Improving the performance of direct contact membrane distillation (DCMD) for liquid desiccant regeneration has attracted increasing attention. This paper presents multi-objective optimization of a DCMD regenerator to maximize its regeneration capacity (RC) and thermal efficiency (TE) simultaneously when treating a 25–30 wt.% lithium chloride desiccant solution. The key parameters, including initial feed concentration, feed and distillate inlet temperatures and volumetric flow rate were optimized using two methods (i.e. non-dominated sorting genetic algorithm (NSGA-Ⅱ) based method and a fuzzy clustering and weighted cumulative probability distribution (FC-WCPD) technique). The first method obtained an optimal Pareto front, in which the RC and TE were in the ranges of 0.77–0.91 wt.% and 12.2%–13.3%, respectively. The feed and distillate inlet temperatures showed a conflicting effect on enhancing the two objectives, while the initial feed concentration and volumetric flow rate wer
A new paper in the journal Energies has investigated different methods for estimating state of charge in lithium-ion batteries, a key technology in applications such as electric vehicles. The research has been conducted by scientists from Brazil.
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Tensegrities are pin-jointed frameworks consisting of discontinuous compressive struts held within a tensioned cable net. Existing in a state of self-equilibrium, tensegrity structures can be found in vary-ing states of rigidity dependent on the initial pretension existing within the cables. The current state of tensegrity understanding appears comprehensive, and yet, tensegrities appear to be relegated to a class of architectural sculpture, due to the complexity associated with understanding their behaviour. This com-plexity is often attributed to the lack of application for tensegrity structures within the built environment. For this reason, this thesis aims to examine the effect of compressive loading on tensegrities, and how different pretensions, geometries and materials aid in resisting this applied loading.
A review was conducted to determine a current understanding of load bearing tensegrity structures. Through conducting this review, it was found that stiffness and load bearin