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International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 626
An Integrated Approach towards Sustainable Design and
Manufacturing In View of Attitudes and Challenges
Vasagade Vijay G1 , Varpe Rohan S2, Danwade Arshad S3.,Kolekar Mahendra R4,Patil Avdhut
S5,Banne Ashwini L6
1(Head of Department, Mechanical Engineering, Y. D. Mane Institute of Tech., Kagal),
2(Head of Department, Science and humanities, Y. D. Mane Institute of Tech., Kagal),
3,4,5,6(Lecturer, Mechanical Engineering, Y. D. Mane Institute of Tech., Kagal),
---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract: In today day, sustainability in mechanical
engineering play a vital role, as all conventional sources of
energy either going to vanish in upcoming centuries or
provide inefficiency in energy production or consumption.
Through integrated approach we can offer resilient focus
on the implementation of sustainability concepts, actions
and measures in design and manufacturing. Sustainable
technology on urgency uses less energy and natural
resources reduces emissions and material wastes and
utilizing more renewable, recyclable and recycled
materials. Sustainable engineering mainly consider
regulatory requirements, rising energy costs and client
demand, however to incorporate sustainability technology
attitudes of engineers and companies must considered as
well as economics, barriers in execution need to be
addressed.
Keywords: Sustainability, attitudes, barriers, wastes,
environment, design, manufacturing.
1. Introduction
The report framed by Brundtland commission defines the
sustainable development as “the development that meets
the needs of the present, without compromisingtheability
for the future generation to meet their own needs” [2].The
Asia having rich biodiversity and natural resources and
dynamic economy and more than 4 million of peoples
aspiring from prosperous and secure future have seen
rapid economic growth in recent decades. However rising
population, growing resource scarcity, energy and food
security and natural disaster made worse by climate
change and are affecting peoples across the region
particularly poor and marginalized peoples [5].
The message is clear for the millions having lifted out of
poverty the current models are unsustainable and
inequitable, a new economic model is need that boosts,
development, reduces poverty, and provide high qualityof
life. The solution is green growth, green economy which is
–resources efficient, low carbon producer, and socially
inclusive. Many countries from Asia are already
transforming to thisnewparadigm,theirexperienceshows
right policies, knowledge skills and incentives can
influence behavior and catalyze investment in green
business and activities. Increasingly countries are using
low emission development strategies (LEDS) as the
foundation for achieving green growth [5].
2. Ecological Imbalances- Causes and
Consequences
The main reason for imbalance in world’s ecosystem is
dominance of mankind in the global ecosystem and his
hostile alternation of it to satisfy his need and greed. Some
specific causes for eco-imbalance are as follows [3]
Changing Hydrology
Irrigation is a major consumer of water in many countries.
When river water is used for irrigation by constructing
canals, the rate of water flow in the river is reduced and
the quality of water down-stream may decline. Building
large dams for irrigation and power generation changes
the ecosystem of the area impounded for the reservoir.
In the impoundment area, a large number of trees may be
felled, fertile land may be submerged under water and a
large human population may be displaced. In addition,
irrigation increases the water vapour contents of the
surrounding air, altersthesurfacerun-offcharacteristicsof
the land and sometimes, increases the concentration of
pesticides in the underlying ground water.
Large-Scale Use of Fertilizers
Plants rarely use more than 50-60 percent of the nitrogen
chemical fertilizers. The residual nitrogen in the form of
nitrate is likely to pollute ground and surface waters,
causing over-enrichment of nutrients and algal blooms in
rivers and lakes. Some of the extra nitrates may also be
converted into nitrogen oxides by the action of certain soil
bacteria.
In order to reduce the adverse ecological impact of the
large-scale use of fertilizers, researches are being
conducted currently to determine the extent of fertilizer
use and minimize environmental pollution, while
maximizing food production.
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 627
Large-Scale Use of Pesticides
Pesticides are the chemicals used to eradicate pests.
Pesticides are classified as insecticides, Rodenticides,
fungicides, nematicides, herbicides and so on. However,
none of these chemicals are so specific as to kill only the
target species. As a result, they pose hazards also to other
organisms including man.
Changes in Earth's Surface
The atmosphere and the ecosystem canbeaffected bothby
human activities and natural changes in the physical and
biological properties of the earth's surface. Modifications
(including deforestations and swamp drainage) that
reduce evaporation from an area and alter the amount of
energy available for evaporation, thereby changing the
energy balance at the earth's surface.
Acid Rain
In common language, "acid rain" means the presence of
good amount of acids in rain water. Acid rain is one of the
major effects of air pollution. Large amounts of sulphur
dioxide and oxides of nitrogen are released into the
atmosphere through the burning of fossil fuels (oil and
coal) and fuel wood. These oxides (SOx and NOx) react
with the atmospheric water vapour to produce sulphuric
acid (H2SO4) and nitric acid (HNO3), which then return to
the earth's surface with rain water. Acid rainposesa major
threat to ecological balance with potential for both macro
and microbiological effectsonplantsandanimals.Acidrain
not only affects crops, forests and aquatic ecosystems
adversely, but it also leches exposed rocks, there by
damaging ancient monuments such as the Taj Mahal.Since
many famous structures have been constructed from soft
rocks, acid rain has already damaged many ancient
monuments of great historical value
Green-House Effect
The atmosphere of the earth is said to act like a "green-
house" and carbon dioxide is one of the major components
of the atmosphere which stimulates the "green-house
effect". The green-house becomes warm because glass is
transparent to visible light but practically opaque to
infrared radiation. As a result, the sunlight can pass
through the glass walls of the green-house and can get
absorbed by the soil inside it. It is then reemitted as heat
rays (infrared radiation), which cannot pass through the
glass walls. As a result, the temperature inside the green-
house rises above the ambient temperature. The rising
proportion of carbon dioxide is causing great concern
because the green-house effect will result in higher
average temperature on the surface of the earth (the so-
called "global warming”). If this happens, there will be
wide-spread climatic change with possibly disastrous
consequences. The rising temperaturecouldmeltthepolar
ice caps, submerging much of low-lying land mass and
many coastal cities (like London, New York, Mumbai,
Kolkata and Chennai) under sea water. Similarly, fertile
land may be turned into desertandagricultural production
may fall drastically due to global warming.
