Reliability, availability and maintainability analysis of a cement plant: a case study

2019 ◽  
Vol 36 (3) ◽  
pp. 298-313 ◽  
Author(s):  
Devendra Choudhary ◽  
Mayank Tripathi ◽  
Ravi Shankar
Keyword(s):  
Preventive Maintenance ◽  
Capacity Utilization ◽  
Point Of View ◽  
Trend Test ◽  
Cement Plant ◽  
Maintenance Policy ◽  
Content Type ◽  
Ram Analysis ◽  
Critical Subsystems

Purpose The demand of cement in India is expected to increase rapidly as the government has been giving immense boost to various housing facilities, infrastructure projects, road networks and railway corridors. One of the ways to meet this rise in the demand of cement is to increase the capacity utilization of the existing cement plants by improving their availability. The availability of a cement plant can be improved by avoiding failures and reducing maintenance time through reliability, availability and maintainability (RAM) analysis of its subsystems. The paper aims to discuss this issue. Design/methodology/approach The data related to time between failure (TBF) and time to repair (TTR) of all the critical subsystems of a cement plant were collected over a period of two years for carrying out RAM analysis. Trend test and serial correlation test were performed on TBF and TTR data to verify whether these data are independent and identically distributed or not. Afterwards, the authors use EasyFit 5.6 professional software to find best-fit distribution of TBF and TTR data and their parameters. The effectiveness of a preventive maintenance policy was evaluated by simulating the real and proposed systems. Findings The results of the analysis show that the raw mill and the coal mill are critical subsystems of a cement plant from a reliability point of view, whereas the kiln is a critical subsystem from an availability point of view. The analysis shows that the repair time of the cement mill should be reduced for improving the availability of the cement plant. The RAM analysis showed that the capacity of the case study company is 17 percent underutilized due to maintenance-related problems and 15 percent underutilized because of management-related problems. Practical implications The study exhibits the usage of RAM analysis in deciding preventive maintenance programs of several cement plant subsystems. Thus, it would serve as a reference for reliability and maintenance managers in deciding maintenance strategies of cement plants as well as in improving their capacity utilization. Originality/value The study exhibits the usage of RAM analysis in deciding preventive maintenance programs of several cement plant subsystems. Even more, using a simulation study, the authors show that preventive maintenance of the cement plant beyond a certain level can be disadvantageous as it leads to an increase in downtime and decrease in availability.

A deliberately emergent strategy – a key to successful city branding

2015 ◽  
Vol 8 (2) ◽  
pp. 90-102 ◽  
Author(s):  
Janne Lindstedt
Keyword(s):  
Place Branding ◽  
Place Identity ◽  
Point Of View ◽  
City Branding ◽  
Content Type ◽  
Emergent Strategy ◽  
Branding Strategies ◽  
Local Stakeholders ◽  
Place Brand

Purpose – The paper aims to address a neglected issue in the literature on place brand co-creation, namely, the strategic planning of the branding process. Furthermore, the paper demonstrates the benefits of a deliberately emergent strategy. Design/methodology/approach – A qualitative case study focusing on Turku, Finland, supports the development of the argument. In this study, branding of Turku is examined both during the European Capital of Culture 2011 (ECoC) project and after it. Findings – The contribution of the ECoC 2011 project – which was widely perceived as a success – to Turku’s brand was based on a deliberately emergent strategy. Afterwards, the local government has, however, chosen a different approach to branding. Research limitations/implications – Given the increasing popularity of brand thinking among practitioners all over the world, it would be meaningful for scholars to pay more attention to the application of brand co-creation in place branding strategies. Practical implications – The deliberately emergent branding strategy could be considered an approach to applying the idea of brand co-creation in practice. It enables local stakeholders to make their voices heard and results in increased credibility of a branding process. Originality/value – Place brand co-creation has not yet been examined from strategic planning’s point of view. The need for this kind of examination is apparent, because branding strategies have traditionally been based on the idea of static place identity. The Turku case helps to propose a solution in terms of the notion of deliberately emergent branding.

The combination of different open innovations: a longitudinal case study

2019 ◽  
Vol 13 (2) ◽  
pp. 342-362
Author(s):  
Xiaodong Yuan ◽  
Xiaotao Li
Keyword(s):  
New Product Development ◽  
Open Innovation ◽  
Point Of View ◽  
Longitudinal Case Study ◽  
Key Factors ◽  
Content Type ◽  
Strategic Direction ◽  
Different Types ◽  
Innovation Capacity

