Modelling heat transfer problems are often carried out by using experimental data not only pure analytical methods. These solutions are affected by several parameters, so the deduction of formulas, based on complicated interactions, cannot be solved without theoretical knowledge. our goal is on base of similarity theory building a model of heat transfer properties of an open pond that installed in climate of Hungary. in our work we have calculated heat transfer on the surface of an open pond by evaporation for the base of future studies.
 Rho S-B.: Temperature Prediction for the Wastewater Treatment Process using Heat Transfer Model. Journal of the Korea academia-industrial cooperation Society, 15/3. (2014) 1795–1800. https://doi.org/10.5762/KaiS.2014.15.3.1795
 Fernández-arévalo T., Lizarralde i., Grau p., ayesa e.: New systematic methodology for incorporating dynamic heat transfer modelling in multiphase biochemical reactors, Water Research, 60. (2014) 141–155. https://doi.org/10.1016/j.watres.2014.04.034