The Effect of Pressure Pulsations and Vibrations on Fully Developed Pipe Flow


Book Description

An analysis is presented of the effect of longitudinal pressure pulsations or vibrations on the velocity distribution in laminar or turbulent fully developed pipe flow. Specifically, the Reynolds equations are formulated in a noninertial reference frame so that the influence of pressure pulsations, vibrations, or a combined pressure and vibrational oscillation can be obtained from a single solution. For axisymmetric developed flow of a constant property (incompressible) fluid, the radial and circumferential momentum equations can be solved and the axial momentum equation is linearized so that the velocity field can be obtained as the sum of a steady and a time-dependent component. By obtaining a solution for the case where the pressure (or amplitude of vibration) varies sinusoidally, one obtains the solution for disturbances of arbitrary waveform through a Fourier series expansion of the disturbance. Results are presented that show that the velocity field is dependent upon the mean flow Reynolds number, a vibrational Reynolds number, and the amplitude of the forcing function. In general, the fluid response to differing waveforms is similar to that obtained for simple harmonic oscillations with respect to the various parameters explored.










Proceedings of the Joint International Conference: 10th Textile Conference and 4th Conference on Engineering and Entrepreneurship


Book Description

This proceedings book encompass a wide range of significant topics within the realms of Technologies, Engineering, Management, and Production, Entrepreneurship, Materials, Textiles, Fashion, and more. The book delves into various areas of Energetics, exploring aspects such as power production, solar power, wind turbines, advanced energetics technologies, energy resource efficiency, global warming and emissions, clean and renewable energies, as well as economic development, global warming, and environmental protections. The Constructions and Transport section features discussions on numerical methods for data manipulation, construction science and technology, transport systems, modeling of transport systems, intelligent transport, traffic management and safety. The Materials segment addresses materials science and application, biopolymers and biotechnology, metallic and composite materials, metallurgical engineering, recycling, manufacturing, and processing of various materials such as paper, plastics, rubber, glass, ceramics, and more. Management and Production topics include technology management, logistic and supply chain management, total quality management, knowledge and innovation management, financial management, marketing research and strategy, industrial marketing, operational research, project management, as well as information technology in enterprises, e-activities, and e-commerce. The book also features an extensive section dedicated to Textiles, covering textile processing and testing, technological advances in the textile industry, ecology and environment in textile production, fiber physics and textile mechanics, finishing, dyeing, and treatment techniques, modeling and simulation, smart and interactive textiles, technical and protective textiles, textile design, fashion, and garment manufacturing, innovations in textile education, as well as leather and footwear technologies.




Handbook of Pumps and Pumping


Book Description

Written by an experienced engineer, this book contains practical information on all aspects of pumps including classifications, materials, seals, installation, commissioning and maintenance. In addition you will find essential information on units, manufacturers and suppliers worldwide, providing a unique reference for your desk, R&D lab, maintenance shop or library.* Includes maintenance techniques, helping you get the optimal performance out of your pump and reducing maintenance costs * Will help you to understand seals, couplings and ancillary equipment, ensuring systems are set up properly to save time and money * Provides useful contacts for manufacturers and suppliers who specialise in pumps, pumping and ancillary equipment




The National Engineer


Book Description

Vols. 34- contain official N.A.P.E. directory.




Root Cause Failure Analysis


Book Description

Root Cause Failure Analysis Provides the knowledge and failure analysis skills necessary for preventing and investigating process equipment failures Process equipment and piping systems are essential for plant availability and performance. Regularly exposed to hazardous service conditions and damage mechanisms, these critical plant assets can result in major failures if not effectively monitored and assessed—potentially causing serious injuries and significant business losses. When used proactively, Root Cause Failure Analysis (RCFA) helps reliability engineers inspect the process equipment and piping system before any abnormal conditions occur. RCFA is equally important after a failure happens: it determines the impact of a failure, helps control the resultant damage, and identifies the steps for preventing future problems. Root Cause Failure Analysis: A Guide to Improve Plant Reliability offers readers clear understanding of degradation mechanisms of process equipment and the concepts needed to perform industrial RCFA investigations. This comprehensive resource describes the methodology of RCFA and provides multiple techniques and industry practices for identifying, predicting, and evaluating equipment failures. Divided into two parts, the text first introduces Root Cause Analysis, explains the failure analysis process, and discusses the management of both human and latent error. The second part focuses on failure analysis of various components such as bolted joints, mechanical seals, steam traps, gearboxes, bearings, couplings, pumps, and compressors. This authoritative volume: Illustrates how failures are associated with part integrity, a complete system, or the execution of an engineering process Describes how proper design, operation, and maintenance of the equipment help to enhance their reliability Covers analysis techniques and industry practices including 5-Why RCFA, fault tree analysis, Pareto charts, and Ishikawa diagrams Features a detailed case study of process plant machinery and a chapter on proactive measures for avoiding failures Bridging the gap between engineering education and practical application, Root Cause Failure Analysis: A Guide to Improve Plant Reliability is an important reference and guide for industrial professionals, including process plant engineers, planning managers, operation and maintenance engineers, process designers, chemical engineers, and instrument engineers. It is also a valuable text for researchers, instructors, and students in relevant areas of engineering and science.




ERDA Energy Research Abstracts


Book Description




Noise, Vibration and Harshness of Electric and Hybrid Vehicles


Book Description

The noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is a critical feature for customers to assess the performance and quality of vehicles. NVH characteristics are higher among factors that customers use to judge the vehicle's quality.This book sets out to introduce the basic concepts, principles, and applications of the NVH development and refi nement of Battery Electric Vehicles (BEV), Hybrid Electric Vehicles (HEV), and Fuel Cell Electric Vehicles. Each type comes with its own set of challenges.




ERDA Energy Research Abstracts


Book Description