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## Main Question or Discussion Point

Hi

I am curious to know if anyone can provide a formula/answer to the affect of a thin layer of ice may have on heat loss in water flowing in a pipe.

Example.

I have a smooth plastic pipe approx 20mm diameter, 5m length. 400ml of water travels down the pipe, approximately 0.5m/s. in -10C external temperature (assuming no wind chill), the temperature of liquid drops from a start temp of 30C to an exit temp of 20C.

But by how much would a thin layer of ice inside the length of the pipe say 2mm have on the exit temp of the water? Is there a calculation I can use to work out by how much the temperature will reduce?

Thanks in advance for any assistance.

Sam...wise

I am curious to know if anyone can provide a formula/answer to the affect of a thin layer of ice may have on heat loss in water flowing in a pipe.

Example.

I have a smooth plastic pipe approx 20mm diameter, 5m length. 400ml of water travels down the pipe, approximately 0.5m/s. in -10C external temperature (assuming no wind chill), the temperature of liquid drops from a start temp of 30C to an exit temp of 20C.

But by how much would a thin layer of ice inside the length of the pipe say 2mm have on the exit temp of the water? Is there a calculation I can use to work out by how much the temperature will reduce?

Thanks in advance for any assistance.

Sam...wise

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