Forest Fires
Fire is still employed to help man hunt wild animals, clear
forests and obtain charcoal for fuel. Repeated forest fires,
combined with overgrazing, can seriously degrade the
environment and harm the ecosystem.
Overgrazing
Environmental degradation and ecological damage arising
from overgrazing are wide-spread in aridand semi-arid
regions of the Near-Eastern countries, Central Asia andthe
Mediterranean basin for many years.
One important consequence of overgrazing is
desertification (i.e., a process ofreductionoreliminationof
the productive capacity of land that leads ultimately to
desert-like formation). About 95% of the land in the arid
and semi-arid regions of the world is in the processes of
desertification
Clearance of Forests
Reduced the world's original forest area by at least 33%.
Man has converted forests to grasslands and crop lands.In
addition to the clearance of forests for agriculture and
animal husbandry, the forests are being destroyed for
timber and fuel-wood.
Integrated approaches to Sustainability
To achieve sustainability it is favorable to integrate
engineering design, manufacturing,environmentconcerns
and attitude. To understand these parameters,itisfeasible
to design manufacture the product or processeskeepingin
mind environment, we have discussed it in detail as
follows.
Fig a. Integrated approach to Sustainability
3. Sustainable Design and Manufacturing
Sustainability is the intersection of these three concepts;
this is “people, planet, and profit”
Sustainable Manufacturing
The Green Suppliers Network (DOC/EPA) defines clean
manufacturing as “a systematic approach to eliminating
waste by optimizing use and selection of resources and
technologies, thereby lessening the impact on the
environment.”Sustainable manufacturing focuses on both
how the product is made as well as the product’s
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 628
attributes. This includes the inputs, the manufacturing
processes, and the product’s design.
Sustainable manufacturing includes things suchasmaking
products using less energy and materials, producing less
waste, and using fewer hazardous materials as well as
products that have greener attributes such as recyclability
or lower energy use.Sustainable manufacturing practices
can range from very simple processimprovementstolarge
investments in new technologies and productredesign[2].
Clean Technologies
Clean or Environmental Technologies are technologies
associated with things like environmental protection,
assessment, compliance with environmental regulations,
pollution control and prevention, waste management,
remediation of contaminated property, design and
operation of environmental infrastructure, and the
provision and delivery of environmental resources.
Renewable energy technologies are also considered to be
clean technologies.
Examples of clean technologies include technologies for
wastewater treatment, recycling,solidwastemanagement,
solar panels and wind turbines. Many clean technologies
can be used to green the manufacturing process and are
therefore important to sustainable manufacturing [2].
Green Products
Making “green products” can be seen as partofsustainable
manufacturing, and we will discussitinmoredetail later. A
green product can be any product that is designed to
reduce its environmental impact. A key concept is that
environmental concerns and impacts are taken into
account from the beginning of the product design process.
This is important because most of a product’s
environmental impact is determined in the design phase.
The product may be made of recycled materials, designed
so that it can be easily recycled, made without hazardous
materials, or produced with less packaging. There are no
accepted standards for what constitutesa “greenproduct,”
although there are rules from the Federal Trade
Commission about making environmental marketing
claims. There are also many eco-labeling programs that
are used to identify and market green products [2].
Industrial ecology
“The study of the physical, chemical, and biological
interactions and interrelationships both within and
between industrial and ecological systems” Fig.01
It is based on systems thinking – industry is an
interdependent part of the overall ecosystem.Itstudiesthe
material and energy flows through the system to find
inefficiency and waste. One of the goals of industrial
ecology is to move industry from a linear to a cyclical or
closed system where waste is used as an input rather than
disposed of.
An advanced version of this would be an Eco-Industrial
Park where companies design their products and
processes to use fewer virgin materials and use each
other’s byproducts, co products, or wastes as inputs [2].
Figure 01-Industrial ecology [2]
Housekeeping
Housekeeping is the simplest method of implementing
sustainable manufacturing practices.Housekeepingcan be
as simple as better inventory management, better
monitoring and scheduling of the production process,
reducing loss from leaks, spillage, and drag-out, and
making sure equipment is maintained properly. It can also
involve training your employees about sustainable
manufacturing [2].
Process Optimization
Process optimization involves changing your
manufacturing process to minimize waste, conserve raw
materials, and capture and reuse waste materials. There
may be simple things you can do to change your
production process to become more sustainable.
Maybe you can collect metal shavings for recycling,change
the steps in a painting process to use less paint, or
rearrange your machines to minimize movement [2].
Raw Material Substitution
Although it is challenging, you may be able to find ways to
substitute greener materials for hazardous materials,
chemicals with high environmental or health impacts,
materials that are non-renewable, or those that are scarce.
You may also be able to find ways to eliminate materials
that are used during your production process but don’t
remain in the final product. Example: use water-based
solvents rather than chemical solvents.Ifthematerialsyou
are eliminating are considered hazardous, this can help
you avoid regulatory costs associated with storage and
disposal of materials [2].
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 629
New Technologies
Utilizing new technologies involves incorporating more
environmentally responsible technologies and equipment
into your production process.
This can involve capital investments to purchase
equipment that uses less energyormaterialsoralternative
energy production. For example, you might invest in more
energy-efficient production equipment,systemsthatreuse
heat and energy, or more advanced water treatment
systems.
New Product Design
Design your product to be greener from the ground up.
This concept touches on all of the previous sustainable
manufacturing concepts. It can even include redesign
involving rethinking how your product is used, and may
involve:
i. Using recycled materials instead of new ones
ii. Using renewable materials
iii. Designing for easy disassembly, for recycling, or for
remanufacturing
iv. Using less packaging and more recycled or
recyclable packaging
v. Green product design can have the same benefits as
other aspects of sustainable manufacturing,
including improved resource efficiency.
Environmental Waste
EPA’s Lean and Environment Toolkit describe
environmental waste as “any unnecessaryuseofresources
or a substance released into the air, water, or land that
could harm human health or the environment.”
Environmental Waste includes:
1. Any energy, water, or other materials used
that are more than what is really needed to
meet the customer’s needs
2. Hazardous materials and substances
3. Pollutants, residuals, and other material
wastes released into the environment (air
emissions,wastewaterdischarges,hazardous
wastes, solid wastes)
As mentioned previously, adding “clean” to lean can
result in significantly greater returns for your
company. The following chart outlines how lean
wastes have an environmental impact.
