There has been a continuous change - for the better - in the techniques for data center cooling. Even with technological advancements, the general principles remain consistent i.e. air is cooled by chilled water and then this air is strategically moved to hot spots within the data center. However this process, on an average, accounts for 50 per cent of operating costs of traditional data center. The fact is that liquid is 3500 times better when it comes to storing and transferring heat than air. 

There are numerous advantages a close-coupled liquid cooling approach can offer than taking up the inefficient and difficult task of porting air to hot spots.   

-  DCLC (Direct contact liquid cooling) makes use of thermal conductivity of liquid for providing concentrated, dense cooling to targeted surface areas. The dependency on expensive air conditioners, fans and air handling systems is drastically reduced too.   

-  Liquid cooling can be controlled and channelized to specific hear producing areas in a server. By applying cooling directly to the critical components like memory, processor, etc. density, efficiency and performance is maximized.   

- The operating cost is certainly lowered. Lesser dependency on expensive cooling infrastructure like CRAH's, CRAC's, chillers and raised-floor environments decreases operating expenses by 25 to 30 per cent. The data center footprint is reduced too courtesy warm-water DCLC that allow high power density.   

-  There is a considerable improvement in rack utilization. A rack is used to full capacity by eliminating traditional air cooling limitations like hot spots.   

-  DCLC accommodates a variety of rack architecture; sever design and data center environments hence allowing a hassle-free upgrade. It is a flexible, scalable and cost effective solution. 

It is a reliable technology providing significant reduction in the total energy used by a data center. It also allows use of many high power processors that too in a lesser space along with dramatic increase in server density.