Resumo

BOHORQUEZ-ESCOBAR, Celso Bayardo; GUILLEN-GORDIN, Reinaldo Javier; IMBERT-GONZALEZ, Josué  e  HERNANDEZ-RODRIGUEZ, Julio Cesar. Determination of the adsorption and desorption of zeolite-methanol pairs in a cooling cycle. Ingeniería Mecánica [online]. 2020, vol.23, n.3  Epub 01-Dez-2020. ISSN 1815-5944.

In this work, the concentrations and quantities of methanol that adsorbed and desorbed natural zeolite and acid-bath modified zeolite, both from the Palmarito de Cauto deposit in Santiago de Cuba, were determined. This process allowed the determination of the best performance for an adsorption cooling system. The necessary pressure, temperature and weight values were measured in an experimental facility. To draw the Clapeyron diagram representing the adsorption refrigeration cycle, we worked with an evaporation temperature of -2 ºC and a hot source temperature of 90 ºC. The results obtained with the modified zeolite indicated that it allowed to have 8,3 g of methanol for each kg of adsorbent. Comparison of the methanol adsorptive capacity of the investigated zeolites with other types of internationally marketed zeolites showed that the specific cooling power values per unit mass of adsorbent will be lower than expected.

Palavras-chave : adsorption cooling; zeolite-methanol pair; evaluation.

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