Review of how reducing air system pressure influences compressor power

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With current financial and market pressures, energy conservation has become a priority. Compressed air is a recognized energy consumer with great opportunities for energy savings with a quick payback. Reducing air system pressure is a common action to drive energy savings but it is typically not well received by production and the potential savings can be misleading. In an effort to drive results, this savings opportunity is frequently over simplified and the savings potential exaggerated. Greater detail regarding this action is discussed in hopes of clarifying issues and improving calculated returns.

This paper is republished with the permission of the Association of Energy Engineers ( and the sponsors of GlobalCon (

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