Fan economics

Economic optimisation, both for new and existing fan ventilation systems is discussed in this Chapter. Emphasis is given to the need for considering the complete ventilation system, including the secondary costs of carrying out such an optimisation. Usually it is the ducting system cost and the energy cost which are the two most important factors in fan system life cycle costs. Energy consumption is greatly dependent on the flow variation required and upon the choice and methods of control and regulation.

Economic assessment criteria of various types are used to determine the viability of alternative ventilation system proposals. When calculating the profitability of an investment, it is important to consider the rate of increase of energy costs when compared with general inflation, together with the returns on the investment which can be achieved by introducing energy conservation improvements.

Posted in Fans Ventilation A Practical Guide

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