| Issue |
E3S Web Conf.
Volume 70, 2018
17th International Conference Heat Transfer and Renewable Sources of Energy (HTRSE-2018)
|
|
|---|---|---|
| Article Number | 01021 | |
| Number of page(s) | 5 | |
| Section | Renewable Energy Sources and Energy Storage | |
| DOI | https://doi.org/10.1051/e3sconf/20187001021 | |
| Published online | 03 December 2018 | |
Simplified methodology to estimate the emissivity for roof covers
Department of Heat Engineering, Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, Szczecin, al. Piastów 17, 70-310, Szczecin, Poland
* Corresponding author: zbigniew.zapalowicz@zut.edu.pl
In a number of countries, producers of roof covers are not obliged by law to estimate the reflectivity and emissivity of their products and make them generally available. However, information concerning these parameters that characterize the surface of roof cover is relevant for building's heat calculations. Adequate choice of kind and color of the roof surface affects the amount of heat transferred between the interior and the environment. Simplified research methodology has been proposed in the paper. This methodology requires that experimental research is carried out and characteristic temperatures of roof and of the air are determined. It is then possible to estimate the emissivity for roof cover from the model of energy balance.
© The Authors, published by EDP Sciences, 2018
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