GREEN MANUFACTURING-A NOBLE WAY TO ACHIVE SUSTAINABILITY

Golak B Mahanta1

Dr D dutta2

1:Design and Manufacturing, Department of Mechanical engineering,NIT Silchar

2-Asst.Proffesor ,Department of Mechanical Engineering ,NIT Silchar

Abstract:

As we enter the 21st century, humanity faces enormous challenges in the sustainability of our

current lifestyles and systems. There are a number of critical global environmental issues

including energy, pollution, transportation, agriculture, land use, construction, water access

and use, and ecological destruction. Green manufacturing is a subset of green engineering.

Environmentally friendly machining is a part of green manufacturing. It is included in the

concept of sustainable manufacturing, which considers economical and social concerns in

addition to environmental concerns.

Keywords:Green engineering • Green manufacturing ,Environmentally friendly

machining,Sustainable manufacturing, ISO 14000

Introduction:

Over a decade, there has been a renewed focus on the impact of organizations and manufacturing on the natural environment. Increasingly, stakeholders including regulators, customers, shareholders, board members, and employees are asking or requiring organizations to be more environmentally responsible with respect to their products and processes. Research on the impact of environmental practices on organizational outcomes is somewhat inconclusive. Some researchers have found that environmental initiatives may have a negative impact on company performance. Every day, engineers and scientists make technical decisions which have significant impact on the environment. Sometimes these decisions lead us to the sustainability .

What is Sustainable Manufacturing?

Recently, the keyword “sustainable manufacturing” has become very popular. Sustainable manufacturing considers environmental, economic, and social aspects. The aim of the sustainable manufacturing is to develop technologies for transforming materials with

objectives of reducing emission of greenhouse gases, avoiding use of non renewable or toxic materials, and avoiding generation of waste.

In a keynote paper, Westkamper et al. (2000) have listed the following five critical

factors that the world is confronting:

1. A rising consumption of natural resources

2. The dramatic increase in world population

3. Environmental impacts, i.e., limited natural resources (energy, materials)

4. Global communication networks based on standards

5. An unstoppable worldwide globalization

To overcome these factors, there is a need to switch over to sustainable manufacturing. The term sustainability is often used to cover environmental issues. As a result of the UN General Assembly resolutions, the World Commission on Environment and Development was set up. The commission published a report entitled “Our Common Future,” which is commonly known as Brundtland report.

What is Green Manufacturing?

Now a days an increasing demand concerning about environment consideration in Manufacturing industry. Environmentally friendly manufacturing concerned with developing methods for manufacturing new product from conceptual design to final delivery and ultimately to the end-of-life disposal such that environmental standards and requirements are satisfied . one of the main causes of environmental pollution is manufacturing industry How to minimize the pollution which affects the environment due to the manufacturing industry is an important concern for all manufacturers. an advanced manufacturing philosophy called green manufacturing (GM) become popular as a sustainable development strategy in industrial processes and products. GM is a modern manufacturing strategy, which is backbone for this twenty-first century manufacturing industries. Green Manufacturing goal is to reduce and minimize pollution and simultaneously increase the efficiency.

Areas of application:

1.Lean manufacturing –here main focus is on reduction of the material handling time so

that the efficiency increased.

2.product design-when a product is initially designed at that time need to think of the

recycled materials .so that the reuse of the product is possible.

3.Green chemistry-Main aim is to reduce the toxic product which coming out from the

manufacturing industry.

4.this techlology is now mainly used by the automobile industry.

Benifits:

Although it has lot of benefits ,some are environmental benefits, company benefits and

technological benefits.as the waste is less ,it shows impact on the environment .due to some

social responsibility of the company ,company got some reputation to produce good product

which is environment friendly .in the journey of this we have to develop lot of new things ,so

we can replace the older technology and implement new one which is much more good than

its predecessor.