Turbin Hibrid Bi-Directional Sebagai Pemanen Energi pada Thermoacoustic Engine


  • Eko Wismo Winarto Gadjah Mada University
  • Sugiyanto Sugiyanto Gadjah Mada University
  • Soeadgihardo Siswantoro Gadjah Mada University
  • Isworo Djati Gadjah Mada University




Bi-Directional Turbine, Hybrid Turbine, Wave Energy, Thermoacoustic Engine


Bi-directional turbines that are commonly applied to convert wave energy into motion energy are the types of Impulse turbines and Wells turbines. Both types of turbines each have advantages and disadvantages. In this research, hybrid turbine type is designed and made to bridge the weaknesses in impulse turbine and turbine wells. Hybrid turbines are made by placing impulse turbines on the outside while turbine wells placed on the inside. In this research, the variation of hybrid bi-directional turbine design aims to find out the most optimal design of this turbine type. Six variations were carried out including a hub to tip ratio of 0.5 with 4 and 5 Wells blades, a hub to tip ratio of 0.6 with 4 and 5 Wells blades, and a hub to tip ratio of 0.7 with 4 and 5 Wells blades. From the test results on thermoacoustic engine media, based on the hub to tip ratio, the most optimal hub to tip ratio is in the order of 0.7 then 0.6, and 0.5. Whereas based on the number of Wells blade, obtained the number of Wells blade 5 is more optimal than the number of Wells blade 4.


EPOS, “Waste Heat - Heat to electricity techniques,†2019.

ETALIM Inc., “NRCan ecoENERGY Innovation Initiative Stakeholder Report,†2014.

H. BABAEI and K. SIDDIQUI, “Design and optimization of thermoacoustic devices,†Energy Convers. Manag., vol. 49, no. 12, pp. 3585–3598, 2008.

A. J. JAWORSKI and X. MAO, “Development of thermoacoustic devices for power generation and refrigeration,†in Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2013, vol. 227, no. 7, pp. 762–782.

S. KALRA, K. P. DESAI, H. B. NAIK, and M. D. ATREY, “Theoretical study on standing wave thermoacoustic engine,†Phys. Procedia, vol. 67, pp. 456–461, 2015.

S. L. GARRETT, “Thermoacoustic engines and refrigerators,†AIP Conf. Proc., vol. 1440, no. 7, pp. 9–22, 2012.

C. SHEN, H. X. LI, D. W. ZHANG, P. YU, N. PAN, and S. F. WANG, “Study on the heat transfer characteristic of solar powered thermoacoustic prime mover at different tilted angles,†Appl. Therm. Eng., vol. 103, pp. 1126–1134, 2016.

S. BACKHAUS, E. TWARD, and M. PETACH, “Traveling-wave thermoacoustic electric generator,†Appl. Phys. Lett., vol. 85, no. 6, pp. 1085–1087, 2004.

Z. H. WU, M. MAN, E. C. LUO, W. DAI, and Y. ZHOU, “Experimental investigation of a 500 W traveling-wave thermoacoustic electricity generator,†Chinese Sci. Bull., vol. 56, no. 19, pp. 1975–1977, 2011.

K. WANG et al., “An acoustically matched traveling-wave thermoacoustic generator achieving 750 W electric power,†Energy, vol. 103, pp. 313–321, 2016.

M. A. G. TIMMER, K. DE BLOK, and T. H. VAN DER MEER, “Review on the conversion of thermoacoustic power into electricity,†J. Acoust. Soc. Am., vol. 143, no. 2, pp. 841–857, 2018.

E. T. BOESSNECK and T. E. SALEM, “Performance Characterization of Bi-Directional Turbines for Use in Thermoacoustic Generator Applications,†p. V001T09A001, 2016.

S. RAGHUNATHAN, T. SETOGUCHI, and K. KANEKO, “Aerodynamics of monoplane wells turbine - a review,†Int. J. Offshore Polar Eng., vol. 4, no. 1, pp. 68–75, 1994.

P. SETIAWAN and T. YUWONO, “The Effect of Inner Fan Blade Angle to The Ventilation Rate of The Turbine Ventilator,†J. Rekayasa Mesin, vol. 9, no. 3, pp. 227–233, 2018.

T. SETOGUCHI and M. TAKAO, “Current status of self rectifying air turbines for wave energy conversion,†Energy Convers. Manag., vol. 47, no. 15–16, pp. 2382–2396, 2006.

T. BIWA, Y. TASHIRO, H. NOMURA, Y. UEDA, and T. YAZAKI, “Experimental verification of a two-sensor acoustic intensity measurement in lossy ducts,†J. Acoust. Soc. Am., vol. 124, no. 3, pp. 1584–1590, 2008.

ROSSING, T. D., (2007), Springer Handbook of Acoustic. Edited by T. D. Rossing. LLC New York: Springer Science+Business Media.