Case Study -4 : Enterprise DC

Facility DC Summery: Brownfield Data center

Sr No	Description	UOM	Value
1	Data center area	Sq. ft.	2347
2	Total no’s of racks	No’s	60
3	Installing UPS capacity 3x500kVA No’s	kVA	1500
4	Data center UPS load (IT load) – Presently	kW	202
5	Installed cooling capacity	TR/kW	185/660
6	PAHU units 43TRx2 No’s	TR/kW	86/301
7	DX units 33TRx3 No’s	TR/kW	99/346
8	No’s of supply grills	No’s	52
9	No’s of Return air grills	No’s	54
10	Air distribution system	Type	Ceiling & Room return

Objective of DCIO services

Increase energy efficiency hence save energy cost without affecting the performance of the data center (with commited ROI of 16.5months)
Effective utilization of delivered air flow to the grill level
Reduces the wastages and re-circulation of cold air
Actual rack power consumption and recovering lost rack capacity
Ensure the uptime/availability of IT by avoiding downtime
Effective utilization of data center white space and rack “U” space
Energy efficient data center with optimal utilization of capacity
Predict the impact of cooling failure on the data center resilience (Transient analysis)

3D Virtual facility

Lets validate 2 simulations scenarios in terms of cooling efficiency (temperature and CFM) with benchmark parameters

Before recommendation

After recommendation

Rack mean inlet temperature

Rack inlet temperatures are high in some of the racks

Rack inlet temperatures limits are acceptable

Thermal profile – Top of cabinet

Huge amount of air mixing & hot air short-circuiting

Less amount of air mixing

Floor void temperature

Cold air is covering entire false floor area
which results to low CFM delivery

Cold air is not covering entire false floor area
which results to high CFM at grill level

3D Virtual facility

Lets validate 3 simulations scenarios in terms of cooling efficiency (temperature and CFM) with benchmarking parameters

Note: All racks temperature are within acceptable limits and rack no 25 & 27 are temperature is high and these devices are Cisco catalyst devices which throw the air at side of the racks

Note: All racks humidity ranges are within acceptable limits

Transient analysis

Comparison before and after DCIO

Final Benefits

Sr No	Description	Units	Before DCIO services	After DCIO services	Improvement Area’s
Monitored Data Analysis
1	Total Energy Consumption	kW	160	129.3	30.7kW/hr Savings : Rs/- 21Lakhs/year
2	Rack intake temperature	˚C	17 – 34	18 – 22	Close control
3	Rack outlet temperature	˚C	19 – 36	22 – 32	Close control
4	CRAC average supply temperature	˚C	11 – 18	12 – 16	Efficient
5	CRAC average return temperature	˚C	13.5 – 21	22 – 26	Efficient
6	Total CFM delivery (CFM Optimization)	CFM	14516	20385	+5869