Browse > Article
http://dx.doi.org/10.5139/JKSAS.2015.43.2.149

Optimization of Thermo-optical Property for Electrostatic Actuating MEMS-based Variable Emissivity Radiator  

Ha, Heon-Woo (Department of Aerospace Engineering, Chosun University)
Kang, Soo-Jin (Department of Aerospace Engineering, Chosun University)
Han, Sung-Hyeon (Department of Aerospace Engineering, Chosun University)
Kim, Tae-Gyu (Department of Aerospace Engineering, Chosun University)
Oh, Hyun-Ung (Department of Aerospace Engineering, Chosun University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.43, no.2, 2015 , pp. 149-155 More about this Journal
Abstract
MEMS-based louver and shutter type conventional variable emissivity radiators change their emissivity properties in accordance with a temperature condition to achieve efficient thermal control performance. However, there are some drawbacks such as a structural safety of the mechanical moving parts under sever launch environment and constant power consumption to maintain the intended emissivity. In this study, to overcome above drawbacks, we proposed a MEMS-based variable emissivity radiator, which can change the emissivity property according to the polarity change of electrodes by using electric charge of the bead. The effectiveness of the optimized radiator design has been demonstrated through the comparison of efficiency with the fixed emissivity radiator.
Keywords
Micro Electro Mechanical System; Variable Emissivity; Thermal Analysis; Optical Property;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 S. M. Shin, H. U. Oh, "Thermal Design and Analysis for Space Imaging Sensor on LEO", Journal of the Korean Society for Aeronautical & Space Sciences, 2011, Vol. 39, No. 5, pp. 474-480   DOI   ScienceOn
2 K. Shimazaki, S. Tachikawa, A. Ohnishi, Y. Nagasaka, "Temperature Dependence of Total Hemispherical Emittance in Perovskitetype Manganese Oxides, $La_{1-x}Sr_{x}MnO_{3}$", High Temperature-High Pressures, 2001, Vol. 33, pp. 525-531   DOI   ScienceOn
3 K. Shimazaki, A. Ohnishi, Y. Nagasaka, "Development of Spectral Selective Multilayer Film for a Variable Emittance Device and Its Radiation Properties Measurements", International Journal of Thermophysics, 2003, Vol. 24, pp. 757-769   DOI
4 S. W. Han, B. S. Choi, T. H Song, S. J Kim, B. J Lee, "Experimental Investigation on Variable Emittance Material Based on $(La, Sr)MnO_3$", Journal of The Korean Society of Mechanical Engineers, Vol. 37, No. 6, 2013, pp. 583-590   DOI   ScienceOn
5 D. Farra, W. Schneider, R. Osiander, J.L. Champion, M.A.G. Darrin, D. Douglas, T.D. Swanson, "Controlling Variable Emittance (MEMS) Coating for Space Applications", Inter Society Conference on Thermal Phenomena, 2002, Vol. 8, pp. 1020-1024
6 R. Osiander, S.L. Firebaugh, J.L. Champion, D. Farra, M.A.G. Darrin, "Microelectromechanical Device for Satellite Thermal Control", IEEE Sensors Journal, 2004, Vol. 4, No. 4, pp. 525-530   DOI
7 C. U. Lee, H. W. Ha, H. U. Oh, T. K. Kim, "Experimental Validation of MEMS-based Variable Emissivity Radiator for Space Applications", Journal of The Korean MEMS Conference, 2014
8 D. Panczak, G. Ring, J. Welch, D. Johnson, P. Bell, "Sinda/Fluint Thermal Desktop User's Manual", C&R Technology, 2008
9 V. V. Vlassov, F. L. Sousa, A. P. C. Cuco, A. J. S. Neto, "New Concept of Space Radiator with Variable Emittance", Journal of the Brazilian Society of Mechanical Sciences and Engineering, Vol. 32, No. 4, 2010, pp. 400-408   DOI
10 M. Darrin, R. Osiander, J. Lehtonen, D. Farrar, "Novel Micro ElectroMechanical System (MEMS) Packaging for the Skin of the Satellite", 2004 IEEE Aerospace Conference, 2004