scholarly journals Studying the Role of System Aggregation in Energy Targeting: A Case Study of a Swedish Oil Refinery

Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 958 ◽  
Author(s):  
Elin Svensson ◽  
Matteo Morandin ◽  
Simon Harvey ◽  
Stavros Papadokonstantakis
Keyword(s):  
Heat Exchange ◽  
Heat Recovery ◽  
Process Integration ◽  
Heat Integration ◽  
Direct Process ◽  
Utility System ◽  
Process Heat ◽  
Definition Of

The definition of appropriate energy targets for large industrial processes is a difficult task since operability, safety and plant layout aspects represent important limitations to direct process integration. The role of heat exchange limitations in the definition of appropriate energy targets for large process sites was studied in this work. A computational framework was used which allows to estimate the optimal distribution of process stream heat loads in different subsystems and to select and size a site wide utility system. A complex Swedish refinery site is used as a case study. Various system aggregations, representing different patterns of heat exchange limitations between process units and utility configurations were explored to identify trade-offs and bottlenecks for energy saving opportunities. The results show that in spite of the aforementioned limitations direct heat integration still plays a significant role for the refinery energy efficiency. For example, the targeted hot utility demand is reduced by 50–65% by allowing process-to-process heat exchange within process units even when a steam utility system is available for indirect heat recovery. Furthermore, it was found that direct process heat integration is motivated primarily at process unit level, since the heat savings that can be achieved by allowing direct heat recovery between adjacent process units (25–42%) are in the same range as those that can be obtained by combining unit process-to-process integration with site-wide indirect heat recovery via the steam system (27–42%).

The role of character in talent identification and development in New Zealand rugby union

2019 ◽  
Vol 14 (3) ◽  
pp. 406-418
Author(s):  
Ryan Rosevear ◽  
Tania Cassidy
Keyword(s):  
New Zealand ◽  
Rugby Union ◽  
Talent Identification ◽  
Systems Model ◽  
A Value ◽  
Universal Definition ◽  
Definition Of ◽  
Development Manager

The purpose of the study was to gain understanding of how character is understood in the New Zealand Rugby (NZR) ecology and how the Player Development Manager (PDM) in one Provincial Union (PU) negotiates, constructs and operationalizes interpretations of character within talent identification and development practices. The study design was informed by Bronfenbrenner’s ecological systems model of development and the methodology was case study. The participant in the study was the PDM who worked for one provincial rugby union and NZR. Data was gained using; interviews, document analysis and observations. An iterative strategy was employed when adopting the deductive and inductive analysis. The study found that across the NZR ecology there was no universal definition of character, or set of criteria used to assess players’ character. Within the NZR macrosystem there were formal policies that explicitly identified character as a value to be assessed. Yet, implicit understandings and assessment of character also existed. The PDM working in a microsystem constructed his understanding and assessment of character based on his experiences working with, and for, NZR (macrosystem) and the PU (exosystem) respectively, as well as drawing on his personal value set. The findings of this study are significant not only for rugby, in New Zealand and elsewhere, but they are relevant and topical for any selector, recruitment agent or coach who implicitly and explicitly (de)selects participants based on character.

scholarly journals The dynamics of food fraud: The interactions between criminal opportunity and market (dys)functionality in legitimate business

2017 ◽  
Vol 17 (5) ◽  
pp. 605-623 ◽  
Author(s):  
Nicholas Lord ◽  
Cecilia Juliana Flores Elizondo ◽  
Jon Spencer
Keyword(s):  
Food System ◽  
Food Fraud ◽  
Organizational Settings ◽  
Legitimate Business ◽  
Common Definition ◽  
Business Structures ◽  
Criminal Opportunity ◽  
Definition Of

This article conceptualizes ‘food fraud’ by shifting analytical focus away from popular/policy conceptions foregrounding the centrality of organized crime towards understanding the factors that shape the organization of food frauds. We argue that food fraud, rather than being an ‘exogenous’ phenomenon perpetrated by externally organized (transnational) ‘criminal enterprise’, is better understood as an ‘endogenous’ phenomenon within the food system where legitimate occupational actors and organizations are in some way necessarily involved. Criminal opportunities arise under conducive conditions as part of legitimate actors’ routine behaviours. Our contention is that the common definition of food fraud is too prescriptive and fails to allow space to understand the role of different actors and their motivations. We analyse a case study in soft drinks, presenting the necessary role of legitimate, occupational actors within/between legitimate organizational settings and markets, and demonstrate how criminal behaviours can be concealed and disguised within ‘ready-made’ market and business structures.

