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Experimental And Computational Studies On Oil Injected Twin Screw Compressor
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Book Synopsis Experimental and Computational Studies on Oil Injected Twin-Screw Compressor by :
Download or read book Experimental and Computational Studies on Oil Injected Twin-Screw Compressor written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas compressors are mechanical devices used for raising the pressure of gas or vapour either by lowering its volume (as in the case of positive displacement machines) or by imparting to it a high kinetic energy which is converted into pressure in a diffuser (as in the case of centrifugal machines). The classification and use of compressors are described in the next section The selection of compressors for different applications is a crucial issue in the process industry. It is usually the most expensive piece of equipment and has dominant influence on cycle efficiency. The common types of compressors used in industry are reciprocating, twin screw, single screw, centrifugal, scroll and rotary vane. Compressor manufacturers are used to having a large market potential. Probably all types of compressors can be improved over what is available in the market today; but the potential return must justify the expense of research and development to achieve the improvement The twin screw compres ...
Book Synopsis An Experimental and Quantitative Analysis to Determine the Effect of Changing Inlet Air Temperatures on the Performance of an Oil Injected Electrically Powered Twin Screw Air Compressor for Industrial Processes by : David George Hunt
Download or read book An Experimental and Quantitative Analysis to Determine the Effect of Changing Inlet Air Temperatures on the Performance of an Oil Injected Electrically Powered Twin Screw Air Compressor for Industrial Processes written by David George Hunt and published by . This book was released on 2012 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Screw Compressors by : Ahmed Kovacevic
Download or read book Screw Compressors written by Ahmed Kovacevic and published by Springer Science & Business Media. This book was released on 2007-01-21 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the most up-to-date methods of three-dimensional modeling of the fluid dymanics and the solid-fluid interaction within these machines, which are still being developed. Adding modeling to the design process makes it possible not only to predict flow patterns more accurately, and also to determine distorting effects on rotors and casing of pressure and temperature distribution within the compressor. Examples outline the scope of the applied mathematical model.
Book Synopsis Positive Displacement Machines by : Ibrahim A. Sultan
Download or read book Positive Displacement Machines written by Ibrahim A. Sultan and published by Academic Press. This book was released on 2019-08-01 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Positive Displacement Machines: Modern Design Innovations and Tools explains the design and workings of a wide range of positive displacement pumps, compressors and gas expanders. Written at a mathematical and technical level, the book explores the most influential research in this field over the past decade, along with industry best practices. Sections highlight the importance of using the latest computation techniques and discuss how to follow the proper design procedures to achieve a desired outcome. Explains how these machines work on a fundamental level, helping the reader build a holistic understanding which aids complex problem- solving Describes how to mathematically model the performance of pumps, compressors and gas expanders Provides advice on how to design and optimize positive displacement machines to match a given application
Book Synopsis Communication and Computing Systems by : B.M.K. Prasad
Download or read book Communication and Computing Systems written by B.M.K. Prasad and published by CRC Press. This book was released on 2017-02-15 with total page 1551 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of accepted papers that were presented at the International Conference on Communication and Computing Systems (ICCCS-2016), Dronacharya College of Engineering, Gurgaon, September 9–11, 2016. The purpose of the conference was to provide a platform for interaction between scientists from industry, academia and other areas of society to discuss the current advancements in the field of communication and computing systems. The papers submitted to the proceedings were peer-reviewed by 2-3 expert referees. This volume contains 5 main subject areas: 1. Signal and Image Processing, 2. Communication & Computer Networks, 3. Soft Computing, Intelligent System, Machine Vision and Artificial Neural Network, 4. VLSI & Embedded System, 5. Software Engineering and Emerging Technologies.
Book Synopsis Investigation Into the Performance of a Twin-screw Compressor for Helium Compression by : Tasha L. Williams
Download or read book Investigation Into the Performance of a Twin-screw Compressor for Helium Compression written by Tasha L. Williams and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The screw compressor is a rotary positive displacement compressor, capable of compressing gas, vapors, and refrigerants. It is commonly used in various applications, including building and architecture, food, chemical process, pharmaceutical, metallurgical industries, refrigeration, air conditioning, vehicle superchargers and in cryogenic helium compression applications. The main characteristics that make the screw compressor attractive include high rotational speed, compactness, ability to maintain high efficiency over a wide range of operating conditions, long service life, and good reliability.An oil-flooded twin screw compressor is selected for investigation in the present work due to its reliability, large capacity, and capability to handle helium's high heat of compression. Oil-flooded screw compressors refers to the oil being injected into the compression process and mixed with helium. The benefits of injected oil are cooling the helium, creating sealing between rotors, lubrication, and higher performance. In helium systems, the loss of power within the compression system is roughly two-thirds. With such a high loss in power, it is imperative to understand the need for investigating the design and thermodynamic parameters that impact the overall performance of these machines.Initially, a review of different types of compressors is carried out to determine the best suited compressor for helium compression in this current work. A numerical model was created to simulate the compression process of the screw compressor. The model consists of three segments: rotor curve generation, thermodynamic analysis, and performance prediction. The geometric data are a necessary input for the thermodynamic analysis; however, the thermodynamic analysis segment can be used for any rotor geometry. The thermodynamic analysis outputs the thermodynamic parameters as a function of the male rotation angle of helium and oil. The performance prediction determines characteristics of performance such as the volumetric and isothermal efficiencies. The model was validated using a commercial software, which was developed on the basis of extensive screw compressor data. The model predicted performance with reasonable accuracy varying at extreme case with a maximum of a 13\\% difference. Using the numerical model, the oil analysis in this thesis determined that the compressor performance is highly dependent on oil injection parameters. The isothermal efficiency spanned from 49.9\\% to 56.5\\% when adjusting the mass flow rate and oil injection position of the oil. Experimental results determined that the discharge temperature has the biggest impact on compressor performance.
