Topic 2
==2.1 Resources and Non-renewable resources==
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
==2.2 Waste Mitigation Strategies==
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:
- Developing new bio-fuels, self-decomposing materials, building products from recyclable materials, reconditioning products and building products with a “cradle to cradle” life-cycle.
- Making consumers and manufacturers aware of pollutants and the effect on the environment, passing acts/legislation to ban/reduce these pollutants i.e. the EU “Take Back” program and the US “Clean Air Act”. Eco-labeling products for consumer awareness
- Following ISO (International standards organisations) 14000
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:
- Product recovery strategies at end-of-life/disposal
- Energy from waste, reuse of parts of products, recycling from parts of products.
- Circular economy-the use of waste as a resource within a closed loop system
- Environmentalists have a large influence on product marketability, designers and manufactures often work together to design products which are deemed as Green/Environmentally friendly.
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
==2.3 Energy Utilisation, Storage and Distribution Waste Mitigation Strategies==
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:
- record carbon emissions
- discover how much is being produced
- discover who/ where it is produced
- track your carbon footprint
Reducing:
- Humans intervention in the reduction of carbon emissions
- These contribute to global warming
- Resulting in melting polar caps, rising seas, desertification,
- provide ‘Sinks’ that can reabsorb carbon emissions. A ‘Sink’ are forests, vegetation or soils.
==2.4 Clean Technology==
Clean Technology - Products, services or processes that reduce waste and require the minimum amount of non-renewable resources
Drivers for cleaning up manufacturing:
- promoting positive impacts
- ensuring neutral impact or minimizing negative impacts through conserving natural resources
- reducing pollution and use of energy
- reducing waste of energy and resources
| 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
==2.5 Green Design==
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:
- increasing efficiency in the use of materials, energy and other resources;
- minimizing damage or pollution from the chosen materials
- reducing to a minimum any long-term harm caused by use of the product
- ensuring that the planned life of the product is most appropriate in environmental terms and that the product functions efficiently for its full life
- taking full account of the effects of the end disposal of the product
- ensuring that the packaging and instructions encourage efficient and environmentally friendly use
- minimizing nuisances such as noise or smell
- analysing and minimizing potential safety hazards
- minimizing the number of different materials used in a product
- labelling of materials so they can be identified for recycling.
Evaluating:
- raw materials used
- packaging
- incorporation of toxic chemicals
- energy in production and use
- end-of-life disposal issues
- production methods
- atmospheric pollutants.
Strategies for designing Green Products:
- raw materials used
- packaging
- incorporation of toxic chemicals
- energy in production and use
- end-of-life disposal issues
- production methods
- atmospheric pollutants.
Prevention principle:
- Knowledge based
- Actual risk of causing harm can be assessed
- Occurrence of damage is probable if no measure is taken
- Regulation emission framework defines substantial criteria (eg. emissions thresholds)
- Definition of acceptable risk is primarily science based
Precautionary principle:
- Uncertainty
- Risk cannot be calculated and is only a suspected risk of causing harm
- Occurrence of damage is uncertain and cannot be predicted clearly
- Regulation through procedural requirements
- Social acceptance of the risk is considered
==2.6 Eco Design==
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):
- Pre-production
- Production
- Distribution (including packaging)
- Utilisation
- Disposal
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:
- increase recyclability
- reduce energy requirements
- maximise use of renewable resources
- reduce creation and use of toxic materials
- reduce material requirements of goods and services
- increase product durability and reduced planned obsolescence
Environmental impact assessment matrix:
- water
- soil pollution and degradation
- air contamination
- noise
- energy consumption
- consumption of natural resources
- pollution
- effect on ecosystems
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