Industrial Utility Efficiency    

Magazine

September 2016 Edition

September 2016 Edition

Featured Articles

Utility Energy Efficiency Program Viewpoint - Calculating Project Savings: Vortex Vacuum Generators and Outside Air Intake

The intent of this article is to provide readers with simple examples of calculations one can perform to evaluate two sample energy efficiency projects for compressed air systems; pressure sensing vortex vacuum generators and outside air intake (for air compressors).

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Managing Pressure Regulator Artificial Demand, Part 2

This article defines different aspects of regulator design and how they affect air wasted by droop. Some ways to reduce droop have be shown and some special case situations discussed. By taking care with regulator selection and installation, regulators can save large amounts of air instead of wasting it.

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CAGI Discussion: Motor Controls in Centrifugal Air Compressors

Compressed air is a critical utility widely used throughout the food industry. Being aware of the composition of compressed air used in your plant is key to avoiding product contamination. Your task is to assess the activities and operations that can harm a product, the extent to which a product can be harmed, and how likely it is that product harm will occur. Assessing product contamination is a multi-step process in which you must identify the important risks, prioritize them for management, and take reasonable steps to remove or reduce the chance of harm to the product, and, in particular, serious harm to the consumer.

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Compressed Air System Costs Meet the Real World

There is an often-quoted ratio of 7.5 hp input to one horsepower output used to illustrate the inefficiency of the energy transfer in compressed air systems.  What this is saying is that you receive the benefit of only 13 percent of the energy you put into your air compressors as mechanical output at the shaft of a typical compressed air powered tool. While this ratio is generally true for compressed air system awareness discussion purposes, you should understand that in the real world compressed air efficiency is usually much lower.

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Four Principles for Sustaining Energy Savings

When Compressed Air Consultants was starting, in 2003, we were approached by a company experiencing significant problems with their compressed air system.  They had compressed air pressure problems causing production interruptions.  They had moisture issues causing all kinds of havoc throughout the facility and appeared to be using far too many air compressors for what they wanted to accomplish.

Read the full article here.

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