Pump Audits for improving Energy Efficiency

The need for saving energy meanwhile has been realized everywhere. Economic necessity and political pressure by the EuP Directives have led to the verification of all industrial sectors for energy dissipation and to get it replaced by energy saving solutions. Since pumps are among the major industrial consumers of electricity, here the main activities are concentrated. Pump audits of existing pumping systems have successfully shown spectacular savings of up to 90%. Thus the taken measures do pay for itself quickly. However also negative examples are known where ignorance did lead to misallocation and quite the contrary did occur. For example the simply installation of frequency converters without any analysis of the system conditions does not assure energy savings.

How the potential savings can be increased? European energy-saving projects pursue the product approach. Guided by the EuP Directives the energy efficiency of e.g. water pumps is being stipulated. In the medium term products with poor efficiency will disappear from the market. This is responsible but still not sufficient. Pumps always are part of a complete system. In case that only one component even on energy efficiency perspective is being optimized hardly an overall optimum can be realized. Theoretically at least it may even result in a deterioration. For both the energetic auditing of existing systems as also the design of new systems the system approach has proved at Edur.

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