Journal ArticleDOI
Process control in multi-stage flash desalination industry
Vishnu Pandey,R. Nagaraj,A.Y. Dangore,K.L. Thalor,Sivaraman Prabhakar,V.K. Shrivastava,P.K. Tewari +6 more
Reads0
Chats0
TLDR
In this paper, the authors identify various types of control loop available in an MSF plant, selection of control elements, type of control strategy needed for it and integrating the whole system for supervisory control.Abstract:
Process control is an essential part of the desalination industry that requires to be operated under optimum conditions to increase the lifetime of the plant and reduce the unit product cost. Improved process control is a cost-effective approach to energy conservation and increased process profitability. The Multi-Stage Flash (MSF) plant involves many complicated operations related to steam, chemicals and seawater. These include variable capacity, slow dynamics, deadtime characteristics due to certain load changes, significant effects of small deviations from design conditions on plant operation, effects of power plant output conditions on the desalination plant, instability due to disturbances in steam supply and water temperature variations. Keeping in view the above criticalities, the selection of an effective control system becomes inevitable. This paper aims at identifying various types of control loop available in an MSF plant, selection of control elements, type of control strategy needed for it and integrating the whole system for supervisory control.read more
References
More filters
Journal Article
Understand thermal desalination
TL;DR: In this paper, the authors provide an overview of the state of the art and expected future outlook of thermal desalination processes, and discuss some of the challenges involved in the future developments of these processes.
Journal ArticleDOI
Towards improved automation for desalination processes, Part I: Advanced control
TL;DR: The conclusions point out the complexity of the real world control problem which behoves us to advocate the application of techniques such as self-optimizing control strategies and artificial intelligence leading to an integrated system of intelligent control.
Journal ArticleDOI
Transient simulation of a real multi-stage flashing desalination process
TL;DR: In this article, the authors describe a novel method for the simulation of the multi-stage flashing (MSF) desalination process based on a modular simulator, CAMEL™, described in a series of publications by the same authors, which has been expanded by adding elemental software modules to simulate the MSF process.
Journal ArticleDOI
Description and mathematical model of a large MSF desalination plant in SCADA configuration
TL;DR: All supervisory control functions as applied to Supervisory Control and Data Acquisition systems are implemented and for a large desalination plant preference is given to a reliable and dependable system even at the cost of slow data acquisition.