mechanical design and operation of alkanolamine plants

Ngày tải lên: 21/02/2014, 08:20

... products and operations ¥ To operate our plants and facilities, and to handle our raw materials and products in a manner that protects the environment, and the safety and health of our employees and ... aspects of the design, operation, and maintenance of liqueÞed petroleum gas (LPG) storage facilities from the standpoints of prevention and control of releases, Þre-protection design, and Þre-control ... maintenance of LPG storage facilities from the standpoints of prevention and control of releases, Þre protection design, and Þre-control measures The history of LPG storage facility failure, facility design...

Ngày tải lên: 27/03/2014, 14:07

... present the design and control of an underactuated two link robot called the Pendubot We first give details of the design of the Pendubot, discussing the components of the linkage and the interface ... Coordinate Description of the Pendubot l1 is the length of link one, lc1 and lc2 are the distances to the center of mass of the respective links and q1 and q2 are the joint angles of the respective ... Front and Side Perspective Drawings of the Pendubot direct drive control, we designed the Pendubot to hang off the side of a table coupling link one directly to the shaft of the motor The mount and...

Ngày tải lên: 31/03/2014, 23:20

... Case Maximization of recovery of S-pindolol and minimization of desorbent flow rate 180 7.3.3 Case Maximization of recovery of S-pindolol and minimization of desorbent flow rate at design stage 185 ... study on the optimal design and operation of bio-reactors and bio-separators using SMB technology The purpose of this work is twofold Firstly, this study aims to develop and optimize a modified ... Concentration profiles of glucose and fructose after 800 switching periods 64 Figure 3.3 Comparison of Pareto optimal solutions and the corresponding decision variables, and calculated values of XG and PurF...

Ngày tải lên: 15/09/2015, 17:10

... limitations Table Characterization of the different phases of WWTP operation Operational phase Operational reactor phases Start-up Operation Operation Operation Operation Operation 1st sludge purge 2nd ... Unicer SA and Varnam and Sutherland, 1994) BREWERY AND WINERY A mass balance is depicted in Figure 2, which represents water and energy inputs, and also the outputs respecting residues and sub-products, ... Another factor is the amount of waste sludge generated from aerobic metabolism, which also needs to be handled and disposed of Both increase the cost of operation of the treatment system Therefore,...

Ngày tải lên: 22/02/2014, 05:20

... software without detail understanding Despite of the various standard and code, there is limited procedure and rules in designing the floating roof which result lots of floating roof failure and ... Project Limitations of Use The Council of the University of Southern Queensland, its Faculty of Engineering and Surveying, and the staff of the University of Southern Queensland, not accept any ... Roof Tanks 2.2.3 Floating roof Tanks v 2.3 Design Code and Standard 10 2.4 Floating Roof Tank 11 2.4.1 History and Introduction 11 2.4.2 Principles of the Floating roof 11 2.4.3 Advantages of...

Ngày tải lên: 15/03/2014, 05:20

... THE CHEMICAL LABORATORY: ITS DESIGN AND OPERATION THE CHEMICAL LABORATORY: ITS DESIGN AND OPERATION A Practical Guide for Planners of Industrial, Medical, or Educational Facilities ... specifically tailored to the needs of this particular laboratory? Examples of both underdesign and overdesign, usually resulting from poor communication between designer and client, are given Throughout ... aspects of planning Only he can estimate space requirements, check a proposed layout for practical and safe operation, and recommend allowances for future expansion Regardless of the amount of professional...

Ngày tải lên: 31/05/2014, 01:37

... Chapter where At and Aj are the areas of surfaces i and j, respectively, and /? ,and Pj axe the angles between the position-dependent normal vectors to surfaces i and j and a line of length r connecting ... shock and vibration Thermomechanical management is concerned with the impact of thermal loads on the mechanical behavior of the system In this work, we will set the foundation for thermal and mechanical ... GROUPS Most often results of engineering research and works in fluid flow and heat transfer are expressed in terms of nondimensional numbers It is important to develop a good understanding of these...

Ngày tải lên: 03/06/2014, 01:25

... master degree of mechanical engineering Most of top management managers have got bachelor degrees and professional backgrounds and have more than 10 years of experience in mechanical and metallurgical ... manufacturing and business fields of MDC are mechanics, foundry and metallurgy Main products of the company are mechanical machineries and tools, mechanical processing, cast iron pipes and spare-parts ... selection and retention is measured by low % of employee turnover rate, low % of unqualified human resources and high % achievement of recruitment demand Chapter – Current situation of Mai Dong Mechanical...

Ngày tải lên: 14/10/2014, 01:10

... accurate mathematical modelling of PMSMs provides a foundation for the design and control of PMSMs The accuracy of the model directly affects the outcome of the design and control A two-phase PMSM ... design and control techniques of PMSMs for constant power operation are possible Therefore, the objectives of this research are: • Analysis of constant power speed range for IPMSM Drives; • Design ... analysis, design and control of PMSMs In this thesis, a design and control method for PMSMs is developed based on the analysis of PMSMs with different rotor structures The prototype PMSM was designed...

Ngày tải lên: 15/09/2015, 22:06

... common in computer applications One of the most difficult workloads for file system designs to handle efficiently is found in of ce and engineering environments Of ce and engineering applications tend ... areas of cost and capacity rather than performance There are two components of disk performance: transfer bandwidth and access time Although both of these factors are improving, the rate of improvement ... us to understand the effects of random access patterns and locality, both of which can be exploited to reduce the cost of cleaning The simulator models a file system as a fixed number of 4-kbyte...

