Перегляд за Автор "Boldyryev, S. A."
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Документ Ammonia Refrigeration Cycle Integration in Buildings Heating System(The Italian Association of Chemical Engineering, 2012) Boldyryev, S. A.; Kapustenko, P. O.; Tovazhnyanskyy, Leonid Leonidovich ; Garev, A. O.; Perevertaylenko, O. Yu.; Khavin, G. L.; Arsenyeva, O. P.; Klemeš, Jiří JaromírThis work investigates the possibility of ammonia low potential heat utilisation with use of Process Integration methodology. The two operation modes are considered. The first one is the use of ammonia gas super-heating and partly ammonia condensation. The low condensation temperature of ammonia is limiting the low potential heat usage. The second option is introduction of ammonia additional compression to increase the temperature of ammonia condensation. The low potential heat consumers are the hot water supply system, air pre-heating system and air heating for the fans.Документ Energy consumption redaction in phosphoric acid production by wet process(Process Engineering Publisher, 2008) Tovazhnyansky, L. L.; Kapustenko, P. A.; Ulyev, L. M.; Boldyryev, S. A.Документ Energy saving and emission reduction at the sugar-plant with take into acount of condensate heat of return steam in process integration(Process Engineering Publisher, 2004) Tovazhnyansky, L. L.; Kapustenko, P. A.; Ulyev, L. M.; Perevertylenko, A. Yu.; Boldyryev, S. A.; Demirskiy, A. S.Документ Heat Integration Improvement for Benzene Hydrocarbons Extraction from Coke-Oven Gas(The Italian Association of Chemical Engineering, 2011) Tovazhnyanskyy, Leonid Leonidovich ; Kapustenko, P. O.; Ulyev, L.; Boldyryev, S. A.In present work the extraction of benzene hydrocarbons from coke-oven gas on the one column unit is studied. Energy consumption of the investigated plant is defined and disadvantages of existing heat exchangers network are shown. The integrated flexible flowsheet is proposed based on process integration method. It enables to reduce both hot and cold utilities consumption on 2,872 kW with pay back period about 9 months.Документ Heat integration improvement for Eastern European countries sugar plant(Process Engineering Publisher, 2002) Tovazhnyansky, L. L.; Kapustenko, P. A.; Ulyev, L. M.; Boldyryev, S. A.Документ Heat integration of ammonia refrigeration cycle into buildings heating systems in buildings(Наука, 2013) Boldyryev, S. A.; Garev, A. O.; Klemeš, J. J.; Tovazhnyansky, L. L.; Kapustenko, P. O.; Perevertaylenko, O. Yu.; Arsenyeva, O. P.The possibility of utilizing the low potential heat of the ammonia refrigeration cycle has been shown. The design of an energy saving heat exchangers network to heat water and air in municipal buildings has been proposed. The possibility of increasing the pressure of ammonia with the purpose of improving the heat recovery in the system and reducing the load of the heating and cooling systems was considered. The minimum temperature difference in the heat exchangers network was selected. The economic efficiency of the retrofit project was estimated.Документ Synthesis of energy saving integrated flowsheet for sodium hypophosphite production(The Italian Association of Chemical Engineering, 2009) Tovazhnyanskyy, Leonid Leonidovich ; Kapustenko, P. O.; Ulyev, L. M.; Boldyryev, S. A.Документ Total Site Integration for Coke Oven Plant(The Italian Association of Chemical Engineering, 2013) Ulyev, L. M.; Kapustenko, P. O.; Vasilyev, M. A.; Boldyryev, S. A.The process of benzene distillation and process of coal tar distillation being typical for East European countries is analyzed in this paper. The pinch analysis method was selected to perform a reconstruction project. According to principles of pinch analysis, new network diagrams are designed and capacity of heatexchange equipment is calculated. The using of "Total Site Profiles" showed the feasibility of heat pump integration. Heat pump integration allowed to reduce the external hot utilities usage on 368 kW and cold utilities usage on 368 kW. This project let to decrease the external hot utilities usage on 23 % and cold utilities usage on 24,13 %, and also offered the way of step-by-step retrofit of the plant.