Book Synopsis A Theoretical Study of Rotor Forces and Torques in Helical Twin Screw Compressors by : Cheng Xiang You
Download or read book A Theoretical Study of Rotor Forces and Torques in Helical Twin Screw Compressors written by Cheng Xiang You and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Helical twin screw compressors are being increasingly used in the oil and gas process industry and for refrigeration and air conditioning duties. This machine is capable of high reliability. To achieve it both thermodynamic efficiency and rotor forces must be taken into consideration at the design stage. In this study, a computer program for analysing the forces in a twin screw compressor has been developed. It takes into account all significant factors and includes a rotor profile generation program and a geometrical characteristics calculation program. The programs developed have been integrated with an existing performance simulation program and used to investigate several design aspects of a refrigeration twin screw compressor and an unusual refrigeration system design. A comprehensive examination of lobe tip designs suggests that lobe tip design parameters must be optimised if minimum power consumption is to be achieved and the use of a sealing strip gives an advantage. A parameter study for optimum rotor geometrical parameter combinations has shown that the 4+5 and 5+6 combinations have in general high efficiencies, but less rigidity, while the 5+7 and 4+6 combinations give the opposite results. The highest wrap angle and length/diameter ratio do not always lead to the highest compressor performance. A comprehensive examination of the influence of the slide valve on compressor performance and bearing forces has been conducted. Procedures for determining the optimum slide stop and volume ratios are presented. The detrimental effect of the non-return valve in a refrigeration system driven by a twin screw compressor has been examined. A non-reversing clutch fitted to the prime mover is an alternative, but must be designed according to the shut down torque which is higher than the normal running torque. This is demonstrated. An analytical model for axial-torsional coupled vibration in an Oil-injected twin screw compressor has been created. A frequency analysis of all the excitations has been conducted by using an FFT technique. It is found that the fundamental harmonic dominates the gas torque, while the first two harmonics dominate the axial forces.
Book Synopsis Screw Compressors by : Nikola Stosic
Download or read book Screw Compressors written by Nikola Stosic and published by Springer Science & Business Media. This book was released on 2005-06-08 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Althoughtheprinciplesofoperationofhelicalscrewmachines,ascompressors or expanders, have been well known for more than 100 years, it is only during the past 30 years that these machines have become widely used. The main reasons for the long period before they were adopted were their relatively poor e?ciency and the high cost of manufacturing their rotors. Two main developments led to a solution to these di?culties. The ?rst of these was the introduction of the asymmetric rotor pro?le in 1973. This reduced the bl- hole area, which was the main source of internal leakage by approximately 90%, and thereby raised the thermodynamic e?ciency of these machines, to roughly the same level as that of traditional reciprocating compressors. The second was the introduction of precise thread milling machine tools at - proximately the same time. This made it possible to manufacture items of complex shape, such as the rotors, both accurately and cheaply. From then on, as a result of their ever improving e?ciencies, high rel- bility and compact form, screw compressors have taken an increasing share of the compressor market, especially in the ?elds of compressed air production, and refrigeration and air conditioning, and today, a substantial proportion of compressors manufactured for industry are of this type. Despite, the now wide usage of screw compressors and the publication of many scienti?c papers on their development, only a handful of textbooks have been published to date, which give a rigorous exposition of the principles of their operation and none of these are in English.
Book Synopsis The Design and Application of Rotary Twin-shaft Compressors in the Oil and Gas Process Industry by : Ian M. Arbon
Download or read book The Design and Application of Rotary Twin-shaft Compressors in the Oil and Gas Process Industry written by Ian M. Arbon and published by . This book was released on 1994 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses the design and application of rotary twin-shaft compressors. It covers oil-free and oil-injected screw compressors, twin shaft, positive displacement and straight lobe blowers, and goes on to describe the testing of screw compressors and positive displacement blowers.
