Back
 EPE  Vol.12 No.11 , November 2020
Entrepreneurship and the Need for Sustainable New Technologies in Power Generation
Abstract: The increase of micro and nano devices has led to the miniaturization and multi-functionalization of micro-mechanical, communication, imaging, sensing, chemical analytical and biomedical devices. The devices so mentioned above need power sources that are portable, have short charging time, longevity, high energy density and are environmentally friendly. Chemical batteries hitherto used to be the major power source for these devices but have a drawback of having low energy density. The energy density of the most improved lithium-ion battery was in the region of 0.2 kWh/kg. Micro-combustor is one of the most important components of the micro thermophotovoltaic (MTPV) conversion device. This work used numerical simulation to investigate the effect of Micro pin fin arrays on combustion. Using a micro combustor with micro pin-fin arrays inserted, it was observed the fins widened the region of combustion and extended the blow-off limit in the combustor. The fins exerted great influence on combustion as flow rate increased and thus improved the temperature distribution of the wall. The combustor with fins possessed higher heat flux in comparison with combustor without fins. There was combustion stability at inlet velocity of 4 m/s making the micro pin-fin array configuration ideal for MTPV application. The results obtained will be useful in designing a MTPV.
Cite this paper: Bani, S. , Abbey, S. , Quaynor, N. and Essel, E. (2020) Entrepreneurship and the Need for Sustainable New Technologies in Power Generation. Energy and Power Engineering, 12, 641-652. doi: 10.4236/epe.2020.1211038.
References

[1]   [1] Maruta, K. (2011) Micro and Mesoscale Combustion. Proceedings of the Combustion Institute, 33, 125-150.
https://doi.org/10.1016/j.proci.2010.09.005

[2]   Chou, S., Yang, W., Chua, K., Li, J. and Zhang, K. (2011) Development of Micro Power Generators—A Review. Applied Energy, 88, 1-16.
https://doi.org/10.1016/j.apenergy.2010.07.010

[3]   Alliche, M., Haldenwang, P. and Chikh, S. (2010) Extinction Conditions of a Premixed Flame in a Channel. Combustion and Flame, 157, 1060-1070.
https://doi.org/10.1016/j.combustflame.2010.02.006

[4]   Maruta, K., Takeda, K., Ahn, J., Borer, K., Sitzki, L., Ronney, P.D., et al. (2002) Extinction Limits of Catalytic Combustion in Microchannels. Proceedings of the Combustion Institute, 29, 957-963.
https://doi.org/10.1016/S1540-7489(02)80121-3

[5]   Yang, W., Fan, A., Wan, J. and Liu, W. (2015) Effect of External Surface Emissivity on Flame-Splitting Limit in a Micro Cavity-Combustor. Applied Thermal Engineering, 83, 8-15.
https://doi.org/10.1016/j.applthermaleng.2015.03.009

[6]   Federici, J. and Vlachos, D. (2008) A Computational Fluid Dynamics Study of Propane/Air Microflame Stability in a Heat Recirculation Reactor. Combustion and Flame, 153, 258-269.
https://doi.org/10.1016/j.combustflame.2007.09.009

[7]   Jiaqiang, E., Peng, Q., Zhao, X., Zuo, W., Zhang, Z. and Pham, M. (2017) Numerical Investigation on the Combustion Characteristics of Non-Premixed Hydrogen-Air in a Novel Micro-Combustor. Applied Thermal Engineering, 110, 665-677.
https://doi.org/10.1016/j.applthermaleng.2016.08.210

[8]   Mujeebu, M.A., Abdullah, M.Z., Bakar, M.A., Mohamad, A. and Abdullah, M. (2009) Applications of Porous Media Combustion Technology–A Review. Applied Energy, 86, 1365-1375.
https://doi.org/10.1016/j.apenergy.2009.01.017

[9]   Sanmiguel, J.E., Mehta, S.R. and Moore, R.G. (2003) An Experimental Study of Controlled Gas-Phase Combustion in Porous Media for Enhanced Recovery of Oil and Gas. Journal of Energy Resources Technology, 125, 64-71.
https://doi.org/10.1115/1.1510522

[10]   Bani, S., Pan, J., Tang, A., Lu, Q. and Zhang, Y. (2017) Micro Combustion in a Porous Media for Thermophotovoltaic Power Generation. Applied Thermal Engineering.
https://doi.org/10.1016/j.applthermaleng.2017.10.024

