scholarly journals Industrial Automation in Unit Operations Labs

2015 ◽  
Author(s):  
Konstantinos Apostolou ◽  
Ishwar Singh
Keyword(s):  
Chemical Engineering ◽  
Field Work ◽  
Pilot Scale ◽  
Unit Operation ◽  
Sensors And Actuators ◽  
Industrial Automation ◽  
Control Loops ◽  
Unit Operations ◽  
Processing Facility ◽  
Set Up

Chemical engineering unit operation labsdo an excellent job of integrating the whole curriculumand exposing students to pilot-scale systems. Where theyare often lacking, though, is the exposure to and use ofreal-life industrial automation by the future graduates. Aunit operation lab that has been automated usingindustrial level paradigms and equipment is the focus ofthis paper. A partnership with a global automationmanufacturer (Emerson) was established and the lab wasretrofitted using industrial sensors and actuators, aDistributed Control System (DeltaV DCS), industrialnetworks (FOUNDATION Fieldbus and AS-i), HumanMachine Interface (HMI) screens, and systemredundancy. The details of the automation along with itsuse through the lab curriculum will be discussed. Thiscross-curricular approach benefits students as, throughthe regular unit operation labs, they become familiar withkey elements of an automated set-up, understand the needfor it and its limitations, see control loops in action,communicate to the units through the HMI, and use theHMI to recover historical data on the processes. The labis a meso-scale of a processing facility and preparesstudents for field work after graduation. At the sametime, the traditional exposure to “manually operated”sensors and final elements is maintained as some of theunits have not been converted to fully automated systems

scholarly journals The Dynamic Response and Characteristics of an Oxygen Vacuum Swing Adsorption Process to Step Perturbations. Part 1. Open Loop Responses

2003 ◽  
Vol 21 (4) ◽  
pp. 319-347 ◽  
Author(s):  
C.C.K. Beh ◽  
P.A. Webley
Keyword(s):  
Chemical Engineering ◽  
Adsorption Process ◽  
Pilot Scale ◽  
Open Loop ◽  
Operating Conditions ◽  
Temperature Profiles ◽  
Unit Operation ◽  
Control Loop ◽  
Vacuum Swing Adsorption ◽  
And Control

Oxygen vacuum swing adsorption (VSA) has emerged as an important unit operation in many chemical engineering processes such as iron and aluminium smelting, making oxygen the third largest man-made chemical commodity in the world. Although a mature technology (with the first patents published in the 1970s), oxygen VSA processes are still not well understood due to their complicated batch-like operation, inherent non-linearities and inverse responses associated with the operating conditions. Step perturbations of manipulated variables together with the process response provide valuable information for the study of system dynamics, the extent of interaction and control loop pairings. The first part of this study presents data from input perturbations gathered from a pilot-scale experimental oxygen VSA process. The interesting time-variant temperature profiles, and bed and system pressures, flows and purity are the main focus of the discussion. Furthermore, the possible applications of this knowledge for heuristic-based control are discussed.

Qaanaaq 2001: mineral exploration reconnaissance in North-West Greenland

2002 ◽  
pp. 133-143
Author(s):  
Bjørn Thomassen ◽  
Peter R. Dawes ◽  
Agnete Steenfelt ◽  
Johan Ditlev Krebs
Keyword(s):  
Mineral Exploration ◽  
Mining Industry ◽  
Field Work ◽  
Original Series ◽  
West Greenland ◽  
North West ◽  
Ice Caps ◽  
High Plateau ◽  
Set Up ◽  
Inland Ice

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Thomassen, B., Dawes, P. R., Steenfelt, A., & Krebs, J. D. (2002). Qaanaaq 2001: mineral exploration reconnaissance in North-West Greenland. Geology of Greenland Survey Bulletin, 191, 133-143. https://doi.org/10.34194/ggub.v191.5141 _______________ Project Qaanaaq 2001, involving one season’s field work, was set up to investigate the mineral occurrences and potential of North-West Greenland between Olrik Fjord and Kap Alexander (77°10´N – 78°10´N; Fig. 1). Organised by the Geological Survey of Denmark and Greenland (GEUS) and the Bureau of Minerals and Petroleum (BMP), Government of Greenland, the project is mainly funded by the latter and has the overall goal of attracting the interest of the mining industry to the region. The investigated region – herein referred to as the Qaanaaq region – comprises 4300 km2 of ice-free land centred on Qaanaaq, the administrative capital of Qaanaap (Thule) municipality. Much of the region is characterised by a 500–800 m high plateau capped by local ice caps and intersected by fjords and glaciers. High dissected terrain occurs in Northumberland Ø and in the hinterland of Prudhoe Land where nunataks are common along the margin of the Inland Ice.

