Usage of thermosyphon for avoiding of low grade corrosion on the surfaces of air heaters and increasing of thermal efficiency of steam generators PK-38-4

• Autorzy: Iliev I. , Lazarov S.
• Języki publikacji: EN

Abstrakty

EN

The paper presents and analyzes new type air heater, which uses the thermosyphon’s technology, aims to replace the existing horizontal tubular air heater of first-degree for steam generators Nos.5,6,7 and 8 at TPP Maritsa East-2 in Bulgaria. The main advantage of the air heater with heat pipes is the ability to lower the temperature of exhaust gases to levels that are impossible for the conventional tubular air heaters, thus increasing the efficiency of the steam generator. Along with the increased energy efficiency, reductions in CO2, SOx and NOx emissions into the atmosphere are achieved. The preheating of the air, used for air combustion by recirculation relieving the operation and improving the combustion in the steam generator, is also reduced.

Słowa kluczowe

EN

heat pipes; thermosyphon; waste heat recovery; air heater

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN
• Czasopismo: Transactions of the Institute of Fluid-Flow Machinery
• Rocznik: 2014
• Tom: nr 126
• Strony: 211--219
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Iliev I.

• Encon Services Ltd., Sofia 32, Han Krum Str. Fl. 2, 1000 Sofia, Bulgary

autor

Lazarov S.

• Encon Services Ltd., Sofia 32, Han Krum Str. Fl. 2, 1000 Sofia, Bulgary

Bibliografia

• [1] Dobryakov T.S., Migaj V.K., Nazarenko V.S., Nadir I.I., Fedorov I.I. : Air Heaters of Boiler Plants. Energy, Leningrad 1977 (in Russian).
• [2] Commission decision of 21.01.2004 establishing guidelines for the monitoring and reporting of greenhouse gas emissions pursuant to Directive 2003/87/EC of the European Parliament and of the Council.
• [3] Hristov H.: Increasing of efficiency of the steam generator using heat pipes. Energy 3(2002), 22–26. (in Bulgarian).
• [4] Hristov H.: Low grade corrosion and fouling of heating surfaces of steam generators. DSc thesis, Sofia 1978 (in Bulgarian).
• [5] Iliev I.: Meand and methods for waste heat recovery from low-grade gas-steam flows. Academic Publishing Center of Ruse University, Ruse 2013 (in Bulgarian).
• [6] Kropp L.I. Shmigol I.N.: Improving the efficiency of of electrostatic precipitators in capturing Ekibastuz coal ash. Power Stations 6(1977), 37–39 (in Russian).
• [7] Kuznetsov H.B.: Working Processes and Issues of Improvement of Convective Surfaces of Boilers. Moscow 1979 (in Russian).
• [8] Marinov H., Iliev I.: Heat exchanger with heat pipes. Patent office of Republic of Bulgaria: Patent No. 745/31.01.2002 (in Bulgarian).
• [9] Methodology for calculation of balance method for the emission of harmful substances released into atmospheric air. Sofia 2000 (in Bulgarian).
• [10] Thermal Calculation of Boilers (Normative Method). 3rd Edn., St. Petersburg 1998 (in Russian).