Solar thermal collectors and applications
Polysun simulation program
Polysun program provides dynamical annual simulations of solar thermal systems and helps to optimise them [120]. It operates with dynamic time steps from 1 s to 1 h, thus simulation can be more stable and exact. The program is user friendly and the graphic-user interface permits a comfortable and clear input of all system parameters. All aspects of the simulation are based on physical models that work without empirical correlation terms. In addition
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X = |
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(84) (85) |
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FR Y = FR(ra)n-R FR |
the program performs economic viability analysis and ecological balance, which includes emissions from the eight most significant greenhouse gasses, thus the emissions of systems working only with conventional fuel and systems employing solar energy can be compared. Program Polysun was validated by Gantner [121] and was found to be accurate to within 5-10%.
