Availability performance improvement by using autonomous maintenance – the case of a developing country, Zimbabwe
- Mugwindiri, Kumbi, Mbohwa, Charles
- Authors: Mugwindiri, Kumbi , Mbohwa, Charles
- Date: 2013
- Subjects: Autonomous maintenance - Zimbabwe , Performance improvement - Zimbabwe
- Type: Article
- Identifier: http://ujcontent.uj.ac.za8080/10210/373328 , uj:4867 , ISBN 978-988-19251-0-7 , http://hdl.handle.net/10210/12543
- Description: Autonomous Maintenance is an order winning paradigm shift maintenance philosophy which has operators that use machines personally conducting maintenance activities, including cleaning, oiling, retightening and inspection thereby raising production efficiency to its limit. Such activities prevent forced deterioration of equipment. This is because equipment can revert to systemic failure even after maintenance has been carried out if due regard to maintenance instructions is not adhered to. The savings accrued in routine operations and scheduling leads directly to large reductions in operations cost. This paper looks at how autonomous maintenance has a direct correlation with improving availability performance and hence profitability in the fertiliser industry in Zimbabwe.
- Full Text:
- Authors: Mugwindiri, Kumbi , Mbohwa, Charles
- Date: 2013
- Subjects: Autonomous maintenance - Zimbabwe , Performance improvement - Zimbabwe
- Type: Article
- Identifier: http://ujcontent.uj.ac.za8080/10210/373328 , uj:4867 , ISBN 978-988-19251-0-7 , http://hdl.handle.net/10210/12543
- Description: Autonomous Maintenance is an order winning paradigm shift maintenance philosophy which has operators that use machines personally conducting maintenance activities, including cleaning, oiling, retightening and inspection thereby raising production efficiency to its limit. Such activities prevent forced deterioration of equipment. This is because equipment can revert to systemic failure even after maintenance has been carried out if due regard to maintenance instructions is not adhered to. The savings accrued in routine operations and scheduling leads directly to large reductions in operations cost. This paper looks at how autonomous maintenance has a direct correlation with improving availability performance and hence profitability in the fertiliser industry in Zimbabwe.
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Cleaner production : theory and applications, case for Zimbabwe
- Mugwindiri, Kumbi, Mushiri, Tawanda
- Authors: Mugwindiri, Kumbi , Mushiri, Tawanda
- Date: 2016
- Subjects: Clean energy industries - Zimbabwe
- Language: English
- Type: Book
- Identifier: http://hdl.handle.net/10210/217634 , uj:21664 , Citation: Mugwindiri, K. & Mushiri, T. 2016. Cleaner production : theory and applications, case for Zimbabwe. , ISBN: 978-1-77920-114-0
- Description: Abstract: Regardless of its size or nature, industry generates waste and is responsible for implementing the practices of pollution prevention and waste management in its day-to-day operations. Whether it is dirty water or toxic wastes, industrial pollution is all the same in one way: it reduces a business’s profitability. Implementation of Cleaner Production (CP) urges environmental, health and safety department managers, industrial environmental consultants and personnel across all industries to employ a forwardthinking and tested technology of process improvements that will reduce waste generation, reduce the resources requirements to manufacture a product, and, most important to the life a business, increase revenues. Successful implementation of cleaner production improves their productivity, profitability, competitiveness, environmental compliance and working conditions of shop floor employees with minimum financial inputs. This book starts by explaining CP concepts, techniques and strategies. It further gives CP methodologies and case studies of those industries in which CP was successfully implemented. The authors also usher you through all sorts of exercises to test your understanding. I hope the book will encourage all stakeholders to think about what they can do to tackle the rising generation and inappropriate management of waste. Both producers and consumers of goods much work on the betterment of waste management. Every organization must strive to have the tools, technologies and financial resources to adopt CP. All sectors of society need to engage into an integrated life-cycle management of goods. The more efficient and less wasteful manufacturing and consumption processes will be, the less pressure there will be on essential resources and the better human health and the environmental will be protected. As a fellow veteran production engineer, I encourage you to recognise that this field is changing and improvements are being made that empower today’s business leader to minimize waste management generation. This book can be used as a guide if you wish to adopt CP technologies in your organizations.
- Full Text:
- Authors: Mugwindiri, Kumbi , Mushiri, Tawanda
- Date: 2016
- Subjects: Clean energy industries - Zimbabwe
- Language: English
- Type: Book
- Identifier: http://hdl.handle.net/10210/217634 , uj:21664 , Citation: Mugwindiri, K. & Mushiri, T. 2016. Cleaner production : theory and applications, case for Zimbabwe. , ISBN: 978-1-77920-114-0
- Description: Abstract: Regardless of its size or nature, industry generates waste and is responsible for implementing the practices of pollution prevention and waste management in its day-to-day operations. Whether it is dirty water or toxic wastes, industrial pollution is all the same in one way: it reduces a business’s profitability. Implementation of Cleaner Production (CP) urges environmental, health and safety department managers, industrial environmental consultants and personnel across all industries to employ a forwardthinking and tested technology of process improvements that will reduce waste generation, reduce the resources requirements to manufacture a product, and, most important to the life a business, increase revenues. Successful implementation of cleaner production improves their productivity, profitability, competitiveness, environmental compliance and working conditions of shop floor employees with minimum financial inputs. This book starts by explaining CP concepts, techniques and strategies. It further gives CP methodologies and case studies of those industries in which CP was successfully implemented. The authors also usher you through all sorts of exercises to test your understanding. I hope the book will encourage all stakeholders to think about what they can do to tackle the rising generation and inappropriate management of waste. Both producers and consumers of goods much work on the betterment of waste management. Every organization must strive to have the tools, technologies and financial resources to adopt CP. All sectors of society need to engage into an integrated life-cycle management of goods. The more efficient and less wasteful manufacturing and consumption processes will be, the less pressure there will be on essential resources and the better human health and the environmental will be protected. As a fellow veteran production engineer, I encourage you to recognise that this field is changing and improvements are being made that empower today’s business leader to minimize waste management generation. This book can be used as a guide if you wish to adopt CP technologies in your organizations.
