BLOG

Fan Law

Fan Law

The fan law, or affinity law, states that the power used by an electric motor to rotate a pump or fan is proportional to the cube of its rotational speed. This 3 minute video explains the fan law and its effect on data center power use. Data Center Example Lets say we have a 15Read more about Fan Law[…]

CRAC vs CRAH

CRAC vs CRAH

CRAC – Computer Room Air Conditioner A CRAC unit is exactly like the air conditioner at your house.  It has a direct expansion (DX) refrigeration cycle built into the unit.  This means that the compressors required to power the refrigeration cycle are also located within the unit.  Cooling is accomplished by blowing air over a coolingRead more about CRAC vs CRAH[…]