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APOSTILA CALDEIRARIA SENAI PDF

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Check valves should be installed after the steam. Carbonic acid deterioration in the condensate drainage system. Air flow differences entering the steam coils.

Temperature control problems 2. Martins, Damasceno, Awada – Pronto-socorro Pronto-socorro: Three steam heated coils; the steam coils are separate units, or three separate parts of one air heating system.

Caldeiarria fouling factors on the outside of the heat transfer. This action will cause temperature fluctuation, water hammer and may cause freezing in colder climates. Restriction of flow to the individual heat transfer unit, caused by internal restrictions, such as steam header pipe, tube diameter, or number of tubes.

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Boas práticas instalação de purgadores

Premature component failures a. The steam trap, sensing steam, will go into the closed position. Latent energy release and phase change which causes a reduction of occupied area.

Each steam coil will have a different steam pressure drop from the steam inlet to the condensate outlet.

The condensate, having only sensible energy, will reduce the steam coil performance and in some cases cause water hammer. Process Applications – Group Steam Trapping Practices Similar steam units unit heaters, tracers, steam coils, heat exchangers, etc.

COM allowed to drain. Install one stream trap for each steam heat transfer 2. When steam condenses in the condensate drainage line the steam blanketing affect is released and condensate from all coils will be.

In colder weather conditions, the steam coils can freeze and fail.

One of the most important rules for steam trap 3. Install a visual indication of steam trap perfor- 6.

Boas práticas instalação de purgadores

There are a few cases where grouping steam components to one steam trap is acceptable, but there are very few process applications where group steam trapping is acceptable. The steam coils discharge condensate into a common condensate header pipe with one common steam trap for all three steam coils. Locate the steam trap below the lowest 8.

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The pressure drop results from:. Steam in the discharge line from the steam coil with the lowest pressure drop will prevent proper condensate drainage, due to the steam pressure in the condensate drainage system. Typical problems with group steam trapping: Freezing in cooler climates 5.

The steam coil with the lowest pressure drop will allow steam to flow freely to the steam trap. Assume that each steam coil is supplied with steam at the same pressure and that all the steam coils are the same size.