This is a two-part article looking at factors impacting decisions on whether to use air or water-cooled air compressors. It also provides heat recovery guidelines for both situations. Part 2 will provide a review of alternative cooling water system options and their approximate operating costs.
When selecting an air compressor for your manufacturing operation, the common choice is the industry-standard rotary screw compressor. Known as the work horse of compressed air machinery, the rotary screw compressor comes in a multitude of sizes and power levels. However, centrifugal compressors have seen some exciting technological progress in recent years and offer a wide range of pressures, flow and turndown. Long known for their longevity and durability, they offer higher efficiency, even qualifying for energy rebate programs offered by local utilities and all, notably, produce Class 0 oil free air.
To continue meeting demand for air compressors, Doosan Bobcat invested heavily in U.S. manufacturing facilities including its one-million-square-foot manufacturing operation in Statesville, North Carolina. The $70 million expansion of the facility amplified its operations, where it now employs 930 people in office and factory positions and manufactures its line of portable air compressors from 185 cfm to 1,600 cfm, in addition to other Bobcat products like compact tractors, generators, light towers and mini track loaders. It also assembles and stocks the expanding line of Doosan Bobcat industrial air compressors.
“The AICD enjoyed a record turnout of exhibitors,” said Jeff Brennan, President, AICD. “We’ve added over 20 member companies this year and our membership again has delivered a strong turnout at this year’s event.” Participating distributor members and guests enjoyed a few days of networking events, trade show, speakers, the AICD Golf Tournament and more.
When Hitachi Industrial Equipment Systems Co., Ltd. (HIES) announced Sullair, Hitachi, and Champion Compressors (Australia) have come together under the umbrella of Hitachi Global Air Power (HGAP), many wondered what it would all mean.
This is a two-part article looking at factors impacting decisions on whether to use air or water-cooled air compressors. It also provides heat recovery guidelines for both situations. Part 1 will provide a brief history on air compressor cooling, a review of cooling water sources and costs, and some cooling cost comparisons between air and water-cooled air compressors.
An air compressor is synonymous with an electric heater – providing compressed air as a side effect. 85-90% of the electrical energy taken in by the air compressor is converted into heat, while the maximum efficiency of compressed air generation is less than 10%. In air compressor heat recovery systems, the focus is on capturing the heat energy contained in the oil, as up to 80% of the energy extracted from the power plant is found there.
Aftermarket genuine parts ensure that the compressed air system will continue to meet the requirements it was engineered to achieve. Replacement parts must fit the compressor correctly so that operation continues to function properly. Parts that are not fitted properly could affect the function of the unit downstream.
The 2023 Hannover Messe was held April 17-21 at the Fairgrounds in Hannover, Germany. I have been visiting this event, since 1992, and it’s great to see old friends, new companies and the latest company and technology developments of firms in the compressed air industry. This article will provide readers with a sampling of compressed air technologies seen.
A focus on sustainable products and packaging, in combination with a passion for quality, has resulted in considerable growth for the firm. Plans to add production lines at facility #1, in turn, drove the need to address the plant’s faltering compressed air system.
Logoplaste, based in Cascais, Portugal, introduced its embedded wall-to-wall manufacturing model to reduce waste and increase efficiency. The model also results in a more economically and environmentally sustainable method of production of rigid plastic packaging since it eliminates the need for a separate secondary packaging plant and the logistics associated with transporting empty bottles.