| dc.description.translatedabstract | Environmental degradation began in prehistoric times and took alarming proportions after the
industrial revolution, which was accompanied by the rapid development of technology.
Humans aimingatsociety evolution, led to overexploitation and wasteful use of natural
resources, pollution and the degradation and destruction of healthy living conditions and
evolution of the human species on planet Earth thus becomes more imperative to ensure
environmental sustainability. The future of clean air and the depleted ozone by emissions is a
huge threat for the future, and must now find solutions for the sustainability of our future
generations.
The environmental sensitivity, awareness of climate change and depletion of energy resources
increasingly leads to finding alternative energy sources, and especially renewables. Reducing
emissions in existing motor vehicles and more generally the transport, is a key challenge in
moving towards sustainable development and a safeguarding of the public and social interest,
and compliance with environmental regulations.
The rapid and growing spread of cars with internal combustion engines in recent decades has
contributed largely to two particularly important problems requiring solution anyway. In the
spirit of the new data and based on European policy on performance standards for emissions
from new passenger cars and the Community's integrated approach to reduce CO2 emissions
from light-duty vehicles, has introduced stricter limits on pollutant emissions from light road
vehicles with the entry into force of the standard Euro 6.
The Euro 6 standard implemented by September 1, 2014 and the approval for implementation
by September 1, 2015, regarding the registration and sale of new types of vehicles. Therefore,
vehicle manufacturers led the design and manufacture of electric vehicles, while last intensify
their efforts for mass production and promotion of electric vehicles. However, in light of the
economic crisis possible new vehicle market that covers this standard is ominous for a median
household. Therefore modifications and alternative technologies to existing traffic vehicles
giving solution with reduced implementation costs, reduced emissions and reduced fuel
consumption, which on average is depreciated over a year.
Therefore, the objective of this thesis is to investigate whether combined antipollution
technologies and alternative fuels could be implemented in petrol cars and diesel engines
retrospectively to further reduce emissions on the one hand and reduce fuel consumption on
the other hand.
Specifically, antifouling technologies are separated and combined in existing motor vehicles,
depending on the type of fuel used in gasoline and diesel. Implementation and explanation of
the technologies in two vehicle types, using dual fuel is conducted and exhaust emissions are
studied experimentally after a road trip of 100km in the city of Nicosia.
The aim of this experimental research is to combine the production of HHO in a customizable
interface and channeled it into the fuel supply system with booster combustion and reduces
exhaust emissions to the simple process of chemical electrolysis, without the need for
additional storage tanks in the car. In extension of this experimental research the dual fuel
operation in four-cylinder turbocharged engine (CI) and (SI) with indirect injection gas as
tertiary source is also explored. In this experiment we investigated the use of 40% of the
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mixture of gas composed of hydrogen (in a ratio of 70:30) as the tertiary fuel and hydrogen
flow rate of 1.2 L / min and mixed with diesel fuel and gasoline. Further installation systems
such as stop / start and telematics Mobile-eye correcting driving behavior of the driver is
explored which also contribute to reducing emissions.
Decreased emissions were observed with the help of Mobile-Eye because of the sudden
dropped accelerations, the control of exceeding the optimal speed, the excess idling stationary
as well as the stability of the vehicle to the driving line without deviating left and right.
Further in both vehicles technology was placed stop / start. The extracted measurement results
shows of both vehicles were compared to the manufacturer's measurements. Finally a further
comparison was conducted of the final development of the gasoline model with a hybrid
vehicle PRIUS 2 in terms of CO2 emissions.
The future assessment shows that hybrid systems will be the first choice of consumers up to
2020. By reducing the price of the batteries which should contribute so significantly and the
EU with new vehicle purchase grants of this type, the reduction of marketing authorization
will become the first choice market in connection with the upward price of hydrocarbons.
Additionally for the future potential of electric mobility, the EU should release funds for
infrastructure requirements needed for each vehicle type with zero emissions.
From a purely technical perspective electrification / hybridization of the drive system is an
effective measure to reduce energy consumption and greenhouse gas emissions from vehicles.
However, the power supply means and a higher investment cost of the motor. The maximum
degree of power depends on the cost of the basic elements and the specific economic and
political conditions (country of manufacture). The cost of buying a full electric vehicle is
advantageous for damping when gasoline prices are higher than 2 € per liter so as to
consumers to respond.
The earth is a system that miraculous balance and harmony is disturbed by man and his
activities. Once he prevailed on the earth ecosystem as a dominant species and began to
intervene in this disrupting the natural balance of activities and projects, problems began to be
created. The big question is, will the current generation be able to "prevent" to provide a
sustainable environment without compromising the ability of future generations to meet their
own needs... | el_GR |
