THERMAL SCIENCE

International Scientific Journal

RESEARCH IN SOLAR ENERGY AT THE 'POLITEHNICA' UNIVERSITY OF TIMISOARA: STUDIES ON SOLAR RADIATION AND SOLAR COLLECTORS

ABSTRACT
A short overview of a more than 30 years long history and results of research and thermal applications of solar energy at the 'Politehnica' University of Timisoara, Romania, are presented. The main directions approached are: actinometry, studies on materials and greenhouse effect, thermal collectors, industrial and home thermal applications, computer simulation of physical phenomena, and concentrators. This paper focuses on the conception and building of a dedicated laboratory and on the experimental results that allowed the development of industrial and home applications.
KEYWORDS
PAPER SUBMITTED: 2008-04-02
PAPER REVISED: 2009-11-16
PAPER ACCEPTED: 2009-12-10
DOI REFERENCE: https://doi.org/10.2298/TSCI1001157L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2010, VOLUME 14, ISSUE 1, PAGES [157 - 169]
REFERENCES
  1. De Sabata, C., Use of Solar Energy in Romania, Past and Future, Proceedings, 27th Congress of the American - Romanian Academy of Arts and Sciences, 2002, Oradea, Romania, Vol. I, 2002, pp. 265-266
  2. De Sabata, C., et al., Solar Energy, Achievements and Future Trends (in Romanian), Studies and Research in Physics (present - Romanian Reports in Physics), Academia Romana, Bukarest, 34 (1982), 6, pp. 549-563
  3. Marcu, C., Luminosu, I., Short Report on Study and Utilization of Solar Energy at the Technical University of Timisoara, Department of Physics, Buletinul Stiintific al Universitatii "Politehnica" din Timisoara, Matematica-Fizica (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), 40(54) (1995), 1, pp. 85-103
  4. De Sabata, C., Marcu, C., Luminosu, I., Solar Energetics at the Politehnica University of Timisoara, Proceedings, 2th International Conference Renewable Sources and Environmental Electro-Technologies RSEE 98, Oradea, Romania, Analele Universitatii din Oradea, Electrotehnica, Vol. X, 1998, pp. 14-16
  5. De Sabata, C., et al., Solaris 1 Differential, Auto Compensated Bolometer for Solar Radiation Intensity Measurement (in Romanian), Instalatii in Constructii, Academia Romana, Bucuresti, Septembrie 1984, pp. 40-44
  6. De Sabata, C., Solaris 2, Portable Pyranometer (in Romanian), Instalatii in Constructii, Academia Romana, Bucharest, Septembrie-Octombrie 1986, pp. 44-47
  7. De Sabata, C., et al., On the Spectral Sensitivity of the Solaris 2 Pyranometer, Proceedings, Lucrarile Seminarului de Matematica - Fizica (presently Buletinul Stiintific al Universitatii "Politehnica" din Timisoara, Matematica-Fizica), Noiembrie 1984, pp. 85-88
  8. De Sabata, C., et al., The Characteristics of the Radiation Transducer of the Solaris 2 Pyranometer in the Infrared Range, Proceedings, National Conference in Solar Energy, "Politehnica" University of Timisoara, 1989, pp. 54-58
  9. Luminosu, I., Nagy, M., Apparatus and Instruments for Measuring Physical Quantities that Describe the Processes of Heliothermal Conversion Developed at the "Politehnica", University of Timisoara, Proceedings, Pannonian Applied Mathematical Meetings, 2001 (PAMM), Bulletins for Applied and Computer Mathematics (BAM-1902/2001) (XCVI-C), Budapest University of Technology and Economics, 2001, pp. 111-118
  10. Terniceanu, S., Luminosu, I., A Method for Measuring Solar Radiation Intensity Mean Value, Proceedings, Lucrarile Seminarului de Matematica-Fizica (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), Noiembrie 1986, pp. 117-120
  11. Mihailovici, D., et al., The Solar Potential in the Western Part of Romania in 1985 (in German), Proceedings, Lucrarile Seminarului de Matematica - Fizica (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), Mai-Noiembrie 1987, pp. 99-104
  12. Luminosu, I., Nagy, M., Installations and Measurements for Determining the Power Contribution of Diffuse Solar Radiation to the Working Heat of the Flat Solar Collector, Proceedings, Pannonian Applied Mathematical Meetings, 2001 (PAMM), (Bulletins for Applied and Computer Mathematics (BAM-1901/2001) (XCVI-C)), Budapest University of Technology and Economics, 2001, pp. 103-110
  13. De Sabata, C., et al., Laboratory Research for Increasing Optical Efficiency of Plane Solar Collectors (in Romanian), Buletinul Stiintific al Universitatii "Politehnica" din Timisoara, Matematica - Fizica (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), 24 (38) (1978), 1, pp. 43-45
