Browse > Article
http://dx.doi.org/10.15231/jksc.2014.19.4.014

Study on the Characteristics of an Annular Combustor for a 500 W Class Micro Gas Turbine Generator  

Do, Kyu Hyung (Environmental and Energy Systems Research Division, Korea Institute of Machinery & Materials)
Kim, Taehoon (Environmental and Energy Systems Research Division, Korea Institute of Machinery & Materials)
Han, Yong-Shik (Environmental and Energy Systems Research Division, Korea Institute of Machinery & Materials)
Kim, Myung-Bae (Environmental and Energy Systems Research Division, Korea Institute of Machinery & Materials)
Choi, Byung-Il (Environmental and Energy Systems Research Division, Korea Institute of Machinery & Materials)
Publication Information
Journal of the Korean Society of Combustion / v.19, no.4, 2014 , pp. 14-20 More about this Journal
Abstract
In the present study, an annular combustor for a 500 W class micro gas turbine generator was designed and its characteristics were investigated by using both numerical and experimental methods. For this purpose, geometrical configurations of the annular combustor were determined in the aspect of the aerodynamic and chemical consideration. Also, fluid flow and pressure drop characteristics in the combustor were numerically studied by using commercial tool, FLUENT. Based on the numerical results, the diameter and the angle of air admission holes in the primary zone were chosen to be 2.5 mm and $30^{\circ}$, respectively. Finally, an integrated test unit, which consisted of a compressor, combustor, turbine, and motor/generator, was developed in order to measure the combustor efficiency. As the temperature difference between the combustor inlet and the turbine inlet or the air mass flow rate increased, the combustor efficiency increased and it was over 90% when the air mass flow rate was larger than 7.30 g/s. It was shown that the annular combustor developed in this study met the design requirement for a 500 W class micro gas turbine generator.
Keywords
Micro gas turbine; Annular combustor; Combustor design; Efficiency;
Citations & Related Records
연도 인용수 순위
  • Reference
1 R. J. Nowak, DARPA's Advanced Energy Technologies, DARPATECH 2000.
2 California Energy Commission, 200kWe Solid Fuel Cell/Microturbine Generator Hybrid proof of Concept Demonstration Report, March 2001.
3 O. Dessornes, S. Landais, R. Valle, A. Fourmaux, S. Burguburu, C. Zwyssig, Z. Kozanecki, Advances in the Development of a Microturbine Engine, ASME Journal of Engineering for Gas Turbines and Power, 136 (2014) 071201.   DOI
4 Leading R&D to Practice Ultra Micro Gas Turbines, NEDO International collaboration, Report 2002.
5 E. Matsuo, H. Yoshiki, T. Nagasima, C. Kato, Toward the development of the finger top gas turbines, IGTC '03 Tokyo.
6 J. Seo, J. Y. Park, B. S. Choi, Start-up and Selfsustain Test of 500W Ultra-Micro Gas Turbine Generator, Journal of Physics: Conference Series. 476(1) (2013) 012060.   DOI
7 H. Saravanamuttoo, G. Rogers, H. Cohen, P. Straznicky, Gas Turbine Theory 6th ed., Pearson Education Limited, UK, 2009.
8 A. H. Lefebvre, Gas Turbine Combustion, 2nd ed., Taylor&Francis, USA, 1999.
9 S. L. Bragg, Application of Reaction Rate Theory to Combustion Chamber Analysis, ARC 16170, Aeronautical Research Council, England, September 1953.
10 B. I. Choi, Y. S. Han, M. B. Kim, C. H. Hwang, C. B. Oh, Experimental and numerical studies of mixing and flame stability in a micro-cyclone combustor, Chemical Engineering Science 64(24) (2009) pp. 5276-5286.   DOI