Papers by Keyword: Green Manufacturing

Abstract: This paper presents a flexible measuring system to identify energy efficiency potentials in the context of the ISO 50001 standard. On the basis of five essential requirements the flexible measuring system was structured into 4 modules which can be separately extended or modified. As the flexibility was in focus of the development this system it is able to measure the energy consumption on a very detailed level of the components of a machine. In addition it can also acquire measurement data of different other sensor signals like temperatures, flow rates etc. To evaluate the usability of the system in order to identify energy efficiency measures a use case was conducted. Results of the measurement data as well as possible energy savings of the investigated machinery are discussed at the end of this paper.

Abstract: The utilisation phase of machinery in discrete manufacturing operations is characterized by changing economical and technical requirements like capacity, performance and as emerging requirement reduced energy consumption. Established industry practices as well as upcoming standards mainly focus on improving the energy efficiency by developing new machinery. Especially existing factories and the machinery in use offers energy saving potentials to be identified and to be capitalized by implementing energy saving retrofit measures. By doing so, the use of existing manufacturing machinery leads to a sustainable use of manufacturing equipment. The discussed research work therefore includes an approach to interpret in-process measurement data and to derive electric energy savings potentials. Based on this assessment, improvement measures like dimensioning, reduction of baseline energy-consumption by updating the PLC and minimisation of peak loads by energy management is engineered. Finally the financial impact of the obtained energy savings is quantified by evaluating the developed methodology during several use cases.

Abstract: Recently, the concern for the environment has been increasing rapidly. In machining processes, the treatment of water-soluble coolants waste has caused environmental problems. Water-soluble coolants contain surfactants, preservatives, and corrosion inhibitors for maintaining the stability and performance of the coolants. To reduce the management cost and environmental effect of water-soluble coolants, the authors have been studying a recycling system for water-soluble coolants. In the recycling system, oil-free recycle water is isolated from the coolant waste and reused as a diluent of the new coolant. The authors have been developing different types of water recovery methods for the recycling system, and the recovered water from the coolant waste has potential as a diluent for a new coolant. In this report, we focused on the amine (alkanolamine) -free water-soluble coolant. Some amine-free water-soluble coolants have been developed and are commercially available. A reduction in the environmental effect in the waste treatment of coolants is expected with amine-free coolants. We have demonstrated that the amine-free water-soluble coolant has equal or better cooling and lubricating performance compared with the conventional amine-containing coolant. In addition, the amine-free coolant shows good recyclability for the recycling system. The processing time of the recycling treatment of the amine-free coolant has been decreased by half with our recycling process compared with the conventional amine-containing coolant. In this report, we examined the stability, cooling performance and lubricating performance of the recycle amine-free water-soluble coolant in long term operation. The recycle amine-free water-soluble coolant is operated in a 3-axis machining center for several months. We observed concentration, pH, corrosion inhibition performance, cooling performance, and lubricating performance of the coolant. The results from these experiments show the amine-free water-soluble coolant has the advantage to use in the recycling system for water-soluble coolant.

Abstract: Lean manufacturing is a strategic tool, which is used to cut down waste and to improve the efficiency of an organization and helps the organization to sustain in the competitive environment. Implementation of green systems in organization results in reduce energy consumption, waste generation, and hazardous materials used while also building the companies’ images as socially responsible organizations. Several research efforts discussed in the literature indicate that lean companies show significant environmental improvements by being more resource and energy efficient. Lean and green systems are associated with waste reduction techniques. In foreign, many industries have started implementing these concepts and they are getting good results. In India, companies are facing problems in implementing lean and green concept. This paper investigates critical success factors for lean and green system implementation in Indian medium scale manufacturing industries. The factors are grouped into different levels by Interpretive Structural Modelling (ISM)

Abstract: Green manufacturing is a sustainable approach, designed to use energy, water and other resources more efficiently thereby reducing the overall impact on the environment. Improved quality of life, better health conditions and diminished costs are other benefits. This paper focuses mainly on the foundry industry, as being very energy intensive, it offers immense scope for the application of green concepts. A case study conducted in a foundry in Tamil Nadu, gives an over view as to how green manufacturing can be made possible in the foundry industry. Each process involved in the foundry was analyzed using green concepts and alternatives and suggestions were made. Additional green strategies have also been discussed.

Abstract: Green manufacturing is an advanced manufacturing mode as well as the fundamental way to the sustainable development of human society. Based on green manufacturing of auto companies, the advantages of green manufacturing and automotive companies for green materials applications is analyzed in the article. Green manufacturing of automotive companies is evaluated in this article, through analytic hierarchy process.

Abstract: With huge energy and resources consumption and serious environmental pollution during the manufacturing process in China, from the aspect of multiple views, the paper analyzes the operation mode of the green manufacturing and "four circulations" coupling mechanism including material flow, energy flow, information flow and discharge flow, which can be the basis for the enterprise to establish the optimal energy control and management strategy and other relevant research with the optimization objectives of minimum energy loss and environmental impact during production for green manufacturing.

Abstract: Problems on resource and environment are found through the analysis of traditional stamping process. The theory of variation weight fuzzy comprehensive evaluation method is introduced and the evaluation model has been built. Then the weight-constant and weight-variation fuzzy comprehensive evaluation methods are used to evaluate the selection of punching machines. The conclusion proves that the variation weight makes the evaluation more scientific and accurate.

Abstract: green manufacturing is the reflection of the human society sustainable development strategy in modern manufacturing. This paper firstly introduced the concept and connotation of green manufacturing. And then analyzed the green manufacturing strategy implementation process exists some barriers such as the market, the organization and the technologies. And secondly corresponding researched the influence mechanism of the implementation of green manufacturing of the market barriers, the organizational barriers and the technical barriers. Finally detailed studied the key technologies of the green manufacturing, such as the entire life cycle of products from design, material selection, production, packaging, use to scrap process.

Abstract: Currently, consumers are eager to know the exact origin of the products they consume, the methods of production and raw materials which have been used. During the last decades, consumers have developed new concerns: the welfare of workers and farm animals, the sustainability of production processes and an environmental protection. People need to learn a new consumption behave in order to rediscover the culture of living in harmony with nature. So that products can be good and healthy, not only the used materials and the processing phases have to be sustainable: often there are factors which we do not consider cause they seem obvious, but the environmental costs are hidden everywhere (e.g. packaging, supply-chain, etc.). In this sense, eco-fashion design is the result of a fruitful synergy between fashion and sustainability. Clothing and accessories are manufactured in view of a new mission that considers reduction of waste, a use of high-quality natural materials and improves the general job conditions. Wear "green" should not only be a style, but the foundation of a philosophy of life centered in full compliance with own conscience and the ecosystem which we live. Within this renewed and hoped attention to environmental needs, also clothing will come from green production systems; moreover it will suggest new ways of living and behaviour promoting, in addition to the wrap function, a new communicative function. Every eco-fashion products of the future will be evolved, virtuous, fully sustainable (environmentally, socially and ethically speaking) and will be the proposer of ethical consumption and environmental protection. In this publication will be analyzed why it is fair to buy eco, showing new fashion brands that have created their own identity, starting from the ideal of a low environmental impact. The various brands are analyzed, criticized or praised. Is wondering about the various collections, the company's mission, emphasizing the ethical, environmental and social aspects.