Abstract
The formation of the ice growth that occurs in 180° curved pipes containing water flow was investigated. The experiments were carried out under various experimental conditions in a range of pipe with an inside diameter of d=16.5mm21mm, Reynolds numbers (based on pipe i.d.) Re=2906653, and temperature ratios of the freezing parameter, T*(=Tf-Tw)/(T∞-Tf), Tf=0°C, Tf=cooling pipe temperature, T∞=temperature of flowing water)=1.5211. From visual observations of ice formation and measurements of the pressure drop between the inlet and outlet of a curved pipe, it was understood that the flow condition and temperature ratio T* played an important role in the formation of ice in the curved pipe. The transient behaviors of ice formation, according to time proceeding, were expressed in the relationship between nondimensional friction resistance f and Reynolds number for various temperature ratios T*. Moreover, the critical condition of perfect ice blockage in the curved pipe was obtained with experimental correlation equations in terms of T* and Re.
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