It was 1964, and Ernest Hotze, a mechanical engineer who put himself through Oklahoma University working in oilfields, was trying to sell Tennessee Gas Pipeline some large compressors. Hotze worked for Clark Brothers, one of four big compressor manufacturers, and the business was very different from its modern incarnation.
Old-fashioned high-pressure reciprocating compressors and oil-sealed heavy-bolted-head high-pressure centrifugal compressors have been used in high-pressure pipeline stations for decades. However, they seem unreliable, inefficient, heavy, bulky and wasteful. Modern high-pressure gas stations use vertically split, dry-gas-sealed, shear-ring head centrifugal compressors for high-pressure service.
This article considers the bypass method for capacity control in reciprocating compressors. The method is the oldest in controlling outlet capacity, which is used in all types of compressors for turndown capacity between 100% and zero.
Atlas Copco Compressors Product Company has dedicated a new 96,000 square foot facility in Houston, housing customer relations for North and South America as well as producing a wide range of air compressors, dryers and skid packages. The new building brings together 150 employees from several Atlas Copco subsidiaries under one roof to create its largest office in the United States.
Reciprocating compressors and centrifugal compressors have different operating characteristics and use different efficiency definitions. This article provides guidelines for an equitable comparison, resulting in a universal efficiency definition for both types of machines. The comparison is based on the requirements in which a user is ultimately interested. Further, the impact of actual pipeline operating conditions and the impact on efficiency at different load levels is evaluated.
Ongoing field testing of a semi-active valve (SAV) concept on a BP natural gas gathering facility reciprocating compressor through Oct. 3, 2008, demonstrated that the concept is practical and can significantly extend compressor valve life. Specifically, the field tests showed:
Two longtime employees of Compressor Engineering Corporation (CECO) celebrated 50 years of service to the compressor industry with a dinner and reception in Ruston, Louisiana on Saturday, April 4.
Bill Arrant, Senior Engineering Consultant, and Art Black, retired Vice President of Manufacturing and Engineering for CECO, were honored by their customers and friends from CECO.