Purpose The purpose of this paper is to explore how an organization can combine different types of open innovations and what are the key factors that may influence the combination of different open innovations. Design/methodology/approach The basic methodology of this paper is the longitudinal inductive analysis within the conceptual framework of the open innovation proposed by Dahlander and Gann (2010). In this case study of Xiaomi Tech Inc., the open innovation combination is investigated through examining 25 new products created between August 2010 and December 2016 in terms of four general types: acquiring, sourcing, selling and revealing open innovation. Findings In practice, the combination of different types of open innovations can be realized. A firm may combine different open innovations at three levels: a single product level, a related product cluster level and a company level. In addition, different open innovations can be combined in diverse modes. The purpose of combining different types of open innovations is to overcome the disadvantages of each type and to exploit the advantages of all different types. Many factors may affect a firm’s option of how to combine open innovations. At different development stages, a firm may make and implement corresponding strategic direction based on its innovation capacity and internal resource. For a given strategy, the firm needs to create profits and manage intellectual property in the implementation of open innovations. These factors are interacted each other, rather than isolated. Originality/value The findings of this paper are helpful for better understanding how and why an organization can combine different types of open innovations. From a managerial point of view, an organization may combine different types of open innovations to leverage advantages and avoid disadvantages of each certain type of open innovation. An appropriate combination of different open innovations can effectively improve new product development.

The role of maintenance in improving company's competitiveness and profitability

2014 ◽  
Vol 25 (4) ◽  
pp. 441-456 ◽  
Author(s):  
Damjan Maletič ◽  
Matjaž Maletič ◽  
Basim Al-Najjar ◽  
Boštjan Gomišček
Keyword(s):  
Gap Analysis ◽  
Research Problem ◽  
Maintenance Policy ◽  
Content Type ◽  
Potential Benefits ◽  
Points Of View ◽  
Potential Improvement ◽  
Practical Implications

Purpose – The purpose of this paper is to examine the role of maintenance in improving company's competitiveness and profitability. In the first part the paper aims to discuss the potential improvement areas from the company perspective. Second part of this paper examines maintenance impact on company's business. Design/methodology/approach – An empirical case study was utilized aiming to provide an understanding of the role of maintenance in improving company's business. The empirical data for this study were collected from a Slovenian textile company. A gap analysis was used in order to address the research problem and to identify potential improvement areas. Findings – Based on the gap analysis, the results suggest that from respondents’ points of view, maintenance practices related to condition-based maintenance approach represent the highest opportunity for improvement. The most notable empirical results of the case study showed that around 3 per cent of additional profit could be generated at weaving machine, especially if all unplanned stoppages and loss of quality due to decrease in the productivity would be prevented. Practical implications – This paper demonstrates to managers the potential benefits of maintenance policy in terms of productivity, quality and profitability. In this regard, this paper builds on a premise that company can gain higher performance benefits using more effective maintenance policy. Originality/value – The proposed conceptual model contributes to the existing literature by showing the interactions between maintenance and company's competitiveness and profitability. Empirical findings of this study therefore, acknowledge maintenance's potential of increasing the overall profit. In addition this study advances prior studies by utilizing a gap analysis which is rare in this type of research.

scholarly journals The drivers of omni-channel shopping intention: a case study for fashion retailing sector in Danang, Vietnam

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Thi Hieu Hanh Truong
Keyword(s):  
Design Methodology ◽  
Recent Literature ◽  
Theoretical Perspective ◽  
Point Of View ◽  
Content Type ◽  
Customer Perception ◽  
Channel Strategy ◽  
Retail Setting ◽  
Managerial Perspective

PurposeThe purpose of this paper is to look into the mechanism in which customers involve themselves in omni-channel retail setting and use its advantages.Design/methodology/approachVia an empirical analysis through surveying customers, this paper assesses and confirms the drivers of omni-channel shopping intention within the context of fashion retailing sector in Danang.FindingsThe findings highlight the significance of customer perception of research shopping (including showrooming and webrooming) behaviours, compatibility and risk to their intention towards omni-channel shopping, implying profound understanding of designing effective omni-channel retailing strategy.Originality/valueFrom a theoretical perspective, comprehending customer perception of the omni-channel concept has emerged as an important theme in recent literature as well as in practitioners' reports. Hence, the meaningful contribution of this study is the involvement in the attractive steam of study. From a managerial perspective, this study could offer guidance to retailers or managers about developing a successful omni-channel strategy from a customer point of view.

scholarly journals A decision support system to assure high-performance maintenance service

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Giuseppe Aiello ◽  
Julio Benítez ◽  
Silvia Carpitella ◽  
Antonella Certa ◽  
Mario Enea ◽  
...  
Keyword(s):  
Decision Support ◽  
Decision Support System ◽  
Support System ◽  
Preventive Maintenance ◽  
Programming Model ◽  
Laboratory Method ◽  
Maintenance Management ◽  
Maintenance Policy ◽  
Content Type ◽  
Blockchain Technology

