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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Stanovení ochlazovací funkce stromů v areálu Nadace Partnerství v Brně
 Věchetová, Tamara
The urban heat island (UHI) is one of the most important problems in urban landscapes. Trees can reduce the negative impact of UHI through shading and evapotranspiration. Goal of this thesis is to determine the cooling effect of four Norway maples (Acer platanoides) in Nadace Partnerství, the area of Otevřená zahrada in Brno. Sap Flow of these trees was measured with trunk heat balance method (THB) and has taken place during the summer of 2017. It was possible, due to seasonal measurements of tree sap flow, to calculate, how much energy was consumed for process of transpiration. The consumed energy was calculated through specific latent heat which is 2450 kJ/l. Trees were able to transpirate up to 3 685 litres of water per month (June). Monthly, 28,3 to 32,8% energy was consumed for the process of transpiration. If the trees were absent, the energy would be used for heating of the urban surface thus increasing the surrounding air temperature.
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Stanovení ochlazovací funkce zelené střechy v areálu Nadace Partnerství v Brně
 Svobodová, Kateřina
The submitted bachelor thesis aims to determine the cooling effect of the green roof in the premises of the Nadace partnerství in Brno. The evaporation of the green roof was determined by the Bowen ratio. The cooling effect was quantified as the proportion of energy consumed in the vapor to the energy supplied by the Sun. Measurements were carried out by means of sensors for the measurement of climatic parameters in the period April - October 2017. The monthly sum of greenhouse vapor ranged from 34 to 125 mm/m2 and 46-69% of energy was consumed during evaporation.
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