  14. De Sabata, C., Optical Properties of the Glass Dome Used in the Structure of a Pyranometer (in Romanian), Proceedings, Lucrarile Seminarului de Matematica-Fizica (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), Noiembrie, 1983, pp. 95-98
  15. De Sabata, C., Luminosu, I., Experimental Research and Theoretical Remarks on the Use of Some Climatization Sheets (in Romanian), Buletinul Stiintific al Universitatii "Politehnica" din Timisoara, Matematica-Fizica (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), 25(39) (1980), 2, pp. 83-87
  16. De Sabata, C., et al., Summer Climatization Based on Solar Energy: Theoretical Considerations and Experimental Results, Scientific Bulletin of the "Politehnica"University of Timisoara, Transactions on Mechanics 53(67) (2008), 3, pp. 65-68
  17. Luminosu, I., Increase of Flat Solar Collectors Efficiency through the Study of Physical Phenomena Involved in Thermo-Conversion (in Romanian), Ph. D. thesis, "Politehnica" University of Timisoara, Romania, 1993
  18. De Sabata, C., Craciun, P., Marcu, C., Influence of the Helio-Thermal Effect on the Stocking Capacity of Heat Obtained by Thermo-Solar Conversion (in French), Proceedings, Lucrarile Seminarului de Matematica-Fizica (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), Mai, 1986, pp. 91-96
  19. De Sabata, C., Craciun, P., Marcu, C., Study of the Greenhouse Effect Realized with an Oil Layer (in Romanian), Proceedings, Lucrarile Seminarului de Matematica - Fizica (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), Mai, 1986, pp. 81-84
  20. Marcu, C., De Sabata, C., Craciun, P., Use of Some Black Fluids for Layered Collectors (in Romanian), Proceedings, Lucrarile Seminarului de Matematicã - Fizicã (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), Mai, 1984, pp. 88-89
  21. De Sabata, C., Study of Infrared Absorption by Some Materials Used for Capturing Solar Energy (in Romanian), Buletinul Stiintific al Universitatii "Politehnica" din Timisoara, Matematica - Fizica (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), 24(38) (1978), 1, pp. 41-42
  22. Marcu, C., Luminosu, I., Efficient Use of the Collector Surface in Obtaining Technological Air, Proceedings, Lucrarile Seminarului de Matematica - Fizica, Universitatea "Politehnica" din Timisoara (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), Mai, 1983., pp. 79 - 82
  23. Luminosu, I., Study on Temperature Performance of a Flat Plane Sun Collector in View of Obtaining Technological Hot Air, Proceedings, Lucrarile Seminarului de Matematica - Fizica, Universitatea "Politehnica" din Timisoara (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), Mai, 1983., pp. 103-106
  24. De Sabata, C., Marcu, C., Luminosu, I., On the Energy Flow Rate for a Plane Solar Collector That Provides Technological Hot Air, Proceedings, Lucrãrile Seminarului de Matematica - Fizica, Universitatea "Politehnica" din Timisoara (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), Mai, 1983., pp.99-102
  25. Luminosu, I., Nagy, M., Experimental and Numerical Calculation Study of the Heat Loss Coefficient at the Flat-Plane Collectors, Proceedings, Pannonian Applied Mathematical Meetings, 2003 (PAMM), Budapest, 2003, (Bulletins for Applied and Computer Mathematics (BAM-2097)), Technical University of Budapest, 2003, pp. 51-60
  26. Luminosu, I., Flat-Plate Solar Collector Technical Constructive Parameters Determination by Numerical Calculation, Considering Temperature Criterion, Romanian Reports in Physics, Romanian Academy, 56 (2004), 1, pp. 13-19
  27. Luminosu, I., Marcu, C., On the Heat Loss of Flat-Plate Solar Collector, Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics-Physics Series, 46 (60) (2001), 1, pp. 64-69
  28. Luminosu, I., Marcu, C., The Actual Value of the Equivalent Transmittance-Absorbance Product of Solar Flat Plate Collectors, by Computer Program and Experimental Determinations, Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series, 44(58) (1999), 2, pp. 92-96
  29. Luminosu, I., New Aspects in the Evaluation of the Efficiency of a Plane Solar Collector Used for Technological Hot Air Preparation (in French), Proceedings, Lucrarile Seminarului de Matematica - Fizica, Universitatea "Politehnica" din Timisoara (present Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series) Mai, 1985, pp. 101-104
  30. De Sabata, C., et al., Thermal Phenomena in the Active Part of Trombe Walls (in Romanian), Proceedings, Lucrarile Seminarului de Matematica - Fizica, Universitatea "Politehnica" din Timisoara (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series) Mai, 1986, pp. 81-84
