scholarly journals Estimating Reliability Bounds on Industrial Plants

2016 ◽  
Author(s):  
Andreas M. Hein ◽  
Romain Farel
Keyword(s):  
Linear Programming ◽  
Reliability Analysis ◽  
Business Models ◽  
Industrial Plant ◽  
Test Case ◽  
Industrial Plants ◽  
Reliability Bounds ◽  
Reliability Bound ◽  
Whole Plants ◽  
Future Work

Reliability analysis is particularly relevant for industrial plants where plant failures can lead to large financial losses. Existing reliability analysis approaches mostly rely on heavy-weight simulations that are computationally expensive and require extensive modeling effort. On the other hand, there is an industrial need for quickly evaluating plant reliability for developing new services and business models. In this paper, we extend and apply the reliability bound approach using linear programming to address this need. The reliability bound approach is based on a system model in the form of a graph, an event vector, and estimates for component reliabilities. Based on this model, lower and upper reliability bounds are calculated by solving a linear programming problem. The advantage of this approach is the ubiquity of solvers for linear programming. Furthermore, the approach is guaranteed to produce the narrowest bound with respect to the reliability data. We demonstrate the applicability of the approach to a subsystem of an industrial plant as a test case. Future work consists applying the method to whole plants and comparing the results with simulation-based approaches. Moreover, the approach is planned to be extended to system attributes such as buffers and multiple failure states.

scholarly journals A Data- and Knowledge-Driven Methodology for Generating Eco-Industrial Park Architectures

2016 ◽  
Author(s):  
Andreas M. Hein ◽  
Marija Jankovic ◽  
Romain Farel ◽  
Bernard Yannou
Keyword(s):  
Supply And Demand ◽  
Industrial Process ◽  
Initial Step ◽  
Industrial Plant ◽  
Industrial Park ◽  
Industrial Symbiosis ◽  
Industrial Plants ◽  
Industrial Parks ◽  
Industrial Zones ◽  
Future Work

Industrial symbiosis can be understood as the substitution of new resources used in an industrial process by another resource that would otherwise be discarded. Industrial symbiosis can thereby create new revenue streams and at the same time reduce environmental impact. The initial step in creating an industrial symbiosis is the identification of potential substation relationships between production plants. This step is challenging, as information about the companies is often not available. Several software tools have been developed in order to identify potential symbiosis opportunities. However, these tools have the shortcoming that they require extensive data input from companies owning the production plants. This requirement limits the number of companies for which symbiosis opportunities are identified. In this paper, we propose a data-driven methodology for identifying industrial symbiosis and generating eco-industrial park architectures. The methodology is based on meta-models of industrial plants for identifying plant attributes for certain types of plants, correlations that estimate the rough amount of resource supply and demand of a plant, and a rule-based system that identifies symbiosis opportunities based on knowledge from successful symbioses. Based on the symbiosis opportunities, approach generates eco-industrial park architectures that are optimal in terms of economic and environmental performance. Finally, we apply the methodology to a case study of the existing Kalundborg eco-industrial park to evaluate if the methodology is capable of finding existing symbioses. We conclude that the methodology can be applied to screening industrial zones with standard types of industrial plants. However, the results depend on the types of existing industrial plant meta-models in the database. Future work will focus on extending the data and knowledge base; and validating the methodology by its application to other existing eco-industrial parks.

scholarly journals Carsharing: a systematic literature review and research agenda

2021 ◽  
Vol 32 (6) ◽  
pp. 55-91
Author(s):  
Brenda Nansubuga ◽  
Christian Kowalkowski
Keyword(s):  
Literature Review ◽  
Business Models ◽  
Theory And Practice ◽  
Service Research ◽  
Policy Makers ◽  
Content Type ◽  
Customer Base ◽  
State Of Research ◽  
Systematic Selection ◽  
Future Work

PurposeFollowing the recent surge in research on carsharing, the paper synthesizes this growing literature to provide a comprehensive understanding of the current state of research and to identify directions for future work. Specifically, this study details implications for service theory and practice.Design/methodology/approachSystematic selection and analysis of 279 papers from the existing literature, published between 1996 and 2020.FindingsThe literature review identified four key themes: business models, drivers and barriers, customer behavior, and vehicle balancing.Practical implicationsFor managers, the study illuminates the importance of collaboration among stakeholders within the automotive sector for purposes of widening their customer base and maximizing utilization and profits. For policy makers, their important role in supporting carsharing take-off is highlighted with emphasis on balancing support rendered to different mobility services to promote mutual success.Originality/valueThis is the first systematic multi-disciplinary literature review of carsharing. It integrates insights from transportation, environmental, and business studies, identifying gaps in the existing research and specifically suggesting implications for service research.

