A parametric study regarding moisture content of biomass, the efficiency of expander I, LHV of biomass, the salt concentration of seawater, and a number of MED effects on system performance was conducted. This integrated system produces electricity, cooling, distilled water, sodium hy-droxide (NaOH), and hydrogen chloride (HCl). The combined system composed of biomass gasifier, CO 2 cycle, cooling system, multi-effect distillation (MED), and electrodialysis was assessed. In this study, a novel multigeneration system is considered from energy, exergy, and economic points of view. The same approach is applied in this paper, highlighting the differences and the difficulties related to the variation of the reference pressure and temperature in the reference environment.
The Gouy-Stodola Theorem is also used in various textbooks for defining the flow and the non-exergy of a control volume. In this way the Gouy-Stodola Theorem still holds, but the allocation of exergy destruction is generally different from that calculated in the usual hypothesis of constant temperature and pressure of the reference environment. These additional terms take into account the potential useful work (exergy) destruction related to the variation of the ambient condition during the considered time interval. The equations that have been derived taking into account the variation of reference temperature and pressure show that two additional terms appear in both reversible and irreversible maximum useful work output, besides the well-known terms. The well-known theorem is re-obtained in this paper, relaxing the hypothesis about a constant value for temperature and pressure of the reference environment. Moving effortlessly among analysis, essay, and graphics, this streamlined edition of Adrian Bejan's powerful presentation will inspire future generations of researchers and students in all areas of engineering, physics, and life sciences.The Gouy-Stodola Theorem is the theoretical basis for allocating irreversibility and for identifying the maximum possible efficiency for any kind of energy conversion system. Now, his Third Edition builds on the success of its trailblazing predecessors by providing state-of-the-art coverage in a slimmer, more convenient book. A brand-new, thought-provoking edition of the unmatched resource on engineering thermodynamicsĪdrian Bejan's Advanced Engineering Thermodynamics established itself as the definitive volume on this challenging subject.
0 kommentar(er)
