VMAC recently received a message from a process engineer in London who had a great question after reading our How to Work Out ‘Time To Fill’ Type Questions Using Simple Logic article. The process engineer asked: “I was wondering if you have a similar calculation that you could share for “How to Calculate the Depressurization […]
Heaterless Type (Pressure Swing Dryers) Dual tower desiccant air dryers are used to produce dewpoint temperatures below the freezing point of water, as well as reduce the moisture content of compressed air used in critical process applications. Typical dewpoints produced by these types of dryers are -40° F to -100° F, although lower dewpoints are […]
Small CFM gas driven air compressors won’t perform as well at 5,000 feet of elevation as they do at sea level. They may fail, bog down, or supply less air power. But why is this? It all comes down to the physics of gas combustion engines.
The air compressor industry is full of acronyms for measuring airflow or consumption. Two common measurements are ACFM and SCFM. ACFM (Actual Cubic Feet per Minute) may have different definitions depending on the industry. VMAC defines ACFM as the true air mass flow given a certain set of real life conditions. A pneumatic tool may […]
As mentioned in previous articles, when compressing air, liquid is also brought into the air stream. When cooling, that liquid condenses and is delivered with the compressed air to your tool or application. There are a number of ways of removing or reducing the amount of liquid in the air stream. These include: Storage Tank […]
If you’ve determined what size of compressor you need and the engine requirements to power that compressor the next important step is to ensure that the combination is going to operate optimally in your working environment. In the case of mobile compressors this may include high altitudes, dirty environments and large ambient air temperature fluctuations. […]
It is important to consider where your compressor air intake is located. Some factors to consider are: particulates in the air (dust which can plug filters), ingestion potential (can the intake become plugged with snow or mud) and the temperature of the air when it enters the compressor. If you are mounting an air compressor […]
Say you have an air tank or some other suitably pressure rated vessel and you want to figure out how long it will take to bring the pressure up to a certain level using a compressor of known capacity (CFM) and you want to do it using common sense, not a lot of formulas.
Anyone who has had to use a compressor at a high altitude knows how frustrating it can be. Compressor performance is degraded and it can take a lot longer to complete tasks. People who move to or work in areas that are at a higher altitude are often surprised when their compressor seems to be […]