Figure 2 shows a plot of the operating partial cooling-only PUE versus daily average ambient wet-bulb temperature. The cooling energy use consisted of three components: fans for air distribution to the data hall; fans for air distribution to the UPS hall; ...
the components of a system and its surroundings, that is, other systems.Each open system is part of a larger system that receives and gives off energy.In an open system, the energy is continually resupplied from sources outside the system.In the example of the mill wheel, if the non-...