Bioseparations Science and Engineering

2015 ◽  
Author(s):  
Roger G. Harrison ◽  
Paul W. Todd ◽  
Scott R. Rudge ◽  
Demetri P. Petrides
Keyword(s):  
Process Design ◽  
Qualitative Description ◽  
Engineering Practice ◽  
Unit Operation ◽  
Science And Engineering ◽  
Scientific Application ◽  
General Application ◽  
Unit Operations ◽  
Analysis Computer ◽  
Consistent Method

Designed for undergraduates, graduate students, and industry practitioners, Bioseparations Science and Engineering fills a critical need in the field of bioseparations. Current, comprehensive, and concise, it covers bioseparations unit operations in unprecedented depth. In each of the chapters, the authors use a consistent method of explaining unit operations, starting with a qualitative description noting the significance and general application of the unit operation. They then illustrate the scientific application of the operation, develop the required mathematical theory, and finally, describe the applications of the theory in engineering practice, with an emphasis on design and scaleup. Unique to this text is a chapter dedicated to bioseparations process design and economics, in which a process simular, SuperPro Designer® is used to analyze and evaluate the production of three important biological products. New to this second edition are updated discussions of moment analysis, computer simulation, membrane chromatography, and evaporation, among others, as well as revised problem sets. Unique features include basic information about bioproducts and engineering analysis and a chapter with bioseparations laboratory exercises. Bioseparations Science and Engineering is ideal for students and professionals working in or studying bioseparations, and is the premier text in the field.

Microstructured Reactors for Gas Phase Reactions

2008 ◽  
Author(s):  
Steffen Schirrmeister
Keyword(s):  
Gas Phase ◽  
Flow Distribution ◽  
Pilot Scale ◽  
Gas Phase Reactions ◽  
Process Technology ◽  
Safety Issues ◽  
Catalyst Coating ◽  
Coating Flow ◽  
Set Up ◽  
Micro Technology

Pilot-scale micro-process technology for heterogeneously catalyzed gas phase reactions is generally highly demanding towards the methods of catalyst coating, flow distribution, reactor manufacturing and assembly, safety issues and other factors. Yet, first cost analysis have shown that economical processes can be developed using micro-technology. For this matter, it is necessary to improve and simplify the laboratory set-up, meaning that the stacked architectures at the meter-scale must be brought down to the micron-scale. This in return calls for specific methods of catalyst coating and a particularly precise assembly of the operation unit.

scholarly journals Precision geoinformatical system of the pear gene-collection orchard

2012 ◽  
Vol 18 (1) ◽  
Author(s):  
J. Tamás ◽  
A. Nagy ◽  
T. Fórián ◽  
J. Nyéki ◽  
T. Szabó ◽  
...  
Keyword(s):  
Data Base ◽  
Spatial Data ◽  
Single Species ◽  
Field Work ◽  
Stress Sensitivity ◽  
Hyperspectral Data ◽  
Data Cube ◽  
The Sustainable Development ◽  
Fruit Species ◽  
Set Up

The principle task of the sustainable development is the preservation of the genetic variety, which is similar challenge in the horticulture regarding the sublimation of fruit species. The breeders of the traditional fruit strains give stock to the sustenance diversity of the agro-environment on the species and landscape level. In 2009, hyperspectral images have been taken by AISA Dual sensors from the pear gene pool in Újfehértó, Hungary. The hyperspectral data cube (in the wavelength range of 400-2500 nm, with 1.5 m ground resolution) ensured possibility to make the spectral library of pear species. In the course of the simultaneously field work the spatial position and individual extent of all pear trees was defined to set up a detailed GIS data base. The water stress sensitivity of single species and the descriptive spectral curves were determined with common evaluation of the spectral and spatial data. Based on the unique methodology processing and the hyperspectral data base suitable strains can be chosen for agro-environment and let take adaptive stocks regarding climate change into the genetic grafting work. Furthermore we could determine and map the sparsely species in the region with the help of the hyperspectral data.

scholarly journals A study to set-up a technological process for purification of Zinc scraps by using liquation method

2021 ◽  
Vol 8 (1) ◽  
pp. 36-43
Author(s):  
Ngoc Vuong Tran ◽  
Manh Hung Luong ◽  
Dinh Dang Nguyen
Keyword(s):  
Zinc Oxide ◽  
Raw Materials ◽  
Time Factors ◽  
Pilot Scale ◽  
Raw Material ◽  
Optimal Time ◽  
Fe Content ◽  
Technology Process ◽  
Zn Content ◽  
Set Up

