♦ Corresponding Author, Chief Technology Officer: [email protected] ABSTRACT Ramgen Power Systems, Inc. (RPS) is developing a family of high performance supersonic compressors that combine many of the aspects of shock compression systems commonly used in supersonic flight inlets with turbo-machinery design practices employed in conventional axial and centrifugal compressor design. The result i...

The experimental investigation of a centrifugal compresso r is carried out to improve HCFC123 compression performance. A CFCll c ompressor applying HCFC123 shows a lowered adiabatic head rise, efficie ncy, and volume flow. Another CFC!l compressor with HCFC123 and a modifie d impeller shows a result comparable to the CFCll compression case. A tan dem impeller is designed to cover the volume flo...

The derivation of a compressor characteristic, and the experimental validation of a dynamic model for a variable speed centrifugal compressor using this characteristic, are presented. The dynamic compressor model of Fink et al. is used, and a variable speed compressor characteristic is derived by the use of energy transfer and loss analysis. It is demonstrated that taking into account the losse...

Noise has great influence on the signal analysis for centrifugal compressor. In order to eliminate the noise, the iterative singular value decomposition (ISVD) de-noising is applied in this paper. Firstly, the algorithm of this method is introduced. It is based on singular value decomposition about the trajectory matrix of attractor which is reconstructed according to time delay embedding theor...

Centrifugal compressors are most widely used in large capacity refrigeration and air conditioning plants. Its other applications include in gas turbines for air craft applications, diesel engine turbochargers, chemical and process industries, factory workshop air supplies etc. In refrigeration field these are suitable for high specific volume refrigerants or low pressure stages. They have been ...

Centrifugal Compressors play an essential role in oil, gas and petrochemical industries. Their extensive usage is due to their smooth operation and high reliability compared to other other compressor types. One of the main characteristics of these turbomachines is their performance curve, which is an important criterion for selecting the appropriate compressor for a desired working condition. I...

The paper is aimed to create the mathematical model of centrifugal compressor based on group method data handling-type neural networks determine volumetric flow rate as dependence compressor’s technological parameters (the rotor’s angular velocity, inlet and outlet temperatures, pressures, atmospheric pressure). It important scientific task, because most compressors used in process industry don...