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johnnykatz
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How fast do i need to pump water in a 10" aluminum pipe to prevent freezing? Assume 32*F inlet temp and 0*F ambient . For my conditions, the temps will vary and T ambient easily gets down to -20*F or more.
johnnykatz said:How fast do i need to pump water in a 10" aluminum pipe to prevent freezing? Assume 32*F inlet temp and 0*F ambient . For my conditions, the temps will vary and T ambient easily gets down to -20*F or more.
xts said:Turbulence has no effect at all.
Effect on fast rivers and ocean is only such, that if they mix, they just drop some temperature in the whole volume, which is large enough to keep them liquid, while still rivers freeze on their surfaces, while close to bottom the water remain at +3C or so.
But even dramatically turbulent water (like waterfalls) freeze - you may see that in northern mountain regions.
Its surface temperature is usually about -2C (but it is still a bit above freezing point of salted water), while at some depth it is about +4Cjohnnykatz said:Are you saying that arctic ocean water is warmer than 0C?
xts said:Its surface temperature is usually about -2C (but it is still a bit above freezing point of salted water), while at some depth it is about +4C
The relationship between turbulence and freezing is complex and not yet fully understood. However, it is generally accepted that turbulence can enhance the rate of freezing by increasing the mixing and collision between particles, which promotes nucleation and growth of ice crystals.
The relationship between turbulence and freezing is influenced by various factors such as temperature, humidity, and particle size. Higher turbulence levels, lower temperatures, and higher humidity can all increase the rate of freezing. Additionally, the type and concentration of particles present can also affect the relationship.
Turbulence can affect the formation of ice crystals in several ways. It can increase the collision and mixing between particles, leading to more efficient nucleation and growth of ice crystals. Turbulence can also affect the shape and size of ice crystals, as well as the orientation of their crystal lattice.
Turbulence can prevent freezing under certain conditions. For example, in turbulent environments with high concentrations of supercooled water droplets, the intense mixing and collisions can prevent the droplets from freezing. However, in most cases, turbulence tends to enhance the rate of freezing.
The relationship between turbulence and freezing can have significant impacts on weather patterns. It plays a role in the formation of precipitation, as well as the development and intensity of storms. Turbulence can also affect the formation and distribution of clouds, which can impact temperature and humidity levels in the atmosphere.