scholarly journals Process Automation of Demineralization Plant using Delta PLC, Wonderware Intouch and Delta HMI

2019 ◽  
Vol 8 (3) ◽  
pp. 4721-4727

The proposed project is to design a commercial Programming Logic Controller based automation unit with SCADA and HMI for Demineralization Unit. In Demineralization, the raw water obtained from underground and Lake is treated to meet standard as per usage. Some of the closely monitored are pH, turbidity, etc. The automation tool designed uses DELTA PLC which is interfaced to local HMI which is in-turn connected to Wi–Fi using TP– Link thus supporting Remote Monitoring and Control. For centralized control unit SCADA is used by interfacing PLC with Computer. To match the communication protocol between PLC and SCADA, OPC software called KEPServer is used. Significant improvement in quantity and quality of demineralized water can be achieved. The proposed design is cost effective as it suit for small scale industry

2021 ◽  
Author(s):  
Khalil Ibrahim Alblooshi ◽  
Kamaljit Singh ◽  
Raju Paul ◽  
Faris Ragheb Kamal

Abstract Offshore business is gradually moving from traditional Well Head Platforms to the concept of Artificial Drill Islands and use of renewable energy sources. Navigational Aids design for artificial drilling islands has unique challenges due to vast periphery. This paper highlights all such challenges along with recommendations for a reliable and cost effective solution. Clients as well as FEED/EPC Contractors can benefit from the experience shared in this paper. The trend over the last decade has been to develop Navigation Aids that minimize maintenance requirements whilst maintaining stable and satisfactory performance. Although, Navigation Aids are automated there is still a need for regular visual inspections as there is always the risk of vandalism, ship impact or damage during significant storm events. Navigational Aids System shall be in strict compliance with International Association of Lighthouse Authorities (IALA) Guidelines. In addition to usual Visual & Audible Navigations Aids, artificial islands require break water lanterns (both red & green type). Also, number of Navigational Aids is much more than those required for a typical offshore platform. Requirement of interfaces with remote ends need to be clearly defined as these have impact on the design and ultimate cost. GSM monitoring and control system, GPS synchronization & AIS remote monitoring shall be considered. Cabling over the Island periphery is neither reliable nor cost effective solution. Standalone solar power based Navigational Aids Skids with all control and monitoring facilities can be more suitable solution. Considering that Island Contractor provides few Navigational Aids before the mobilization of EPC Contractor, it is essential to coordinate the Navigational Aids design aspects to ensure synergy in terms of compatibility.


Author(s):  
Anand Srinivasan ◽  
José L. López-Ribot ◽  
Anand K. Ramasubramanian

Microfluidics is the manipulation and control of fluids in small scale, and has heralded a new age in science as evidenced by the rapid increase in the amount and quality of academic and industrial research output in this area in the recent times. Microfluidics has shown tremendous promise in both fundamental and applied research in the field of vascular bioengineering. In this review, we outline the basic principles of microfluidic flow and fabrication techniques, and describe the recent advances in the applications of microfluidic devices in diagnostic and prognostic vascular bioengineering. The field is still in its infancy and has a great potential for research and development as it matures to deliver commercially viable products. This review, focusing on the current status of microfluidic applications to diagnose and treat blood-related disorders, should be a valuable and opportune addition to the literature of interest to both academia and industry.


Agronomy ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 936 ◽  
Author(s):  
Radu L. Sumalan ◽  
Nicoleta Stroia ◽  
Daniel Moga ◽  
Vlad Muresan ◽  
Alexandru Lodin ◽  
...  

This paper presents the development of a cost-effective automatic system for greenhouse environment control. The architectural and functional features were analyzed in the context of the realization of a controlled-environment agricultural system through all its stages: installation, deployment of the software, integration, maintenance, crop control strategy setup and daily operation of the grower. The proposed embedded platform provides remote monitoring and control of the greenhouse environment and is implemented as a distributed sensing and control network integrating wired and wireless nodes. All nodes were built with low-cost, low-power microcontrollers. The key issues that were addressed include the energy-efficient control, the robustness of the distributed control network to faults and a low-cost hardware implementation. The translation of the supervisory growth-planning information to the operational (control network) level is achieved through a specific architecture residing on a crop planning module (CPM) and an interfacing block (IB). A suite of software applications with flows and interfaces developed from a grower-centric perspective was designed and implemented on a multi-tier architecture. The operation of the platform was validated through implementation of sensing and control nodes, application of software for configuration and visualization, and deployment in typical greenhouses.


Author(s):  
Dominik Scholtes ◽  
Stefan Seelecke ◽  
Gianluca Rizzello ◽  
Paul Motzki

Abstract Within industrial manufacturing most processing steps are accompanied by transporting and positioning of workpieces. The active interfaces between handling system and workpiece are industrial grippers, which often are driven by pneumatics, especially in small scale areas. On the way to higher energy efficiency and digital factories, companies are looking for new actuation technologies with more sensor integration and better efficiencies. Commonly used actuators like solenoids and electric engines are in many cases too heavy and large for direct integration into the gripping system. Due to their high energy density shape memory alloys (SMA) are suited to overcome those drawbacks of conventional actuators. Additionally, they feature self-sensing abilities that lead to sensor-less monitoring and control of the actuation system. Another drawback of conventional grippers is their design, which is based on moving parts with linear guides and bearings. These parts are prone to wear, especially in abrasive environments. This can be overcome by a compliant gripper design that is based on flexure hinges and thus dispenses with joints, bearings and guides. In the presented work, the development process of a functional prototype for a compliant gripper driven by a bistable SMA actuation unit for industrial applications is outlined. The focus lies on the development of the SMA actuator, while the first design approach for the compliant gripper mechanism with solid state joints is proposed. The result is a working gripper-prototype which is mainly made of 3D-printed parts. First results of validation experiments are discussed.


1975 ◽  
Vol 1975 (1) ◽  
pp. 177-185 ◽  
Author(s):  
George C. Steinman ◽  
ChappelWalter B.

ABSTRACT This paper provides an overview of the Maritime Administration (MarAd) program to abate and control oil pollution from ships. The main thrust of the program is in the prevention of oil pollution through cost effective measures which would maintain the competitive position of the U.S. merchant fleet. The paper discusses such pollution abatement features as oil discharge monitoring and control systems, oily water separators, oily waste slop tanks, collision avoidance radar, and inert gas systems that are required to be installed on vessels that receive government financial assistance in the form of construction differential subsidy. In addition, the paper addresses the environmental and economic impact of the 1973 International Marine Pollution Convention on the Maritime Administration Tanker Construction Program, particularly as it relates to the IMCO segregated ballast requirements, improved Load-on-Top (LOT) procedures, and port reception facilities. Finally, recommendations for future action to abate ship-generated pollution at the national and international levels are provided.


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