Table No.01. Lean wastes and its Environmental Impact
[2].
Defective Products or
Components
Energy and materials are consumed
to make defective products, and
defective products need to be
disposed of.
Overproduction of
Components or Final
Products
Materials andenergyareconsumedto
make unnecessary products.
Products may spoil or become
obsolete. Products may require
hazardous materials
Waiting Materials may spoil or become
damage. Downtimewastesenergyfor
heating, cooling, and lighting.
Unnecessary
Transport or Motion
Energy is used for transport and
produces emissions. Transport can
cause damage or spills. More space is
needed for additional motion,
requiring heating and cooling.
Excess Inventory More packaging and space is needed
for excess inventory. Storage could
cause deterioration of products and
waste. Requires energy to heat, cool,
and light inventory space.
Extra Processing If processing is unnecessary,
increases waste and energy use.
Consumes more parts and raw
materials
4. Integrated Solid Waste Management
1. Source Reduction or “Reduce” [2].
• Preferred method: Prevents the generation of
waste in the first place
• Manufacturer: Decrease materials/energy used
during manufacturing/distribution
• Consumer: Purchase items with minimal
packages
• Includes backyard composting
Figure 02. Integrated Solid Waste Management
Approach [2].
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 630
2. Reuse
• Prolonging a product’s usable life
• Repairing items, selling them or donating them to
charity
• Using durable rather than disposable items (i.e.
reusable shopping bags, metal spoons)
• Preferable to recycling because item does not
need to be collected/reprocessed [2].
3. Recycling
• Recycling is the “process of collecting and
processing materials that would otherwise be
thrown away as trash and turning them into new
products” (US EPA, 2015).
• The benefits of recycling are many; they include
the reduction of waste sent to landfills, the
conservation of natural resources, the reduction
in pollution due to a lower need of virgin raw
materials, and the possibility of creating new jobs
within the recycling industry [6].
4. Waste Disposal resource recovery
• Resource Recovery (AKA Waste-to-Energy):
Waste is burned to produce energy
• Preferred to landfilling – reduces bulk of
municipal waste to ash and provides energy
• Downsides:
• Some items may be difficult to burn or cause
potentially harmful emissions
• Strict regulatory restrictions and high
environmental and economic costs[2].
5. Incineration & Landfilling
A waste treatment technology, which includesthe
combustion of waste for recovering energy, is
called as “incineration”. Incineration coupledwith
high temperature waste treatments are
recognized as thermal treatments. Strict
regulatory restrictions and high environmental
and economic costs. Items barely decompose in a
modern landfill Landfills facecapacityrestrictions
[2].
05. Sustainability and Product Life Cycle
The industrial sector has been responsible foremissionsof
1235 x 106 metric tons of carbon dioxide in the United
States as of 2007. This number is expected to increase to
1667x106 metric tons by 2030. Itisthereforeimperativeto
design products and processes that are environmentally
sustainable. It is well known that although only 5–7% of
the entire product cost is attributable to early design, the
decisions made during this stage lock in 70–80% of the
total product cost correspondingly; one can hypothesize
the same to be the case for environmental impacts. That is,
whether or not a product is relatively sustainableislargely
determined during the early design stage. Due to high
levels of uncertainty regarding design embodimentsatthe
early design phase, novel methods and tools are essential
to providing designers a basis for ascertaining the degree
of sustainability of a given product or process Fig.03.
Design for environment (DFE) is a practice by which
environmental considerations are integrated into product
and process engineering design procedures. DFEpractices
are meant to develop environmentally compatible
products and processes while maintaining product, price,
performance, and quality standards. Sherwin and Bhamra
suggested that the real focus for innovation should be
around stages 3 and 4 redesign and rethink. Indeed,
sustainability is inextricably linked with economic and
social considerations that differ across cultures and
technology, and combined with improved design; theycan
greatly aid this quest [4].
Figure 03- Design decisions affect every stage of a
product’s life [4].
Design for the environment enables consideration of
environmental issues as business opportunities. These
opportunities may exist for new products, processes, or
manufacturing technologies. The extent of the product’s
environmental friendliness depends on the level of DFE
implemented by the company.Therefore,mostofthelevels
of DFE have to be set up before companies start to
implement their own DFE. In general, because of the
complexity of today’s products and the departmental
organization of most companies, DFE is essentiallya cross-
functional activity fig.04. [4]
Figure 04- Approach to DFS [4].
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 631
06. Attitudes of Engineers towards Sustainability
Personal attitudes of practicingengineersareverypositive
towards sustainability, with well over 80% indicating that
they are personally involved in sustainable information
and causes outside of work. More specifically, the
responses show that 29% of practicing respondents are
extremely involved personally, 55% are somewhat
involved, 11% are neutral, and 5% are not interested. The
professional views and attitudes of practicing engineers
are generally, but not exclusively, positive. That is, the
majority of practicing engineer respondents feels that the
use of sustainable and/or green design principles in the
design, production, and operation of manufactured
products is of increasing interest to colleagues (60% of
respondents) and results in more product innovation
(66%).69%ofpracticingengineer respondentsbelievethat
sustainable and/or green design principles typically have
higher design costs, and 18% feel that incorporating
sustainable and/or green design practices is too complex
for her/his company [1].
07. Attitudes of Engineering Students
The personal attitudes of engineering students are very
positive towards sustainability, even moresothanthoseof
practicing engineers. Outside of engineering studies, 89%
are personally involved in green and sustainable
information and causes, while only 2% are not interested
and 9% are neutral [1].
08. Attitudes and Actions of Engineering
Corporations towards Sustainability
The most common sustainable technologies with which
organizations are currently involved are shown in Table2.
They include designs that use less energy and reduce
emissions (71% of respondents’ organizations), and
designs that comply with environmental standards and
regulations (also 71%) [1].