Zinc scrap is a source of raw material for zinc oxide production. However, to qualify the requirement of raw material for zinc oxide (99.5%) production, refining this source is needed. Many methods are considered such as rectification, chemical method, etc., but difficult to apply on an industrial scale. This workfocused on the investigation of the influence of temperature and time factors for asessing the possibility of applying liquation method for the purification of impurities from scrap zinc.The experiment results show that the optimum temperature of liquation to remove Pb,Fe from zinc scrap is in the range of 440-450°C, the optimal time of the process is 8h for the pot with 8cm in height and 6cm in diameter (the quantity of raw zinc sample is about 2kg / batch), then we can obtain about 80% of zinc metal with an average Zn content of about 97, 0%, both Pb and Fe content decreased to a range from 0.35 to 0.4%, and 1.0 to 1.1%, respectively, which meet the requirement of raw materials for the production of high quanlity ZnO ( 99,5 %). Based on the parameters obtained on lab-scale, a trial on pilot scale of 250 kg / batch was conducted, The result confirms that the quality of the products meets the requirement of raw materials for production of high quality ZnO (99.5%) and a technology process for refining zinc scrap by the liquation was proposed.

scholarly journals Sequencing of unit operations for integral and sustainable peanut processing

2020 ◽  
Vol 9 (6) ◽  
pp. e67963449
Author(s):  
Bianca Guimarães ◽  
Jéssica Terra Teodoro Silva ◽  
Kássia Graciele Santos ◽  
José Luiz Vieira Neto
Keyword(s):  
Solar Energy ◽  
Chemical Engineering ◽  
Sustainable Use ◽  
Fixed Bed ◽  
Analysis Data ◽  
Fine Coal ◽  
Unit Operations ◽  
Ecological Relationship ◽  
Immediate Analysis ◽  
Drying Efficiency

The most used biomass are wood, sugar cane, paper, rice husk, and peanut. Based on the concept of sustainability and waste reduction, the full utilization of biomass is an alternative capable of providing people with a better nutritional intake, improving the economy related to biomass and the ecological relationship between man and the environment. So, the aim of this work was the sustainable use the biomass, the peanut, through multiple unit operations. Thus, the material went through several processes as the grinding process, where it was possible to obtain immediate analysis data (moisture content, ash content, volatile content and fixed carbon) and particle size. Then, drying was performed employing solar energy and the drying efficiency was obtained. Infrared and greenhouse tests were performed in the laboratory to determine the drying and humidity curves. After drying, it was also carried out the oil extraction using ethanol as solvent heated by solar energy. After that, the residual cake was used as the adsorbent material in the dye removal by adsorption in a fixed bed. So, the dye-impregnated adsorbent has undergone a process of pyrolysis in order to form fine coal, bio-oil, and gases. With products and by-products of each process, it was possible to generate the infrared spectrum of each. Therefore, it is shown how the integral use of peanut as biomass is possible, using chemical engineering sustainable processes, and how it may contribute to the reduction of the pollution and to the reduction of waste production.

scholarly journals An Overview of Difficulties in Controlling Intensified Process

2007 ◽  
Vol 7 (1 & 2) ◽  
pp. 8
Author(s):  
Reza Barzin ◽  
Syamsul Rizal Abd Shukor ◽  
Abdul Latif Ahmad
Keyword(s):  
Chemical Engineering ◽  
Process Intensification ◽  
Dynamic Interaction ◽  
Engineering Industry ◽  
Chemical Plants ◽  
Control Loop ◽  
Process Technology ◽  
Unit Operations ◽  
Potential Problems ◽  
Production Objectives

Process intensification (PI) is currently one of the most significant trends in chemical engineering and process technology. PI is a strategy of making dramatic reductions in the size of unit operations within chemical plants, in order to achieve production objectives. PI technology is able to change dramatically the whole chemical engineering industry pathway to a faster, cleaner and safer industry. Nonetheless, PI technology will be handicapped if such system is not properly controlled. There are some foreseeable problems in order to control such processes for instance, dynamic interaction between components that make up a control loop, response time of the instrumentations, availability of proper sensor and etc. This paper offers an overview and discussion on identifying potential problems of controlling intensified systems.

scholarly journals On Rapid Development of Reactive Wireless Sensor Systems

2019 ◽  
Vol 1 (1) ◽  
pp. 574-582
Author(s):  
Paweł Gburzyński ◽  
Elżbieta Kopciuszewska
Keyword(s):  
Operating System ◽  
Software Development ◽  
Programming Language ◽  
Independent Living ◽  
Rapid Development ◽  
Wireless Sensor ◽  
Sensors And Actuators ◽  
Execution Platform ◽  
Small Footprint ◽  
Set Up

AbstractWe present a software platform for designing and testing wireless networks of sensors and actuators (WSNs). The platform consists of three components: an operating system for small-footprint microcontrollers (dubbed PicOS), a software development kit (SDK) amounting to a C-based, event-oriented (reactive) programming language, and a virtual execution platform (VUE2) capable of emulating complete deployment environments for WSNs and thus facilitating their rapid development.1 Its most recent incarnation introduced in the present paper is a component of the WSN lab being currently set up at Vistula in collaboration with Olsonet Communications Corporation.2 We highlight the platform’s most interesting features within the context of a production WSN installed at independent-living facilities.

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