Optimalizace radiacni geometrie svetlych plynovych zaricu [Optimization of radiation geometry of high-temperature gas heater],

Main goal of the dissertation is to minimize acquisition and running costs of heating systems with medium intensity gas radiant heaters. The goal is achieved by a combination of many methods. Firstly, a comprehensive literature, software and market review was done and based on it the first simulations were performed. Among many two approaches were chosen and based on them an experiment was designed. The first approach was CFD and the second new application in MS Excel (analytical model). Based on the experiment it was decided to continue on just with the analytical approach. Mentioned model was further on improved and second prototype was created. After model validation an uncertainty and sensitivity analyses were performed in order to get the order of the most sensitive variables for radiation heat transfer from medium intensity gas radiant heaters. The results are used both for drawing particular conclusions and recommendations for the installation and construction of mentioned radiant heaters but also and especially they show possibilities and ways of application of uncertainty and sensitivity analyses in the field of environmental engineering.