ZEMCH 2015 - International Conference Proceedings | Page 691

Figure 4.2 Nanofluid based solar collectors temperatures (T_Coll) and hot storage tank temperatures (T_TANKout) – TRNSYS Graph In the figures 4.3 and 4.4 it is shown how the temperature of the fluid stream exiting the hot storage tank increases to the set point value of 85°C, by the auxiliary heating, only when values lower than 75°C are measured and the controller is ON. Figure 4.3 Water based solar collectors - Hot storage tank fluid stream temperatures (T_TANKout) and auxiliary heater fluid stream temperatures (T_HXout) – TRNSYS Graph Dynamic simulation of a solar cooling HVAC system with nanofluid 689