Ngày tải lên: 12/09/2012, 15:05

... any SOFC system, the performance of the INER SOFC system is dependent not only on the design and operating conditions of the fuel cell stack, but also on the design and operating conditions of ... ratio (S/C) of 1.7 and an oxidant-to-carbon ratio (O/C) of 0.3 Following completion of the optimization process shown in Figure (yielding a cell voltage and current density of 0.78 V and 400 A/cm2, ... SOFC BOP system (S/C=1.7, O/C=0.3, fuel utilization = 64.2%, electrical conversion efficiency = 44%) Design of SOFC BOP components The BOP components of a SOFC system account for between 50% and...

Ngày tải lên: 05/09/2013, 16:10

... Instead we must compromise and accept a more gradual cutoff between passband and stopband, as well as specify a transition band between the passband and stopband The design is based on magnitude ... Magnitude response of bandpass filter with narrow bandwidth 188 DESIGN AND IMPLEMENTATION OF FIR FILTERS where !a and !b are the lower and upper cut-off frequencies, respectively The bandwidth is the ... range of frequencies that are 184 DESIGN AND IMPLEMENTATION OF FIR FILTERS passed without attenuation is the passband of the filter, and the range of frequencies that is attenuated is the stopband...

Ngày tải lên: 23/10/2013, 22:15

... Head of School, School of Information Technology and Electrical Engineering, University of Queensland, St Lucia, Qld, 4072 Dear Professor Simon Kaplan, In accordance with the requirements of the ... type of switch, the design requires the inclusion of slight time delays when the MOSFETs are switching A dead band is the time delay between switching off one MOSFET on a phase of the inverter and ... intention of this SIMULINK design, is that the FO control portion of the design will cause the rotor to generate a speed profile that follows the commanded speed input, ω* To this, the commanded...

Ngày tải lên: 27/10/2013, 23:15

... methods and experimental results of two fabricated accelerometers Major parameters of the sensor are measured Experimental results point out some design issues such as spring design and needs of offset ... divided by the gain of front end stage, and are negligible There are several different type of noise involved: thermal noise of MOS devices, flicker noise of MOS devices, and shot noise of biasing diodes ... Simulation results of the frequency responds compared with experimental results proofmass of 0.5µg, resonant frequency 8kHz, and Q of Vfb_low is 3V and Vfb_high is 15V It’s found that for Q of 3, compensation...

Ngày tải lên: 27/10/2013, 23:15

... frequency range of stopband is < F < Ws, the passband is Wp < F < 1, and Wp > Ws For bandpass and bandstop filters, Wp and Ws are two-element vectors that specify the transition bandages, with ... frequency defined in (6.2.15) and BW is the bandwidth defined in (6.2.16) 255 DESIGN OF IIR FILTERS 6.3 Design of IIR Filters In this section, we discuss the design of digital filters that have ... critical frequencies 258 DESIGN AND IMPLEMENTATION OF IIR FILTERS such as cutoff and bandwidth frequencies specified for the digital filter can be used directly in the design of the analog filter...

Ngày tải lên: 28/10/2013, 05:15

... between members of the public and representatives of official bodies, and on how discourses and local practitioners influence and recreate participation in and design of services and new technology ... their production and use’.85 As informatics shifts from the study of information systems to the study of design of services, 86 and networks of information and communication, design itself becomes ... the environments of their intended use’ 79 Lucy Suchman, Professor of Anthropology of Science and Technology at Lancaster University, was one of the founders of the work practice and technology...

Ngày tải lên: 04/11/2013, 20:15

... of interior span = 0.45 *369 on 3m strip = 55.4KNm Analysis of flat slab Analysis of flat slab DESIGN FOR BENDING INTERNAL PANELS • columns and middle strips should be designed to withstand design ... to the centre of building Typical floor plan of Compass the Elizabeth Design Considerations Design Considerations OPTIMISATION OF STRUCTURAL LAYOUT PLAN • the sizes of vertical and structural ... if dimension < lx/3 Design methodology Design methodology EQUIVALENT FRAME METHOD Plan of floor slab Step : define line of support in X & Y directions Design methodology Design methodology ...

Ngày tải lên: 12/12/2013, 14:15

... methods and experimental results of two fabricated accelerometers Major parameters of the sensor are measured Experimental results point out some design issues such as spring design and needs of offset ... divided by the gain of front end stage, and are negligible There are several different type of noise involved: thermal noise of MOS devices, flicker noise of MOS devices, and shot noise of biasing diodes ... Simulation results of the frequency responds compared with experimental results proofmass of 0.5µg, resonant frequency 8kHz, and Q of Vfb_low is 3V and Vfb_high is 15V It’s found that for Q of 3, compensation...

Ngày tải lên: 22/12/2013, 08:16

... Gajski, D and Vahid, F., Specification and design of embedded hardware-software systems, IEEE Design & Test of Computers, pp 53-67, Spring 1995 [14] DeBardelaben, J and Madisetti, V., Hardware/software ... process of MUX where bwtransmitting is the consumed bandwidth of transmitting packets, bwpassing is the consumed bandwidth of passing packets, bwecho is the consumed bandwidth of echo packets, and ... approximately 19 of CPU time and h of wall clock time These numbers indicate the usefulness of this abstraction level in the design hierarchy The goal is to prove correctness of design and not simulate...

Ngày tải lên: 25/12/2013, 06:16