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Tham khảo tài liệu 'sustainable growth and applications in renewable energy sources part 16', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Tall Wheatgrass Cultivar Szarvasi-1 Elymus elongatus subsp. ponticus cv. Szarvasi-1 as a Potential Energy Crop for Semi-Arid Lands of Eastern EUrope 291 equipped with travelling grates which have a ladder-like structure and consist of more segments. There is another grate so-called crawler grate which was named after its appearance because it resembles a looped ribbon stick. The heat and power plant boiler designs have several solutions. Utilization of the energy grass in coal power-plants was carried out with co-firing which can solve the problem of ash melting. During the combustion of herbaceous fuels higher solid emissions can be measured which mainly deposit in the boiler and exhaust with the flue gas. The efficiency is highly damaged by deposition on the heat transfer surfaces and depending on the composition it can result in corrosive effects in the boiler. In order to prevent this mechanical or pneumatic equipment should be installed with a dust separator which cleans automatically the flue duct. Parallel with this solution it is necessary to reduce the load of solid components of the flue gas the equipment is usually mounted with cyclone which allays larger floating particles from flue gas. Electrostatic filter may also be assessed which significantly reduces the emission of solid component from boilers. Another possible method for the energetic utilization of energy grass is the so-called pyrolytic procedure where the fuel is fumigated in a multistage process in an oxygen-low environment. The resultant grass-gas will be burnt directly or after a cleaning procedure it will be suitable for use in gas engines for electricity production. Because of the high capital costs these technologies are primarily economical in the case of using high-performance equipment. As a conclusion it can be stated that problems concerning the use of the herbaceous fuels - including energy grass - in low-and high-performance boilers directly or with co-firing technique have been
