Dry gas seal is an important component in the sealing system centrifugal compressors. The supply that enters dry must meet specifications have been determined based on API 692. However, reality at site damage often occurs, one of which due to contamination from will enter seal. sulfur corrosive process reduces life and reliability In addition, selection a conditioning unit model not quite right...

The practical application of the Universal Modeling Method mathematical model for calculation and optimal gas-dynamic design industrial centrifugal is presented. Two series compressor stages with different hub ratio have been designed by Method. Each includes 10 3D impellers a conditional flow rate in range 0.015 - 0.15. Four from these coefficient 0.035, 0.025 were tested at ECC-55 test rig SP...

A set of enhancements to the ASHRAE Handbook are presented to demonstrate the effectiveness ofmultimedia and advancedpresentation techniques, such as three-dimensional computer graphics, visualization, and animation techniques. These results can also serve as a model and guide for the broader use of these techniques in other ASHRAE publications. GENERAL INTRODUCTION TO PROJECT In this paper, we...

Experimental analysis on the oil supply characteristics of scroll compressor for package air conditioner has been presented based on the experimental apparatus operating at variable speed Scroll compressor has four major lubricating parts : the lower journal bearing, the main journal bearing, the orbiting scroll journal bearing and the thrust bearing between the orbiting scroll and the main fra...

We describe a tool for compressing XML data, with applications in data exchange and archiving, which usually achieves about twice the compression ratio of gzip at roughly the same speed. The compressor, called XMill, incorporates and combines existing compressors in order to apply them to heterogeneous XML data: it uses zlib, the library function for gzip, a collection of datatype speciic compr...

Received Apr 24, 2016 Revised Aug 3, 2016 Accepted Aug 18, 2016 In this paper, a 8x8 multiplier is realized by using 4-2 and 5-2 compressors. Low-power high speed 4-2 compressors and 5-2 compressors are extensively utilized for numerical realizations. Both the compressors circuits that is the 4-2 compressor circuit and 5-2 compressor circuit internally consist of the logic gates i.e. the XOR an...

Variable-speed centrifugal compressors are used in a wide variety of industries and applications, including natural gas pipelines and processing plants, oil refineries and chemical plants, air-separation units, refrigeration and air conditioning equipment refrigerant cycles, gas turbines and auxiliary power generators, and many more. Some natural gas plants, for example, employ a propane-precoo...

Abstract The identification of stall inception mechanisms and stability-limiting components in a centrifugal compressor is required for the development effective surge suppression approaches. Part I this two-part paper investigates signature at subsonic, transonic, supersonic inlet tip conditions, II considers relationship with static pressure characteristics, as well impeller leading edge rela...

Variable inlet guide vanes (VIGVs) are most commonly used as the major control unit of integrally geared centrifugal compressors (IGCCs). In order to enhance efficient operating range compressor, loss mechanisms and utilization limits state-of-the-art VIGVs need be better understood. Field measurements in wake a typical, commercially configuration were therefore conducted at VIGV test facility ...