Optimizing number of CRAC units & Supply Air Velocity 1.Maximum heat load : 154 X 8 = 1264 KW (1.26 MW) 2.Heat capacity of each CRAC : 150 KW 3.Minimum number of CRAC required: [8.4] = 9 4.The system was designed with 9 CRAC units and velocity of supply air was adjusted to avoid short circuiting and temperature stratification 5.In this case the velocity of 2.2 m/s is coming out to be higher 6.The simulation was conducted with velocity of 1.6, 1.7, 1.8, 1.9, 2.0 & 2.1 m/s 7.The results with 1.8 m/s showed best results
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