09. Factors Influencing Sustainable Design
Numerous factors influence the use of sustainable design
and practices, according to practicing engineers. Many of
these are listed in Table.Regulatoryrequirementsaremost
likely to influence organizations’ use of green design
practices and procedures (indicated by 42% of
respondents as the greatest factor and by 69% as one of
the top three factors). Client demand was cited as the
second most likely factor (by 19% of respondents as the
greatest factor and by 51% as one of the top three
factors).Rising energy costs was also indicated to be
significant factor (with 16% of respondents considering it
the greatest factor and by 53% as one of the top three
factors).Factors thatinfluencetheuseofsustainabledesign
and practices must be balanced by organizations against
other priorities, especially economics and production. In
general, most organizations consider sustainable
technologies for new products only if they yieldsomeform
of economic benefit.Morespecifically,thebalancebetween
sustainable methods and other priorities is achieved by
working respondents’ organizations as follows Table No
03.
34% consider sustainable technologies for new products
only if they are cost-saving;
27% invest in sustainable technologies only if they
increase throughput and cut costs of existing
products/processes;
24% invest in sustainable technologies if they do not
affect throughput or cost of existing products;
19% will spend extra to incorporate sustainable
technologies in most new products;
15% do not invest in sustainable technologies;
9% invest in sustainable technologies to make a
statement with some flagship products but not others [1]
Table 02. Usage and Views on Selected Sustainable
Technologies and Measures [1]
Sustainable
technology/measure
Organization
currently
Involved with
Worked
on in past
year
Designs that reduce energy use
or emissions
71 64
Designs complying with
environmental standards and
regulations
71 54
Designs using
renewable/recyclable/recycled
materials
43 27
Designs that reduce material
waste in manufacturing
40 22
Designs with non-toxic
materials
37 20
Designs with low carbon
footprints
36 21
Manufacturing with less energy
and natural resources
33 21
Manufacturing processes that
pollute less
31 15
Products that can be disposed
of safely
29 15
Products that require less
packaging
16 9
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 632
Table 03. Factors Influencing an Organization’s Use of
Green Design Practices and Procedures [1].
Factors
Most
likely
(%)
One of top
three Most
likely (%)
Regulatory requirements 42 69
Client demand 19 51
Rising energy costs 16 53
Ability to gain a market
advantage
6 30
Long-termreturnoninvestment 5 25
Personal sense of
environmental responsibility
5 19
Government/industry
incentives
3 32
None of the above 3 5
10. Barriers and Challenges
Based on comments made by respondents to the survey,
there exist many barriers and challenges to enhancing the
way sustainability is utilized byengineersandtheextentto
which it is incorporated in engineering work [1].
Economics and cost. Respondents indicated that cost is a
major consideration when deciding to factorsustainability
into a new product or process. The concerns include high
start-up and retooling costs and the long-term nature of
the return on an investment in sustainability.
Competitiveness. Many feel that adopting sustainable
practices in engineering will make the work non-
competitive relative to those, within a country or abroad,
that do not enhance sustainability.
Market forces and customer demand. Many believe that
expanded sustainable engineering is hindered by
inadequate customer demand for more sustainable
engineering and a lack of correspondingmarketforcesthat
drive sustainable engineering practices.
Corporate culture and commitment. There is normally
not an ingrained corporate culture that supports and
fosters sustainable engineering in companies, and other
corporate priorities usually receive much greater
attention. Further a firm commitment from corporate
leaders is commonly not present.
Incentives. Corporations often list inadequate incentives
from governments as a barrier to improved engineering
sustainability, while practicing engineers often cite a lack
of employee Incentives.
Inertia and change. With many corporations and
engineers, there is often a reluctance to change, combined
with an inertia, that renders it difficult to introduce
sustainable engineering practices. This is partly due to the
transitional nature of a shift to more sustainable
engineering practices and the uncertainty regarding the
ultimate destination.
Practices. Commonlyacceptedandconsistentpracticesfor
performing sustainable engineering and for developing
sustainable products are often indicated to be lacking. In
particular, it is often indicated that an improved
understanding of best practices would be very useful.
Assessment. Corresponding to the previous point, it is
often noted that there is a significant lack of commonly
accepted and consistent measures for assessing
sustainable engineering and, more broadly, sustainability.
Codes and standards. Often engineers cite the lack of
codes and standardsforsustainablepracticesandproducts
as a hindrance to the enhancement and extension of
sustainable engineering practices.
Regulations and laws. There are few regulationsandlaws
that call for sustainable engineering, or set sustainability
thresholds that need to be met.
Success stories, failures and best practices.Manyindicate
that they feel that more reports of successful applications
of sustainable engineering are needed to foster further
uses, and that unsuccessful attempts to incorporate
sustainable engineering into processes and products need
to be explained to help others learn.
Confidentiality. The need for confidentiality to protect
competitive advantages often is cited as hindering the
sharing of knowledge and lessons learned from applying
sustainable engineering.
Short-term focus. The common focus on short-term
benefits, rather than a life-cycle approach to benefits,
usually hinders the long-term decision making needed to
support sustainable engineering practices [01].
11. Summary and Conclusion
To become more sustainable and environment friendly it’s
mandatory to focus strongly on implementation of
sustainability concepts, actions and measures by
engineers. The governing points sustainable engineering
are regulatory requirements, rising energycostsandclient
demand. An integrated approach includes use less energy,
emission reduction, manufacturing processes thatuseless
energy and natural resources, utilizing renewable,
recyclable and recycled materials, and reducing material
wastes. Integrating downstream life cycle data into eco-
design tools is essential to achieving true sustainable
product development. Numerous challenges remain to
expansion of sustainable engineering, especially
economics, and these need to be addressed to simplify
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
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© 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 633
increased shifts towards sustainability in engineering. If
we failed to become sustainable and environment friendly
the consequences could be catastrophic to us and our next
generations.
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Design: A Review”, Article in Journal ofMechanical Design ·
September 2010.
