Banca de DEFESA: JORDANA MARIA DE MENDONÇA ABDALLA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JORDANA MARIA DE MENDONÇA ABDALLA
DATE: 27/04/2026
TIME: 09:00
LOCAL: Sala 3.08 DCTEF e online (https://meet.google.com/tig-xcwt-deo)
TITLE:

MEASUREMENT OF THE PHYSICOCHEMICAL PARAMETERS OF AN ADVANCED BIOFUEL AND ITS SPECIFIC EMISSIONS, ADAPTED TO NEW EMISSION INDICES.

KEY WORDS:

Farnesane; advanced biofuels; physicochemical properties; exhaust pollutant
emissions; emission indices; diesel engines.

PAGES: 84
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUMMARY:

The objective of this work is to support the use of alternative fuels in complying with
pollutant emission standards. To this end, the physicochemical properties of the advanced
biofuel Farnesane (F100) were evaluated, comparing it to S50 diesel (D100), both pure and in
a mixture containing 20% Farnesane in diesel (F20D80), with the purpose of understanding its
structure and behavior, as well as analyzing its pollutant emissions in a diesel cycle engine.
Additionally, to achieve this objective, two new emission indices were proposed, called the
emission index [g/kgfuel] and the combustion emission index [g/kgCO2], as complementary to
the index regulated in g/kWh by Euro V, Euro VI, and Euro 7. This research presents a
procedure to determine these new indices in accordance with the methodology of the latest
revision of the UN Regulation, establishing limits equivalent to those defined by the standards.
These limits are deduced through two independent approaches: one experimental and the other
based on an algebraic equation. Thus, a simple algebraic expression to translate exhaust
pollutant emission limits was validated using advanced biofuel and its mixture with diesel. The
results show that F100 presents physicochemical properties similar to those of D100, with close
values of lower calorific value, density, and cetane number, in addition to the absence of
aromatic compounds. The distillation and activation energy curves indicate behavior consistent
with paraffinic fuels. The experimental and theoretical conversion of regulatory limits
demonstrates equivalence between the traditional indices and the new proposed indices,
validated by the scalar product. It is concluded that Farnesane has technical potential for partial
or total replacement of diesel in current engines, and that the new indices developed constitute
a useful tool for experimental analyses and interpretation of emissions in experimental studies

BANKING MEMBERS:
Presidente - 1755509 - FELIPE SOTO PAU
Interno - 2152276 - GUSTAVO RODRIGUES DE SOUZA
Externa à Instituição - IVONETE AVILA