Heat Transfer Characteristics of Superheater in the Kraft Recovery Boiler

Autor:	Dees Charlie, Tran Honghi, Shen Xinhang, Masahiro Kawaji, Shuji Esaki
Rok vydání:	1997
Předmět:	Flue gas Materials science Fouling Thermocouple Mechanical Engineering Nuclear engineering Heat transfer Fluent Recovery boiler Condensed Matter Physics Superheater Kraft paper
Zdroj:	TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B. 63:993-999
ISSN:	1884-8346 0387-5016
Popis:	Accurate prediction of tube surface temperature is important for determining whether accelerated superheater corrosion will occur in kraft recovery boilers. A heat transfer model, which combines an iterative numerical solution scheme with a more realistic flue gas flow field obtained from the CFD code FLUENT, has been developed to predict the tube, steam and flue gas temperatures in the superheater region. Results of tests performed for a recovery boiler show that temperatures predicted using the model are in good agreement with actual temperatures measured using thermocouples. The presence of a large flue gas recirculation zone above the bullnose is shown to have an adverse effect on the heat transfer in the superheater region.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8ecf42378a207a4ca394e189d1706c4f https://doi.org/10.1299/kikaib.63.993 Zobrazit plný text záznamu