PurposeThis study aims to propose a decision support system (DSS) for maintenance management of a service system, namely, a street cleaning service vehicle. Referring to the information flow management, the blockchain technology is integrated in the proposed DSS to assure data transparency and security.Design/methodology/approachThe DSS is designed to efficiently handle the data acquired by the network of sensors installed on selected system components and to support the maintenance management. The DSS supports the decision makers to select a subset of indicators (KPIs) by means of the DEcision-MAaking Trial and Evaluation Laboratory method and to monitor the efficiency of performed preventive maintenance actions by using the mathematical model.FindingsThe proposed maintenance model allows real-time decisions on interventions on each component based on the number of alerts given by sensors and taking into account the annual cost budget constraint.Research limitations/implicationsThe present paper aims to highlight the implications of the blockchain technology in the maintenance field, in particular to manage maintenance actions’ data related to service systems.Practical implicationsThe proposed approach represents a support in planning, executing and monitoring interventions by assuring the security of the managed data through a blockchain database. The implications regard the monitoring of the efficiency of preventive maintenance actions on the analysed components.Originality/valueA combined approach based on a multi-criteria decision method and a novel mathematical programming model is herein proposed to provide a DSS supporting the management of predictive maintenance policy.

On preventive maintenance policies: a selection framework

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Imad Alsyouf ◽  
Sadeque Hamdan ◽  
Mohammad Shamsuzzaman ◽  
Salah Haridy ◽  
Iyad Alawaysheh
Keyword(s):  
Preventive Maintenance ◽  
Fuzzy Ahp ◽  
Critical Component ◽  
Multi Objective Optimization ◽  
Maintenance Policy ◽  
Coolant Pump ◽  
Content Type ◽  
Multi Objective ◽  
Maintenance Policies ◽  
Preventive Maintenance Policy

PurposeThis paper develops a framework for selecting the most efficient and effective preventive maintenance policy using multiple-criteria decision making and multi-objective optimization.Design/methodology/approachThe critical component is identified with a list of maintenance policies, and then its failure data are collected and the optimization objective functions are defined. Fuzzy AHP is used to prioritize each objective based on the experts' questionnaire. Weighted comprehensive criterion method is used to solve the multi-objective models for each policy. Finally, the effectiveness and efficiency are calculated to select the best maintenance policy.FindingsFor a fleet of buses in hot climate environment where coolant pump is identified as the most critical component, it was found that block-GAN policy is the most efficient and effective one with a 10.24% of cost saving and 0.34 expected number of failures per cycle compared to age policy and block-BAO policy.Research limitations/implicationsOnly three maintenance policies are compared and studied. Other maintenance policies can also be considered in future.Practical implicationsThe proposed methodology is implemented in UAE for selecting a maintenance scheme for a critical component in a fleet of buses. It can be validated later in other Gulf countries.Originality/valueThis research lays a solid foundation for selecting the most efficient and effective preventive maintenance policy for different applications and sectors using MCDM and multi-objective optimization to improve reliability and avoid economic loss.

Pre-event marketing and territorial governance: the case of Monza and Brianza province

2016 ◽  
Vol 19 (2) ◽  
pp. 173-203 ◽  
Author(s):  
Laura Gavinelli ◽  
Maria Cristina Morra ◽  
Angelo Di Gregorio
Keyword(s):  
Marketing Mix ◽  
Point Of View ◽  
Multiple Sources ◽  
Public And Private ◽  
Content Type ◽  
Event Marketing ◽  
Managerial Implications ◽  
A Minor ◽  
Mega Event

Purpose The purpose of this paper is to examine whether and how a mega event can be an opportunity for a territory to be developed as a marketing product. The topic is analysed in the pre-event phase, from the point of view of marketing mix and governance. Design/methodology/approach A qualitative method was adopted with a case study on Monza and Brianza province (northern Italy) which is strongly involved in EXPO2015 initiatives. The triangulation among multiple sources such as documents, interviews and observation, allow for deeper data collection. Findings A mega event can enhance development and repositioning also of minor territories. There are, however, two main conditions for benefiting from such an opportunity: to plan the marketing mix, taking into account people and partnerships, and to ensure a vision on territory through coordination with a legacy perspective. Research limitations/implications This study is not representative or generalizable. However, it gives insights into the mechanism of coordination and collaboration between different stakeholders and on how to plan the Monza and Brianza marketing mixes. Practical implications The research has implications for governance mechanisms and for marketing politics both for public and private decision-makers, especially in the pre-mega event phase, but also with some inputs into legacy phase. Originality/value The research is original for three reasons: the context concerns Monza and Brianza province, and so can help understand how mega events can help a minor territory reposition itself; the research looks at the managerial implications of place marketing in this pre-event phase; and in Italy, provinces are being reorganized or abolished: this case study looks at a province and its future.

