design of reactive distillation columns

... Part 6: Detailed Design of Built-up Columns Trang 3Single-Storey Steel Buildings Part 6: Detailed Design of Built-up Columns Trang 5FOREWORD This publication is part six of the design guide, ... Architect’s guide Part 2: Concept design Part 3: Actions Part 4: Detailed design of portal frames Part 5: Detailed design of trusses Part 6: Detailed design of built-up columns Part 7: Fire engineering ... buckling resistance of each member (chords, diagonals, etc) of built-up columns made of hot rolled profiles It should be noted that due to the shear deformation, battened built-up columns are more

Ngày tải lên: 01/05/2018, 09:52

... are composed of portions of the physical system An initial set of system components or portions 1s assumed to be available This set could consist of the control designer’s choice of actuators, ... physical structure of the system These objects may be components of the system, or they may be combinations of parts of the system To be general, throughout the chapter, this type of object-oriented ... Trang 14 Design of Structure-Based Hierarchies for Distributed Intelligent Control Dept of Electrical Engineering Dept of Electrical Engineering University of Missouri-Rolla The

Ngày tải lên: 17/10/2013, 19:15

... and Design of Distributed Intelligence Systems Alexander H Levis Department of Systems Engineering George Mason University Fairfax, VA 22030 Abstract Elements of a mathematical theory of distributed ... organization design as follows: In classical management theory, the key concept is that of division of labor A modern counterpart of that approach is the functional decomposition of tasks and ... any stage of processing, a set of options: different algorithms processing in different ways the same input to produce the same type of output Thus, the SA and RS stages of the role of Fig 3.2

Ngày tải lên: 07/11/2013, 09:15

... finish and dimensional accuracy of the workpiece mainly depend on the axial rigidity of the spindle headstock and of the rotary table Therefore, the rigidity of the thrust bear-ings is especially ... viscosity of n = 8 mm2/s An elaborate labyrinth seal protects the bearings from the ingress of cutting fluid and chips (rubbed-off parti-cles) and from oil escape. 21: Bearing arrangement of a rough-turning ... effective in all oper-ating conditions as the expansion of the rotoper-ating parts due to the effects of heat and centrifugal force do not cause jamming of the outer rings in the housing Lubrication,

Ngày tải lên: 25/12/2013, 05:17

... after that. Design of a Control System: The arrangement or the plan of the system structure and the selection of suitable components and parameters Trang 30Design Specifications: A set of prescribed ... system’s equations of motion are rewritten as a system of first-order differential equations, each of these differential equations consists of thetime derivative of the one of the state variables ... System design refers to the process of finding a system that accomplishes a given task Design is the selection and arrangement of the control system components to perform a prescribed task The design

Ngày tải lên: 01/01/2014, 18:43

... the design stage in order to decrease the number of design iterations Within the CE context, major research effort is being devoted in the development of seamless integrated engineering design ... relationship to other elements of design,” “a computer representable data relating to functional requirements, manufac-turing process or physical properties of design,” “attributes of work pieces whose ... Furthermore, the design by features approach assumes that the designer is capable of choosing the best set of features to model a given artifact that has complex interacting features The notion of capturing

Ngày tải lên: 19/01/2014, 18:20

... modern home automation system could be designed in such a way as to improve the quality of life of the owner while improving the security and providing off-site control • I found that data communication ... Centralised control Integration of the functions in a house or office building has been an ongoing study The networking of devices within in a confined space such as a house or office building has found ... automation aspect of the project, the goal is to develop user-friendly interactive software that allows the user to specify when the slave modules must be switched, using one of more of the following

Ngày tải lên: 19/01/2014, 20:20

... Trang 1The Design of Rolling Bearing MountingsPDF 1/8: Trang 2The Design of Rolling Bearing Mountings Design Examples covering Machines, Vehicles and Equipment ... Impression cylinders of a newspaper rotary printing press 7/8 114 Blanket cylinder of a sheet-fed offset 119 Hot gas fan 7/8 120 Fresh air blower 7/8 Trang 7The Design of Rolling Bearing ... wheel shaft of a bucket wheel excavator 5/8 88 Bottom sprocket of a bucket chain dredger 5/8 89 Drive unit of a finished-goods elevator 5/8 CONSTRUCTION MACHINERY 90 Driving axle of a construction

Ngày tải lên: 23/01/2014, 04:20

... at the core of the contents of this volume. This set of volumes consists of seven distinctly titled and well-integrated volumes on the broadly significant subject of computer-aided design, engineering, ... time periods of the planning horizon ( t ϭ 1, NT ). Variables E it Units of expansion of process i at the beginning of period t . P jlt Units of chemical ... jlt Units of chemical j sold to market l at the end of period t . W it Operating level of process i in period t expressed in terms of output of its main

Ngày tải lên: 25/01/2014, 13:20

... the tooth Thus The width of slot between the base of the tips is taken as the average of the distance of the chord length of the inner corners of the tooth tips at the top of the tooth and the chord ... tb —the width of the tooth base, d tb—the depth of the tooth base, d tte —the depth of the tooth tip edge, and d ttc—the depth of the tooth tip center at θt/2 For the purposes of design, it will ... density is a soft recommendation All material parameters are a func-tion of temperature though this aspect of the design is not treated in this introduction to the topic of machine design Temperature

