Industrial Utility Efficiency

Air Treatment/N2

Facility Evaluates Air Compressors to Increase Nitrogen Purity with Nitrogen Generators

By Hank Van Ormer, Technical Director, APenergy

Over the last two decades, there has been a significant increase of manufacturing facilities deciding to produce their own nitrogen on-site, using compressed air systems and nitrogen generators. They are choosing on-site nitrogen generation, instead of purchasing and receiving deliveries of nitrogen by the cylinder or having a “Nitrogen Over the Fence” supplier.  

Read Full Story

Four Compressed Air Demand Reduction Projects

By Don Van Ormer, Senior Auditor, APenergy

A large food manufacturing operation in the U.S. Midwest spends $529,000 annually on energy to operate the compressed air system.  The plant currently has two supply-side systems that operate and feed two different distribution networks at two different pressures. One compressed air system is at 115 psig (medium pressure system) and the low-pressure system is at 30 psig. The compressed air equipment for both systems is located in four areas throughout the facility.  
[ Read Full Story ]

Defining the Purity of Facility Generated Nitrogen Gas

By the Compressed Air & Gas Institute

While oxygen is unquestionably the most important gas in our atmosphere, as it is essential for most animals and human life, nitrogen is the most widely used atmospheric gas.  Nitrogen is the go-to gas for countless industrial, medical, and scientific applications. This is because nitrogen is in vast supply, inert, and possesses the desirable characteristics of being colorless, odorless, and tasteless. The purity of nitrogen significantly affects the outcome of the application for which it is used and how the industry measures the purity of nitrogen gas is the focus of this article.       
[ Read Full Story ]

Boost Performance with On-Site Oxygen and Nitrogen Generation

By Jatinder Tiwana, CEO, Specialty Gas Canada

The impact of compressed air on industries globally is undeniable, spanning from small tire shops to vast oil and gas sectors, as well as specialized domains like laboratories and pharmaceuticals. Amid this industrial transformation, many have taken control by employing in-house air compressors, air dryers, and related equipment to autonomously generate compressed air. In-house compressed air generation eliminates the need for relying on external sources, whether through cylinder bulk packs, Dewars, or tankers delivering compressed air.
[ Read Full Story ]

On-Premises Nitrogen Generation Addresses Carbon Dioxide Supply Concerns for Breweries

By Garrett Rinker, Senior Project Engineer, South-Tek Systems

The initial cost of a nitrogen generation system may be greater than high-pressure cylinders and liquid nitrogen containers, but most companies will reach a return on investment within 12-18 months with proper sizing of the system based on process demands. Breweries typically experience savings associated with gases of 50-75% by switching to on-premises nitrogen generation. If a regular maintenance schedule is followed, PSA nitrogen generation systems can have a life expectancy of 15-20 years. 
[ Read Full Story ]

Metal Fabricator Measures Nitrogen Use, Receives a Surprise

By Ron Marshall, Marshall Compressed Air Consulting

Nitrogen is used in many facilities for a variety of purposes. The most common source of N2 is through the use of bulk liquid storage. A plant owner was recently surprised to learn that a large portion of his N2 was disappearing, without ever being used by his production process. This article discusses where it went and what we could do about it.
[ Read Full Story ]

Air Compressor Inlet Issues with Airborne Contaminants

By Hank van Ormer and Don van Ormer, Air Power USA

Just as many ambient air issues with regard to the actual equipment operating environment are created by personnel and can be corrected by personnel, inlet air contamination is always created by humans and there is almost always a correction that will either eliminate the issue or mitigate the effect.
[ Read Full Story ]

Pure Gas Testing-The Benefits of Point of Use Sampling

By Jenny Irvin, Trace Analytics

Regular testing of pure gases helps to ensure the safety of consumers and of end products. Whether the pure gas is used directly for medical patients, or in the manufacturing of food, beverages, or pharmaceutical products, quality is of the highest importance. Inadequate levels of purity or unsafe contamination can be detrimental to the products or consumers.
[ Read Full Story ]

Compressed Air Dryer Key Performance Indicators

By Chris Beals, President, Air System Management

The purpose of this article is to point out the key performance indicators (KPI’s) that can assist in maintaining the performance and troubleshooting of compressed air dryers. The most important KPI to monitor is the pressure dew point (PDP) of the compressed air exiting the dryer(s). The PDP of the compressed air should be monitored at the discharge of each dryer and downstream of where the compressed air from multiple dryers converges. 
[ Read Full Story ]

Nitrogen Characteristics and Benefits of On-Site Generation

By the Compressed Air & Gas Institute

Modified Atmosphere Packaging (MAP) accounts for a significant amount of nitrogen usage in the food and beverage industry. MAP involves injecting nitrogen into beverage or food packaging to purge and displace any oxygen-containing air with nitrogen. Oxidation of lipids in food products causes rancidity. Since oxygen is replaced with dry, inert nitrogen in MAP packaging, no product oxidation will occur. The result is maximized product shelf life. 
[ Read Full Story ]

Achieving “Technically Oil-Free” Compressed Air

By David Swartz, Gulf Coast Regional Sales Manager, Sauer Compressors USA

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. 
[ Read Full Story ]