Temperature measurement obtained by globe thermometer was conducted in order to determine the approximate
amount of mean temperature radiation tr, m [°C] by using the three level Vernon-Jokl thermometer. Black ball
thermometer is used to derive the approximate value of mean temperature radiation from the observed simultaneous
temperatures readings of globe temperature (tg) [°C], air temperature and air velocity surrounding the sphere [3].
Measurements done with this device were conducted at 2 measuring locations during working shift. The values of
global temperature, measured by Vernon-Jokl were statistically processed. Graphical processing of data obtained by
measuring of global temperature can be seen in Figure 6. On the horizontal axis measuring time is shown while on
vertical axis the final temperature of the globe temperature is shown.