Numerical Study and Multi Objective Optimization of Coffee Husk Oil and Methyl Alcohol in Mini Channel Pin Fins with Varying Thickness

Document Type : Regular Article

Authors

1 Department of Mechanical Engineering, National Institute of Technology, Karnataka, Surathkal, Mangalore 575025, India

2 Department of Mechanical Engineering, Indian Institute of Technology Tirupati, Andhra Pradesh 517619, India

10.47176/jafm.18.10.3105

Abstract

The purpose of this paper is to study how coffee husk oil and methyl alcohol flow and transfer heat in mini channel pin fins of different thicknesses. TOPSIS method is used to find the best configuration based on different weightages assigned for the Nusselt number and pumping power for multiple objectives. The present research work also determines the most effective configuration of mini-channel with varying pin-fin thickness in order to improve the thermo-hydraulic characteristics in compact mini-channels. Coffee husk oil and methyl alcohol are used as feedstock in a continuous flow mini-channel reactor to produce biodiesel fuel. Numerical simulations are conducted to evaluate the pressure drop, Nusselt number, temperature distribution, and pumping power for varying Reynolds number. Considering the conjugate heat transfer problem, the parameters involved are the enhancement factor, friction factor, and thermo-hydraulic performance parameter. The Reynolds number ranges from 100 to 600 for coffee husk oil and 100 to 660 for methyl alcohol. TOPSIS is applied to each case based on the numerical simulations to determine the optimal results. Upon evaluating the performance score using TOPSIS for all the scenarios, it is evident that the mini-channel with a pin thickness of 2.3 mm outperforms other mini-channel pin fin designs in most cases, for both coffee husk oil and methyl alcohol.

