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Thermo-ecological optimization of a solar collector

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  • Szargut, J.
  • Stanek, W.

Abstract

The depletion of non-renewable natural exergy resources (the thermo-ecological cost) has been accepted as the objective function for thermo-ecological optimization. Its general formulation has been cited. A detailed form of the objective function has been formulated for a solar collector producing hot water for household needs. The following design parameters have been accepted as the decision variables: the collector area per unit of the heat demand, the diameter of collector pipes, the distance of the pipe axes in the collector plate. The design parameters of the internal installation (the pipes, the hot water receiver) have not been taken into account, because they are very individual. The accumulation ability of hot water comprising one day has been assumed. The objective function contains the following components: the thermo-ecological cost of copper plate, copper pipes, glass plate, steel box, thermal insulation, heat transfer liquid, electricity for driving the pump of liquid, fuel for the peak boiler. The duration curves of the flux of solar radiation and absorbed heat have been elaborated according to meteorological data and used in the calculations. The objective function for economic optimization may have a similar form, only the cost values would be different.

Suggested Citation

  • Szargut, J. & Stanek, W., 2007. "Thermo-ecological optimization of a solar collector," Energy, Elsevier, vol. 32(4), pages 584-590.
    • Handle: RePEc:eee:energy:v:32:y:2007:i:4:p:584-590
    DOI: 10.1016/j.energy.2006.06.010
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    References listed on IDEAS

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    1. Torres-Reyes, E & Navarrete-González, J.J & Zaleta-Aguilar, A & Cervantes-de Gortari, J.G, 2003. "Optimal process of solar to thermal energy conversion and design of irreversible flat-plate solar collectors," Energy, Elsevier, vol. 28(2), pages 99-113.
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