Naslov
Modelling study on the effect of ash fusion characteristics on the biomass slagging behavior

Autori
Zhu, Yiming, Tan, Houzhang ; Niu, Yanqing ; Wang, Yibin ; Mikulčić, Hrvoje ; Vujanović, Milan ; Duić, Neven

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Digital Proceedings of 12th Conference on Sustainable Development of Energy, Water and Environment Systems - SDEWES / Ban, Marko et al. - Zagreb : Fakultet strojarstva i brodogradnje Sveučilišta u Zagrebu, 2017

Skup
12th Conference on Sustainable Development of Energy, Water and Environment Systems - SDEWES

Mjesto i datum
Dubrovnik, Hrvatska, 04.10.2017. - 08.10.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Biomass ; combustion ; simulated ash ; ash fusion ; slagging ; CFD modelling

Sažetak
Slagging problem severely impedes the utilization of biomass fuel. Ash fusion characteristics (AFC) of biomass have significant effect on slagging. Due to the complexity of biomass ash composition, simulated ashes have been widely used for AFC investigation. In this study, based on the basic ash composition of biomass , the mixture of SiO2, CaO, K2O and Al2O3 have been selected as simulated ashes for AFC test. Due to the relatively low content of Al, the mass fraction of Al2O3 is set as 0, 3% and 7%. The corresponding characteristic temperatures of adhesion have been acquired by picture processing and used for the ash fusion adhesion modelling. CFD modelling study of deposition on heating surface has been performed, which takes the inertial impaction and ash fusion into consideration. Compared with the actual slagging in some power plants, the modelling results can reflect a similar situation on the surface of tube.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA