The aim of this paper is to present a methodology for optimizing the operation of compressors in parallel in process industries. Compressors in parallel can be found in many applications for example in compressor stations conveying gas through long pipelines and in chemical plants in which compressors supply raw or processed materials to downstream processes. The current work presents an optimi...

in this article, modeling and optimization of power consumption of two–stage compressed airsystem has been investigated. to do so, the two – stage compressed air cycle with intercooler offajr petroleum company was considered. this cycle includes two centrifugal compressors, ashell, and a tube intercooler. for modeling of power consumption, actual compressors isentropicefficiencies and intercool...

Field testing of compressor packages driven by gas turbines or electric motors requires the accurate determination of efficiency, flow, head, and power in sometimes less than ideal working environments. This paper discusses field performance testing of centrifugal compressors and measurement uncertainties one can expect when following appropriate test guidelines. The primary focus is on compres...

Only two classes of compressors were offered at the end of the 1950s in the United States for large air conditioning and refrigeration applications: the positive displacement reciprocating and the dynamic centrifugal machines. Reviewing manufacturers’ catalogs of water chillers showed that the capacity range of the two classes overlapped. The authors of a 1961 paper came to the following conclu...

The co-rotating mechanism is utilized for scroll vacuum pump application by one of the authors. It was found that the corotating scroll compressor is transformed to a centrifugal compressor by reducing the eccentricity between the two scrolls to zero. The authors propose a co-rotating scroll compressor which works not only as a positive displacement compressor, but also as a centrifugal one in ...