An Intelligent Interactive Layout CAD System for Industrial Plants

1990 ◽  
Author(s):  
Ken-ichi Kameyama ◽  
Koichi Kondo ◽  
Koichi Ohtomi
Keyword(s):  
Industrial Plant ◽  
Production Rules ◽  
Design Environment ◽  
Plant Layout ◽  
Industrial Plants ◽  
Major Function ◽  
Cad System ◽  
Constraint Checking ◽  
Data Updating ◽  
Interactive User

Abstract This paper describes an industrial plant layout system with an intelligent interactive user-interface. This system offers a powerful design environment, in which a designer can concurrently draw and check a layout plan, which can not be realized on a conventional plant layout CAD system. The major function of the system is the automatic constraint checking of each designer’s drafting action. This function is achieved by the integration of a geometric modeler, frame representation, and production rules. The geometric modeler is used for extracting the information for data updating and constraint checking from graphical objects, which are directly manipulated by a designer. Frame representation is used for representing the attributes of the equipments and the areas, and these attributes are handled by production rules. Production rules are used for representing the constraint checking and data updating procedures, and can be executed as required.

Through Harmonization of National Technical Regulations to More Sustainability in Engineering Business

2019 ◽  
pp. 263-288
Author(s):  
Julia Krause
Keyword(s):  
Business Models ◽  
Sustainable Business ◽  
Industrial Plants ◽  
Sustainable Engineering ◽  
Cost Inefficiency ◽  
Sustainable Business Models ◽  
Development Goals ◽  
The One ◽  
Globalized World ◽  
Technical Regulations

This chapter provides readers with specifics of complexity in engineering, delivering, and constructing of industrial plants while working in different countries. Export-oriented companies in mechanical and plant engineering businesses with long supply chains face huge challenges in considering different technical requirements for different types of equipment and for different services and procedures they provide, which lead to time and cost inefficiency. In modern times with different economic, social, and environmental requirements on the one hand and challenges caused by globalization, digitalization, and worldwide climate change; on the other, it is vital to find the ways for more sustainable project management and sustainable business models and to inspire global players to consider sustainability development goals and to become an innovator to drive the others: the suppliers, the clients, and other stakeholders. The first step towards sustainable engineering processes in the globalized world is the harmonization of technical regulations worldwide.

scholarly journals The development of small settlements in the industrial plant - city model - based on the examples of Nowa Dęba and Nowa Sarzyna

2018 ◽  
Vol 45 ◽  
pp. 00079 ◽  
Author(s):  
Anna Sikora
Keyword(s):  
Industrial Plant ◽  
Urban Centers ◽  
Small Cities ◽  
Industrial Facilities ◽  
Industrial Plants ◽  
Spatial Changes ◽  
City Model ◽  
Post War ◽  
Time Specific ◽  
Over Time

Double-purpose industrial plant-settlement complexes (city) are fairly popular urban combinations; especially so during the inter-war and post-war industrial periods, when through a decision by the central authorities, industrial facilities were located in specific areas which were then developed over time. Specific cases of such complexes are two small cities built from scratch around growing industrial plants. The article presents certain functional and spatial changes in two urban centers: Nowa Dęba and Nowa Sarzyna, which are located in the Subcarpathian Voivodeship.

Tri-Generation Systems Optimization: Comparison of Heuristic and Mixed Integer Linear Programming Approaches

2014 ◽  
Author(s):  
Aldo Bischi ◽  
Stefano Campanari ◽  
Alberto Castiglioni ◽  
Giampaolo Manzolini ◽  
Emanuele Martelli ◽  
...  
Keyword(s):  
Linear Programming ◽  
Integer Linear Programming ◽  
Mixed Integer Linear Programming ◽  
Storage System ◽  
Simulation Models ◽  
Point Of View ◽  
Mixed Integer ◽  
Test Case ◽  
Optimization Strategy ◽  
Software Codes

This work compares two optimization approaches for combined cooling, heating and power (CCHP or Tri-generation) energy systems scheduling. Both approaches are developed through dedicated software codes and are based on simulation models capable of evaluating of the best operating strategy (both economically and energy-wise) to run a given trigeneration plant while dealing with time-variable loads and tariffs. The simultaneous use of different prime movers operating in parallel is taken into consideration as well as their part load performance, the influence of ambient temperature and the usage of a heat storage system. Cooling may be generated through absorption chillers or electrically driven compression cycles. One of the models is heuristic and adopts an optimization strategy based on a multi-step approach: it simulates several cases according to a pre-defined number of paths, exploring the most reasonable operational modes and comparing them systematically. The other relies on a mathematical approach, based on a Mixed Integer Linear Programming (MILP) optimization model which has been developed in order to deal with more complex systems without the need of predefining a too large variety of operation paths. Results of the two models are compared against a test case based on real plant specifications, discussing their performance by the point of view of simulation capabilities, quality and accuracy of the optimization results (in terms of differences in energy and economic performance) and computational resources.

