Как выбрать гостиницу для кошек
14 декабря, 2021
This represents the weight of biomass per unit of volume and can be expressed on dry basis and on wet basis, indicating the value of moisture content. Another important parameter is the bulk density that expresses the volumes required for storage. Typical values of the bulk density range from 150-200 kg/m3 for straw and wood chips, to about 600-900kg/m3 for wood. Table 5.1 shows typical values for bulk density of selected biomasses. Together with heating value the bulk density identifies the energy density of biomass, that is the energy available per unit of volume. This information is necessary to design the storage facilities and to evaluate transportation costs. In general the energetic density of biomass is about 1/10 that of fossil fuels.
5.1.3.3 Sulfur content analysis (EN 15289, 2011)
This represents the quantity of inorganic and organic sulfur contained in biomass. The measure is realized eliminating all the organic substances present in the fuel and operating the complete transformation of sulfur compounds in soluble sulfates, through calcination at elevated temperatures in oxidizing and basic environments. The content of sulfur in the fuel is responsible for the presence and quantity of sulfur oxides (and so acid gases of sulfur: sulfuric acid and hydrogen sulfide) in the emissions deriving from energy conversion processes.