Exergetic and Energetic Analysis of a Traditional Semi-Industrial Comorian Ylang-Ylang Essential Oil Wood Fire Distiller

Abstract

In this article a study of the energy performance of a distillation system of ylang-ylang essential oil on a wood fire was carried out. To do this an analysis using the first and the second low of thermodynamics was made for each component of the distillation system. The analysis showed that the energy efficiency depends on the fration of oil to be distilled and that the whole system is very deficient. The exergetic and energetic analysis shows that it is in the combustion chamber that has a large amount of destroyed exergy and a strong energetic loss. The velocity of the air entering at the combustion chamber greatly influences the efficiency of the chamber. Indeed it has been found that the destruction of the exergy increases with the velocity of the air incoming air.

Energy and Exergy Analysis of an Organic Rankine Cycle used for Ylang-Ylang Essential Oil Distillery Waste Heat Recovery for Power Production in Anjouan Island

“…Thus, an exergy analysis enables to assess the potentiality of the cycle to convert the exhaust gas waste heat to an useful energy. An exergy balance of the exhaust gas gives the exergy destroyed as given by equation ( 13) [1]:…”

“…It is even one of the most affected. In a previous study on the energy and exergy balance of the essential oil of ylang-ylang traditional distillation in the island of Anjouan in the Comoros, Malik et al [1] provided a global overview of the entire energy chain from the combustion chamber to the final stage of obtaining the essential oil. The most energy used in the distillation process is biomass, particularly firewood.…”

“…For cycles with recuperators, the recuperator is used to recover the thermal energy remaining in the working fluid after being expanded in the turbine. More exactly, the present study aims to contribute to the search for passive solutions to the energy efficiency problems raised in [1] on the one hand and the environmental issues raised in [2] on the other hand by recovering the waste heat due to the traditional distillation process of the essential oil of ylang-ylang for power production using ORC. The recovery takes place at the level of the hot water leaving the distillation condenser and at the level of the fumes.…”