Ngày tải lên: 16/02/2014, 18:55

... directionalproperties of the controls are maintained, and the closed loop system has certain guaranteedstability properties The advantages of the new design methodology are illustrated in the simulation of anacademic ... stage of the control design process, andthen the final controller is designed using ad-hoc modifications and extensive simulations A common classical remedy was to reduce the bandwidth of the ... the design of control systemswith multiple saturations A systematic methodology is introduced to design control systems withmultiple saturations for stable open loop plants The idea is to design

Ngày tải lên: 18/02/2014, 10:20

... calculational style of programming: programs ara derived from their specifications by means of (chunks of) formula mantpulatian These formal derivations take over the role of correctness proofs: programs ... least an order of magnitude longer than the actual code of the program derived In order to keep the process of formula manipulation manageable, conciseness of the notation is of utmost importance ... number of techniques for design- ing programs in which lists play an important role The use of the techniques is illustrated by means of small examples Finally, the third part consists of chapters

Ngày tải lên: 19/02/2014, 14:20

... methods used in reactive distillation 72 4.1 Design problem statement in reactive distillation 81 4.2 Categories of information resulting from the design process in reactive distillation ... performances of the design alternatives 1.4 Scope of Research During the course of this PhD thesis we deal with the design of grassroots reactive distillation processes At this high level of aggregation, ... the line of chemical equilibrium 20 Fundamentals of Reactive Distillation A Stoichiometric lines Residue lines K RAz Loci of reactive azeotropes B C Figure 2.3 Graphical determination of reactive...

Ngày tải lên: 01/04/2014, 11:24

... (mr = 1, me > 2) 7.5 Design Calculation of “Petlyuk Columns and of Columns with Side Sections 7.5.1 Design Calculation of “Petlyuk Columns 7.5.2 Design Calculation of Columns with Side Sections ... with Software References Basic Concepts of Distillation 2.1 Purpose and Process Essence of Distillation 2.1.1 Description of Distillation Process 2.1.2 System of Algebraic Equations of Distillation ... to problems of flowsheet synthesis and to optimal design calculations DistillDesigner software allows refinement and confirmation of the algorithms of optimal design A sample of this software is...

Ngày tải lên: 01/04/2014, 11:27

... citations in reactive distillation design and a mere six in reactive distillation control From 1995 to 2007 there were 435 citations in reactive distillation design and 106 in reactive distillation ... and reactive distillation are presented Reactive distillation columns in isolation and in plantwide systems are considered There are many parameters that affect the design of a reactive distillation ... the U.S Patent Of ce using the following keywords: reactive distillation, catalytic distillation, catalytic reactive distillation, reactive rectification, reactive separation, reactive packing,...

Ngày tải lên: 01/04/2014, 11:30

... hydraulic behaviour of packed columns for the development of a new method for the standard presentation of the fluid dynamics of columns with any type of packing design The basic principles of the method ... Jerzy Ma´ kowiak c Fluid Dynamics of Packed Columns Jerzy Ma´ kowiak c Fluid Dynamics of Packed Columns Principles of the Fluid Dynamic Design of Columns for Gas/Liquid and Liquid/Liquid ... number Froude number of liquid Froude number of liquid Froude number of liquid Reynolds number of liquid Reynolds number of liquid Reynolds number of droplet modified Reynolds number of vapour or gas...

Ngày tải lên: 02/04/2014, 14:41

... Click the Design menu > Steel Frame Design > Start Design/ Check of Structure command or the Start Steel Design/ Check of Structure button, to start the steel frame design process The program designs ... Click the Design menu > Steel Frame Design > Start Design/ Check of Structure command or the Start Steel Design/ Check of Structure process button, to start the steel frame design G When the design ... and design sections match This may take numerous iterations depending upon the complexity of the model H When the analysis and design sections are the same, click the Design menu > Steel Frame Design...

Ngày tải lên: 06/09/2012, 15:56

... title of the window reads YZ Plane @ X=24 This same title also occurs on the left-hand side of the status bar at the bottom of the SAP2000 window Click the roof level beam on the left side of the ... enter Select Mode 24 Click the roof beam at the top of the braced frame to select it Also click the joint at the top of the chevron brace (center of braced frame roof beam) to select it 25 From ... side of the point where you clicked SAP2000 Web Tutorial 18 Thus click the ten locations designated by an O in Figure C-9 to draw some of the roof level beams Figure C-9: Quick Drawing Roof Level...

Ngày tải lên: 06/09/2012, 15:56

... being designed for a small office building with a total live load of 250 kips and dead load of 500 kips Find: (a) the depth Df for a fully compensated foundation, (b) the depth Df if a soft clay ... in some areas of the central and western United States Photograph of the construction of the mat foundation for the new Century Hotel in San Francisco (1999) Having had 25 feet of dredge spoils ... for the top bars Applying Example Design the steel lying in the East-West direction of the mat shown below with external dimensions of 42 feet by 74 feet The columns are all 15”by 15”, the LF...

Ngày tải lên: 16/10/2012, 10:43

... the strength design philosophy for the design of concrete structures, and load and resistance factor design (LRFD) for the design of steel structures Readers of the first edition of this book ... Dr Taly is the author of Loads and Load Paths in Buildings: Principles of Structural Design and Design of Modern Highway Bridges He is a co-author of Reinforced Concrete Design with FRP Composites ... cross-sectional area of member, in.4 (mm4) Ieff = effective moment of inertia of member, in.4 (mm4) Ig = moment of inertia of gross (or uncracked) cross-sectional area of member, in.4 (mm4) j = ratio of distance...

Ngày tải lên: 17/08/2013, 11:41