| dc.description.abstract | The demand and supply of energy are increasing with the growing world
population, leading to accelerated environmental degradation due to the
predominant use of fossil fuels, causing substantial carbon dioxide emissions
worldwide. Biomass pyrolysis emerges as an alternative solution for renewable
energy. In its application, biomass pyrolysis, such as palm oil empty fruit bunches,
is heated to 500°C to produce bioc har, bio oil, and syngas. The syngas temperature
generated during the process can be utilized in the organic Rankine cycle (ORC) to
generate electricity. The 280°C heat from syngas will be transferred to evaporate
the ORC working fluid in the evaporator un it. This study employs simulation using
Aspen Plus software to design the evaporator with three ORC working fluid
variations: R245fa, R123, and R141b. The evaporator will be designed using
R245fa, and its impact on power and efficiency will be assessed. Th e research
findings indicate that the evaporator requires a surface area of 9.70 m2, with the
highest to lowest power produced by R245fa at 360.32 Watts, R123 at 269.13 Watts,
and R141b at 265.09 Watts. The highest to lowest effectiveness values for the
ev aporator are achieved using R245fa at 0.94, R141b at 0.83, and R123 at 0.80. | en_US |