5.Green Growth: A New Model for Sustainable
Development in Asia,
https://www.youtube.com/watch?v=NXBopuAyO0w
6. Jonatan Autio, “Recyclingandsustainable environmental
practices in the plastics industry”, Bachelor’s Thesis
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IRJET- An Integrated Approach Towards Sustainable Design and Manufacturing in View of Attitudes and Challenges

  • 1. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 626 An Integrated Approach towards Sustainable Design and Manufacturing In View of Attitudes and Challenges Vasagade Vijay G1 , Varpe Rohan S2, Danwade Arshad S3.,Kolekar Mahendra R4,Patil Avdhut S5,Banne Ashwini L6 1(Head of Department, Mechanical Engineering, Y. D. Mane Institute of Tech., Kagal), 2(Head of Department, Science and humanities, Y. D. Mane Institute of Tech., Kagal), 3,4,5,6(Lecturer, Mechanical Engineering, Y. D. Mane Institute of Tech., Kagal), ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract: In today day, sustainability in mechanical engineering play a vital role, as all conventional sources of energy either going to vanish in upcoming centuries or provide inefficiency in energy production or consumption. Through integrated approach we can offer resilient focus on the implementation of sustainability concepts, actions and measures in design and manufacturing. Sustainable technology on urgency uses less energy and natural resources reduces emissions and material wastes and utilizing more renewable, recyclable and recycled materials. Sustainable engineering mainly consider regulatory requirements, rising energy costs and client demand, however to incorporate sustainability technology attitudes of engineers and companies must considered as well as economics, barriers in execution need to be addressed. Keywords: Sustainability, attitudes, barriers, wastes, environment, design, manufacturing. 1. Introduction The report framed by Brundtland commission defines the sustainable development as “the development that meets the needs of the present, without compromisingtheability for the future generation to meet their own needs” [2].The Asia having rich biodiversity and natural resources and dynamic economy and more than 4 million of peoples aspiring from prosperous and secure future have seen rapid economic growth in recent decades. However rising population, growing resource scarcity, energy and food security and natural disaster made worse by climate change and are affecting peoples across the region particularly poor and marginalized peoples [5]. The message is clear for the millions having lifted out of poverty the current models are unsustainable and inequitable, a new economic model is need that boosts, development, reduces poverty, and provide high qualityof life. The solution is green growth, green economy which is –resources efficient, low carbon producer, and socially inclusive. Many countries from Asia are already transforming to thisnewparadigm,theirexperienceshows right policies, knowledge skills and incentives can influence behavior and catalyze investment in green business and activities. Increasingly countries are using low emission development strategies (LEDS) as the foundation for achieving green growth [5]. 2. Ecological Imbalances- Causes and Consequences The main reason for imbalance in world’s ecosystem is dominance of mankind in the global ecosystem and his hostile alternation of it to satisfy his need and greed. Some specific causes for eco-imbalance are as follows [3] Changing Hydrology Irrigation is a major consumer of water in many countries. When river water is used for irrigation by constructing canals, the rate of water flow in the river is reduced and the quality of water down-stream may decline. Building large dams for irrigation and power generation changes the ecosystem of the area impounded for the reservoir. In the impoundment area, a large number of trees may be felled, fertile land may be submerged under water and a large human population may be displaced. In addition, irrigation increases the water vapour contents of the surrounding air, altersthesurfacerun-offcharacteristicsof the land and sometimes, increases the concentration of pesticides in the underlying ground water. Large-Scale Use of Fertilizers Plants rarely use more than 50-60 percent of the nitrogen chemical fertilizers. The residual nitrogen in the form of nitrate is likely to pollute ground and surface waters, causing over-enrichment of nutrients and algal blooms in rivers and lakes. Some of the extra nitrates may also be converted into nitrogen oxides by the action of certain soil bacteria. In order to reduce the adverse ecological impact of the large-scale use of fertilizers, researches are being conducted currently to determine the extent of fertilizer use and minimize environmental pollution, while maximizing food production.
  • 2. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 627 Large-Scale Use of Pesticides Pesticides are the chemicals used to eradicate pests. Pesticides are classified as insecticides, Rodenticides, fungicides, nematicides, herbicides and so on. However, none of these chemicals are so specific as to kill only the target species. As a result, they pose hazards also to other organisms including man. Changes in Earth's Surface The atmosphere and the ecosystem canbeaffected bothby human activities and natural changes in the physical and biological properties of the earth's surface. Modifications (including deforestations and swamp drainage) that reduce evaporation from an area and alter the amount of energy available for evaporation, thereby changing the energy balance at the earth's surface. Acid Rain In common language, "acid rain" means the presence of good amount of acids in rain water. Acid rain is one of the major effects of air pollution. Large amounts of sulphur dioxide and oxides of nitrogen are released into the atmosphere through the burning of fossil fuels (oil and coal) and fuel wood. These oxides (SOx and NOx) react with the atmospheric water vapour to produce sulphuric acid (H2SO4) and nitric acid (HNO3), which then return to the earth's surface with rain water. Acid rainposesa major threat to ecological balance with potential for both macro and microbiological effectsonplantsandanimals.Acidrain not only affects crops, forests and aquatic ecosystems adversely, but it also leches exposed rocks, there by damaging ancient monuments such as the Taj Mahal.Since many famous structures have been constructed from soft rocks, acid rain has already damaged many ancient monuments of great historical value Green-House Effect The atmosphere of the earth is said to act like a "green- house" and carbon dioxide is one of the major components of the atmosphere which stimulates the "green-house effect". The green-house becomes warm because glass is transparent to visible light but practically opaque to infrared radiation. As a result, the sunlight can pass through the glass walls of the green-house and can get absorbed by the soil inside it. It is then reemitted as heat rays (infrared radiation), which cannot pass through the glass walls. As a result, the temperature inside the green- house rises above the ambient temperature. The rising proportion of carbon dioxide is causing great concern because the green-house effect will result in higher average temperature on the surface of the earth (the so- called "global warming”). If this happens, there will be wide-spread climatic change with possibly disastrous consequences. The rising temperaturecouldmeltthepolar ice caps, submerging much of low-lying land mass and many coastal cities (like London, New York, Mumbai, Kolkata and Chennai) under sea water. Similarly, fertile land may be turned into desertandagricultural production may fall drastically due to global warming. Forest Fires Fire is still employed to help man hunt wild animals, clear forests and obtain charcoal for fuel. Repeated forest fires, combined with overgrazing, can seriously degrade the environment and harm the ecosystem. Overgrazing Environmental degradation and ecological damage arising from overgrazing are wide-spread in aridand semi-arid regions of the Near-Eastern countries, Central Asia andthe Mediterranean basin for many years. One important consequence of overgrazing is desertification (i.e., a process ofreductionoreliminationof the productive capacity of land that leads ultimately to desert-like formation). About 95% of the land in the arid and semi-arid regions of the world is in the processes of desertification Clearance of Forests Reduced the world's original forest area by at least 33%. Man has converted forests to grasslands and crop lands.In addition to the clearance of forests for agriculture and animal husbandry, the forests are being destroyed for timber and fuel-wood. Integrated approaches to Sustainability To achieve sustainability it is favorable to integrate engineering design, manufacturing,environmentconcerns and attitude. To understand these parameters,itisfeasible to design manufacture the product or processeskeepingin mind environment, we have discussed it in detail as follows. Fig a. Integrated approach to Sustainability 3. Sustainable Design and Manufacturing Sustainability is the intersection of these three concepts; this is “people, planet, and profit” Sustainable Manufacturing The Green Suppliers Network (DOC/EPA) defines clean manufacturing as “a systematic approach to eliminating waste by optimizing use and selection of resources and technologies, thereby lessening the impact on the environment.”Sustainable manufacturing focuses on both how the product is made as well as the product’s
