Design of a Multistage Flash Desalination Plant by the Strong Maximum Principle PDF Download
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Author: Barbara Ann Williams
Publisher:
ISBN:
Category :
Languages : en
Pages : 210
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Author: Barbara Ann Williams
Publisher:
ISBN:
Category :
Languages : en
Pages : 210
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Author: Valentin Plesu
Publisher: Elsevier
ISBN: 0080546315
Category : Technology & Engineering
Languages : en
Pages : 1393
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Book Description
The 17th European Symposium on Computed Aided Process Engineering contains papers presented at the 17th European Symposium of Computer Aided Process Engineering (ESCAPE 17) held in Bucharest, Romania, from 27-30 May 2007. The ESCAPE series serves as a forum for scientists and engineers from academia and industry to discuss progress achieved in the area of Computer Aided Process Engineering (CAPE). The main goal was to emphasize the continuity in research of innovative concepts and systematic design methods as well the diversity of applications emerged from the demands of sustainable development. ESCAPE 17 highlights the progresss software technology needed for implementing simulation based tools.The symposium is based on 5 themes and 27 topics, following the main trends in CAPE area: Modelling, Process and Products Design, Optimisation and Optimal Control and Operation, System Biology and Biological Processes, Process Integration and Sustainable Development. Participants from 50 countries attended and invited speakers presented 5 plenary lectures tackling broad subjects and 10 keynote lectures. Satellite events added a plus to the scientific dimension to this symposium. * All contributions are included on the CD-ROM attached to the book* Attendance from 50 countries with invited speakers presenting 5 plenary lectures tackling broad subjects and 10 keynote lectures
Author: C. T. Mothershed
Publisher:
ISBN:
Category : Saline water conversion plants
Languages : en
Pages : 88
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Author: John Harden Beamer
Publisher:
ISBN:
Category : Mathematical optimization
Languages : en
Pages : 172
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Author: K Speigler
Publisher: Elsevier
ISBN: 0323161839
Category : Technology & Engineering
Languages : en
Pages : 379
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Book Description
Principles of Desalination, Part A, Second Edition is a collection of papers that describes the design of distillation and dual-purpose plants, what desalination can and cannot accomplish in an economical way. One paper discusses techniques toward a rapid and direct way of optimizing the economic performance of sea water conversion systems, incurring capital and continuing costs of operation (for example, transformer equipment, filtration devices, and chemical preparation). Another paper considers the general system and internal system engineering of distillation. Designing distilling plants involves the selection of process parameters, cycle determination, and calculation of water costs. The different types of evaporators are the boiling-type, the flash type, the vapor compression, the combination plant cycles, and the power plant make-up evaporators. Commercial sea water desalination plants incorporate multistage flash evaporators or multieffect vertical-tube or horizontal-tube evaporators. The problem of energy supply to these plants can be solved by a combined generation of electricity and low pressure steam. When the generation of electricity and low pressure steam are combined, the extra fuel demand for electricity generation over the fuel demand for low pressure steam generation only, is less than that for electricity generation alone. This book is suitable for economists, environmentalists, ecologists, and policy makers involved in energy conservation, agricultural development, and water management.
Author: Asghar. Husain
Publisher: EOLSS Publications
ISBN: 0954298942
Category : Power-plants
Languages : en
Pages : 646
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Book Description
Application of advanced computer-oriented techniques are necessary in the synthesis, design analysis and operation of a complex integrated plant to produce power and freshwater, by desalting seawater or brackish water, at higher efficiency and lower cost. These are the two vital commodities to maintains sustainability of life, particularly in the arid regions where natural freshwater supply is either totally lacking or has become scarce. Even in the regions with polluted water resources, such a system is required to support life. At the same time, the available energy should be put to maximum use and life-cycle analysis is essential to ensure sustainability of the systems. The contributors of this book, experts in their own respective fields, outline the various techniques enriched by their experience. The contents of the book would, therefore, be of great interest not only to designers and operators of dual-purpose power-desalination plants but also to educators and researchers as well serve as a valuable source of information to those engaged in other areas of processing industry. The book is motivated by the growing importance of integrated power and desalination plants in general and in their respective regions in particular, and the long felt need for an authoritative book on the subject. After a long gap of more than two decades following the publication of "Principles of Desalination" Spiegler and Laird in 1980, this book would be a welcome addition to the literature in the field to serve as a valuable guide and reference to all those who are concerned with the integration of power and desalination plants. It will also serve as a valuable source of information to those in the processing industry in general.
Author: Baldwin-Lima-Hamilton Corporation
Publisher:
ISBN:
Category : Saline water conversion
Languages : en
Pages : 138
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Author: H. F. Al-Fulaij
Publisher:
ISBN:
Category :
Languages : en
Pages :
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The world population is increasing at a very rapid rate while the natural water resources remain constant. During the past decades industrial desalination (reverse osmosis (RO) and multistage flash desalination (MSF)) became a viable, economical, and sustainable source of fresh water throughout the world. In the MSF units, the flashing of seawater involves formation of pure vapour, which flows through a wire mesh demister to remove the entrained brine droplets and then condenses into product water. The study presented in this thesis is motivated by the absence of detailed modelling and analysis of the dynamics of the MSF process and the demister. A detailed dynamic model can be used in design, control, startup/shutdown and troubleshooting. Most of the previous studies on MSF plant focused on model development and presented limited amount of performance data without any validation against plant data. Literature models of the MSF demister are either empirical or semi-empirical. This motivated use of a computational fluid dynamics (CFD) software to design a new demister that will reduce the pressure/temperature drop in the vapour stream without affecting the separation efficiency of brine droplets and allows the optimal design of complete MSF units. Lumped parameter dynamic models were developed for the once through (MSF-OT) and the brine circulation (MSF-BC) processes. The models were coded using the gPROMS modelling program. The model predictions for both MSF-OT and MSF-BC in steady state and dynamic conditions showed good agreement against data from existing MSF plants with an error less than 1.5%. Dynamic analysis was made to study plant performance upon making step variations in system manipulated variables and identify stable operating regimes. New stable operating regimes were reached upon changing the cooling water flow rate by + 15% and increasing the recycle brine flow rate by 15% and decreasing it by 7%. This was not the case for the steam temperature where its variation was limited to + 2-3 %. This behavior is consistent with the actual plant data. The FLUENT software was used to model the MSF demister using different combinations of Eulerian and Lagrangian approaches to model the vapour and the brine droplets. This provided the open literature with novel and new methodologies for design and simulation of the MSF demister using CFD. A new demister design was made upon varying the wire diameter. This led to an efficient design with low pressure drop and high separation efficiency. This design was used in the MSF/gPROMS model to predict its effect on the heat transfer area. The new design provided reductions of 3-39% in the condenser heat transfer area without affecting dynamic performance. Since the tubing system accounts for almost 70% of the capital cost, then this would reduce the plant capital cost and product unit cost. The modelling approach presented in this thesis enables design of thermal desalination units to determine optimal heat transfer area and optimized operating conditions.
Author: Foster Wheeler Corporation
Publisher:
ISBN:
Category : Saline water conversion
Languages : en
Pages : 144
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Author: Applied Research and Engineering, Ltd., Peterlee, England
Publisher:
ISBN:
Category : Saline water conversion plants
Languages : en
Pages : 150
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