Studying the possibility of separate and joint combustion of Estonian shales and oil shale retort gas at thermal power plants

Roslyakov, P. V.; Attikas, Raivo; Zaichenko, M. N.; Pleshanov, K. A.; Ionkin, I. L.

doi:10.1134/s0040601515100080

Cited by 10 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This design has one downcomer 121 × 8 mm and two risers 108 × 7 mm. Using only one downcomer contradicts with the recommendations [1], although it has often been used in practice in boilers with superheated steam pressure of 100-140 bar [12]. The resulting metal content of the circulation system that consists of simple circuits totaled 11.5 t. With η wall = 0.5 the inverting stability coefficient of the worst tube S i /S amounted to 1.11.…”

Section: Calculation Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Design of a natural circulation circuit for 85 MW steam boiler

et al. 2017

View full text Add to dashboard Cite

The paper describes research and design of fluidized bed steam boiler natural circulation circuit. The capacity of the drum boiler is 85 MW, superheated steam pressure is 98 bar. There are two variants research results of the designed circulation circuit. The first circulation circuit variant was designed as a complex circuit with a common downcomers and risers for the boiler evaporating screen. In the second variant the flow is separately supplied to and discharged from the evaporator that is divided into independent sections. We have researched and described the influence of heat absorption inequality on the furnace evaporation pads using the Boiler Designer software. We also have calculated main characteristics of the two-phase flow in the evaporation pads and evaluated reliability of the natural circulation. The circulation circuit is optimized from point of view of reliability and metal expenses. Results demonstrate that the specific quantity of metal of complex and simple circuit variants is approximately the same with equal reliability.

show abstract

Section: Calculation Resultsmentioning

confidence: 99%

“…Simple circuits with independent flow discharge and supply, fig. 2(b), with separate furnace evaporation pads are more often used in Russia [6,12]. Complex circuit is easier in terms of structural design compared to the simple circuit.…”

Section: Introductionmentioning

confidence: 99%