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All Journal Jurnal Keteknikan Pertanian Communications in Science and Technology
Maharani Dewi Solikhah, Maharani Dewi
Badan Pengkajian dan Penerapan Teknologi
Agriculture, Biological Sciences & Forestry Engineering

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Optimasi Aliran Turbulen pada Tangki Evaporator dengan Computational Fluid Dynamics Heryana, Yayan Heryana; nitamiwati, ni putu dian; Solikhah, Maharani Dewi
Jurnal Keteknikan Pertanian Vol. 12 No. 1 (2024): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.012.1.1-20

Abstract

The increase in water content during biodiesel storage poses a significant challenge that necessitates finding a solution. One proposed approach is the implementation of a thermal vacuum dewatering system for biodiesel, which effectively reduces the water content to meet the required specifications. In this study, the biodiesel evaporator tank is the main component of the dewatering system. While the current water content reduction meets the standard, continuous optimization is essential to achieve a water content in biodiesel below 200 ppm. This research aims to optimize the turbulent flow within the biodiesel evaporator tank by employing a pipe sparger with various hole configurations through computational fluid dynamics (CFD) simulations. Additionally, these simulations aim to enhance the understanding of biodiesel flow behavior as it passes through the orifice plate and pipe sparger, ultimately identifying the best operational conditions. The research encompasses CFD simulations of the biodiesel evaporator tank using both orifice plate and pipe sparger setups. Four models were investigated: biodiesel evaporator tanks equipped with an orifice plate, pipe sparger A, pipe sparger B, and pipe sparger C. The simulation results indicate that the biodiesel evaporator tank with pipe sparger C offers the most optimal turbulent flow, as evidenced by the velocity distribution observed at Re=5000, Re=10000, and Re=50000. Consequently, installing pipe sparger C in the biodiesel evaporator tank holds promise for achieving higher water content reduction compared to the orifice plate, pipe sparger A, and pipe sparger B configurations.
Investigating potential application of bio-based polymeric surfactant using methyl ester from palm oil for chemical enhanced oil recovery (CEOR) Wibowo, Agam Duma Kalista; Megawati, Rizki; Setyaningrum, Vilia Kartika; Putri, Erika Wahyu; Joelianingsih; Handayani, Aniek Sri; Solikhah, Maharani Dewi; Chafidz, Achmad
Communications in Science and Technology Vol 8 No 2 (2023)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.8.2.2023.1318

Abstract

Fatty Acid Methyl Ester (FAME) or palm oil methyl ester is one of the palm oil derivatives in which one of the anionic surfactants that can be generated from it is methyl ester sulfonate (MES). This bio-based surfactant can reduce the interfacial tension (IFT) between oil and water. To produce a bio-based polymeric surfactant, sulfonate groups from MES were grafted onto polymer chains. Palm oil methyl ester was reacted with sulfuric acid (H2SO4) to synthesize MES. Afterwards, MES was reacted with the Ethyl Acrylate (EA) monomer to synthesize polymeric surfactant. Investigating this route to produce a bio-based polymeric surfactant has become the novelty of this study. This study showed that the best polymerization result was obtained at a mole ratio of MES to EA (1:0.5) with the highest viscosity of 14.47 mm2/s. The critical micelle concentration (CMC) analysis showed 0.5% at a mole ratio of MES to EA (1:0.5) which corresponded to the lowest interfacial tension (IFT) of 1.95 x 10-3 mN/m. Meanwhile, the contact angle gradually decreased from 58.44 to 11.79°. The polymeric surfactant, furthermore, was analyzed using FTIR and H-NMR and successfully confirmed the formation of bio-based polymeric surfactant. The core flooding experiment found that approximately 16.57% of oil could be recovered. The results of the study revealed a good potential of the polymeric surfactant to be applied in chemical enhanced oil recovery (CEOR).
Co-Authors Agam Duma Kalista Wibowo Aniek Sri Handayani Chafidz, Achmad Heryana, Yayan Heryana Joelianingsih Megawati, Rizki nitamiwati, ni putu dian Putri, Erika Wahyu Setyaningrum, Vilia Kartika