Naslov
Circulation-enhanced tank heating using shallow profile coil bundles

Autori
Magazinović, Gojko

Izvornik
Journal of Marine Science and Application (1671-9433) 19 (2020); 234-245

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Heating coil ; Tank heating ; Bundle ; Convection ; Large-scale circulation

Sažetak
Heavy fuel oils require heated tanks to facilitate their transportation and processing. This paper proposes and investigates threeand four-level heating coil bundles. Numerical study revealed that powerful large-scale circulation of the heated fluid enhances heat transfer, delivering 16.7% and 23% improvements to the average heat transfer coefficient for the three- and four-level bundles, respectively. Furthermore, this circulation improves oil mixing and limits the variation in bulk oil temperature to − 0.3 to + 1.3 °C from the average. The study also quantified oil flow velocity near the bottom of the tank. The time-averaged horizontal components of velocity, estimated 25 mm and 50 mm above the bottom of the tank, exceed 2 mm/s and 4mm/s, respectively. The proposed heating coil bundles feature a compact design that reduces the material and labor costs of construction and that, by occupying only a small portion of the bottom of the tank, improves accessibility, maintenance, and cleaning.

Izvorni jezik
Engleski

Znanstvena područja
Brodogradnja, Strojarstvo, Temeljne tehničke znanosti

POVEZANOST RADA