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Featured researches published by Dmitri Neshumayev.


Archive | 2009

Thermal Effects by Firing Oil Shale Fuel in CFB Boilers

Dmitri Neshumayev; A. Ots; Teet Parve; T. Pihu; K. Plamus; A. Prikk

It is well known that during firing of oil shale fuel the amount of heat released during its combustion per kg of fuel is significantly affected by the endothermic and exothermic processes taking place in mineral matter. These thermal effects are calcite and dolomite decomposing, marcasite FeS2 oxidising, CaO sulphation and formation of the new minerals. The given paper deals with the experimental study of the influence of these thermal effects of oil shale fuel having different heating value on total amount of heat released during combustion in calorimetric bomb, circulating fluidized bed (CFB) and pulverized-firing boiler (PFB). The large-scale (250 MWth) experiments were performed in the K11-1 CFB boiler of the Balti Power Plant. During experiments low heating value of a fuel varied within the range 8.5–11 MJ/kg. At the end some conclusions were drawn.


Oil Shale | 2011

FIRING ESTONIAN OIL SHALE IN CFB BOILERS - ASH BALANCE AND BEHAVIOUR OF CARBONATE MINERALS

K. Plamus; A. Ots; T. Pihu; Dmitri Neshumayev


Oil Shale | 2013

OIL SHALE PULVERIZED FIRING: BOILER EFFICIENCY, ASH BALANCE AND FLUE GAS COMPOSITION

Alar Konist; Tõnu Pihu; Dmitri Neshumayev; Andres Siirde


Oil Shale | 2011

FIRING ESTONIAN OIL SHALE OF HIGHER QUALITY IN CFB BOILERS - ENVIRONMENTAL AND ECONOMIC IMPACT

K. Plamus; S. Soosaar; A. Ots; Dmitri Neshumayev


Experimental Thermal and Fluid Science | 2004

Experimental investigation of various turbulator inserts in gas-heated channels

Dmitri Neshumayev; Arvo Ots; Jaan Laid; Toomas Tiikma


Oil Shale | 2013

LOW GRADE FUEL - OIL SHALE AND BIOMASS CO-COMBUSTION IN CFB BOILER

Alar Konist; Tõnu Pihu; Dmitri Neshumayev; Indrek Külaots


Oil Shale | 2014

CALCULATION OF THE AMOUNT OF ESTONIAN OIL SHALE PRODUCTS FROM COMBUSTION IN REGULAR AND OXY-FUEL MODE IN A CFB BOILER

Alar Konist; Lauri Loo; Aleksandr Valtsev; Birgit Maaten; Andres Siirde; Dmitri Neshumayev; Tõnu Pihu


Oil Shale | 2012

SHORT-TERM TESTS ON FIRING OIL SHALE FUEL APPLYING LOW-TEMPERATURE VORTEX TECHNOLOGY

T. Pihu; Alar Konist; Dmitri Neshumayev; J. Loosaar; Andres Siirde; Teet Parve; A. Molodtsov


Oil Shale | 2016

MINERAL SEQUESTRATION OF CO2BY CARBONATION OF Ca-RICH OIL SHALE ASH IN NATURAL CONDITIONS

Alar Konist; Birgit Maaten; Lauri Loo; Dmitri Neshumayev; T. Pihu


Applied Energy | 2018

Power plant fuel consumption rate during load cycling

Dmitri Neshumayev; Leo Rummel; Alar Konist; Arvo Ots; Teet Parve

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Alar Konist

Tallinn University of Technology

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Lauri Loo

Tallinn University of Technology

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Tõnu Pihu

Tallinn University of Technology

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Andres Siirde

Tallinn University of Technology

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Birgit Maaten

Tallinn University of Technology

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T. Pihu

Tallinn University of Technology

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K. Plamus

Tallinn University of Technology

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Teet Parve

Tallinn University of Technology

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Arvo Ots

Tallinn University of Technology

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Leo Rummel

Tallinn University of Technology

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