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Abdulla Yusuf, H., Hossain, S. M. Z., Aloraibi, S., Alzaabi, N. J., Alfayhani, M. A., & Almedfaie, H. J. (2022). Fabrication of novel microreactors in-house and their performance analysis via continuous production of biodiesel. Chemical Engineering and Processing - Process Intensification, 172(January). https://doi.org/10.1016/j.cep.2022.108792
Basha, S. M. M., Ahammed, M. E., Perumal, D. A., & Yadav, A. K. (2024). A Computational approach on mitigation of hotspots in a microprocessor by employing CNT nanofluid in bifurcated microchannel. Arabian Journal for Science and Engineering, 49(2), 2199–2215. https://doi.org/10.1007/s13369-023-08168-y
Bordbar, A., Kheirandish, S., Taassob, A., Kamali, R., & Ebrahimi, A. (2020). High-viscosity liquid mixing in a slug-flow micromixer: a numerical study. Journal of Flow Chemistry, 10(2), 449–459. https://doi.org/10.1007/s41981-020-00085-7
Costa Junior, J. M., Naveira-Cotta, C. P., De Moraes, D. B., Inforçatti Neto, P., Maia, I. A., Da Silva, J. V. L., Alves, H., Tiwari, M. K., & De Souza, C. G. (2020). Innovative metallic microfluidic device for intensified biodiesel production. Industrial and Engineering Chemistry Research, 59(1), 389–398. https://doi.org/10.1021/acs.iecr.9b04892
Emma, A. F., Alangar, S., & Yadav, A. K. (2022). Extraction and characterization of coffee husk biodiesel and investigation of its effect on performance, combustion, and emission characteristics in a diesel engine. Energy Conversion and Management: X, 14, 100214. https://doi.org/https://doi.org/10.1016/j.ecmx.2022.100214
González, B., Calvar, N., Gómez, E., & Domínguez, Á. (2007). Density, dynamic viscosity, and derived properties of binary mixtures of methanol or ethanol with water, ethyl acetate, and methyl acetate at T = (293.15, 298.15, and 303.15) K. Journal of Chemical Thermodynamics, 39(12), 1578–1588. https://doi.org/10.1016/j.jct.2007.05.004
Hajjari, M., Tabatabaei, M., Aghbashlo, M., & Ghanavati, H. (2017). A review on the prospects of sustainable biodiesel production: A global scenario with an emphasis on waste-oil biodiesel utilization. Renewable and Sustainable Energy Reviews, 72(November 2016), 445–464. https://doi.org/10.1016/j.rser.2017.01.034
Hanif, M., Harahap, F. A. U., Heru, H., Darni, Y., & Ginting, S. B. (2019). Extraction and characterization of coffee oil from instant-coffee waste. Jurnal Bahan Alam Terbarukan, 8(1), 59–64. https://doi.org/10.15294/jbat.v8i1.18619
Ismail, M., Fartaj, A., & Karimi, M. (2013). Numerical investigation on heat transfer and fluid flow behaviors of viscous fluids in a minichannel heat exchanger. Numerical Heat Transfer; Part A: Applications, 64(1), 1–29. https://doi.org/10.1080/10407782.2013.773803
Jadhav, P. H., G, T., Gnanasekaran, N., & Mobedi, M. (2022). Performance score based multi-objective optimization for thermal design of partially filled high porosity metal foam pipes under forced convection. International Journal of Heat and Mass Transfer, 182. https://doi.org/10.1016/j.ijheatmasstransfer.2021.121911
Madhawan, A., Arora, A., Das, J., Kuila, A., & Sharma, V. (2018). Microreactor technology for biodiesel production: a review. Biomass Conversion and Biorefinery, 8(2), 485–496. https://doi.org/10.1007/s13399-017-0296-0
Maji, A., & Choubey, G. (2020). Improvement of heat transfer through fins: A brief review of recent developments. Heat Transfer, 49(3), 1658–1685. https://doi.org/10.1002/htj.21684
Meher, L. C., Vidya Sagar, D., & Naik, S. N. (2006). Technical aspects of biodiesel production by transesterification - A review. Renewable and Sustainable Energy Reviews, 10(3), 248–268. https://doi.org/10.1016/j.rser.2004.09.002
Nedumaran, M. S., Trilok, G., Gnanasekaran, N., & Hooman, K. (2024). Multi-objective optimization of hybrid heat sinks with phase change materials. Heat Transfer Engineering, 45(11), 1028–1049. https://doi.org/10.1080/01457632.2023.2234770
Ning, M., Mengjie, S., & Shiming, D. (2016). Application of TOPSIS method in evaluating the effects of supply vane angle of a task / ambient air conditioning system on energy utilization and thermal comfort. 180, 536–545. https://doi.org/10.1016/j.apenergy.2016.08.011
Pandit, J., Thompson, M., Ekkad, S. V., & Huxtable, S. T. (2014). Effect of pin fin to channel height ratio and pin fin geometry on heat transfer performance for flow in rectangular channels. International Journal of Heat and Mass Transfer, 77, 359–368. https://doi.org/10.1016/j.ijheatmasstransfer.2014.05.030
Pina, A., Ferrão, P., Fournier, J., Lacarrière, B., & Corre, O. Le. (2019). Waste coffee oil : A promising source for Heating biodiesel production Waste coffee oil : A promising source for biodiesel production MN Uddin the Assessing of using b the heat demand-outdoor temperature function for a long-ter. Energy Procedia, 160, 677–682. http://dx.doi.org/10.1016/j.egypro.2019.02.221
Salman, S. D. (2019). Comparative study on heat transfer enhancement of nanofluids flow in ribs tube using CFD simulation. Heat Transfer - Asian Research, 48(1), 148–163. https://doi.org/10.1002/htj.21376
Santacesaria, E., Di Serio, M., Tesser, R., Turco, R., Tortorelli, M., & Russo, V. (2012). Biodiesel process intensification in a very simple microchannel device. Chemical Engineering and Processing: Process Intensification, 52, 47–54. https://doi.org/10.1016/j.cep.2011.12.001
Santana, H. S., Júnior, J. L. S., & Taranto, O. P. (2015). Numerical simulations of biodiesel synthesis in microchannels with circular obstructions. Chemical Engineering and Processing: Process Intensification, 98, 137–146. https://doi.org/10.1016/j.cep.2015.10.011
Santana, H. S., Tortola, D. S., Reis, É. M., Silva, J. L., & Taranto, O. P. (2016). Transesterification reaction of sunflower oil and ethanol for biodiesel synthesis in microchannel reactor: Experimental and simulation studies. Chemical Engineering Journal, 302, 752–762. https://doi.org/10.1016/j.cej.2016.05.122
Sarafraz, M. M., & Christo, F. C. (2021). Thermal and flow characteristics of liquid flow in a 3D-printed micro-reactor: A numerical and experimental study. Applied Thermal Engineering, 199(June). https://doi.org/10.1016/j.applthermaleng.2021.117531
Sime, W., Kasirajan, R., Latebo, S., Mohammed, A., & Seraw, E. (2017). Coffee husk highly available in ethiopia as an alternative waste source for biofuel production. International Journal of Scientific & Engineering Research, 8(7), 1874–1880. http://www.ijser.org
Tiwari, A., Rajesh, V. M., & Yadav, S. (2018). Energy for Sustainable Development Biodiesel production in micro-reactors : A review. Energy for Sustainable Development, 43, 143–161. https://doi.org/10.1016/j.esd.2018.01.002
Verma, R. K., & Ghosh, S. (2021). Curvature induced intensification of biodiesel synthesis in miniature geometry. Chemical Engineering and Processing - Process Intensification, 163(January). https://doi.org/10.1016/j.cep.2021.108363
Xia, G., Chen, Z., Cheng, L., Ma, D., Zhai, Y., & Yang, Y. (2017). Micro-PIV visualization and numerical simulation of flow and heat transfer in three micro pin-fin heat sinks. International Journal of Thermal Sciences, 119, 9–23. https://doi.org/10.1016/j.ijthermalsci.2017.05.015
Zhao, J., Huang, S., Gong, L., & Huang, Z. (2016). Numerical study and optimizing on micro square pin-fin heat sink for electronic cooling. Applied Thermal Engineering, 93, 1347–1359. https://doi.org/10.1016/j.applthermaleng.2015.08.105