How Does Sedimentary Layering Affect the Generation of Tsunamis?

2009 ◽  
Author(s):  
Denys Dutykh ◽  
Fre´de´ric Dias
Keyword(s):  
Half Space ◽  
Hard Rock ◽  
Test Case ◽  
Sediment Layer ◽  
Sedimentary Deposits ◽  
Vertical Displacements ◽  
Generation Region ◽  
Sediment Layers ◽  
Parameter Values ◽  
Future Work

This article presents preliminary results on the influence of sediment layers on the process of tsunami generation. The main scope here is to demonstrate and especially quantify the effect of sedimentation on vertical displacements of the seabed due to an underwater earthquake. The effects in the far field are left for future work. The elastodynamics equations are integrated with a finite element method and the fault is modelled as a dislocation in a half-space. A comparison between two cases is performed. The first one corresponds to the classical situation of an elastic homogeneous and isotropic half-space, which is traditionally used for the generation of tsunamis. The second test case takes into account the presence of a sediment layer separating the oceanic column from the hard rock. Some important differences are revealed. We conjecture that deformations in the generation region may be amplified by sedimentary deposits, at least for some parameter values. The mechanism of amplification is studied through careful numerical simulations.

EFFECTS OF OIL POLLUTION ON INDUSTRIAL WATER INTAKES1

1989 ◽  
Vol 1989 (1) ◽  
pp. 473-478
Author(s):  
J. A. Nichols ◽  
H. D. Parker
Keyword(s):  
Coastal Waters ◽  
Oil Spills ◽  
Oil Pollution ◽  
Industrial Plant ◽  
Industrial Plants ◽  
Power Stations ◽  
Different Types ◽  
Flash Distillation ◽  
Desalination Plants ◽  
The Impact

ABSTRACT Oil spills in coastal waters sometimes give rise to concerns that oil may become entrained in the seawater intakes of power stations, desalination units, and other industrial plants. This paper reviews the findings of an investigation, undertaken by the International Tanker Owners Pollution Federation and Sir M. MacDonald & Partners, on the effects of oil pollution on water-cooled electricity-generating stations and desalination plants using multistage flash distillation and reverse osmosis. The various components that could be contaminated by oil are described and, using case studies wherever possible, the effects on equipment, heat transfer surfaces, and potable water are discussed. Finally considered are various methods of minimizing the impact of oil and financial implications of oil contamination for the different types of industrial plant.

An Error-Cause Removal Program for Industry

1973 ◽  
Vol 15 (3) ◽  
pp. 207-221 ◽  
Author(s):  
Alan D. Swain
Keyword(s):  
Industrial Plant ◽  
Human Errors ◽  
Industrial Plants ◽  
Worker Participation ◽  
Participation Program

This paper describes a worker-participation program to reduce human errors in an industrial plant to an acceptable minimum. It gives suggestions for initiating and carrying out the program and includes experiences of some industrial plants using worker-participation programs.

Minimum Test Case for Discrete-Type Software Reliability Testing by Stratified Sampling

2012 ◽  
Vol 263-266 ◽  
pp. 1874-1879
Author(s):  
Qiu Ying Li ◽  
Lei Luo
Keyword(s):  
Software Reliability ◽  
Traditional Approach ◽  
Simple Random Sampling ◽  
Stratified Sampling ◽  
Necessary Condition ◽  
Test Case ◽  
Test Cases ◽  
Operational Profile ◽  
Future Work ◽  
Discrete Type

The traditional approach for generating software reliability test cases according to operational profile (OP) can be regarded as a simple random sampling. The stratified sampling is a complex but more accurate sampling approach which can make the sampling results more accurate and less variance by dividing the population into several subsets and randomly sampling from each subset respectively. Firstly, this paper introduced the traditional method which can be used to determine the number of test cases in the discrete-type software reliability demonstration testing. Secondly, the necessary condition for the minimum test case based on the stratified sampling was studied. Then a new approach was proposed and its principle was analyzed for determining the minimum test case of the discrete-type software by using the stratified sampling. Finally, the future work was discussed.

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