Both microwave absorption and magnetocaloric effect (MCE) are two essential performances of magnetic materials. We observe that LaFe(11.6)Si(1.4)C(0.2)H(1.7) intermetallic compound exhibits the advantages of both giant microwave absorption exceeding -42 dB and magnetic entropy change of -20 Jkg(-1)K(-1). The excellent electromagnetic wave absorption results from the large magnetic loss and diel...

The main objective of this article aims to enhance a single stage absorption refrigeration machine, using the ammonia-water pair as working fluid, and from improvement its exergetic performances by means vapor rectification system. rectifier makes it possible emit enriched in pure fluid (ammonia) with high flow rate; one is thus transformed into condensate after condensation; also allows evacua...

By means of carefully devised assumptions, a simple linear model is presented for an absorption refrigeration unit employing either water-lithium bromide or ammonia-water refrigerant-absorbent pairs. Absorption systems are an alternative to vapour compression systems by being thermally activated. Such heat energy may come from the sun or even from hot exhaust gases from a particular engineering...

A novel configuration of pervaporation and vapor permeation processes is introduced. In the suggested process the driving force for permeation is enabled by the absorption of the permeate vapors using a suitable solvent with a low vapor pressure. Thus, the refrigeration needed for condensing the permeate under vacuum can be overcome and cost savings can be achieved. Moreover, very low vacuum pr...