. Amine /water binary solutions are found to be promising candidates. A liquid /solution equilibrium experiment shows eutectic character of these sol utions. Ametylamine/water solution is expected to be the lowest temper ature cold heat storage media, and is examined in a phase change chara cteristic experiment. The solution generats dendrite crystals in the f irst phase change. The generated liquid/solid solution shows eutectic slurry character. Based on the experimental results, the possibility o f using the eutectic solution as a fluid high-density cold storage med ia is discussed.