Energy and Sustainability 2 (Wit Transactions on Ecology and by A. A. Mammoli, C. A. Brebbia

By A. A. Mammoli, C. A. Brebbia

The best way our society exists, operates and develops is strongly inspired incidentally within which power is produced and fed on. No approach in will be played with no enough provide of power, and with no there may be no creation of commodities on which the life of contemporary Society relies. The strength structures advanced over an extended interval and extra swiftly over the past centuries, as a reaction to the necessities of and Society, ranging from combustion of fuels to exploiting nuclear power and renewable assets. it really is transparent that the evolution of the strength structures is a continual method, which consists of consistent technological improvement and innovation. The presentation at the moment overseas convention contains: Renewable strength applied sciences; strength administration; power Polices; power and the surroundings; strength research; power potency; strength garage and administration.

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After weighing some considerations and making judgments about smaller components, the pieces are reassembled to present an overall picture to the DMs [12]. com, ISSN 1743-3541 (on-line) 16 Energy and Sustainability II to solve energy planning problems, based on complex problems with multiple decision makers and multiple criteria [13, 14]. MCDA methods can be divided in three main groups, each of which differs in its respective characteristics, evaluation, data type and objectives: compensatory techniques, non-compensatory techniques and fuzzy techniques.

2, is modelled using thermodynamic relations. Solar collectors b c Wt Turbine Heat Exchanger Condenser e d a Pump Wp T w out Tw HW Figure 2: Tw in Solar-powered Rankine cycle. 85, respectively. The heat added to the working fluid at the solar collectors is calculated as:   Q  m(hc  hb ) (8) The heating of water at the heat exchanger and condenser are modelled as: m PH (hd  he )  m W c pw (TWHW  TWout ) (9) m PH (he  ha )  m W c pw (TWout  TWin ) (10) The efficiency () of the CHP system is obtained as:     CHP  (W t  W p ) / Q 5 (11) Numerical simulations Numerical simulations were obtained using the Engineering Equation Solver (EES) software [15] that includes the thermophysical properties of carbon dioxide.

Extractives are used by plants against insects, fungus and bacteria [14]. They range between 3 to 10 wt% of the dry weight of the biomass. Removal and recovery of the extractives is the first unit operation to consider. Liquid-solid extractions are generally used [15]. Extracts are usually a complex mixture of molecules. Isolation and purification of extractives has lured researchers and industrial groups given the potential applications from aroma chemicals to the pharmaceutical potentials. However the purity required in fine chemicals has limited the use of “bulk extractives” as raw material.

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