Fig. 6 shows the results of 1 kg chilled water supply. In the figure, area 1 shows the exergy destruction during chilled energy supply after chilled water mixing, area 3 is the diffusing exergy
destruction during chilled mixing, and area 2 plus area 3 shows
exergy destruction during chilled energy supply directly with
5 C. Exergy destruction can be saved about 15.9%, which increases
the chilled water supply efficiency, and the system thermodynamic
performance is improved too, mainly resulting into the system
with hardly energy increment with chilled storage