Industrial Utility Efficiency    


For an organization to prove that it meets the standard it has to undergo a management system audit, either internal or external. The question, therefore, is how can those utilizing compressed air effectively evaluate their assets’ performance as part of an ISO 50001 energy management system and, in doing so, grow their bottom line and minimize their negative environmental footprint.


Many astute air compressor users have noticed the Compressed Air and Gas Institute (CAGI) air compressor data sheets, dated after June 2020, have a new term listed; isentropic efficiency. Isentropic Efficiency will be the new standard of reference for a true comparison of the overall efficiency of air compressors at any rated discharge pressure. Now users can see which company produces the most efficient product with an easy reference percentage number. The compressed air industry, in conjunction with CAGI, has been trying to make fair comparisons between air compressors for years. 

NFPA 99 Medical Air

Compressed air and gases are vital to numerous healthcare facility operations. Commonly used for breathing, sedation, and the operation of medical instruments, healthcare facilities must rely on these utilities for lifesaving and therapeutic benefits. The quality of the air and gas produced by the facility’s compressed air systems is paramount to their efficacy in promoting positive outcomes for patients.

Energy Management

ANSI /ISA–7.0.0–1996 is the globally-recognized quality standard for instrument air as defined by the Instrument Society of America. In this article, we’ll go through the Standard’s four elements of instrument air quality for use in pneumatic instruments.

Food Grade Air

Micro-aerosolized droplets are how many members of the microbial world become cross-contaminants via the air mode of transmission.  Food borne viral pathogen Hepatitis A and the ubiquitous Norwalk are very often transported via micro- aerosols. It is well known that many viral or bacterial pathogens or spoilers are transmitted via respiratory bursts [coughs/ sneezes] from people or air handling system, condensate, and splash back from floors. Strict cGMPs  can limit  and control transmission in terms of personal & environmental  hygiene.
In this article we will discuss how to achieve actual oil-free air from your air compressor, no matter what type of air compressor it is. Air compressors of all designs turn mechanical power into pneumatic power by successively concentrating air across compression stages. A rotary screw air compressor, for example, utilizes rotating helical screws to drive air forward, increasing its pressure by reducing the volume of space the air mass takes up. Mechanical compression of this nature takes quite the force and energy to accomplish, which equates to heat generation and physical wear inside of the compressor. 
According to the United States Department of Agriculture, more than 30,000 food and beverage processing plants across the United States employ more than 1.5 million workers.1 Each of those plants applies a wide range of processes to raw agricultural goods to produce consumable food and beverage products.
In modern and industrial work settings, people spend more than 90% of their time in enclosed spaces, such as warehouses, office buildings and factories. In most indoor environments, the air contains a variety of chemical and microbial particles, commonly defined as indoor pollutants, which can severely affect human health and product quality (1). Industries like food and beverage, medical devices and pharmaceutical manufacturers rely on their scheduled compliance testing to confirm the presence or absence of issues in workflow pipelines that are detrimental to the daily output and safety of the product.
An Energy Management System (EnMS) according to ISO 50001:2018 provides companies with a strategic tool to help manage the performance of energy-consuming equipment, including compressed air systems. Improved performance of a compressed air system, in turn, can go a long way toward lowering energy costs and improving system uptime, both of which provide the ability to reduce the company’s carbon footprint. Here’s a look at the standard and important considerations involved in the implementation of an EnMS for a compressed air system according to ISO 50001.
Gaseous nitrogen is used in a variety of systems and processes in the food manufacturing and packaging industries. Often regarded as the industry standard for non-chemical preservation, nitrogen is an inexpensive, readily available option. Suited for a variety of uses, Nitrogen needs to be monitored for purity and potential contaminants. Depending on the type of use, the distribution channel, and the required purity levels, different testing plans should be implemented to ensure safety.
Compressed Air Best Practices® interviewed Norman Davis, Jr., President of ENMET, LLC. Our products include medical verification instrumentation, compressed airline monitors, and single- and multi-gas detectors along with ambient air oxygen monitors. Many of these systems are designed to ensure compliance with NFPA 99 (National Fire Protection Agency) Medical Air Systems Guidelines and OSHA monitoring requirements for Grade D breathing air.
This article will focus on ISO8573-7 normative test methods and analysis for viable microbiological contaminants and how it can be fundamentally utilized in compressed air microbial monitoring plans. The quality of the compressed air must be monitored periodically to fulfill national and international standards. ISO 8573 is an available standard addressing compressed air quality. It consists of nine parts that address purity classes, specifications, and procedures. ISO 8573-7:2003, can be utilized across all industries’ compressed air microbial monitoring plans. It contains both informative and normative procedures but lacks any tested compressed air microbial specifications regarding colony enumeration limits for microbial plate counts.
Compressed air contains contaminants such as dirt, water and oil which must be removed before use. ISO8573.1 specifies air quality classes for these contaminants. Humidity is expressed in terms of Pressure Dew Point (PDP). PDP is the temperature at which air is fully saturated with moisture, when the air temperature falls below this point further condensation will occur.
Compressed air is used in more than 70 percent of all manufacturing activities including supplying breathing air to personnel using supplied air respirators. Hazardous breathing conditions exist in many routine industrial operations, such as chemical manufacturing, hospitals, abrasive blasting, paint spraying, industrial cleaning, and arc welding. In these and other operations that introduce contaminants into the workplace, supplied-air respirators, air filtration systems and carbon monoxide monitors are frequently used for worker protection.
After almost three and a half years of development work the Canadian Standards Association C837-16 document “Monitoring and Energy Performance of Compressed Air Systems” has finally been published and is available for download.  The work in writing the document was done by a CSA Technical Subcommittee made up of personnel from power utilities and government organizations, compressed air manufacturers and end users from both USA and Canada, with the committee activities facilitated and coordinated by the CSA Group (see list of committee members).