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Numerical analysis of a thermosyphon solar water heater

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Języki publikacji
EN
Abstrakty
EN
Solar water heaters with natural circulation are one of the most popular solar device for domestic or industrial uses. However, their theory and designing methods are still an open problem due to the complicated thermal and flow processes occurring during installation action. In the presented paper the similarity theory of the solar thermosyphon water heater is developed. A group of dimensionlessparameters that determine the performance of the heater are derived. Results of numerical analysis of a thermosyphon solar water heater are worked out as the non-dimensional formulas for heater daily efficiency and water maximum average temperature calculations.
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autor
  • Heat Engineering Institute, Warsaw University of Technology
Bibliografia
  • [1] CLOSE D. J.: The performance of solar water heater with natural circulation, Solar Energy 6(1962), 33-38
  • [2] GUPTA C. L., GARG H. P.: System design in solar water heater with natural circulation, Solar Energy 12(1968), 163-182.
  • [3] ONG K. S.: A finite-difference method to evaluate the thermal performance of a solar water heater, Solar Energy 16(1974), 137-147.
  • [4] ONG K. S.: An improved computer program for the thermal performance of a solar water heater, Solar Energy 18(1976), 183-191.
  • [5] SHITZER A., KALMANOVIZ D., ZVIRIN Y., GROSSMAN G.: Experiments with a flat-plate solar heating system in thermosyphonic flow, Solar Energy 22(1978), 27-35.
  • [6] HUANG B. J.: Similarity theory of solar water heater with natural circulation, Solar Energy 25(1979), 105-116.
  • [7] MERTOL A., PLACE W., WEBSTER T., GREIF R.: Detailed loop model (DLM) analysis of liquid solar thermosyphon with heat exchangers, Solar Energy 27(1981), 367-386.
  • [8] EE-TONG PAK: Thermally stratified hot water storage, Solar World Congress - Proc. of the Biennial Congress of the International Solar Energy Society, Denver, Colorado, USA, 19-23 Aug. 1991, 1417-1423.
  • [9] YOUNG M. F., BERGQUAM J. B.: The performance of a thermosyphon solar domestic hot water system with hot water removal, Solar Energy 32(1984), 655-638.
  • [10] HOLLANDS K. G., LIGHISTONE M. F.: A review of low-flow, stratified - tank solar water heating systems, Solar Energy 43(1989), 97-105.
  • [11] PLUTA Z., POMIERNY W.: Experimental verification of the models of solar thermo- syphonic installation operated under normal and simulated condition, a part of the 3rd stage of the topic CPBP 02.21 No. 2.1 'Systems for acquisition, transormation and accumulation of non-conventional energy for heating purposes', IPPT PAN, Warsaw 1988 (in Polish).
  • [12] DUFFIE J. A., BECKMAN W. A.: Solar engineering of thermal processes, John Wiley & Sons, New York 1991.
  • [13] PLUTA Z.: Investigations of the models of solar thermosyphonic installation for pre- paration of utility hot water under laboratory conditions, Proc. of the XI Symposium on Heat and Mass Transfer, Eds. of Technical University of Białystok (Materiały IX Sympozjum Wymiany Ciepła i Masy, Wyd. Politechniki Białostockiej), 1995. 183-191 (in Polish).
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Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BGPK-0055-1703
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