  31. De Sabata, C., et al., Experimental Study on Trombe Wall Efficiency Concerning Dwelling Climatization, Proceedings, Lucrarile Seminarului de Matematica-Fizica, Universitatea "Politehnica" din Timisoara (presently Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics - Physics Series), Mai, 1986, pp. 117-120
  32. Luminosu, I., Experimental Studies and Economic Considerations on a Living Space Heated through Passive Solar Gain and through Electric Power, Thermal Science, 7 (2003), 2, pp. 89 -104
  33. De Sabata, C., Marcu, C., Luminosu, I., Passive Solar Systems Contribution to the Indoor Thermal Comfort (45 N-lat. zone), Proceedings, International Conference Indoor Air Quality and Climate in Central and Eastern Europe, Cluj - 93 (Scientific Book House Publisher, Cluj-Napoca, Romania), 1993, pp. 80-84
  34. De Sabata, C., Luminosu, I., On Possibilities of Partial Air-Conditioning of Dwellings in the Temperature Area Using Passive Techniques, Proceedings, National Conference Solar Energy, "Politehnica" University of Timisoara, 1989, pp. 25-29
  35. Athanasouli, G., Massouporos, P., A Model of the Thermal Restoration Transient State of an Opaque Wall after the Interruption of Solar Radiation, Solar Energy, 66 (1999), 1, pp. 21-31
  36. Peyturaux, R., Solar Energy (in Franch), Press. Univ. de France, Paris, 1968
  37. Lo, S. N. G., Deal, C. R., Norton, B., A School Building Reclad with Thermosyphoning Air Panels, Solar Energy, 52 (1994), 1, pp. 49-58
  38. Torres Reyes, E., Navarrete Gonzales, J. J., Ibarra Salazar, B. A., Thermodynamic Method for Designing Dryers Operated by Flat-Plate Solar Collectors, Renewable Energy, 26 (2002), 4, pp. 649-660
  39. Torres Reyes, E., et al., A Design Method of Flat-Plate Collectors Based on Minimum Entropy Generation, Exergy International Journal, 1 (2001), 1, pp. 46-52
  40. Bejan, A., Entropy Generation Minimization, CRC Press, Boca Raton, Fla., USA, 1996
  41. Luminosu, I., Fara, L., Determination of the Optimal Operation Mode of a Flat Solar Collector by Exergetic Analysis and Numerical Simulation, Energy, 30 (2005), 5, pp. 731-747
  42. Luminosu, I., Fara, L., Thermodynamic Analysis of an Air Solar Collector, International Journal of Exergy, 2 (2005), 4, pp. 385-408
  43. Luminosu, I., Tamasdan, C., Computer Program for Calculation of the Components of Solar Radiation on Arbitrarily Oriented Surfaces (in Romanian), Annals of the University of Oradea, Physics series, tom IV (1994), pp. 84-89
  44. Luminosu, I., Balan, S., Terniceanu, S., A Computer Study on the Daily Variation of the Reflection Coefficient and the Equivalent Absorption-Transmission Factor (in German), Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics-Phyics Series, 38(52) (1993), 2, pp. 151-156
  45. Luminosu, I., Bizerea, M., Popa-Luminosu, C., Possible Values of Some Physical Quantities Characterizing the Conversion of Solar Energy into Heat Obtained by Numerical Simulation (in Romanian), Proceedings, National Conference for Installations in Civil Engineering and Ambient Comfort, "Politehnica" University of Timisoara, 2003, pp. 305-310
  46. Luminosu, I., Marcu, C., The Actual Value of the Equivalent Transmittance-Absorbance Product of Solar Flat Plate Collectors by Computer Program and Experimental Determinations, Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics-Physics Series, 44 (58) (1999), 2, pp. 92-96
  47. Luminosu, I., Balan, S., Terniceanu, S., Computer Simulation of the Hourly and Daily Variation of the over Temperature of a Solar Collector (in German), Scientific Bulletin of the "Politehnica" University of Timisoara, Mathematics-Physics Series, 38(52) (1993), 2, pp. 157-161
  48. Hottel, H. C., A Simple Model for Estimating the Transmittance of Direct Solar Radiation through Clear Atmosphere, Solar Energy, 18 (1976), 1, pp. 129-139
  49. Temp, R. C., Coulson, K. L., Solar Radiation Incident upon Slopes of Different Orientation, Solar Energy, 19 (1977), 2, pp. 179-184
  50. Badescu, V., Verification of Some Very Simple Clear and Cloudy Sky Models to Evaluate Global Solar Irradiance, Solar Energy, 61 (1997), 4, pp. 251-264
  51. Budisan, N., et al., Revival by Automation Induction Generator for Distributed Power Systems in Romanian Academic Research, Renewable Energy, 32 (2007), 9, pp. 1484-1496

© 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