Unit 1 in sustainable materials in engineering.pptx

Sustainable mAtreials

1. 1. Sustainable Development and Role of Engineers

2. Introduction : Sustainable development can be defined as an approach to the economic development of a country without compromising with the quality of the environment for future generations. In the name of economic development, the price of environmental damage is paid in the form of land degradation, soil erosion, air and water pollution, deforestation, etc. This damage may surpass the advantages of having more quality output of goods and services.

3. Sustainable Development Goals

4. Achieving Sustainable Development

5. Examples of Sustainable Development

6. What is Environmental Crisis? Environmental crisis refers to a situation when an environment fails to perform its vital function of life sustenance. The environment becomes suitable as soon as the following happens: Resource extraction remains below the rate of resource generation. Generation of waste remains within the absorption capacity of the environment.

7. Reasons for Environmental Crisis

8. Paris Agreement: https://unfccc.int/process-and-meetings/the-paris-agreement/the-paris-agreement?gclid=EAIaIQobChMIpumWwcCp_AIVQQ9yCh1hugzzEAAYASAAEgLNYfD_BwE Sustainable Development Goals: https://unfccc.int/topics/action-on-climate-and-sdgs/action-on-climate-and-sdgs

9. Sustainable Development and the Engineering Profession:

10. What is Life Cycle Thinking? Life Cycle Thinking (LCT) is about going beyond the traditional focus on production site and manufacturing processes to include environmental, social and economic impacts of a product over its entire life cycle. Life cycle thinking means accounting for economic, environmental and social impacts across all stages of a product or process life cycle. This perspective informs the design team of the product’s life cycle impacts across a range of sustainability issues (i.e. greenhouse gas emissions, jobs created, daily average life years, etc.). It’s not always easy for companies to decide which design alternatives are better. So, it’s up to the company to compare life cycle impacts of a product or process to their mission and goals.

11. Life cycle thinking is based on and requires using some form of Life Cycle Assessment (LCA), such as: Environmental LCA Social LCA Life cycle cost analysis or total cost of ownership Streamlined LCA The typical life cycle stages companies consider when evaluating the impacts of a product or service are listed below. The number of stages to include in your life cycle thinking depends on the product or process. Transportation between all stages should be included as well: Raw material extraction Material processing Manufacturing Use End-of-Life

12. Looking at the industrial sector, taking LCT as an approach means going beyond the more narrow traditional focus on an enterprise’s production facility. A product life cycle can begin with the extraction of raw materials from natural resources in the ground and the energy generation. Materials and energy are then part of production, packaging, distribution, use, maintenance, and eventually recycling, reuse, recovery or final disposal. In each life cycle stage there is the potential to reduce resource consumption and improve the performance of products.