Hydraulic Engineering: Fundamental Concepts includes hydraulic processes with corresponding systems and devices. The hydraulic processes includes the fundamentals of fluid mechanics and pressurized pipe flow systems. This book illustrates the use of appropriate pipeline networks along with various devices like pumps, valves and turbines. The knowledge of these processes and devices is extended to design, analysis and implementation.

Fluid power systems are manufactured by many organizations for a very wide range of applications, embodying different arrangements of components to fulfill a given task. Hydraulic components are manufactured to provide the control functions required for the operation of a wide range of systems and applications. This second edition is structured to give an understanding of: - Basic types of components, their operational principles and the estimation of their performance in a variety of applications. - A resume of the flow processes that occur in hydraulic components. - A review of the modeling process for the efficiency of pumps and motors. This new edition also includes a complete analysis for estimating the mechanical loss in a typical hydraulic motor; how circuits can be arranged using available components to provide a range of functional system outputs, including the analysis and design of closed loop control systems and some applications; a description of the use of international standards in the design and management of hydraulic systems; and extensive analysis of hydraulic circuits for different types of hydrostatic power transmission systems and their application.

Bulk oxide determinations from a pair of port-land cements provides the basis for calculation precision and accuracy values for X-ray fluorescence (XRF) analysis for both the fused glass bead and the pressed powder sample preparation. This report is the second in a series on an Inter-laboratory study on chemical analyses of hydraulic cements by X-ray fluorescence for the purpose of estimating precision and qualification criteria. Approximately 45 laboratories provided six replicates analyzed in duplicate for two separate port-land cements containing ca. 5 % limestone, covering fifteen analytes, CaO, SiO2, Al2O3, Fe2O3, SO3, MgO, Na2O, K2O, TiO2, P2O5, Mn2O3, SrO, ZnO, Cr2O3, and Cl, with the laboratories roughly split between the two different sample preparations. Chemical data using traditional chemical analyses (the Reference Methods) from the Cement and Concrete Reference Laboratory (CCRL) proficiency test program were included for comparison to the XRF results.

This book focuses on engineering fundamentals of water use for cooling needs of thermoelectric, or steam cycle, power plants, along with environmental and economic contexts. Water has historically been abundant and cheap; however, the ever-growing human demands for fresh surface water and groundwater are potentially putting ecosystems at risk. Water demands for energy production and electric generation power plants are part of total water demand.

This book contributes important information to aid a broader discussion of integrated water and energy management by providing background, references, and context for water and energy stakeholders specifically on the topic of water for cooling thermal power plants. This book serves as a reference and source of information to power plant owner/operators, water resource managers, energy and environmental regulators, and non-governmental organizations.

From power plant owners wanting to know the tradeoffs in environmental impact and economics of cooling towers to water utilities that might want to deliver waste water for reuse for power plant cooling, this book provides a wide array of regulatory and technical discussion to meet the needs of a broad audience.

STEAM: ITS GENERATION AND USE
Babcock & Wilcox Company

The Early History of the Generation and Use of Steam.
WHILE the time of man's first knowledge and use of the expansive force of the vapor of water is unknown, records show that such knowledge existed earlier than 150 B.C. In a treatise of about that time entitled "Pneumatica," Hero, of Alexander, described not only existing devices of his predecessors and contemporaries but also an invention of his own which utilized the expansive force of steam for raising water above its natural level. He clearly describes three methods in which steam might be used directly as a motive of power; raising water by its elasticity, elevating a weight by its expansive power and producing a rotary motion by its reaction on the atmosphere. The third method, which is known as "Hero's engine," is described as a hollow sphere supported over a caldron or boiler by two trunnions, one of which was hollow, and connected the interior of the sphere with the steam space of the caldron. Two pipes, open at the ends and bent at right angles, were inserted at opposite poles of the sphere, forming a connection between the caldron and the atmosphere. Heat being applied to the caldron, the steam generated passed through the hollow trunnion to the sphere and thence into the atmosphere through the two pipes. By the reaction incidental to its escape through these pipes, the sphere was caused to rotate and here is the primitive steam reaction turbine.
Hero makes no suggestions as to application of any of the devices he describes to a useful purpose. From the time of Hero until the late sixteenth and early seventeenth centuries, there is no record of progress, though evidence is found that such devices as were described by Hero were sometimes used for trivial purposes, the blowing of an organ or the turning of a skillet.
Mathesius, the German author, in 1571; Besson, a philosopher and mathematician at Orleans; Ramelli, in 1858; Battista Della Porta, a Neapolitan mathematician and philosopher, in 1601; Decause, the French engineer and architect, in 1615; and Branca, an Italian architect, in 1629, all published treatises bearing on the subject of the generation of steam.
To the next contributor, Edward Somerset, second Marquis of Worcester, is apparently due the credit of proposing, if not of making, the first useful steam engine. In the "Century of Scantlings and Inventions," published in London in 1663, he describes devices showing that he had in mind the raising of water not only by forcing it from two receivers by direct steam pressure but also for some sort of reciprocating piston actuating one end of a lever, the other operating a pump. His descriptions are rather obscure and no drawings...
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The concept of fluid is a highly successful model, used to describe the dynamics of many-particle systems. In this book, the authors present new developments in hydrodynamics research. Topics discussed include numerical methods for multi-physical magnetohydrodynamics; hydrodynamic flows versus geodesic motions in contemporary astrophysics and cosmology; fractal hydrodynamics model and its implications; laws of bubble coalescence and modelling; nuclear hydrodynamics in heavy-ion collisions; and fluid flow in nanotubes.

This book examines national levee safety with a focus on recommendations and strategic plan implementations of the National Committee on Levee Safety. It is a critical juncture in our nations' history with a burgeoning growth of risk to people and infrastructure as a result of more than 100 years of inattention to levee infrastructure combined with an economy and social fabric that are in a particularly vulnerable state. The current levee safety reality for the United States is stark and uncertain in location, performance and condition of levees and a lack of oversight, technical standards, and effective communication of risks. A look to the future offers two distinct possibilities: one where we continue the status quo and await the certainty of more catastrophes or one where we take reasonable actions and investments in a National Levee Safety Program that turns the tide on risk growth.