b'Engineer Innovation | Electronics & Semiconductor 60%50%40%Valve Position30%20%10%0%TimeFigure 4: PID controllers were included in the model to modulate theFigure 5: The valve opening is modulated by a PID controller valve openingscomfort, etc.); a second loop, runningdrawing of the StatePoint unit is between floors to collect and transportdepicted in figure 1. In the StatePoint the heat of all the floors to the thirdunit water is used to indirectly cool data loop, which rejects all the heat to thehalls. StatePoint unit operates more environment.efficiently and can be deployed in a wider range of environmental The preliminary layout and the systemconditions (hot and high humid climate) sketch, the design goals and theas compared with other indirect cooling boundary conditions were known.systems. It is expected that the Various operating modes of the dataStatePoint systems reduce the water center, including how the systemconsumption usage by more than 20 responds in the event of a failure of apercent for data centers in hot and critical component, require as many ashumid climates and by almost 90 ten scenarios to be modeled.percent in cooler climates, in comparison with previous indirect StatePoint Liquid Cooling system, a newcooling systems. The StatePoint unit can evaporative cooling system with aoperate in various stages of cooling to registered trademark of Nortek Airoptimize water and power consumption, Solutions, was deployed. The schematicdepending upon outside air and process Mass flow rate kg/sMin Maxt=500secFigure 6: The contour map of mass flow rate of water in the discharge pipe.50'