THERMAL SCIENCE

International Scientific Journal

External Links

NUMERICAL STUDY OF A MODIFIED TROMBE WALL SOLAR COLLECTOR SYSTEM

ABSTRACT
The paper presents numerical analysis of efficiency of the modified Trombe wall with forced convection. The analyzed system comprises a double glass glazing, and a massive wall with opening and central channel in it. In order to increase the efficiency, a fan is provided at the bottom vent of the wall. It is more advanced as compared with simple Trombe solar wall with a relatively low thermal resistance, which is taken as a reference in experimental analysis. The mathematical model, composed for the massive solar wall efficiency, is usually very complicated and assessment of the thermal behavior requires the use of thermal simulation techniques. This paper presents steady-state and one-dimensional mathematical model for simplified analysis of thermal efficiency of modified Trombe solar wall. The results from presented model were analyzed to predict the effects of variations in the operational parameters on the solar wall efficiency: solar radiation intensity, air velocity in the entrance duct, and room air temperature. The results have been compared with the available experimental study, and the comparison has shown satisfactory agreement. The obtained results have be used for simple and fast running design tools that designers can use in the early phases of the design process for approximate calculations of efficiency of the passive solar heating systems.
KEYWORDS
PAPER SUBMITTED: 2008-10-14
PAPER REVISED: 2008-10-24
PAPER ACCEPTED: 2009-01-01
DOI REFERENCE: https://doi.org/10.2298/TSCI0901195D
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2009, VOLUME 13, ISSUE 1, PAGES [195 - 204]
REFERENCES
  1. Smolec, W., Thomas, A., Theoretical and Experimental Investigations of Heat Transfer in a Trombe Wall, Energy Conversion and Management, 34 (1993), 5, pp. 385-400
  2. Bhandari, M. S., Bansal, N. K., Solar Heat Gain Factors and Heat Loss Coefficients for Passive Heating Concepts, Solar Energy, 53 (1994), 2, pp. 199-208
  3. Zrikem, Z., Bilgen, E., Theoretical Study of a Composite Trombe-Michel Wall Solar Collector System, Solar Energy, 39 (1987), 5, pp. 409-419
  4. Akbarzadeh, A., Charters, W.W. S., Lesslie, D. A., Thermo Circulation Characteristics of a Trombe Wall Passive Test Cell, Solar Energy, 28 (1982), 6, pp. 461-468
  5. Yedder, R. B., Bilgen, E., Natural Convection and Conduction in Trombe Wall Systems, International Journal of Heat and Mass Transfer, 34 (1991), 4-5, pp. 1237-1248
  6. Shen, J., Lassue, S., Zalewski, L., Huang, D., Numerical Study of Classical and Composite Solar Wall by TRNSYS, Journal of Thermal Science, 16 (2007), 1, pp. 46-55
  7. Srivastava, A., Kumar, A., Tiwari, G. N., Thermal Performance of a South Facing Wall as Solar Collector Storage the System, International Journal of Energy Research, 4 (1980), 4, pp. 309-316
  8. Smolec, W., Thomas, A., Problems Encountered in Heat Transfer Studies of a Trombe Wall, Energy Conversion and Management, 35 (1994), 6, pp. 483-491
  9. Lambic, M., Solar Walls - The Passive Solar Heating, University of Novi Sad, Technical Faculty Zrenjanin, Serbia, 2000
  10. Matuska, T., A Simple Trombe Wall: Comparsion of Different Glazings, Proceedings, 3rd ISES Congress Eurosan2000, Copenhagen, 2000, http://www.fsid.cvut.cz/~matuskat/publikace/eurosun2000.pdf

© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, 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