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Production planning and control of a master churn mixer for the manufacture of margarine using fuzzy logic at an oil company in Zimbabwe
- Nyemba, Wilson R., Mushiri, Tawanda, Mugwindiri, Kumbi, Mushonga, Roy, Mbohwa, Charles
- Authors: Nyemba, Wilson R. , Mushiri, Tawanda , Mugwindiri, Kumbi , Mushonga, Roy , Mbohwa, Charles
- Date: 2018
- Subjects: Fuzzy logic , Master churn mixer , Production planning and control
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/270488 , uj:28751 , Citation: Nyemba, W.R. 2018. Production planning and control of a master churn mixer for the manufacture of margarine using fuzzy logic at an oil company in Zimbabwe. 2017 ACRID European Alliance for Innovation (EAI) Conference. DOI 10.4108/eai.20-6-2017.2270631 , ISBN: 9781631901607
- Description: Abstract: Process and chemical companies have to continually monitor and control their mixing equipment to ensure that production matches requirements and meets recommended standards especially in food processing. The oil company in this research faced challenges in meeting required specifications in some of their batches, prompting the need to look at more efficient ways to control and monitor the master churn mixer. This paper looks at how intelligent fuzzy logic was used to automate the production planning and control of the master churn mixer of the margarine plant. MATLAB 7.12 was used in developing the control algorithm that enabled all the inputs to be monitored closely before they entered the master churn, while maintaining vegetable oil at 80%, water at 20% and operating temperature at 38oC. This was enabled by sensors and programmable logic controllers which monitored all parameters using fuzzy logic to produce margarine of acceptable quality and standards.
- Full Text:
- Authors: Nyemba, Wilson R. , Mushiri, Tawanda , Mugwindiri, Kumbi , Mushonga, Roy , Mbohwa, Charles
- Date: 2018
- Subjects: Fuzzy logic , Master churn mixer , Production planning and control
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/270488 , uj:28751 , Citation: Nyemba, W.R. 2018. Production planning and control of a master churn mixer for the manufacture of margarine using fuzzy logic at an oil company in Zimbabwe. 2017 ACRID European Alliance for Innovation (EAI) Conference. DOI 10.4108/eai.20-6-2017.2270631 , ISBN: 9781631901607
- Description: Abstract: Process and chemical companies have to continually monitor and control their mixing equipment to ensure that production matches requirements and meets recommended standards especially in food processing. The oil company in this research faced challenges in meeting required specifications in some of their batches, prompting the need to look at more efficient ways to control and monitor the master churn mixer. This paper looks at how intelligent fuzzy logic was used to automate the production planning and control of the master churn mixer of the margarine plant. MATLAB 7.12 was used in developing the control algorithm that enabled all the inputs to be monitored closely before they entered the master churn, while maintaining vegetable oil at 80%, water at 20% and operating temperature at 38oC. This was enabled by sensors and programmable logic controllers which monitored all parameters using fuzzy logic to produce margarine of acceptable quality and standards.
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The use of eco-efficiencies within a cleaner production framework in assessing the overall greenness of a company - a developing country (Zimbabwean) perspective concentrating on food manufacturing companies.
- Mugwindiri, Kumbi, Mbohwa, Charles, Ndhlovu, Bhekimpilo
- Authors: Mugwindiri, Kumbi , Mbohwa, Charles , Ndhlovu, Bhekimpilo
- Date: 2013
- Subjects: Food industry and trade - Environmental aspects - Zimbabwe , Clean energy industries - Zimbabwe
- Type: Article
- Identifier: uj:6178 , http://hdl.handle.net/10210/13785
- Description: This research seeks to develop an integrated system of EECP options, indices and techniques with less resource usage intensities and higher operational efficiencies for the food manufacturing industry in Zimbabwe. Specifically the research will seek to conserve raw materials as there will be reduced waste accumulation, eliminate contact with toxic raw materials by substituting or disposing them, reduce the quantities and toxicity of wastes and emissions, quantify and stratify wastes generated in Zimbabwean industries, develop an EECP based framework for measuring the greenness of a company. The concomitant result is that the working environment will be cleaner and safe thereby reducing health hazards and will also be more productive and profitable.
- Full Text:
- Authors: Mugwindiri, Kumbi , Mbohwa, Charles , Ndhlovu, Bhekimpilo
- Date: 2013
- Subjects: Food industry and trade - Environmental aspects - Zimbabwe , Clean energy industries - Zimbabwe
- Type: Article
- Identifier: uj:6178 , http://hdl.handle.net/10210/13785
- Description: This research seeks to develop an integrated system of EECP options, indices and techniques with less resource usage intensities and higher operational efficiencies for the food manufacturing industry in Zimbabwe. Specifically the research will seek to conserve raw materials as there will be reduced waste accumulation, eliminate contact with toxic raw materials by substituting or disposing them, reduce the quantities and toxicity of wastes and emissions, quantify and stratify wastes generated in Zimbabwean industries, develop an EECP based framework for measuring the greenness of a company. The concomitant result is that the working environment will be cleaner and safe thereby reducing health hazards and will also be more productive and profitable.
- Full Text:
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