This is a single license purchase and comes with a 3 year digital subscription that will be updated periodically.
Contents Description: What every gas industry employee should know about environmental compliance a must have for employees who deal with environmental issues on a daily basis.
The SGA Layman's Guide to Environmental Issues in the Natural Gas Industry was developed and written by industry environmental professionals and consultants to provide a basic regulatory summary of the environmental regulations that directly affect the natural gas industry.
Increased Flexibility of Turbo-Compressors in Natural Gas Transmission through Direct Surge Control
Surge is a dramatic collapse of flow within a centrifugal compressor which results in reverse flows and potential damage to bearings and other compressor components. The traditional approach to avoiding surge is to recycle flow to maintain a selected minimum rate. However, current external surge control systems result in opening the recycle valve sooner and maintaining a higher flow rate than necessary, which reduces the efficient operating range, wastes fuel, and significantly increases the cost of compressor operation. If an improved surge control system that senses the approach of surge can be implemented, then compressors can be controlled close to surge while avoiding damage. Such a Direct Surge Control System will increase operating range and flexibility and reduce the operating costs of avoiding surge. The Direct Surge Control System described in this paper results from a multi-year research project that is funded by the Department of Energy's (DOE) Office of Fossil Energy and managed by the National Energy Technology Laboratory (NETL) as part of their Natural Gas Infrastructure Reliability Program. The project is co-funded by GMRC and Siemens Energy and Automation, who is participating in the overall project s the surge controller developer and the commercialization partner. This paper presents a brief background, some laboratory test results, and a complete description of the Direct Surge Control System that is being developed and prototype tested at this time. This paper explains the step-by-step process for implementing Direct Surge Control in modern centrifugal compressors. In order to retrofit a field compressor with the current state of this technology, the impeller needs to be of a modern 3D geometry, a drag probe has to be designed (Sized) and fabricated for the gas velocity and density range, a drag probe has to be installed close to the impeller inlet within the compressor with wiring securely mounted and penetrating the compressor's pressure bound
This is a single license purchase and comes with a 3 year digital subscription that will be updated periodically.
Contents Description: What every gas industry employee should know about environmental compliance a must have for employees who deal with environmental issues on a daily basis.
The SGA Layman's Guide to Environmental Issues in the Natural Gas Industry was developed and written by industry environmental professionals and consultants to provide a basic regulatory summary of the environmental regulations that directly affect the natural gas industry.