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0 Introduction. 1.1The commercial environment of the 1990 s demands that optimum utilisation ofcapital plant is made.Fans are no exception to this rule being one of the most common complete machines supplied to industry.The basis of fan selection is a combination of many user defined factors.A typical cross section of these requirements are Prime cost, Fan efficiency and energy costs, Noise, Space limitations, Availability.Serviceability and Fan type.
PJ HUNNABALL (Wed,) studied this question.
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