  • 3. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 628 attributes. This includes the inputs, the manufacturing processes, and the product’s design. Sustainable manufacturing includes things suchasmaking products using less energy and materials, producing less waste, and using fewer hazardous materials as well as products that have greener attributes such as recyclability or lower energy use.Sustainable manufacturing practices can range from very simple processimprovementstolarge investments in new technologies and productredesign[2]. Clean Technologies Clean or Environmental Technologies are technologies associated with things like environmental protection, assessment, compliance with environmental regulations, pollution control and prevention, waste management, remediation of contaminated property, design and operation of environmental infrastructure, and the provision and delivery of environmental resources. Renewable energy technologies are also considered to be clean technologies. Examples of clean technologies include technologies for wastewater treatment, recycling,solidwastemanagement, solar panels and wind turbines. Many clean technologies can be used to green the manufacturing process and are therefore important to sustainable manufacturing [2]. Green Products Making “green products” can be seen as partofsustainable manufacturing, and we will discussitinmoredetail later. A green product can be any product that is designed to reduce its environmental impact. A key concept is that environmental concerns and impacts are taken into account from the beginning of the product design process. This is important because most of a product’s environmental impact is determined in the design phase. The product may be made of recycled materials, designed so that it can be easily recycled, made without hazardous materials, or produced with less packaging. There are no accepted standards for what constitutesa “greenproduct,” although there are rules from the Federal Trade Commission about making environmental marketing claims. There are also many eco-labeling programs that are used to identify and market green products [2]. Industrial ecology “The study of the physical, chemical, and biological interactions and interrelationships both within and between industrial and ecological systems” Fig.01 It is based on systems thinking – industry is an interdependent part of the overall ecosystem.Itstudiesthe material and energy flows through the system to find inefficiency and waste. One of the goals of industrial ecology is to move industry from a linear to a cyclical or closed system where waste is used as an input rather than disposed of. An advanced version of this would be an Eco-Industrial Park where companies design their products and processes to use fewer virgin materials and use each other’s byproducts, co products, or wastes as inputs [2]. Figure 01-Industrial ecology [2] Housekeeping Housekeeping is the simplest method of implementing sustainable manufacturing practices.Housekeepingcan be as simple as better inventory management, better monitoring and scheduling of the production process, reducing loss from leaks, spillage, and drag-out, and making sure equipment is maintained properly. It can also involve training your employees about sustainable manufacturing [2]. Process Optimization Process optimization involves changing your manufacturing process to minimize waste, conserve raw materials, and capture and reuse waste materials. There may be simple things you can do to change your production process to become more sustainable. Maybe you can collect metal shavings for recycling,change the steps in a painting process to use less paint, or rearrange your machines to minimize movement [2]. Raw Material Substitution Although it is challenging, you may be able to find ways to substitute greener materials for hazardous materials, chemicals with high environmental or health impacts, materials that are non-renewable, or those that are scarce. You may also be able to find ways to eliminate materials that are used during your production process but don’t remain in the final product. Example: use water-based solvents rather than chemical solvents.Ifthematerialsyou are eliminating are considered hazardous, this can help you avoid regulatory costs associated with storage and disposal of materials [2].
  • 4. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 629 New Technologies Utilizing new technologies involves incorporating more environmentally responsible technologies and equipment into your production process. This can involve capital investments to purchase equipment that uses less energyormaterialsoralternative energy production. For example, you might invest in more energy-efficient production equipment,systemsthatreuse heat and energy, or more advanced water treatment systems. New Product Design Design your product to be greener from the ground up. This concept touches on all of the previous sustainable manufacturing concepts. It can even include redesign involving rethinking how your product is used, and may involve: i. Using recycled materials instead of new ones ii. Using renewable materials iii. Designing for easy disassembly, for recycling, or for remanufacturing iv. Using less packaging and more recycled or recyclable packaging v. Green product design can have the same benefits as other aspects of sustainable manufacturing, including improved resource efficiency. Environmental Waste EPA’s Lean and Environment Toolkit describe environmental waste as “any unnecessaryuseofresources or a substance released into the air, water, or land that could harm human health or the environment.” Environmental Waste includes: 1. Any energy, water, or other materials used that are more than what is really needed to meet the customer’s needs 2. Hazardous materials and substances 3. Pollutants, residuals, and other material wastes released into the environment (air emissions,wastewaterdischarges,hazardous wastes, solid wastes) As mentioned previously, adding “clean” to lean can result in significantly greater returns for your company. The following chart outlines how lean wastes have an environmental impact. Table No.01. Lean wastes and its Environmental Impact [2]. Defective Products or Components Energy and materials are consumed to make defective products, and defective products need to be disposed of. Overproduction of Components or Final Products Materials andenergyareconsumedto make unnecessary products. Products may spoil or become obsolete. Products may require hazardous materials Waiting Materials may spoil or become damage. Downtimewastesenergyfor heating, cooling, and lighting. Unnecessary Transport or Motion Energy is used for transport and produces emissions. Transport can cause damage or spills. More space is needed for additional motion, requiring heating and cooling. Excess Inventory More packaging and space is needed for excess inventory. Storage could cause deterioration of products and waste. Requires energy to heat, cool, and light inventory space. Extra Processing If processing is unnecessary, increases waste and energy use. Consumes more parts and raw materials 4. Integrated Solid Waste Management 1. Source Reduction or “Reduce” [2]. • Preferred method: Prevents the generation of waste in the first place • Manufacturer: Decrease materials/energy used during manufacturing/distribution • Consumer: Purchase items with minimal packages • Includes backyard composting Figure 02. Integrated Solid Waste Management Approach [2].
