期刊
ADVANCES IN ENGINEERING SOFTWARE
卷 86, 期 -, 页码 49-54出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.advengsoft.2015.04.006
关键词
Thick-wall; Pipeline; Crude oil; Wax appearance distance; Experimental design; Computational fluid dynamics
类别
资金
- Graduate School, the Chulalongkorn University
- CU Graduate School
- Thailand Research Fund [IRG5780001/TRG5780205]
- PETROMAT
- PTT Public Company Limited
The aim of this study was to explore the heat transfer behavior between convection and conduction in the thick wall crude oil pipeline with laminar unsteady state flow using integration of developed computational fluid dynamics model and statistical experimental design. The governing equations were employed to investigate the effects of wall thickness, wall thermal conductivity, surrounding heat transfer coefficient and ambient temperature on transport profile using statistical experimental design and to locate an origin point where wax precipitate in the pipeline (wax appearance distance) by using response surface methodology (RSM). A good agreement between the model and literature experimental data suggests that the proposed numerical scheme is suitable for simulating the transport profile in pipeline and predicting the phenomena for any other conditions. From the statistical analysis, it was found that, surrounding heat transfer coefficient and ambient temperature were the major effect parameters on the wax appearance distance. (C) 2015 Elsevier Ltd. All rights reserved.
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