Exergetic Analysis of a Microalgae Gasifier with an Integrated Solar Dryer

Ephraim Taktak Bello, Abba B. Muhammad, Fasiu A. Oluwole

Abstract


Renewable energy sources are rapidly substituting fossil fuels. In this paper, energy and e xergy analyses of microalgae biomass to synthetic gas production is presented. First and second laws of thermodynamics analyses were conducted on three energy systems: solar dryer; combustor; and a gasifier. Exergy analysis was performed on three heat media to investigate the energy conversion performance of each energy system within range of 10-50% humidity. The tests were carried out on three conditions: product gas having high concentrations of carbon monoxide and hydrogen gases; gasification begins at 1000 0C; and complete combustion with no ash formation. According to the results obtained, moisture content in microalgae biomass has negligible effect on the exit temperature of synthetic gas from gasification chamber. The exergy loss analysis in solar dryer show lower values compared to a combustor and gasifier. The gasifier chamber is least energy efficient system with exergy loss value of 5.4KJ/Kg at 50% humidity compared to 3.4KJ/Kg and 3.1KJ/Kg at 50% humidity levels for solar dryer and combustor respectively.

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Ahmed F., Khaliq A., & Idrees M. (2018). Energetic and Exergetic Analysis of biomass Derived Syngas for Triple Cycle Power Generation. Dsitributed Generation & Alternative Eergy Journal. Vol 32 (4) Pp 26-53.

Ali N., Ting Z., Khan Y., Athar M., Ahmad V., & Idress M., (2015). Making biofuels from microalgae – A review of technologies. Journal of food science and technology. Vol 1(2) pp 007-014.

Amin, A. Z. (2014). A Renewable Energy Roadmap 2030. (IRENA) International Renewable Energy Agency Report.

Ana I. Barros, Ana L.Goncalves, & Mauel Simoes, (2015). Harvesting Techniques Applied to Microalgae: A review. Renewable and Sustainable Energy Reviews, 41, 1489–1500.

Bello, E. T. (2014). Thermodynamic Analysis of Biomass Gasification. MSc thesis. University of Glasgow UK.

Christopher Higman, & Maarten van der Burg. (2003). Gasification, Elsevier Science and Technology Books.

Dalwadi, N., Patel, A., & Upadhyay, D. (2016). Study And Analysis of Biomass Gasifier’s Model. 2nd IAET International Conference. International Journal of Jaipur National University.

Damiani, L., & Revetria, R. (2014). Numerical Exergetic Analysis of Different Biomass and Fossil Fuels Gasification. International Journal of Renewable Energy and Biofuels.

Datta, A., Hossain, A., & Roy, S. (2019). An Overview on Biofuels and Their Advantages and Disadvantages. Asian Journal of Chemistry, 31(8), 1851–1858.

Enamala, M. K., Enamala, S., Chavali, M., Donepudi, J., Yadavalli, R., Kolapalli, B., Aradhyula T,. Velpuri, J,. & Kuppam, C. (2018). Production of biofuels from microalgae - A review on cultivation, harvesting, lipid extraction, and numerous applications of microalgae. In Renewable and Sustainable Energy Reviews Vol. (94), Pp 49-68.

Jacobson, M. Z. (2019). Why Not Biomass For Electricity or Heat as Part of a 100 % Wind-Water-Solar ( WWS ) and Storage Solution to Global Warming , Air Pollution , and Energy Security. Ebook- Cambridge University Press. https://web.stanford.edu/group/efmh/jacobson/WWSBook/WWSBook.html

Jacobson, M. Z. (2020). Why Not Liquid Biofuels For Transportation as Part of a 100 % Wind-Water-Solar ( WWS ) and Storage Solution to Global Warming , Air Pollution , and Energy Security. Ebook- Cambridge University Press. https://web.stanford.edu/group/efmh/jacobson/WWSBook/WWSBook.html

Parvez, M. (2014). Energy and exergy analysis of combined power cycle integrated with biomass gasifier for power production. Global Energy Network Institute. Vol. 6 (4), Pp 1-8.

Puig-arnavat, M., Bruno, J. C., & Coronas, A. (2010). Review and analysis of biomass gasification models. Renewable and Sustainable Energy Reviews, 14(9), 2841–2851.

Revision, W. P. (2011). The Energy and Fuel Data Sheet. University of Birmingham UK.

Saidur, R., Boroumandjazi, G., Mekhilef, S., & Mohammed, H. A. (2012). A review on exergy analysis of biomass based fuels. Renewable and Sustainable Energy Reviews, 16, 1217–1222.

Sandeep, K., & Dasappa, S. (2014). First and second law thermodynamic analysis of air and oxy-steam biomass gasification. International Journal of Hydrogen Energy, 39 (34), 19474–19484.

Sikarwar, V., & Zhao. M. (2017). Biomass Gasification. In Encyclopedia of Sustainable Technologies. Pp 1-13

Tang, Y., Dong, J., Chi, Y., Zhou, Z., & Ni, M., (2019). Energy and Exergy Analyses of Fluidized-Bed Municipal Solid Waste Air Gasification. American Chemical Society, 30 (9), Pp 7629-7637.

Verma, M., Godbout, S., Brar, S. K., Solomatnikova, O., Lemay, S. P., & Larouche, J. P. (2011). Biofuels Production from Biomass by Thermochemical Conversion Technologies. International Journal of Chemical Engineering.

Wu, C. Z., Huang, H., Zheng, S. P., & Yin, X. L. (2002). An economic analysis of biomass gasification and power generation in China. Bioresource Technology, 83, 65–70.


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