In this experimental
investigation, Kariba weed biodiesel
(KSB)
blended with n-pentane has been tested in conventional
and ceramic-coated thermal barrier engines, and the results have been
compiled and presented. A single-cylinder, four-stroke, direct injection
diesel engine has been used as the test engine with eddy current dynamometer
loading as used in the experimental setup. The tests were repeated
in various ambient conditions to get an optimal value. Ceramic coating
has been done with partially stabilized zirconia by the plasma arc
spraying process. Among the quantum of tests conducted, 90% KSB blended
with 10% n-pentane showed appreciable results when
it was compared with the test fuel (neat diesel). The brake thermal
efficiency and brake-specific fuel consumption were found to be better
when compared with neat diesel. At increasing load, unburnt hydrocarbon,
carbon monoxide, and smoke opacity emissions were appreciably reduced.