Assessment of the operation of a low-temperature adsorption refrigerator

We propose a simple algorithm, based on Polanyi’s temperature invariance principle, for selecting adsorbents that hold promise for the development of adsorption refrigerators using sources of low-grade heat (industrial heat wastes, solar energy, etc.). It is shown that, among the materials considered, those holding most promise for the development of adsorption systems for cooling water are new composite selective water sorbents, primarily KSKG silicagel modified with calcium chloride.