Int. J. Renewable Energy & Environmental Engineering
ISSN 2319-5347, ISI Impact Factor: 0.763
VOLUME 04 NO. 01 JANUARY 2016:
Title:
Combustion Characteristics of a Common-rail Compression
Ignition Engine Fueled with Biodiesel Blends
Authors:
Vu Nguyen Hoang, Phuong X. Pham
Abstract: Biodiesels
are well-known as an alternative fuel for the
compression ignition engine, however,it is notable that
the difference between molecular structures of
biodiesels and fossil diesel adds to the complexity of
combustion process of diesel engines where turbulent,
three-dimensional and multiphase processes occurring at
high temperature and pressure conditions. An
investigation of combustion process therefore is crucial
in understanding the fuel-air cycle of compression
ignition engines when operating with biodiesel
blends.This study extensively analyses combustion phases
(start and end of auto-ignition, ignition delay, and
start of diffusion combustion) for a common-rail
compression ignition engine operating with
biodiesel-diesel blend(B0, B10 and B20). The analyse was
performed employing in-cylinder pressure and its
derivatives, net heat release rate, and engine vibration
signals under a number of engine speed and fuel
injection timing conditions.Equivalent duration of
occurrences of maximum and minimum values of the second
derivative of in-cylinder pressure observed for all
biodiesel blends tested here could suggest that the
auto-ignition duration is independent of the fuel
blends, albeit the start of combustion occurs earlier
with B10 and B20 owing their higher cetane value
compared to that of fossil diesel.
Keywords: bioethanol, corn mash, fermentation,
Saccharomyces cerevisiae, temperature effect, heat shock
Pages:
13-18