Exergy analysis of multi-effect water–LiBr absorption systems: From half to triple effect
Issue date
2010Suggested citation
Gebreslassie, Berhane Hagos;
Medrano Martorell, Marc;
Boer, Dieter;
.
(2010)
.
Exergy analysis of multi-effect water–LiBr absorption systems: From half to triple effect.
Renewable Energy, 2010, vol. 35, núm. 8, p. 1773-1782.
https://doi.org/10.1016/j.renene.2010.01.009.
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Show full item recordAbstract
An exergy analysis, which only considers the unavoidable exergy destruction, is conducted for single,
double, triple and half effect Water–Lithium bromide absorption cycles. Thus, the obtained performances
represent the maximum achievable performance under the given operation conditions.
The coefficient of performance (COP), the exergetic efficiencies and the exergy destruction rates are
determined and the effect of the heat source temperature is evaluated. As expected, the COP increases
significantly from double lift to triple effect cycles. The exergetic efficiency varies less among the
different configurations. In all cycles the effect of the heat source temperature on the exergy destruction
rates is similar for the same type of components, while the quantitative contributions depend on cycle
type and flow configuration. Largest exergy destruction occurs in the absorbers and generators, especially
at higher heat source temperatures.
Is part of
Renewable Energy, 2010, vol. 35, núm. 8, p. 1773-1782European research projects
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