  • 5. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 630 2. Reuse • Prolonging a product’s usable life • Repairing items, selling them or donating them to charity • Using durable rather than disposable items (i.e. reusable shopping bags, metal spoons) • Preferable to recycling because item does not need to be collected/reprocessed [2]. 3. Recycling • Recycling is the “process of collecting and processing materials that would otherwise be thrown away as trash and turning them into new products” (US EPA, 2015). • The benefits of recycling are many; they include the reduction of waste sent to landfills, the conservation of natural resources, the reduction in pollution due to a lower need of virgin raw materials, and the possibility of creating new jobs within the recycling industry [6]. 4. Waste Disposal resource recovery • Resource Recovery (AKA Waste-to-Energy): Waste is burned to produce energy • Preferred to landfilling – reduces bulk of municipal waste to ash and provides energy • Downsides: • Some items may be difficult to burn or cause potentially harmful emissions • Strict regulatory restrictions and high environmental and economic costs[2]. 5. Incineration & Landfilling A waste treatment technology, which includesthe combustion of waste for recovering energy, is called as “incineration”. Incineration coupledwith high temperature waste treatments are recognized as thermal treatments. Strict regulatory restrictions and high environmental and economic costs. Items barely decompose in a modern landfill Landfills facecapacityrestrictions [2]. 05. Sustainability and Product Life Cycle The industrial sector has been responsible foremissionsof 1235 x 106 metric tons of carbon dioxide in the United States as of 2007. This number is expected to increase to 1667x106 metric tons by 2030. Itisthereforeimperativeto design products and processes that are environmentally sustainable. It is well known that although only 5–7% of the entire product cost is attributable to early design, the decisions made during this stage lock in 70–80% of the total product cost correspondingly; one can hypothesize the same to be the case for environmental impacts. That is, whether or not a product is relatively sustainableislargely determined during the early design stage. Due to high levels of uncertainty regarding design embodimentsatthe early design phase, novel methods and tools are essential to providing designers a basis for ascertaining the degree of sustainability of a given product or process Fig.03. Design for environment (DFE) is a practice by which environmental considerations are integrated into product and process engineering design procedures. DFEpractices are meant to develop environmentally compatible products and processes while maintaining product, price, performance, and quality standards. Sherwin and Bhamra suggested that the real focus for innovation should be around stages 3 and 4 redesign and rethink. Indeed, sustainability is inextricably linked with economic and social considerations that differ across cultures and technology, and combined with improved design; theycan greatly aid this quest [4]. Figure 03- Design decisions affect every stage of a product’s life [4]. Design for the environment enables consideration of environmental issues as business opportunities. These opportunities may exist for new products, processes, or manufacturing technologies. The extent of the product’s environmental friendliness depends on the level of DFE implemented by the company.Therefore,mostofthelevels of DFE have to be set up before companies start to implement their own DFE. In general, because of the complexity of today’s products and the departmental organization of most companies, DFE is essentiallya cross- functional activity fig.04. [4] Figure 04- Approach to DFS [4].
  • 6. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 631 06. Attitudes of Engineers towards Sustainability Personal attitudes of practicingengineersareverypositive towards sustainability, with well over 80% indicating that they are personally involved in sustainable information and causes outside of work. More specifically, the responses show that 29% of practicing respondents are extremely involved personally, 55% are somewhat involved, 11% are neutral, and 5% are not interested. The professional views and attitudes of practicing engineers are generally, but not exclusively, positive. That is, the majority of practicing engineer respondents feels that the use of sustainable and/or green design principles in the design, production, and operation of manufactured products is of increasing interest to colleagues (60% of respondents) and results in more product innovation (66%).69%ofpracticingengineer respondentsbelievethat sustainable and/or green design principles typically have higher design costs, and 18% feel that incorporating sustainable and/or green design practices is too complex for her/his company [1]. 07. Attitudes of Engineering Students The personal attitudes of engineering students are very positive towards sustainability, even moresothanthoseof practicing engineers. Outside of engineering studies, 89% are personally involved in green and sustainable information and causes, while only 2% are not interested and 9% are neutral [1]. 08. Attitudes and Actions of Engineering Corporations towards Sustainability The most common sustainable technologies with which organizations are currently involved are shown in Table2. They include designs that use less energy and reduce emissions (71% of respondents’ organizations), and designs that comply with environmental standards and regulations (also 71%) [1]. 09. Factors Influencing Sustainable Design Numerous factors influence the use of sustainable design and practices, according to practicing engineers. Many of these are listed in Table.Regulatoryrequirementsaremost likely to influence organizations’ use of green design practices and procedures (indicated by 42% of respondents as the greatest factor and by 69% as one of the top three factors). Client demand was cited as the second most likely factor (by 19% of respondents as the greatest factor and by 51% as one of the top three factors).Rising energy costs was also indicated to be significant factor (with 16% of respondents considering it the greatest factor and by 53% as one of the top three factors).Factors thatinfluencetheuseofsustainabledesign and practices must be balanced by organizations against other priorities, especially economics and production. In general, most organizations consider sustainable technologies for new products only if they yieldsomeform of economic benefit.Morespecifically,thebalancebetween sustainable methods and other priorities is achieved by working respondents’ organizations as follows Table No 03. 34% consider sustainable technologies for new products only if they are cost-saving; 27% invest in sustainable technologies only if they increase throughput and cut costs of existing products/processes; 24% invest in sustainable technologies if they do not affect throughput or cost of existing products; 19% will spend extra to incorporate sustainable technologies in most new products; 15% do not invest in sustainable technologies; 9% invest in sustainable technologies to make a statement with some flagship products but not others [1] Table 02. Usage and Views on Selected Sustainable Technologies and Measures [1] Sustainable technology/measure Organization currently Involved with Worked on in past year Designs that reduce energy use or emissions 71 64 Designs complying with environmental standards and regulations 71 54 Designs using renewable/recyclable/recycled materials 43 27 Designs that reduce material waste in manufacturing 40 22 Designs with non-toxic materials 37 20 Designs with low carbon footprints 36 21 Manufacturing with less energy and natural resources 33 21 Manufacturing processes that pollute less 31 15 Products that can be disposed of safely 29 15 Products that require less packaging 16 9
