Image Study Diesel Power Plants - MAN Diesel & Turbo

Image Study
6. SUB-HYPOTHESIS 2:
ENGINE TECHNOLOGY AND ENVIRONMENTAL AWARENESS ARE
COMPATIBLE
Of all four sub-hypotheses examined in this
study, this one probably creates the widest
platform for discussion. That might be due to
the fact that people think of fuming old and
greasy motors when thinking about Diesel
engines or engine-based technology in general.
To find out if this picture is actually justified and
to shed some light on this topic in general, the
following paragraphs have a closer look from
an externality perspective.
Externalities, or external costs, arise when the
social or economic activities of one group or
persons have an impact on another group and
when that impact is not fully accounted, or
compensated for, by the first group. Measuring
and analyzing externalities is an often-
discussed and very complex subject. The
concept is deeply anchored in economic theory
and is becoming increasingly important when
evaluating different sources of energy.
The main damages caused by externalities
effect human health, crops, materials and the
environment in general. And while this subject
can be analyzed in many different ways, we
chose to focus on two distinct areas to analyze
the statement that engine-based technology
and environmental awareness can be
compatible. On the following pages we will
have a closer look at CO2 emissions and the
consumption of water. The second section
within this paragraph will focus on fuel
versatility and combined renewable and
engine-based power plants, all within the
context of sub-hypothesis 2.
Carbon Dioxide Emissions
Today, the significant negative impact of
carbon dioxide (CO2) emissions on our climate
is widely known. In most developed countries,
the largest source of CO2 emissions is the
combustion of fossil fuels. And the process of
generating electricity usually tops the list in this
category, making it the single largest source of
those emissions.
Carbon dioxide emissions are always
dependent on the carbon content of the fuel
and the efficiency of the technology being used.
Table 1 gives an overview of the carbon
dioxide emissions of typical fossil-based power
plants that are generated during the electricity
production process and also puts the
emissions in context with the respective plant
efficiencies (generally based on state-of-the-art
technology).
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