抄録
The formation of the ice growth in a pipe with water flow was investigated experimentally. The experiments were carried out under various experimental conditions over the ranges of Reynolds numbers (based on pipe i,d., 215-8300) and cooling temperature ratios (1.25-14). From the visual observation of ice formation and meaurements of the pressure drop between the inlet and outlet of a pipe, it was found that the flow condition and cooling temperature ratio played an important role in the formation of ice in the pipe. The transient behavior of ice formation was expressed by the relationship between the pressure loss coefficient and Reynolds number for various cooling temperature ratios. The non-dimensional time from the start of freezing in the pipe to a complete ice blockage was expressed with Reynolds number for various cooling temperature ratios. In addition, the critical condition for a complete ice blockage in the pipe was obtained with experimental correlation equations in terms of cooling temperature ratio and Reynolds number.
