Reserves - for how long will we have this resource?
Renewable Resources
1.) Are inexhaustible
2.) Are not affected by human activities
3.) Release less carbon emissions
4.) More expensive to implement.
eg. hydroelectric, geothermal, solar,
wind, tidal
Non Renewable Resources
1.) Resources are present in fixed and
limited quantities.
2.) Are exhaustible.
3.) Release more carbon emissions.
4.) Less expensive to implement.
eg. coal, timber, natural gas, oil, nuclear
Re-use - same product but different context
Repair - renewing or setructing a broken/damaged part of a product
Re-engineer - redesign a part or a whole product to improve it
Recycle
Recondition - rebuilding an old product to be “new”
Dematerialisation - “do more with less”, trying to use less materials
Waste reduction - Looking into the current management of waste
Methodologies for waste reduction:
Designing out waste - The prevention, monitoring and handling of waste, coming up with solutions to deal with pollution and waste.
Methodologies for designing out waste:
Raw Material Recovery - separating the component to recover the parts of the product you need
WEEE Recovery - a complex mixture of materials and components from electrical products that
can cause major environmental and health problems
Energy recovery (ex; waste to energy (WtE) or energy from waste (EfW)) - is the process of generating energy in the form of electricity and/or heat from the primary treatment of waste.
Life Cycle Analysis - a tool which designers use to asses and equalise the enviromental impact of a product. Helps to see areas in a product that can be improved
Circular Economy - An economy model in which resources remain in use for as long as possible
Embodied Energy - all the energy that required to produce the product
Combined heat and power (CHP) - is an efficient and clean approach to generating electric
power and useful thermal energy from a single fuel source. CHP is used either to replace
or supplement conventional separate heat and power (SHP). Instead of purchasing
electricity from the local utility and burning fuel in an on-site furnace or boiler to produce
thermal energy, an industrial or commercial facility can use CHP to provide both energy
services in one energy-efficient step
Measuring:
Reducing:
Clean Technology - Products, services or processes that reduce waste and require the minimum amount of non-renewable resources
Drivers for cleaning up manufacturing:
Geographical Scale | Types of environmental problem |
---|---|
Local | Noise, smell, air pollution, soil and water pollution |
Regional | Soil and water over-fertilization and pollution, drought, waste disposal, air pollution |
Fluvial | Pollution of rivers, regional waters and watersheds |
Continental | Ozone levels, acidification, winter smog, heavy metals |
Global | Climatic change, sea level rise, impact on the ozone layer |
Legislation - laws. Consider how legislation provides an impetus to manufacturers to clean up manufacturing processes and also how manufacturers react to legislation
End of Pipe Technology - An initial response to reducing the emission of pollutants and creation of waste is adding clean-up technologies to the end of the manufacturing process
Incremental Solutions - Products which are improved and developed over time leading to new versions and generations.
Radical Solutions - Where a completely new product is devised by going back to the roots of a
problem and thinking about a solution in a different way
System of level solution - embraces the idea of a solution to the problem of pollution and waste as a whole and is concerned with the interrelationship rather than individual elements
Green Design - The product- role of designer: The starting point for many green products is to improve
an existing product by redesigning aspects of it to address environmental objectives
Incremental innovation - is sometimes referred to as continuous improvement, and the business attitude associated with it is ‘inside-the-box’ thinking. A simple product may be improved (in terms of better performance or lower costs) through the use of higher performance components or materials
Radical innovation - involves the development of new key design elements such as change in a product component combined with a new architecture for linking components
Consumer Pressure
Design objectives for green products:
Evaluating:
Strategies for designing Green Products:
Prevention principle:
Precautionary principle:
Eco-design - a more comprehensive approach than green design because it attempts to focus on all three broad environmental categories—materials, energy and pollution/waste. This makes eco-design more complex and difficult to do
Internal drivers for eco-design | External drivers for eco-design |
---|---|
Manager's sense of responsibility | Government |
The need for increased product quality | Market demand |
The need for a better product and company image | Social Environment |
The need to reduce costs | Competitors |
The need for innovative power | Trade organisations |
The need to increase personnel motivation | Supplies |
Cradle to grave - design considers the environmental effects of a product all of the way from manufacture to use to disposal
Cradle to cradle - can be defined as the design and production of products of all types in such a way that at the end of their life, they can be truly recycled (upcycled), imitating nature's cycle with everything either recycled or returned to the earth
LCA (Life Cycle Assessment):
UNEP Ecodesign Manual - the United nations released an Eco-design manual also known as Design for
Sustainability (D4S). The major concerns outlined in the UNEP Ecodesign Manual were
to:
Environmental impact assessment matrix:
Converging technologies - The synergistic merging of nanotechnology, biotechnology, information and communication technologies and cognitive science. A typical example of converging technology is the smart phone in terms of the materials required to create it, its energy consumption, disassembly, recyclability and the portability of the devices it incorporates