Every Compressed Air System Is Designed Twice

Once on paper, and once over the following fifteen years as the plant works around whatever the drawing got wrong.

Undersized piping becomes a pressure complaint nobody ever traces to its source. A compressor sized to a nameplate rather than a demand profile runs at part load for its entire service life. Insufficient storage causes short-cycling that shortens equipment life and wastes energy every hour. Air quality specified for the wrong class either contaminates product or spends money treating air that never needed it.

None of these are expensive to prevent. All of them are expensive to live with.

Atlantic Compressors provides compressed air system design, equipment specification, and layout engineering for new construction, plant expansions, process changes, and facility relocations across Central and Southwest Virginia and Southern West Virginia.

When Engineering Assistance Is the Right Starting Point

New construction. A greenfield facility where the compressed air system is being specified from nothing.

Plant expansion. Adding production capacity that the existing air system was never sized to support.

Process changes. New equipment with different flow, pressure, or air quality requirements than anything currently in the plant — a laser cutter, a packaging line, an instrument air requirement.

Facility relocation. Moving equipment into a building whose electrical service, ventilation, and layout were designed for something else.

Redundancy planning. Operations that have grown to the point where a single compressor failure stops production, and need a configuration that tolerates it.

Air quality upgrades. Facilities moving into food, pharmaceutical, medical, or electronics work where the existing air is no longer acceptable.

What We Engineer

System sizing. Total capacity based on a real demand profile — peak, average, and the shape of the variation between them — rather than adding up nameplate ratings and hoping.
Compressor selection and configuration. Fixed speed, variable speed, or a combination. A single machine or a base-plus-trim arrangement. The right answer depends on how your demand actually behaves, and the arrangement that suits a steady three-shift operation is wrong for a plant with sharp intermittent peaks.
Air quality specification. Matching treatment to the application against ISO 8573-1 classes for particulate, water, and oil. Over-specification is a permanent operating expense; under-specification is a product risk.
Treatment and drying design. Dryer type and pressure dew point, filtration staging, condensate management, and where each belongs in the layout.
Distribution and piping design. Line sizing to hold pressure drop within budget, loop versus branch layout, material selection, drop placement, and provision for the connections the plant will need in five years but has not asked for yet.
Storage sizing and placement. Receiver capacity sized to the demand events the plant actually produces, and located where it can respond to them.
Control strategy. How multiple compressors sequence, what pressure band the system holds, and how it avoids the common failure of several machines running partially loaded against one another.
Ventilation and heat management. Nearly all the electrical energy fed into a compressor leaves as heat. A compressor room that cannot reject it will run hot, trip on high temperature, and shorten equipment life — most often in the first hot summer after installation.
Heat recovery. That same rejected heat can frequently be captured for space heating or process use, and it is far easier to design in than to retrofit.
Future capacity. Leaving room — electrical, physical, and in the piping — for the expansion that will eventually happen.

How the Engagement Works

1. Requirements gathering. We start with what the plant needs to do, not what equipment you were considering. Applications, duty cycles, pressure and quality requirements, growth expectations, and constraints.

2. Load development. For an existing facility, measured data from your current system. For new construction, a demand model built from the equipment list and production plan.

3. Concept design. System configuration, equipment selection, treatment strategy, and layout — usually with alternatives, because the lowest capital cost and the lowest operating cost rarely point at the same design.

4. Specification and documentation. Equipment specifications, piping layout, and the technical detail your contractors and installers need to build it correctly.

5. Coordination. We work with your mechanical contractor, electrical contractor, general contractor, and internal engineering staff through construction.

6. Commissioning and handoff. Verifying the installed system performs as designed, and making sure the people who will operate it understand it.

The Design Decisions That Cost the Most to Get Wrong

Sizing to peak demand instead of designing for it. A plant with a brief, sharp demand spike does not need a compressor large enough to cover it. It needs storage. Buying capacity to serve an event that lasts seconds means paying for that capacity every hour of the year.
Undersized distribution piping. Pipe is the cheapest component in the system at installation and the most expensive to correct afterward. Distribution pressure loss should stay within a small fraction of discharge pressure; systems that exceed it get diagnosed as compressor problems for years.
Insufficient storage. Receiver capacity governs how well controls can operate and how much the compressor cycles. Storage is inexpensive, and shortage of it is one of the most common findings in existing systems.
No control strategy for multiple machines. Two or three compressors installed without sequencing will fight each other and consume far more energy than the same equipment properly controlled.
Ignoring the compressor room. Ventilation, ambient temperature, intake air quality, drainage, noise, and service access all determine whether the equipment achieves its rated life. This is the most frequently overlooked part of a compressed air design.
Designing for today's plant. Facilities grow. Systems that left no headroom get rebuilt at far greater expense than the marginal cost of designing headroom in.

Independent Specification, Not a Product Recommendation

Bill Rimer, President of Atlantic Compressors, is a Department of Energy Qualified AirMaster+ Specialist and a CAGI Certified Specialist — one of a small number of professionals holding both credentials in Southwest Virginia. Our team maintains continuing education through the Compressed Air & Gas Institute and the Compressed Air Challenge.

We represent a broad range of manufacturers rather than a single line, which means specification decisions are driven by the application instead of by what we happen to carry. When the right answer is a smaller compressor, better storage, and fixing the piping, that is the recommendation you will get.

Engineering Assistance and Audits Are Different Services

Engineering assistance designs a system that does not exist yet, or a substantial change to one that does. It answers the question: what should we build, and how should it be specified?

A compressed air audit measures a system already in operation. It answers a different question: what is this system doing, and what should we do about it?

The two connect frequently. When a plant is expanding, an audit of the existing system often supplies the demand data the new design depends on. But if you are diagnosing a system that is already running rather than planning one that is not, start with an audit.

Who We Work With

Facility and plant engineers, maintenance managers, general contractors, mechanical and electrical contractors, architects, and owners — from single-compressor installations to multi-machine plant rooms.

Frequently Asked Questions

Do I have to buy the equipment from you?

No. We provide engineering and specification services, and we are glad to supply and install the equipment if that makes sense for you. The design work stands on its own.

Can you work with our existing contractor or engineering firm?

Yes. We routinely coordinate with mechanical contractors, general contractors, and in-house engineering staff, and we can provide specifications for others to build from.

We are adding equipment to an existing plant. Is that engineering assistance or an audit?

Usually both. An audit establishes what the current system delivers and what headroom exists; the engineering work determines what the expansion requires. Start with the audit if the existing system is already causing problems.

How early should we involve you in a new construction project?

As early as possible. Compressed air affects electrical service, mechanical space, ventilation, and building layout. Decisions locked before the air system is considered are the ones that get expensive.

Do you provide drawings and specifications our contractors can build from?

Yes. We provide equipment specifications, piping layout, and the technical documentation required for installation.

What if we do not know what our air demand is?

Most facilities do not. That is what measurement is for — either logging your current system or building a demand model from your equipment list and production plan.

Start With the Requirements, Not the Catalog

Call (540) 728-1134 or contact us to discuss your project. We will start with what the plant needs to do.

Compressed Air System Engineering & Design