Performance and emission characteristics of direct injection C.I engine retrofitted with mono-CNG system
Diesel engines are widely used in logistics and haulage as vehicular prime movers. In the mechanized and fast-moving forward world of today, the consumption of petroleum products has become an important yardstick of a country's prosperity. This ever-increasing consumption...
| Main Authors: | , , , |
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| Format: | Article |
| Published: |
Trans Tech Publications
2014
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/8979/ http://eprints.uthm.edu.my/8979/1/J1527_013c05352aa88b1f58d59249bc310e8e.pdf |
| Summary: | Diesel engines are widely
used in
logistics
and
haulage as vehicular
prime
movers.
In
the
mechanized
and
fast-moving forward world of today, the consumption
of
petroleum
products has
become
an
important yardstick
of
a country's prosperity. This ever-increasing consumption has
led
the
world
to
face the twin challenge
of
energy shortage
and
environmental deterioration. Natural gas
has been one
of the
highly
considered alternative fuels for
both
spark ignition
(S.1)
and compressed
ignition (C.I.) engines. The advantages and benefits
of
CNG
have
made
it the preferred choice as
alternative fuel
in
the transportation sector. This present study focused on the effects of retrofitted
direct injection C.I. engine
with
mono-CNG system
to
its
performance and exhaust emissions. The
engine speed was varied from 850
rpm
to
2500
rpm,
with
load test conditions
of
ONm,
27.12Nm
and
53.23Nm,
using
an
engine dynamometer. Results indicated that CNG has
the
potential
to
provide
better fuel consumption compared
to
diesel fuel. Meanwhile, the characteristics
of
exhaust gas
emissions such as smoke opacity and
C02
gave
promising results compared
to
CO, HC and NOX, for
diesel combustion. |
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