[11]   Pan, J., Huang, J., Li, D., Yang, W., Tang, W. and Xue, H. (2007) Effects of Major Parameters on Micro-Combustion for Thermophotovoltaic Energy Conversion. Applied Thermal Engineering, 27, 1089-1095.
https://doi.org/10.1016/j.applthermaleng.2006.07.038

[12]   Pan, J., Wu, D., Liu, Y., Zhang, H., Tang, A. and Xue, H. (2015) Hydrogen/Oxygen Premixed Combustion Characteristics in Micro Porous Media Combustor. Applied Energy, 160, 802-807.
https://doi.org/10.1016/j.apenergy.2014.12.049

[13]   Waitz, I.A., Gauba, G. and Tzeng, Y.-S. (1996) Combustors for Micro-Gas Turbine Engines.

[14]   Yoshikawa, K. (1999) Gasification and Power Generation from Solid Fuels Using High Temperature Air. Proceeding of High Temperature Air Combustion Symposium, 68.

[15]   Gupta, A., Bolz, S. and Hasegawa, T. (1999) Effect of Air Preheat Temperature and Oxygen Concentration on Flame Structure and Emission. Journal of Energy Resources Technology, 121, 209-216.
https://doi.org/10.1115/1.2795984

[16]   Zamashchikov, V. (1997) Experimental Investigation of Gas Combustion Regimes in Narrow Tubes. Combustion and Flame, 108, 357-359.
https://doi.org/10.1016/S0010-2180(96)00169-1

[17]   Zamashchikov, V. (2001) An Investigation of Gas Combustion in a Narrow Tube. Combustion Science and Technology, 166, 1-14.
https://doi.org/10.1080/00102200108907817

[18]   Ochoa, F., Eastwood, C., Ronney, P. and Dunn, B. (2003) Thermal Transpiration Based Microscale Propulsion and Power Generation Devices. Seventh International Workshop on Microgravity Combustion and Chemically Reacting Systems, 373.

[19]   Maruta, K., Kataoka, T., Kim, N.I., Minaev, S. and Fursenko, R. (2005) Characteristics of Combustion in a Narrow Channel with a Temperature Gradient. Proceedings of the Combustion Institute, 30, 2429-2436.
https://doi.org/10.1080/00102200108907817

[20]   Peles, Y., Koşar, A., Mishra, C., Kuo, C.J. and Schneider, B. (2005) Forced Convective Heat Transfer across a Pin Fin Micro Heat Sink. International Journal of Heat & Mass Transfer, 48, 3615-3627.
https://doi.org/10.1016/j.ijheatmasstransfer.2005.03.017

[21]   Kosar, A., Mishra, C. and Peles, Y. (2005) Laminar Flow across a Bank of Low Aspect Ratio Micro Pin Fins. Journal of Fluids Engineering, 127, 419-430.
https://doi.org/10.1115/1.1900139

[22]   Go, J.S., Kim, S.J., Lim, G., Yun, H., Lee, J., Song, I., et al. (2001) Heat Transfer Enhancement Using Flow-Induced Vibration of a Microfin Array. Sensors & Actuators A Physical, 90, 232-239.
https://doi.org/10.1016/S0924-4247(01)00522-2

[23]   Giovangigli, V. and Smooke, M.D. (1987) Extinction of Strained Premixed Laminar Flames with Complex Chemistry. Combustion Science & Technology, 53, 23-49.
https://doi.org/10.1080/00102208708947017

[24]   Pan, J., Zhu, J., Liu, Q., Zhu, Y., Tang, A. and Lu, Q. (2017) Effect of Micro-Pin-Fin Arrays on the Heat Transfer and Combustion Characteristics in the Micro-Combustor. International Journal of Hydrogen Energy, 42.
https://doi.org/10.1016/j.ijhydene.2017.06.164

[25]   Nair, S. and Lieuwen, T.C. (2007) Near-Blowoff Dynamics of a Bluff-Body Stabilized Flame. Journal of Propulsion & Power, 23, 421-427.
https://doi.org/10.2514/1.24650

[26]   Bakrozis, A.G., Papailiou, D.D. and Koutmos, P. (1999) A Study of the Turbulent Structure of a Two-Dimensional Diffusion Flame Formed Behind a Slender Bluff-Body. Combustion & Flame, 119, 291-306.
https://doi.org/10.1016/S0010-2180(99)00061-9

 
 
Top