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VONDÁL, J. HÁJEK, J.
Original Title
Heat Flux Measurement Methods for Process Furnaces – a Case Study
Type
journal article - other
Language
English
Original Abstract
The distribution of heat loads to heat exchanging surfaces in process furnaces (fired heaters, boilers) is an important factor influencing efficiency of the process as well as lifetime of the unit. This work compares two heat flux measurement methods in a controlled environment of large-scale laboratory combustion facility. The experiment makes use of a low-NOx burner firing natural gas at 745 kW thermal duty. Heat fluxes are measured firstly by a water-cooled Schmidt-Boelter sensor (Hukseflux SBG01), which represents the typical approach applied in industrial practice. Second method is based on segmental design of water- cooled walls of the combustion chamber. The latter method provides total heat flux measurement on the process medium side and has several advantages over the standard method. This paper provides a comparison of heat flux distributions measured by the two methods as well as a quantitative analysis of the strong and weak points of both methods. Researchers and practitioners alike should find this paper helpful in interpretation of measured heat flux data.
Keywords
CFD, Swirl flow, Combustion, Swirler
Authors
VONDÁL, J.; HÁJEK, J.
RIV year
2013
Released
29. 9. 2013
Publisher
AIDIC Servizi S.r.l.
Location
Milano, Italy
ISBN
1974-9791
Periodical
Chemical Engineering Transactions
Year of study
35
Number
1
State
Republic of Italy
Pages from
1153
Pages to
1158
Pages count
6
BibTex
@article{BUT102086, author="Jiří {Vondál} and Jiří {Hájek}", title="Heat Flux Measurement Methods for Process Furnaces – a Case Study", journal="Chemical Engineering Transactions", year="2013", volume="35", number="1", pages="1153--1158", doi="10.3303/CET1335192", issn="1974-9791" }