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Further Developments of Ultra-Low Noise and Highly Efficient Axial Flow Fan for Industrial ApplicationsDuring the last years there has been a very strong pressure by the market to get cooling systems limiting the noise pollution and the energy consumption. These requirements are today including systems equipped with small size fans (4 to 7), but for this application there is not a product able to satisfy properly both requirements at the same time. When the very low noise is requested in general it is now necessary to give up the high efficiency,

as a result of the development of the Pro-Alcohol Program in Brazil

This year we are starting to build the new laboratory for the cooling tower research

In this regard

The purpose of this Chapter is to list convenient formulas

Technical treatment is different for existing cooling tower and a new building shell

bulk fluid velocities and fluid chemistry typically help to determine the lifetime of wetted surfaces

The solution can be fed directly to the cooling tower and controlled via ORP (Oxidation Reduction Potential)

The following tests are conducted on fill: mechanical strength

vibration fundamentals are briefly elaborated

chemical and physical tests

The tower was upgraded in April '88 during the scheduled plant outage of three weeks

Cooling towers are designed to achieve the specified cooling capacity at the highest ambient wet bulb temperatures for the area in which it will be operated

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