scholarly journals Targeting heat recovery and reuse in industrial zone

2017 ◽  
Vol 23 (1) ◽  
pp. 73-82
Author(s):  
Milana Zaric ◽  
Mirko Stijepovic ◽  
Patrick Linke ◽  
Jasna Stajic-Trosic ◽  
Branko Bugarski ◽  
...  
Keyword(s):  
Heat Recovery ◽  
Fossil Fuels ◽  
Waste Heat ◽  
Minimum Energy ◽  
Heat Integration ◽  
Energy Integration ◽  
Industrial Zone ◽  
Decentralized System ◽  
Industrial Sectors ◽  
Utility System

In order to reduce the usage of fossil fuels in industrial sectors by meeting the requirements of production processes, new heat integration and heat recovery approaches are developed. The goal of this study is to develop an approach to increase energy efficiency of an industrial zone by recovering and reusing waste heat via indirect heat integration. Industrial zones usually consist of multiple independent plants, where each plant is supplied by an independent utility system, as a decentralized system. In this study, a new approach is developed to target minimum energy requirements where an industrial zone would be supplied by a centralized utility system instead of decentralized utility system. The approach assumes that all process plants in an industrial zone are linked through the central utility system. This method is formulated as a linear programming problem (LP). Moreover, the proposed method may be used for decision making related to energy integration strategy of an industrial zone. In addition, the proposed method was applied on a case study. The results revealed that saving of fossil fuel could be achieved.

scholarly journals The Socio-Political Role of Zombie Categories. A Case Study of the Referendum Amending Article 48 of The Romanian Constitution (6-7 October 2018)

2021 ◽  
pp. 1-7
Author(s):  
Georgeta Ghebrea
Keyword(s):  
Risk Society ◽  
Political Actors ◽  
The Public ◽  
Traditional Family ◽  
Political Role ◽  
Public Agenda ◽  
The Social ◽  
Definition Of

Our scope was to explain the failure of the Referendum on the revision of Article 48 of the Romanian Constitution, regarding the definition of family (held in 2018 and known as the "traditional family referendum"). We hypothesized that in Romania the traditional family has become a "zombie" category, unable to produce an authentic mobilization of the social-political actors. Still, the traditional family represents an anchor that counteracts insecurity and anxiety caused by the "risk society" in which we live. This function is capitalized by social-political actors as a source of their legitimation. Our understanding was based on the processual analysis of this issue on the public agenda, from inflammation to extinction. This analysis clearly showed the process of gradual demobilization of the actors involved.

scholarly journals All for One, One for All! From Events to Organizational Dynamics in Fluid Organization

M n gement ◽  
2021 ◽  
pp. 1-22
Author(s):  
Anthony Hussenot
Keyword(s):  
Frame Of Reference ◽  
The Other ◽  
Organizational Dynamics ◽  
Other Hand ◽  
Future Events ◽  
The One ◽  
Definition Of ◽  
Common Frame Of Reference

This article examines the emergence of organizational dynamics in the context of fluid organizational phenomena. To do so, three organizational dynamics are studied: (1) identity, (2) actorhood, and (3) interconnected instances of decision-making. To study how these three organizational dynamics take shape in the context of fluid organizational phenomena, I rely on the events-based approach and a case study of makers operating in a makerspace in the Paris region. The results show, on the one hand, that the collective of makers enacts a structure of past, present, and future events that participates in the definition of a common frame of reference and, on the other hand, that this common frame of reference plays a role in the emergence of organizational dynamics. On the basis of this result, my main contribution is to show the role of the eventalization – that is, the definition, configuration and narration by the actors of past, present, and future events – in the definition of organizational dynamics in fluid organizational phenomena. This article contributes on the one hand to the literature on fluid organizational phenomena, and on the other hand to the literature on makers working in makerspaces.

Book Reviews

2010 ◽  
Vol 48 (1) ◽  
pp. 156-157
Keyword(s):  
Expected Utility ◽  
Decision Under Uncertainty ◽  
Choquet Expected Utility ◽  
Von Neumann ◽  
Boston University ◽  
Principle Of Indifference ◽  
Definition Of

Barton L. Lipman of Boston University reviews “Theory of Decision under Uncertainty” by Itzhak Gilboa,. The EconLit Abstract of the reviewed work begins “Textbook for a graduate-level class in decision under uncertainty examines the classical axiomatic theories of decision under uncertainty and considers critiques and alternative theories. Discusses motivating examples; free will and determinism; the principle of indifference; relative frequencies; subjective probabilities; a case study; the role of theories; von Neumann-Morgenstern’s theorem; De Finetti’s theorem; Savage’s theorem; the definition of states; a critique of Savage; objectivity and rationality; Anscombe-Aumann’s theory; Choquet expected utility; prospect theory; maxmin expected utility; case-based qualitative beliefs; and frequentism revisited. Gilboa is Professor in the Berglas School of Economics at Tel-Aviv University and Professor in the Department of Economics and Decision Science at HEC Paris. Index.”

