Xem 1-7 trên 7 kết quả Biomass properties
  • Biomass Properties and Prediction Tools for Vegetation Wildland-Urban Interface (WUI) Fires 1.1 Overview Wildland fires are natural calamities that bring enormous environmental and economic damage worldwide and some of them cause human death. Achieving effective fire fighting is associated with the possibilities of predicting the characteristics of fire behaviour. Special attention needs to be drawn to meteorological conditions and their effect on fire spread in a bed of vegetation.

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  • Wildland fires are natural calamities that bring enormous environmental and economic damage worldwide and some of them cause human death. Achieving effective fire fighting is associated with the possibilities of predicting the characteristics of fire behaviour. Special attention needs to be drawn to meteorological conditions and their effect on fire spread in a bed of vegetation. On the other hand, studying the effect of forest fires on the environment is of equal significance for building the strategy and specific actions to be undertaken in the fire fighting process.

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  • A dual fluidized beds system essentially comprises of two fluidized bed reactors coupled together with a provision of gas or materials transfer in between. It may be a combination of circulating-circulating or bubbling-circulating or bubbling-bubbling type systems. A noble application is in a gasification process for coal or biomass where nitrogen of air is not allowed to dilute the product gas.

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  • The complex world of polysaccharides is a compilation of the characteristics of a variety of polysaccharides from plants, animals and microorganisms. The diversity of these polysaccharides arises from the structural variations and the monosaccharide content which is under genetic control. The chemical and physical properties have made them useful in many pharmaceutical, food and industrial applications.

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  • As shown in Table 2, the area of agricultural land worldwide is larger than that of forests (FAOSTAT Resources 2009). Furthermore, non-wood fibres usually have high annual biomass yields per hectare which are equal or superior to that of woods (Pierce 1991). Approximately 30% of the forest area is used primarily for the production of wood. An additional 24% of the forest area is designated for multiple uses, which also includes the production of wood in most cases (FAO 2010).

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  • About 95% of the renewable energy sold to consumers through green pricing programs was supplied from projects meeting the generally accepted industry definition of “new.” Renewable energy sold through green pricing programs in 2008 represents an equivalent renewable energy capacity of more than 1,500 MW, with more than 1,400 MW of this represented by “new” renewable energy resources (Table 11).

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  • Some physical qualities include soil density, permeability, porosity, temperature, thermal conductivity and heat capacity. These properties dictate how the biologicalmicro organisms whichfeedontheplantorganicmattersurvive.Forexamplethepenetrationofheat,waterand otheressentialorganicresiduedependsonthedensityofthesoil.Bioenergycropswiththeir extensiveandheavyrootsystemhaveanessentialroletoplayhere. Inadditionto increasing thesoilcarboncontenttheycanimprovesoildensityandporosity....

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