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Abstract:
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Namdinh is a big agricultural province in Red River delta of North Vietnam, where were planted three main agricultural products: rice, com, peanut. By case-study investigation and energy analysis, the report put out detail information on biomass energy of rice straw, rice husk, com straw, corn core, peanut straw and total biomass energy from agricultural wastes in Namdinh province. According to investigation data, yearly the total agricultural wastes in Namdinh province is more than 11 million tons. Most of this agricultural wastes in Namdinh province are not collected and used at current time, it is mean that: Namdinh peasant dissipates a lot of biomass energy every year. In theory, 1 ton of com by-products generates 477 kWh of electricity; 1 ton of peanut by-products generates 450 kWh of electricity; 1 ton of husk by-products generates 460 kWh of electricity; 1 ton of straw by-products generates 447 kWh of electricity. In comparison with coal, using husk and straw as fuels is more economical effectively. The report aslo have proposed and chosen technological method of electricity production from husk and straw. This method is fluidized sand-bed combustion technology. Ash after being burned can be used as additive for industrial production of cement and bulding materials. |