This cooling tower made of stainless steel can process up to 380 GPM when in good condition. But its capacity is considerably reduced and its thermal efficiency greatly affected when clogged with residues. In this specific case the residues were made of calcareous deposits (85%) and vegetable oil (15%) (Picture 1).

This particular cleaning work was done by using the Gotar-D product only. After dismantling the tower, the modules were submerged in basins for 2 hours and rinsed with clean water. This work can also be done in situ by circulating the product with a pump. (Picture 2)

The modules are now perfectly clean and the tower has regained its original efficiency. (Picture 3)

It is apparent that the honeycomb modules have been returned to their original state.

1- Before cleaning		2- After Cleaning
3- After Cleaning (close view)

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Following a few trade missions in the Dominican Republic, Gotar's vice-president, Mr Émile Arseneault, had acquired the conviction that his product could be of great interest in this country. Surrounded by the sea, its industry is often struggling with salt induced corrosion problems as well as calcareous and mineral deposits problems.

One demonstration performed at the facility of the biggest steal maker of the island was enough to convince them to let Gotar clean a last generation plate heat exchanger. METALDOM produces its own energy with four diesel engines running on heavy oil that produce up to 46 megawatts. Following its usual procedure, Gotar has cleaned the side of the plates that had been oxidized by sea water.

The production chief engineer, Mr Gerrit Heinen, confirmed us that sizeable gains were obtained by the adoption of Gotar's products in their normal maintenance operations. These gains are not only important at the economical level, but also in terms of the workers health and security at work (they do not have to use toxic and non-biodegradable products anymore to clean the equipment), environmental protection and the preservation of the integrity and longevity of the equipment.

This plate heat exchanger has a dimension of about 3' by 7' and is cooled with seawater on one side. After only a few months of use, the salinity of the seawater has oxidized the plates made of stainless steel. By circulating it in close circuit, the Gotar-D can easily and thoroughly clean this costly equipment in about 6 hours. One big advantage of the product is that it is not necessary to dismantle the equipment to clean it.

 

Before cleaning		After cleaning

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