A compressed air auditor regularly flow-tested the compressors under his study. This generally would be done if the air compressor was drawing low amps — a telltale sign that the unit is producing low flow output — or if the compressor has excessive hours. Often times, internal wear due to age will reduce output […]
Why use point-of-use dryers with compressed air systems?
It is common to see the air in a complete plant dried by a desiccant dryer only to service one small end-use that is subject to freezing temperatures. The purge from a large desiccant dryer is much more costly than that of a small point-of-use dryer, which can be placed on the outdoor feed. The […]
Compressed air fail: No log
A compressed air auditor was excited to see logbooks for each of the compressors at a large mineral processing facility. Each book was protected from the environment by a really nice orange plastic case. The auditor was interested to see the compressor history and opened the book, only to discover it was blank — no […]
Compressed air fail: Clutch play
A compressed air auditor recently performed an energy audit at a mineral processing facility. Plant personnel were constantly complaining about production outages due to low pressure. The problem was that when the pressure dips down below 80 psi, the drive clutches on the large ball mills — that grind the processed down minerals to powder […]
Compressed air fail: Condensate disposal
A compressed air auditor found, during a site visit to a mine, that compressed air condensate was left to drain from stopcock at the bottom of piping low spots. The oily condensate pooled on the ground, creating a slippery mess that polluted the environment and caused a safety hazard. This mine had no air dryers […]
Compressed air fail: The bag method
Did you know that garbage bags have a use in the compressed air industry? The use of garbage bags to determine compressed air leakage, is described in the U.S. Department of Energy’s (USDOE) MEASUR tool and is a straightforward and cost-effective method for roughly estimating air leaks in a compressed air system. This technique is […]
Compressed air fail: Pipe and tank corrosion
Corrosion in steel pipes and storage receivers within compressed air systems is a common issue that can significantly impact system efficiency, safety, and longevity. This process is primarily driven by the presence of water and acid condensate, both of which are common byproducts in compressed air environments. Understanding how corrosion occurs can help in implementing […]
Compressed air fail: Dust collectors
Dust collector reverse pulse cleaning is commonly deployed in any industry that creates powdered dust. Through the years, it is common to see expensive failures of these devices that consume excessive amounts of compressed air. Often times, these failures go undetected. Dust collector reverse pulse cleaning is a highly efficient method for removing accumulated dust […]
Compressed air fair: Keep it cool, not cooked
Air-cooled air compressors are crucial to keeping the production process running in many industries; they work by turning power into usable energy. Their performance, however, depends heavily on their ability to stay cool. If dust and debris clog up a compressor, it can overheat, work less efficiently, and cost more to operate. Fig. 1 and […]
Compressed air fail: Happy ending
Tom, a diligent plant engineer at a mid-sized manufacturing facility, faced persistent problems with his compressed air system powering his crucial production lines. Despite repeated attempts to fix various symptoms — frequent drops in pressure, excessive energy consumption, and sporadic equipment failures — the problems persisted, causing costly downtime and frustration on the factory floor. […]