Application of the Strategy in System Selection

The application of the strategies in system selection can be illustrated by using a simple example. Let us think about an industrial hail with some internal heat sources but without any remarkable internal movement that would disturb the stratification. 

During summer. Fig. S. 6a, there is a need for cooling in the occupied zone (area up to 2 m from the floor level) rhus it is desirable to apply the stratification strategy with vertical temperature and contaminant stratification in the hall in order ro save cooling energy costs. This can be done, for example, by using a low-impulse air supply with the devices at the floor level. 

FIGURE 8.11) Application of tfie strategy in system selection examples. 

It the main reason for the stratification strategy is contaminant control in [he occupied zone, the same strategy should be applied in winter conditions, too. Thus, the selected hearing method has to fulfill two requirements to siip-pttrt the creation of the vertical stratification and not to create disturbing airflows into the hall. In this case one option would be the floor heating method see Fig. 8.16c. Additionally, one should consider the prevention of boundary layer flows along the outer walls using, for example, passive methods. - 

To conclude the example A different air conditioning strategy can and sometimes should be selected for different seasons or operating conditions. The strategy can be changed by using combinations of available method.s. 

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