  • 7. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 632 Table 03. Factors Influencing an Organization’s Use of Green Design Practices and Procedures [1]. Factors Most likely (%) One of top three Most likely (%) Regulatory requirements 42 69 Client demand 19 51 Rising energy costs 16 53 Ability to gain a market advantage 6 30 Long-termreturnoninvestment 5 25 Personal sense of environmental responsibility 5 19 Government/industry incentives 3 32 None of the above 3 5 10. Barriers and Challenges Based on comments made by respondents to the survey, there exist many barriers and challenges to enhancing the way sustainability is utilized byengineersandtheextentto which it is incorporated in engineering work [1]. Economics and cost. Respondents indicated that cost is a major consideration when deciding to factorsustainability into a new product or process. The concerns include high start-up and retooling costs and the long-term nature of the return on an investment in sustainability. Competitiveness. Many feel that adopting sustainable practices in engineering will make the work non- competitive relative to those, within a country or abroad, that do not enhance sustainability. Market forces and customer demand. Many believe that expanded sustainable engineering is hindered by inadequate customer demand for more sustainable engineering and a lack of correspondingmarketforcesthat drive sustainable engineering practices. Corporate culture and commitment. There is normally not an ingrained corporate culture that supports and fosters sustainable engineering in companies, and other corporate priorities usually receive much greater attention. Further a firm commitment from corporate leaders is commonly not present. Incentives. Corporations often list inadequate incentives from governments as a barrier to improved engineering sustainability, while practicing engineers often cite a lack of employee Incentives. Inertia and change. With many corporations and engineers, there is often a reluctance to change, combined with an inertia, that renders it difficult to introduce sustainable engineering practices. This is partly due to the transitional nature of a shift to more sustainable engineering practices and the uncertainty regarding the ultimate destination. Practices. Commonlyacceptedandconsistentpracticesfor performing sustainable engineering and for developing sustainable products are often indicated to be lacking. In particular, it is often indicated that an improved understanding of best practices would be very useful. Assessment. Corresponding to the previous point, it is often noted that there is a significant lack of commonly accepted and consistent measures for assessing sustainable engineering and, more broadly, sustainability. Codes and standards. Often engineers cite the lack of codes and standardsforsustainablepracticesandproducts as a hindrance to the enhancement and extension of sustainable engineering practices. Regulations and laws. There are few regulationsandlaws that call for sustainable engineering, or set sustainability thresholds that need to be met. Success stories, failures and best practices.Manyindicate that they feel that more reports of successful applications of sustainable engineering are needed to foster further uses, and that unsuccessful attempts to incorporate sustainable engineering into processes and products need to be explained to help others learn. Confidentiality. The need for confidentiality to protect competitive advantages often is cited as hindering the sharing of knowledge and lessons learned from applying sustainable engineering. Short-term focus. The common focus on short-term benefits, rather than a life-cycle approach to benefits, usually hinders the long-term decision making needed to support sustainable engineering practices [01]. 11. Summary and Conclusion To become more sustainable and environment friendly it’s mandatory to focus strongly on implementation of sustainability concepts, actions and measures by engineers. The governing points sustainable engineering are regulatory requirements, rising energycostsandclient demand. An integrated approach includes use less energy, emission reduction, manufacturing processes thatuseless energy and natural resources, utilizing renewable, recyclable and recycled materials, and reducing material wastes. Integrating downstream life cycle data into eco- design tools is essential to achieving true sustainable product development. Numerous challenges remain to expansion of sustainable engineering, especially economics, and these need to be addressed to simplify
  • 8. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 10 | Oct 2018 www.irjet.net p-ISSN: 2395-0072 © 2018, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 633 increased shifts towards sustainability in engineering. If we failed to become sustainable and environment friendly the consequences could be catastrophic to us and our next generations. References 1. Marc A. Rosen, “Engineering and Sustainability: Attitudes and Actions”, Faculty of EngineeringandApplied Science, University of Ontario Institute of Technology, Sustainability 2013, 5, 372-386; doi: 10.3390/su5010372. 2. Different data and record collected (PPT) from -“U.S. Department of Commerce Office of Energy and Environmental Industries” United Nations Environment Programme and Delft University of Technology “Design for Sustainabilitya Step- by-Step Approach”, PPT Record U.S. Department of Commerce Office of Energy and Environmental Industries Garner, Andy and Keoleian, Gregory A, Ph.D. National Pollution Prevention Center for Higher Education, “Industrial Ecology: An Introduction.” Eco-Innovation in Industry: EnablingGreenGrowth”OECD “Government Strategies and Policies for Cleaner Production.” United Nations Environmental Programme and “Eco-Innovation in Industry: Enabling Green Growth” OECD. “Vinyl Flooring Texas Tile Manufacturing LLC, Additional Savings are a Pleasant Surprise.” DOE Industrial Technologies Program. Government Strategies and Policies for Cleaner Production.” United Nations Environmental Programme and “Eco-Innovation in Industry: Enabling Green Growth” OECD “Raw Material Substitution: North American Decal” Environment Canada. “Lean and Environment Toolkit,” EPA“Green Suppliers Network Training” Green Suppliers Network. Image: Fairfax County Solid Waste Mat 3. Dr. Ramamohana Reddy Appannagari, “Ecological Imbalances Causes and Consequences”, Golden Research Thoughts, Volume - 6 | Issue - 6 | December – 2016 4. Karthik Ramani et.al, “Integrated Sustainable Life Cycle Design: A Review”, Article in Journal ofMechanical Design · September 2010. 5.Green Growth: A New Model for Sustainable Development in Asia, https://www.youtube.com/watch?v=NXBopuAyO0w 6. Jonatan Autio, “Recyclingandsustainable environmental practices in the plastics industry”, Bachelor’s Thesis Environmental Engineering Vasa 2015