Naini Papers: capacity dilemma

2017 ◽  
Vol 7 (1) ◽  
pp. 1-22
Author(s):  
Kunal K. Ganguly ◽  
Siddharth Rai
Keyword(s):  
Operations Management ◽  
Capacity Planning ◽  
Capacity Utilization ◽  
Subject Area ◽  
Content Type ◽  
The Subject ◽  
A Company ◽  
Alternative Operations ◽  
Idle Capacity

Subject area The subject area of the case is operations management and capacity planning. The case adopts different operation strategies to use the idle capacity. Study level/applicability The case study is suitable for discussion in masters level classes. The case explains the situation of a company which is fighting for its survival. The case reveals the alternative operations strategies it applies to maximize its capacity utilization and reduce its costs. Case overview The case describes a paper producing company which is earning low margins. The company’s capacity remains unused during the off-seasons. The company then plans to share its capacity with another dying industry. Both the companies plan to cooperate and share resources. However, there are other attractive alternatives too and the dilemma situations leave the gap for continuous discussions. Expected learning outcomes The case aims at providing potential alternatives to the students and initiating healthy discussions. The students will be able to understand the capacity utilization dilemmas and applicability of the operations strategy concept in practice. Supplementary materials Teaching notes are available for educators only. Please contact your library to gain login details or email [email protected] to request teaching notes. Subject code CSS 9: Operations and Logistics.

Managing the women managers: a case study of paper bag makers

2015 ◽  
Vol 5 (2) ◽  
pp. 1-17
Author(s):  
Anupma Srivastava ◽  
Amita Marwha
Keyword(s):  
Women Workers ◽  
Human Resource ◽  
Informal Sector ◽  
Urban Poor ◽  
Subject Area ◽  
Point Of View ◽  
Content Type ◽  
The World ◽  
Management Students

Subject area Human resource management. Study level/applicability It is appropriate for graduate students majoring in human resource or business management. Students who are interested in studying Asian economies in the world, as they are the most growing economies in the world and at the same time have a shocking number of people employed in the informal sector. Case overview This case study talks about women workers who face a glass ceiling at the management level and deplorable working conditions at the informal level. This case involves women in the paper bag-making business, a part of the urban informal sector. The paper bag-making business provides employment and income generation for the urban poor. The focus in this study is on women production workers, rather than entrepreneurs or professional managers. Focus of the study will be on the change in the pattern of income distribution within the family-based household, the degree of bargaining power derived from productive work and income and impact of technology on the plight of unskilled women force and how technology and vocational training can lead to utilization of manpower being wasted because of lack of synergy between technology and the informal sector in India. Expected learning outcomes Four key points of selection, training, assessment and leadership all have been addressed in this case study, and the relevance of these points is important from the point of view of management students who have to understand the linkages and the hidden costs these informal sector occupations come with and then to device an appropriate strategy to bring and use these human resources to their full capacity by utilizing the existing resources instead of adding new ones, which in development economics is known as Solow residual. Supplementary materials Teaching notes are available for educators only. Please contact your library to gain login details or email [email protected] to request teaching notes.

Risk indicators for managing the energy procurement process

2015 ◽  
Vol 64 (2) ◽  
pp. 228-242
Author(s):  
Chiara Verbano ◽  
Maria Crema
Keyword(s):  
Price Volatility ◽  
Point Of View ◽  
Risk Indicators ◽  
Risk Exposure ◽  
High Price ◽  
Energy Prices ◽  
Content Type ◽  
Procurement Process ◽  
Energy Companies

Purpose – Energy commodities are characterised by rigid demand and high price volatility, linked to many variables such as climate factors, exchange rates, availability of resources. At the same time, the authorities often set prices, so wholesale energy companies need to create margins carefully by managing the procurement process and selecting appropriate tools to manage the risks associated with the volatility of energy prices. The purpose of this paper is to analyse and evaluate price and volume risks in the energy procurement process considering a “non-speculative” point of view, which is understudied in the literature review. Design/methodology/approach – The paper adopts a quantitative approach to risk evaluation, based on accounting indicators, and applies it to a large Italian energy wholesale company. Findings – A set of key risk indicators to measure price and volume risks is presented in the results, split into synthesis risk, unbalanced risks, modulation risks and risks derived from bilateral contracts. These indicators are applied to the case study, and each risk is prioritised and discussed. Originality/value – This contribution is one of the first attempts to analyse energy procurement risks in a non-speculative approach. The proposed method allows: first, to evaluate and prioritise the three major types in the energy procurement process, second, to observe the trend of risk exposure, third, the performance measurement of the procurement process, and fourth, benchmarking activities if widely implemented in the energy sector.

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