THERMAL SCIENCE

International Scientific Journal

RADIANT ABSORPTION CHARACTERISTICS OF CORRUGATED CURVED TUBES

ABSTRACT
The utilization of modern paraboloidal concentrators for conversion of solar radiation into heat energy requires the development and implementation of compact and efficient heat absorbers. Accurate estimation of geometry influence on absorption characteristics of receiver tubes is an important step in this process. This paper deals with absorption characteristics of heat absorber made of spirally coiled tubes with transverse circular corrugations. Detailed 3-D surface-to-surface Hemicube method was applied to compare radiation performances of corrugated and smooth curved tubes. The numerical results were obtained by varying the tube curvature ratio and incident radiant heat flux intensity. The details of absorption efficiency of corrugated tubes and the effect of curvature on absorption properties for both corrugated and smooth tubes were presented. The results may have significance to further analysis of highly efficient heat absorbers exposed to concentrated radiant heating. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. 42006]
KEYWORDS
PAPER SUBMITTED: 2016-04-20
PAPER REVISED: 2016-10-28
PAPER ACCEPTED: 2016-10-31
PUBLISHED ONLINE: 2016-11-06
DOI REFERENCE: https://doi.org/10.2298/TSCI160420263D
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE Issue 6, PAGES [2897 - 2906]
REFERENCES
  1. Ali, A., Hanaoka, Y., Experimental Study on Laminar Flow Forced-convection in a Channel with Upper V-corrugated Plate Heated by Radiation, International Journal of Heat and Mass Transfer, 45 (2002), pp. 2107-2117
  2. Sparrow, E., Lin, S., Absorption of Thermal Radiation in a V-groove Cavity, International Journal of Heat and Mass Transfer, 5 (1962), pp. 1111-1115
  3. Đorđević, M., Stefanović, V., Mančić, M., Pressure Drop and Stability of Flow in Archimedean Spiral Tube With Transverse Corrugations, Thermal Science, 20 (2016), 2, pp. 579-591
  4. Shuai, Y., Xia, X.L., He-Ping Tan, H.P., Radiation Performance of Dish Solar Concentrator / Cavity Receiver Systems, Solar Energy, 82 (2008), pp. 13-21
  5. Cheng, Z.D., He, Y.L., Cui, F.Q., Xu, R.J., Tao, Y.B., Numerical Simulation of a Parabolic Trough Solar Collector with Nonuniform Solar Flux Conditions By Coupling FVM And MCRT Method, Solar Energy, 86 (2012), pp.1770-1784
  6. Incropera, F., DeWitt, D., Fundamentals of Heat and Mass Transfer, John Wiley and Sons, New York, 1990
  7. Forristall, R., Heat Transfer Analysis and Modeling of a Parabolic Trough Solar Receiver Implemented in Engineering Equation Solver, Technical Report NREL/TP-550-34169, Colorado, USA, 2003
  8. Nouanegue, H., Muftuoglu, A., Bilgen, E., Conjugate Heat Transfer by Natural Convection, Conduction and Radiation in Open Cavities, International Journal of Heat and Mass Transfer, 51 (2008), pp. 6054-6062
  9. Rohsenow, W.M, Hartnett, J.P., Cho, Y.I., Handbook of Heat Transfer, McGraw-Hill Handbooks, New York, USA, 1998
  10. ANSYS FLUENT Theory Guide, Release 15.0, ANSYS Inc., Canonsburg, 2013
  11. ANSYS FLUENT User's Guide, Release 15.0, ANSYS Inc., Canonsburg, 2013
  12. Cohen, M. F., Greenberg, D. P., The Hemi-Cube: A Radiosity Solution for Complex Environments, Computer Graphics, 19 (1985), pp. 31-40
  13. Ho, C. K., et al., Characterization of Pyromark 2500 for High-Temperature Solar Receivers, Proceedings, 6th International Conference on Energy Sustainability of ASME, San Diego, USA, 2012, pp. 509-518

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence