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Current projects
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Integration of cogeneration technologies. Today in different branches of industry, where in order to produce the main product The essence of these technologies is combined generation of electric power, heat power and/or cold. Such processes are realized by means of adding (superstructuring) heat engine, rotating heat generator, to the existing heat-generators (boilers, furnaces, drying machines). The Institute of technical thermal physics of National Academy of Sciences of Ukraine jointly with "Rassvet" Company developed the new way of cogeneration schemes. The essence is the fact, that cogeneration is based on heat-engineering processes, which don't require any improvement themselves. For example, in the system of heat supply utilities the hot-water boiler performance factor reaches 90-92 percent.The basic regulations and approaches are given in "Project of development of private energy sector of Ukraine on the basis of cogeneration energy saving technologies". Today the cogeneration unit in "Yuzhnaya" boiler-house of "Rassvet" Company is at the final stage of construction. Three hot-water KVG-6,5 boilers are established at it. During the process of development of this project they proceeded from condition of conservation of fuel consumption by boiler-house. According to process flowsheet ]of the unit the exhaust gases from gas-turbine electric generator PAES-2500 with the capacity 2,5 ÌW are directed to the passive boiler-utilizer, consisting of two sections of hot-water boiler PTVM-30. In this boiler the exhaust gases reduce their temperature from 375 to 120îÑ, providing thereby the heat capacity of 5,38 ÌW. Then one third of exhaust gases consumption enters simultaneously to three KVG-6,5 boilers, in the furnace of which nature gas is burnt. Heat rate of each aggregate is 4,16 ÌW with boilers efficiency factor 85 percent. The rest of GTU exhaust gases is directed to the chimney flue. Thus the heat rate of boiler-house after modernization will comprise 19,3 ÌW. Due to the lowest in energy capital investments ($300-600 for the fixed 1 kW of electric capacity), quick putting equipment into operation and short terms of payback the wide integration of non-clear for the first sight but in fact highly efficient combined generation in thermal energy, heat supply, gas transportation and other branches will make it possible to solve vital energy problems, to reduce the net cost of the main product, to provide energy independence of the company and probably to enter the energy market as electric energy supplier. |
there are used heat-engineering processes with nature gas burning, the costs for energy carriers can be fundamentally reduced by means of integration of cogeneration technologies.