Experimental characterization of an energy efficient chiller-less data center test facility with warm water cooled servers

A study on the effect of ground surface boundary conditions in modelling shallow ground heat exchangers

“…Due to the major heat is removed by water, the size of air tunnels and fans can be can be significantly reduced. In that case, the proportion of cooling energy need to total energy need reduce from standard of 45% to 3.5% [41]. Besides, through control the temperature at a 60 o C -85 o C, the application of water-cooled system in server or rack level are able to increasing the processor`s performance by 33% [42].…”

Effect of warm water cooling for an isolated hybrid liquid cooled server

“…While several reports have discussed the use of hybrid air-liquid cooling by servers and in data centers [14,15,16,17], there has been little discussion of air flow and ducting for the auxiliary components. The server chassis with a form factor 2OU (88.9 mm) incorporates Intel Xeon 2570 dual CPUs, each dissipating a thermal design power (TDP) of 115W; specifications of the processor available in [21].…”

Experimental and numerical dynamic investigation of an energy efficient liquid cooled chiller-less data center test facility

“…These experimental tests are then used to characterize the thermal resistance and conductance of each individual component. Several one day tests were conducted [5,15] to characterize the energy efficiency of the cooling system during normal operation. It was found that the cooling power utilization effectiveness (PUE) is approximately 1.03 [15], which means that the cooling power consumption is about 3.5% of IT power consumption.…”

“…Several one day tests were conducted [5,15] to characterize the energy efficiency of the cooling system during normal operation. It was found that the cooling power utilization effectiveness (PUE) is approximately 1.03 [15], which means that the cooling power consumption is about 3.5% of IT power consumption. All of these results help to optimize the system design and determine the ideal operating conditions to achieve better energy efficiency.…”