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The formation of a continuous ice cover on a body of water.
(mechanical engineering)
Abnormal operation of a refrigerating unit because ice has formed at the expansion device.



the formation of solid ice on the surface of a body or stream of water; the period during which there is a solid layer of ice on a river or body of water. Areas of rapid current or inflow of warm waters—for example, effluent or groundwater—may remain free of ice and are called lanes or polynyas.

The duration of a freeze-up and the thickness of the ice depend on the duration and temperature conditions of the winter, the characteristics of the body of water, the depth of snow cover, and the wind conditions (for example, on bodies of water of the Eastern European Plain, the ice freezing period lasts several days in the southern parts and up to six or seven months in the north; the thickness of the ice varies from 20–30 cm to 1 m or more, respectively). Small rivers and quiet pools freeze more rapidly than large rivers. Mountain streams usually do not freeze over because of the fast current.

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References in periodicals archive ?
Several innovative methods to reduce service line freeze-ups have been developed over the years.
Freeze-ups in piping typically occur in areas that are not adequately heated or insulated, such as in vacant buildings, near drafty windows, or in attics.
However, no other system operates odor-free, without freeze-ups, has a flushing system that provides an astounding 50 pounds of water pressure all while being connected to a porcelain toilet bowl.
Black Box's final chapter, "the Panic or 2008" provides a day-to-day chronology of the events of September-October 2008: stock market swoons, runs on banks, soaring spreads, credit freeze-ups and bankruptcies.
Our basic single-cut design involves an operator/monitor setup for heated pipeline gas following custody metering to prevent pressure-drop freeze-ups by maintaining a 40[degrees]F outlet temperature.
This will aid in shedding water and postponing subsequent freeze-ups, and will help line exit the reel with silky smoothness.
2pro's patented gearless design ensures it will run smoothly and quietly with near-zero freeze-ups.
Oil was used as a coolant, providing more efficient cooling and preventing winter freeze-ups.
Denatured alcohol absorbs water and prevents fuel line freeze-ups.
It helps prevent evaporator freeze-ups, liquid-slugged compressors, low pressure cutouts, and overshoots common with on/off and pressure-switch controls.
Even when running smoothly, they too often come down to who can click the mouse faster Throw in the game's regular freeze-ups and the experience becomes clicking a mouse while watching an indiscernible morass of swords swinging and cannons firing.
Unlike complicated repair and protection programs that are designed for network administrators and computer consultants, Advanced WindowsCare Personal lets users detect bottle-necks, eliminate freeze-ups, and lock out privacy threats and spyware.