International Scientific Journal


The performance of a new design of batch solar water heater has been studied. In this system, the collector and storage were installed in one unit. Unlike the conventional design consisting of small diameter water tubes, it has a single large diameter drum which serves the dual purpose of absorber tube and storage tank. In principle it is a compound parabolic collector. The drum is sized to have a storage capacity of 100 liter to serve a family of four persons. The tests were carried out with a single glass cover and two glass covers. The tests were repeated for several days. Performance analysis of the collector has revealed that it has maximum mean daily efficiency with two glass covers as high as 37.2%. The maximum water temperature in the storage tank of 60°C has been achieved for a clear day operation at an average solar beam radiation level of 680 W/m2 and ambient temperature of 32°C. To judge the operating characteristics and to synchronize utility pattern of the collector, the different parameters such as efficiency, mean plate temperature and mass flow rate has been investigated.
PAPER REVISED: 2007-09-17
PAPER ACCEPTED: 2007-11-01
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THERMAL SCIENCE YEAR 2007, VOLUME 11, ISSUE Issue 4, PAGES [135 - 142]
  1. Schmidt, C., Geotzberger, A., Single-Tube Integrated Collector Storage Systems with Transparent Insulation and Involute Reflector, Solar Energy, 45 (1990), 2, pp. 93-100
  2. Mason, A. A., Davidson, J. H., Measured Performance and Modeling of an Evacuated-Tube, Integral-Collector-Storage Solar Water Heater, ASME Journal Solar Energy Engineering, 117 (1995), 3, pp. 221-228
  3. Kaptan, I. N., Kile, A., A Theoretical and Experimental Investigation of a Novel Built-in-Storage Solar Water Heater, Solar Energy, 57 (1996), 5, pp. 393-400
  4. Smyth, M., Eames, P. C., Nortan, B., A Comparative Performance Rating for an Integrated Solar Collector/ Storage Vessel with Inner Sleeves to Increase Heat Retention, Solar Energy, 66 (1998), 4, pp. 291-303
  5. Tripanagnostopoulos, Y., Souliotis, M., Nousia, Th., CPC Type Integrated Collector Storage Systems, Solar Energy, 72 (2002), 4, pp. 327-350
  6. Tripanagnostopoulos, Y., Souliotis, M., ICS Solar Systems with Horizontal Cylindrical Storage Tank & Reflector CPC or Involute Geometry, Journal Renewable Energy, 29 (2004), 1, pp. 13-38
  7. Grass, C., Schoelkopf, W.,, Comparison of the Optics of Non Tracing and Novel Types of Tracing Solar Thermal Collectors for Processes Heat Applications up to 300 °C, Solar Energy ,76 (2004), 1-3, pp. 207-215
  8. ***, ISO 9459-2., Solar Heating - Domestic Water Heating Systems Performance Test for Only Solar Systems, 1994
  9. ***, ISO/DIS 9459-3., Solar Heating - Domestic Water Heating Systems Performance Test for Solar Plus Supplementary Systems, 1995
  10. Sukhatme, S. P., Solar Energy, Tata Mc Graw Hill publishing Ltd., N. Delhi, 1999, pp. 61-156
  11. Holman, J. P., Heat Transfer, International edition, Mc Graw Hill, New York, USA, 1997, pp. 383-480
  12. Garg, H. P., Advances in Solar Energy Technology, Vol. 1., D, Reidel Publishing Company, Tokyo, 1987, pp. 587-637
  13. Mangal, B. S., Solar Power Engineering, Tata Mc Graw Hill publishing Ltd., N. Delhi, 1993, pp. 22-95
  14. Duffie, J. A., Beckman, W. A., . Solar Engineering of Thermal Processes, 2nd ed. Johm Wiley and Sons, New York, USA, 1991, pp. 197-280
  15. Varghese, J., Batch Type Solar Water Heater, Thesis submitted to S. G. Amravati University, Shri Sant Gajanan Maharaj College of Engineering, Shegaon, India, 2000, pp. 28-32

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