Correct filter design and optimum operating point

摘要

In the case of durable capital equipment, such as large dedusting filter units, the extent of the life cycle costs (LCC) is decisively influenced by the operating expense and consequential costs, as they are considerably higher than the capital cost of the equipment when calculated on the basis of a life expectation of 15 years. Using this cost calculation method, Scheuch has relativized the previous assumption that the energy costs for the fan are the essential factor for the plant owner in the overall framework of a plant's operating expenses. As a result of calculations made on the basis of comprehensive empirical values, it has been found that the sum of the individual operating expense items determines both the correct design of the filter and the optimum operating point of the plant, due to the mutual effect of the plant parameters (Fig. 1).