Book Synopsis Numerical Analysis of Oil Injection in Twin-screw Compressors by : Nausheen Basha
Download or read book Numerical Analysis of Oil Injection in Twin-screw Compressors written by Nausheen Basha and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 13th International Conference on Compressors and Their Systems by : Matthew Read
Download or read book 13th International Conference on Compressors and Their Systems written by Matthew Read and published by Springer Nature. This book was released on 2024-01-01 with total page 877 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new proceedings discusses developments in air, gas and refrigeration compressors, vacuum pumps, and expanders. It is the 13th edition of the International Conference on Compressors and their Systems, a three-day conference organised by the Centre for Compressors Technology at City, University of London in collaboration with, among other, the MEchE, IIR, and IOR. The conference offers a platform to identify current challenges in the field and provide the essential content and direction to shape future research. The International Conference on Compressors and their Systems series began in 1999 as a result of industrial consultation and a need for academic collaboration. Initially, the conference was organised by the Fluid Machinery Group of the Institution of Mechanical Engineers (IMechE) with the support of Holroyd. From 2009, the Centre for Compressor Technology at City, University of London took over its management and the conference is now one of the main conventions, taking place biennially in the UK, becoming world-renowned for its place in industry and academia to gather and discuss a broad range of topical issues related to compressors and compression systems. This year's conference has the theme "Compressors and Expanders in Future Energy Systems” and will be of interest to researchers and engineers in industry.
Book Synopsis 8th International Conference on Compressors and their Systems by : City University London
Download or read book 8th International Conference on Compressors and their Systems written by City University London and published by Elsevier. This book was released on 2013-12-19 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the papers from the 2013 International Conference on Compressors and Their Systems, held from 9-10 September at City University London. The long-running conference series is the ultimate global forum for reviewing the latest developments and novel approaches in compressor research. High-quality technical papers are sourced from around the globe, covering technology development, operation, maintenance and reliability, safety and environmental impact, energy efficiency and carbon footprint, system integration and behaviour, upgrades and refurbishment, design and manufacture, education and professional development. All the papers are previously unpublished and constitute leading edge research. Presents leading edge developments in compressor technology Gives the latest prediction and modelling techniques Details the new technology and machinery
Book Synopsis Experimental Investigation of Inlet Air Temperature on Input Power in an Oil-flooded Rotary Screw Air Compressor by : Ming Han Chua
Download or read book Experimental Investigation of Inlet Air Temperature on Input Power in an Oil-flooded Rotary Screw Air Compressor written by Ming Han Chua and published by . This book was released on 2015 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: For operation of industrial air compressors, conventional wisdom dictates that breathing outside air, which has lower temperature, will reduce the air compressor power consumption. In addition, many energy professionals and reliable sources (Parekh, 2000; Kaya et al., 2002; U.S Department of Energy, 2004; Hick, 2006) advocate the use of cooler air to reduce compressor power consumption. However, experimental results are not available to support the conventional wisdom. The purpose of this thesis is to experimentally investigate the effect of inlet air temperature on an oil-flooded rotary screw compressor located in the University of Alabama. This experiment is set up in a controlled environment. More specifically, a data acquisition system with digitally controlled fluids is developed to control the air demand imposed on the compressor. A range of inlet air temperatures are investigated based on local weather conditions. The injected oil temperature can be modified slightly by restricting the air flow through the air cooler. A design of experiments technique is utilized to evaluate the influence of inlet air temperature, inlet oil temperature, and air flow rate on the compressor power. The results show that inlet air temperature has little or no contribution to the compressor power. Moreover, the collected data shows that power consumption does not vary with inlet oil temperature. The results also show that as the inlet air temperature increases, the isentropic efficiency increases.
Book Synopsis Experimental and Computational Study of a Radial Compressor Inlet by : Jay M. Koch
Download or read book Experimental and Computational Study of a Radial Compressor Inlet written by Jay M. Koch and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented at the International Gas Turbine and Aeroengine Congress and Exposition, Houston, Texas - June 5-8, 1995.
Book Synopsis Experimental and Computational Investigation of Valves in Reciprocating Compressors for Prediction of Performance by : Kartik Srinivas
Download or read book Experimental and Computational Investigation of Valves in Reciprocating Compressors for Prediction of Performance written by Kartik Srinivas and published by . This book was released on 2001 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optimization and Computational Fluid Dynamics by : Dominique Thévenin
Download or read book Optimization and Computational Fluid Dynamics written by Dominique Thévenin and published by Springer Science & Business Media. This book was released on 2008-01-08 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: The numerical optimization of practical applications has been an issue of major importance for the last 10 years. It allows us to explore reliable non-trivial configurations, differing widely from all known solutions. The purpose of this book is to introduce the state-of-the-art concerning this issue and many complementary applications are presented.
Book Synopsis Computer Aided Design of Twin Screw Compressors by : Yan Tang
Download or read book Computer Aided Design of Twin Screw Compressors written by Yan Tang and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
