Industrial Utility Efficiency

System Assessments

Given that compressed air leak management programs are meant to save energy, reduce CO2 emissions, and generate ROI, DENSO’s Maryville, Tennessee, manufacturing facility can definitively say it has scored a trifecta when it comes to results – and reaped benefits beyond hard numbers alone.

HTE Technologies Adds Efficiency to Already Reliable Compressed Air Systems

Compressed air reliability has been the obsession of both factory personnel and service providers for a number of years now. Constant availability of high quality air can be absolutely critical to maintaining efficient plant production. Most modern factories operate reliable compressed air systems – and more recently have also begun to focus on the efficiency of those systems. The objective of this article is to use a few real-life case studies of already reliable compressed air installations to illustrate the potentially huge economic benefits of also improving system efficiency.

Hidden Compressed Air Opportunities in Chemical Plants

Chemical plants, due to their size and complexity, pose many challenges to the efficient and reliable operation of a compressed air system. There are so many places for hidden opportunities to be found in these large industrial complexes. We are normally dealing with several large centrifugal and rotary screw air compressors scattered across the complex. We encounter sites with well over thirty (30) desiccant air dryers of different types. Compressed air leaks can be found almost at will across the vast lengths of compressed air piping. Add to this the fact they are outdoor installations exposing all compressed air system components to the extremes of summer and winter. As you can imagine, it is a big task to simply understand the system.

Establishing the Baseline in an Old Paper Mill

This paper mill currently spends \$1,747,000 annually on energy to operate the compressed air system at their plant located in the southwestern region of the U.S. The set of projects recommended, in this system assessment, could reduce these energy costs by \$369,000 or twenty-one percent (21%). Estimated costs for completing the projects total \$767,900, representing a simple payback of 25 months. More importantly, these projects will improve productivity, quality and maintenance costs - many associated with poor compressed air quality.

Paper Plant Saves $171,000 in Energy Costs

Based on the air system operating 8,760 hours per year, the group of projects recommended below could reduce these energy costs by an estimated \$170,718 or 56% of current use.  In addition, these projects will allow the plant to have a back-up compressor and help eliminate the rental expenditure for compressor maintenance or downtime.

Piping System Tips for Energy Efficiency

The development of extruded aluminum piping is a recent innovation in the compressed air industry. The internal bore of this piping is smooth and corrosion resistant which makes the pressure differential characteristics of a straight run of this pipe superior to that of steel pipe. Because it is much lighter than steel pipe the installation is much easier. And the manufacturers of this style of piping have come up with various twist lock connectors to make the installation even simpler.

Meat Processing Plant Eliminates 1000 SCFM of Compressed Air Flow

This food & beverage plant is a large (500,000 sq ft) meat processing plant with twenty packaging lines and nine palletizers. The compressed air system is supplied from three separate rooms with seven individual lubricant-cooled, single and two-stage rotary screw compressors. The plant has four blower purge desiccant dryers designed to deliver a - 40°F pressure dewpoint.

Optimizing Centrifugal Compressors at a Glass Bottling Plant

This glass bottle production plant had a complete compressed air audit in 2001 and 2002 at which time many successful projects reduced and stabilized the demand at 3,148 scfm at 95 psig for the high pressure system air and 9,300-9,500 scfm at 58 psig for the low pressure system. Successful application of an oversized 7,200-scfm rated cycling refrigerated dryer completely dried up the high-pressure air, allowing the removal of several non-performing desiccant dryers and savings in direct kW and purge air.

An Aging Plant Air System gets a Face-Lift

The Technical Director of a large facility in the Mid-West (producing valves and meters) hired us to assist with a Site Energy & Utility Systems assessment. The compressed air system quickly became one of the main issues identified. The plant was built in the 1960’s and had expanded over the years. Recent reduction-in-force programs (to reduce costs) had impacted the maintenance department and the plant air system was high among the systems that were the most affected. Over the next several months, as management became attuned to all of the air system issues affecting utility costs and process quality concerns, resources were provided and significant improvements occurred.

Proper Compressed Air for IS Glass Container Machines

Proper compressed air supply to the IS Machine, in glass container manufacturing, is critical. Each process requires carefully controlled pressure, air quality (dryers), and flow as necessary for optimum production with minimum scrap. Most IS machine operations, which Air Power has reviewed over the years, offer significant energy savings opportunities with low capital costs. The final results also enhance quality and productivity.

Arkansas Industrial Machinery Helps TIGG Reduce Energy Costs

TIGG Corporation, a manufacturer of activated carbon adsorption vessels, custom air receivers and other steel tanks and pressure vessels, substantially reduced its energy costs after implementing equipment, labor consolidation and procedural changes resulting from a compressed air energy audit. The audit was performed at TIGG's 155,000 square feet manufacturing facility in Heber Springs, Arkansas to determine the efficiency of the existing compressed air system and to set a baseline for TIGG's participation in Entergy Arkansas’ Large C&I Custom Incentive Program.

Compressor Controls

As part of its ongoing corporate initiative to find ways to reduce its energy bills, and the costly

Piping Storage

Blowing a jet of compressed air at an object is a common but “poor” use of compressed air. Often

End Uses

In this article, we will provide detail on the characteristics of the baseline system and then

Pressure

During Dealer Week, they needed enough compressed air to power multiple machines at a time all day

Air Treatment/N2

Over the last two decades, there has been a significant increase of manufacturing facilities

Leaks

Given that compressed air leak management programs are meant to save energy, reduce CO2 emissions,

Pneumatics

If there was ever a place where manufacturers can save energy using compressed air and make

Vacuum/Blowers

A ‘Process’ application, is one where it’s all about controlling the contents of a vessel, pipeline