@Article{hmt.18.3,
AUTHOR = {Yun Hao
, Shaohua Lv, Song Wu},
TITLE = {EXPERIMENTAL RESEARCH ON THE HEAT TRANSFER  CHARACTERISTICS OF NANOFLUIDS IN CRUDE OIL HEATING  FURNACES},
JOURNAL = {Frontiers in Heat and Mass Transfer},
VOLUME = {18},
YEAR = {2022},
NUMBER = {1},
PAGES = {1--8},
URL = {http://www.techscience.com/fhmt/v18n1/52434},
ISSN = {2151-8629},
ABSTRACT = {Traditional methods of enhancing the thermal efficiency of heating furnaces in continuously producing oilfields, such as replacing existing units with 
more efficient units or renovating old furnaces, are highly inconvenient. This paper studied on the characteristics of nanofluids, a novel heat transfer 
medium with excellent heat transfer characteristics to enhance the thermal efficiency of heating furnaces. The stable nanofluids (Al<sub>2</sub>O<sub>3</sub>-H<sub>2</sub>O, SiO<sub>2</sub>-
H<sub>2</sub>O, and TiO<sub>2</sub>-H<sub>2</sub>O) were prepared by a two-step method and various chemical and physical treatments were carried out. Thermal conductivities of 
the nanofluids were measured using the transient hot-wire method. Based on the analysis, the most appropriate nanofluid (TiO<sub>2</sub>-H<sub>2</sub>O) was selected to 
carry out the field experiments in an oilfield in Xinjiang, China. And the results show that the TiO<sub>2</sub>-H<sub>2</sub>O nanofluid (0.75%) can increase the thermal 
conductivity by 5.38% compared to pure water. Furthermore, the thermal efficiency of the heating furnace was enhanced by 10.57% and 
fuel consumption of the heating furnace was reduced by 14.8m<sup>3</sup>
/day or 5400m<sup>3</sup>
/year. The interesting findings reveal that nanofluids have the potential 
to improve the efficiency of heating furnaces in the heating, gathering and transportation systems of oilfield.},
DOI = {10.5098/hmt.18.3}
}