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Sustainable Manufacturing
Concepts, Tools, Methods and Case Studies
S. Vinodh
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eBook - ePub
Sustainable Manufacturing
Concepts, Tools, Methods and Case Studies
S. Vinodh
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Sustainability enables the development of products with minimal environment impact coupled with economical and societal benefits. This book provides an understanding of theoretical and practical perspectives pertaining to Sustainable manufacturing.This book focuses on fundamentals, providing insights, concepts, tools, methods, case studies, and practical perspectives taken from research.The book will be of interest to students, researchers and industry practitioners.
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1
Concepts and Fundamentals of Sustainable Manufacturing, Triple Bottom Line Approach
1.1 Overview of Triple Bottom Line
Triple bottom line (TBL) is the base for sustainability. TBL underlies the rationale of sustainability by evaluating the impact in terms of profitability; shareholder values; and its societal, people and environmental capital (Savitz, 2013). It is based on 3Ps: profitability, people and planet. Profitability pertains to the economy; people pertain to societal and planet pertains to environmental dimensions. It considers the development and application of a corporate strategy involving environmental, societal and financial results (Mowat, 2002). TBL provides a three-dimensional view of sustainability moving from the viewpoint of the environment to include economic and societal dimensions (Shaffer, 2018). Widely cited definitions of TBL are presented in Table 1.1.
TABLE 1.1
Widely Cited Definitions of TBL
Widely Cited Definitions of TBL
Definition | Reference |
âTaking environmental, social and financial results into consideration in the development and implementation of a corporate business strategyâ. | Mowat (2002) |
TBL firms aim to become more responsive ecologically and socially while prospering economically. This threefold focus is often referred to in terms of âpeople, planet, profitâ, or as the ââtriple bottom lineâ (TBL). | Elkington (1997) |
1.2 Overview of Sustainable Manufacturing with Evolutionary Aspects
Manufacturing systems have witnessed a shift from mass production to lean, green and sustainable manufacturing. The transition of manufacturing systems is shown in Figure 1.1. Key parameters governing this transition include product complexity, market dynamism and stakeholder value. Craft manufacturing includes skilled employees and has low production volume. Mass manufacturing is characterized by interchangeable parts and delivers high productivity (Rojko, 2017). It can handle market dynamism better than a craft system. Mass manufacturing is characterized by high-volume manufacturing with limited product variants. It fulfils economies of scale, which state that the unit cost of a product comes down as a result of high-volume production. Lean manufacturing is characterized by waste elimination, streamlined processes and value addition (de Freitas et al., 2017). Lean is a predecessor manufacturing system to green and sustainable manufacturing. Lean production is based on the Toyota Production System (TPS), which is waste reduction based on skilled workers and focused on value addition. Green manufacturing is environmentally benign and 3R-based (reduce, reuse, recycle). Sustainable manufacturing is innovative and 6R-based (3Rs plus recovery, redesign and remanufacture). Sustainable manufacturing is referred to as an âEâ paradigm with the focus on ecology, economy, excellence and so on. Lean is a predecessor element to sustainability as lean facilitates waste elimination, which forms the path for sustainable manufacturing.
Sustainable manufacturing (SM) is concerned with executing a new form of business with value creation to develop green products and processes in demand (AlayĂłn, 2016). Key business benefits from SM include improvement of efficiency and productivity, reduced usage of hazardous materials, compliance with regulations, enhanced reputation and enhanced community relations.
The environmental focus of manufacturing was initially on pollution abatement (reducing pollution). Then the shift was towards cleaner production and pollution prevention (U.S. Department of Commerce, 2011).
1.2.1 Evolution of Sustainable Manufacturing
The main environmental focus in a manufacturing context had been referred to as pollution abatement, that is preventing the pollution generated from entering the environment. Then the focus became cleaner production and pollution prevention. With cleaner production, there exists scope for cost reduction and other economic advantages (U.S. Department of Commerce, 2011).
- Clean technologies are vital from the viewpoint of sustainable manufacturing and include associated aspects such as environmental protection, compliance with regulatory bodies, pollution prevention and renewable technologies.
- Green production deals with development of green products, i.e. products with minimal environmental impact.
- Sustainable manufacturing includes a methodological approach for waste elimination by resource optimization and utilization of resources, and technologies with less environmental impact.
1.3 Definitions of Sustainable Manufacturing
Widely cited definitions of sustainable manufacturing are presented in Table 1.2. Elements identified with sustainable manufacturing include fewer environmental impacts, resources conservation, safety, economic benefits, meeting requirements of future generations, energy conservation, employee health, inclusive growth and optimal resource utilization. SM facilitates the development of green products that are designed to reduce environmental impact with the usage of recyclable materials.
TABLE 1.2
Widely Cited Definitions of Sustainable Manufacturing
Widely Cited Definitions of Sustainable Manufacturing
Definition | Reference |
âManufacturing processes that meet the needs of the present without compromising future generationsâ ability to meet their own needsâ. | Gardner and Colwill (2016) |
âThe creation of manufactured products that use processes that minimize negative environmental impacts, conserve energy and natural resources, are safe for employees, communities, and consumers; and are economically soundâ. | U.S. Department of Commerce (2011) |
1.3.1 Business Benefits of SM are (Alayon, 2016)
- Increased sales.
- Improved efficiency and productivity.
- Compliance with regulations.
- Enhanced reputation and image.
- Better community relations (AlayĂłn, 2016).
1.3.2 Implementation of Sustainable Manufacturing at Initial Stage
The details of implementing SM are presented as follows (U.S. Department of Commerce, 2011; Kishawy et al., 2018):
- Housekeeping â Can be facilitated with 5S lean tools for enhancement in work practices.
- Process optimi...