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Anonymous Poster

Heat Exchanger Plugging

08/26/2008 2:12 AM

Hi, can i ask how many percentage of tubes can be plugged or what is that limit numbers of tubes that can be plug in a U heat exchanger... And also what code or reference standard can i find this.. thx

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PWSlack
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#1

Re: Heat Exchanger Plugging

08/26/2008 3:23 AM

If there are N tubes, the maximum number that can be plugged is N-1.

The performance of the exchanger will be affected starting with the 1st tube plug.

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user-deleted-1104
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#4
In reply to #1

Re: Heat Exchanger Plugging

09/02/2008 9:44 AM

Yes, you are in right. Theoretically the maximum number that can be plugged is N-1. But for sure practically is impossible to operate an exchanger plugged N-1 tubes.

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user-deleted-1104
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#2

Re: Heat Exchanger Plugging

08/26/2008 4:04 AM

Hello

From our practice and internal regulations are allowed to be plugged 15% from total tubes. For additional details see API 660. Hope tis help.

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Labyguy
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#3

Re: Heat Exchanger Plugging

08/26/2008 12:07 PM

You don't say what is causing the plug. If the tube is plugged because the water freezes, the answer is one tube. A frozen tube will burst and your start to leak your refrigerant with your water...

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