Generating a representative signal of coal ash content to anticipate combustion control in a thermal power station.
This paper describes the possibilities of continuously measuring coal ash in the boiler feeding circuit of a thermal power station so that the measurement can be used as a signal for the boiler combustion control system. An installation was designed, at semi-industrial scale, that could faithfully reproduce the operation of a belt feeder. In order to measure the ash content, a natural radioactivity meter was installed and a large number of coal samples with different ranks and grain sizes were tested, eventually showing the possibility of achieving the objective.
Prieto-Fernández
Ismael
I
Area de Máquinas y Motores Térmicos, Universidad de Oviedo, Campus Universitario de Viesques s/n, Gijón, Asturias 33203, Spain. ismaelp@correo.uniovi.es
Santurio-Díaz
José M
JM
Folgueras-Díaz
Belén
B
López-Bobo
M Rosario
MR
Fernández-Viar
Pedro
P