scholarly journals Review-based Emergy Analysis of Energy Production

2015 ◽  
Vol 2 ◽  
pp. 85
Author(s):  
Ginta Cimdina ◽  
Toms Prodanuks ◽  
Dagnija Blumberga ◽  
Ivars Veidenbergs
Keyword(s):  
Thermal Energy ◽  
Energy Production ◽  
Production Systems ◽  
Emergy Analysis ◽  
Use Of Resources ◽  
State Economy ◽  
Definition Of ◽  
Economical Feasibility

The role of power and thermal energy is impossible to overestimate in development of both state economy sector and everyday life of households. Importance is connected with use of resources, economical feasibility and effect to climate changes. The optimization of energy production allows to promote development of sustainable society. The most popular and efficient technologies for generation of power and thermal energy are cogeneration plants (CHP). Traditional evaluation methodologies of energy production systems are based on analysis of energy and mass balances as well as on cost analysis. It is not enough for assessment of complete sustainability of system. Necessary environmental impact assessment of energy production is possible to implement by use of emergy analysis. Definition of emergy includes one type of energy, which is used directly or indirectly to produce materials, provide services and finances. Emergy dimension is emjoules (seJ.). Paper presents case study of emergy analysis of different operation modes of one cogeneration plant.

scholarly journals From Cultural to Economic Capital: Community Employment Creation in Otara

1970 ◽  
Author(s):  
Anne De Bruin
Keyword(s):  
Formative Evaluation ◽  
Economic Capital ◽  
Small Scale ◽  
Employment Creation ◽  
Disadvantaged Community ◽  
Disadvantaged Communities ◽  
Mind Set ◽  
Definition Of

This paper stresses the need for community responses to the ethnic unemployment problem in New Zealand. It aims to show the potential for direct employment creation on the basis of a community entrepreneurship model as well as a widened definition of human capital, using case study of the labour market disadvantaged community of Otara, in South Auckland. Projects harnessing cultural and ethnic riches to create Otara as an attractive visitor destination undertaken by Enterprise Otara (EO) are examined. A participatory research methodology, chiefly formative evaluation is used. ·This paper seeks to break down a prevalent view that grassroots responses to unemployment are necessarily small-scale ventures and to get away from the 'small is beautiful' mind-set when Local Employment Initiatives (ILEs) are involved. Additionally, the collaborative role of 'outsiders ' in the 'bottom-up' approach to employment creation is shown to be important in 'getting things moving ' at the community level. Constraints faced by community organisations are highlighted. The importance of ILEs and the partnership concept in the mitigation of high unemployment in disadvantaged communities, is affirmed.

scholarly journals Crisis consultations as a component of political management

2018 ◽  
Vol 21 (7) ◽  
pp. 24-30
Author(s):  
S. V. Stavchenko
Keyword(s):  
Risk Management ◽  
Crisis Management ◽  
Strategy Development ◽  
Maximum Increase ◽  
Crisis Prevention ◽  
Political Management ◽  
Definition Of

It is determined that crisis consultations represent a set of measures aimed at stabilizing the situation of a particular subject, solving a set of problems associated with the maximum increase in the efficiency of the activity. The following types of crisis consultations are singled out: direct consultations of managers; implementation of advisory activities (consultations on emerging problems, diagnosis of the organization, definition of a crisis strategy, development of a plan of measures for crisis prevention, risk assessment and follow-up of its implementation, support of the organization during the implementation of the plan for crisis prevention, development of preventive measures in relation to avoidance of crisis phenomena); crisis reflexive games (training of managers and staff); case study review; use of benchmarking methods. The role of crisis analysis in conducting crisis consultations has been determined. It was emphasized that crisis analysis enables to prevent and plan possible crisis situations, ways of their neutralization and overcoming with minimal expenses for the organization. The role functions of crisis advisers are determined. The stages of crisis management (according to R. Heath) are revealed: prevention – prevention of crisis risks, analysis of losses for business; readiness – awareness of the probability of crises, staff training; salvation – drawing up plans, preventing consequences; recovery – recovery of effective production, assessment of the crisis. The types of crisis management are distinguished: preventive, aimed at analyzing the indicators of the crisis and identifying its causes and factors for timely prevention or minimization of possible crisis processes; an anticipatory, the essence of which is to develop goals and objectives for leadership in order to prevent crisis phenomena. A demarcation of crisis management and risk management has been conducted: if crisis management is primarily a process of responding to already existing serious threats to one or another organization or to events that have already occurred, risk management is associated with the process of identifying certain risks mainly for future activities organization, as well as the appropriate acceptance of these risks or their elimination.

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