This presentation was originally delivered at AFCOM's Data Center World conference in May, 2014 in Las Vegas, Nevada. The presentation discuss the state of cooling and airflow management, and also introduces Upsite's newest solution, AisleLok Modular containment. For more information, please visit http://upsite.com/aislelok-modular-containment

1. LARS STRONG, P.E.
What‟s Next in Cooling?
Capacity, Containment, & More

2. Agenda
 The State of Computer Room Airflow Management
 Understanding Cooling Utilization and Bypass Airflow
 The Next Opportunity in Airflow Management:
AisleLok Modular Containment

3. The State of Airflow Management
2002 Uptime Institute Research
Bypass Airflow* 60%
Hot Spots 10%
Cooling Capacity 2.6x
2013 Upsite Technologies
Research
Bypass Airflow* 48%
Hot Spots 20%
Cooling Capacity 3.9x
*More accurately, “Raised Floor Bypass Open Area” in today‟s terminology.

4. The Research
Raised
floor
area
(sq ft)
# of
running
cooling
units
Raised
floor
bypass
open area
(%)
Hot spots
(% of
cabinets)
Cold spots
(% of
cabinets)
(Data from
6 sites)
Proper
perforated
tile
placement
(%)
Cooling
Capacity
Factor
(CCF)
Averages 7,527 8 48% 20% 35% 77% 3.9
Minimum 720 2 13% 0% 0% 7% 1.2
Maximum 37,000 40 93% 86% 86% 100% 32.0
Recommended n/a n/a <10% 0% 0% 100% 1.2
Conclusion: Inefficient cooling configuration / airflow management is the
problem; capacity is not the problem.

5. But Why?
 Cooling capacity is difficult to quantify
 It‟s hard to justify initiatives, determine ROI
 Mixed messages in the market,
vendor influence
 No „one-size-fits-all‟ solution
 People paying the electric bill
detached from the data center
 Organizational structure hinders cooling optimization

6. High Awareness, Low Implementation
• Open holes in the floor
• Blanking panels often
missing
• Misplaced perforated tiles
• Gaps between racks

7. AFM Problems Are An Opportunity
•Money
•OpEx Savings
•CapEx Savings
•Capacity
•Cooling Capacity
•Room for IT Equipment
•IT Reliability
•Green Initiatives
•CO2 Reduction
“…an average data center could reduce its operating
expense by $32,000 annually, simply by improving
airflow management.”
- Upsite CCF White Paper

8. The Cooling Capacity Factor (CCF)
 A metric Upsite Technologies developed to estimate the
utilization of computer room cooling infrastructure.
 CCF is a ratio of the total rated cooling capacity to
heat load.

9. CCF: How It‟s Calculated
 Convert the total rated (stated) cooling capacity to kW,
divide by 110% of the IT critical load (kW)
 Total rated cooling capacity (210 tons x 3.52) = 739 kW
 110% of the IT critical load = 259 kW
 CCF = 2.8 (739/259)
 Running cooling capacity is 280% of the load

10. Identify Your Opportunity
CCF
Tons x 3.517 = kWc
Cooling unit capacity
 Rated capacity at standard conditions (75 deg F, 45%Rh)
 Capacity goes up with increase in return temperature
 Capacity goes down with decrease in return temperature

11. So What‟s Next?

12. The next Opportunity in AFM

13. Rack Top Baffles

14. Bi-Directional Doors

15. Features Benefits
Core benefits of traditional
containment at a lower cost
• Lower initial cost and lower total cost of ownership (TCO)
• Lower cost allows for wide implementation across multiple
rows or sections.
Easy Installation
Can be self-installed in minutes with minimal use of tools
•Minimal disruption in computer room because no custom
construction required
•Saves time and money
Off-the-Shelf Availability
Ships directly off the shelf to end-user.
• Easy to order; no custom measuring required
• Ready to install out-of-the-box
• No 3rd party engineering, design, or installation required for
set-up
Reusable & Modular
Flexible design can be either applied to hot or cold aisles
• Can be reconfigured quickly and easily.
• Adapts to your data center as it evolves.
Fire Safety • UL94V flammability rated materials.
• Suitable with gaseous fire suppression systems.
• Compliance regional/local fire codes will vary greatly.

16. Computational Fluid Dynamics Modeling
Objective
 Evaluate various shapes and sizes of physical barriers
for airflow management effectiveness
• IT equipment intake air temperature
 Over-rack baffles were evaluated on air coming over the
top of racks and impacting IT equipment intake air
temperature

17. Geometries Considered
 Arc Baffles
 Rectangular Baffles
 Straight Baffles
12, 15, 18”
10, 14, 18” 10, 14, 18”
0, 30, 60 and 90 degrees from horizontal
18”

18. Computational Fluid Dynamics Modeling
 Max cabinet load
10 kW
 Min cabinet load
6 kW
 Total heat load
507 kW
 Rated cooling
capacity 640 kw
 3,056 sq ft
 9 ft ceiling

20. Simplified CFD Layout
 Max cabinet load 10 kW (Red)
 Min cabinet load 6 kW (Blue)
 Total heat load 462 kW
 Rated cooling capacity 475 kw
 9 ft ceiling

21. Maximum Rack Inlet Temperature
50.0
60.0
70.0
80.0
90.0
100.0
110.0
F10 G10 H10 I10 J10 K10 L10 M10 N10 O10 P10 Q10 R10 S10 T10 U10 V10 W10 X10 Y10
Temperature(DegF)
Rack Number
Rack Inlet Temperature - Top
Baseline
30 Deg Baf
30 Deg Baf 24 In Door

22. Baseline

23. Rack Top Baffles Only

24. Rack Top Baffles and Doors

25. 81.4
73.8
76.6
73.8 72.8
71.3 70.5
68.8 69.3
67.2
68.9
67.1
74.7 74.2
78.9
77.4
80.2
78.6
80.5
78.8
88.6
77.5
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
EC
30DC24D
EC
30DC24D
EC
30DC24D
EC
30DC24D
EC
30DC24D
EC
30DC24D
EC
30DC24D
EC
30DC24D
EC
30DC24D
EC
30DC24D
EC
30DC24D
C110A C110B C110C C110D C110E C110F C110N C110P C110Q C110R C110S
TemperatureDegF
Rack Number
Rack Inlet Temperature - Top
Existing Conditions
After installation of Air Flow Management Components
 Avg temperature drop at top of all racks 3.1 degrees F
 Avg temperature drop top of end racks 9.4 degrees F
Site Data: Global Financial Company

26. Site Data: Global Financial Company
81.4
75.6
75
73.8
70
72
74
76
78
80
82
81.4
75.6
75
73.8
Top Top Top Top
EC 24 D 30 DC 30 DC24D
C110A
TemperatureDegF
Maximum Rack Inlet Temperature
Baseline – Existing
Conditions
Aisle End Doors 30 Deg Overhead
Baffles
30 Deg Overhead
Baffles and Aisle End
Doors

27. Adjustable Rack Gap PanelExtended
Retracted

28. • Attaches magnetically
between two racks
• Adjusts to fill in open space
between racks (10” up to 60”)
• Available in heights to fit
42U, 45U, and 47U racks
• Blocks exhaust air circulation
• Contains conditioned air
• Supports reduction of bypass
airflow
Adjustable Rack Gap Panel

29. Stranded Capacity of low temperature set points
Liebert DX Model VH267W 20-Ton Cooling Unit
Environmental
Condition
Total
(kW)
Latent
(kW)
Sensible
(kW)
72°F, 45% Rh 67.0 0 67.0
70°F, 48% Rh 64.5 4.8 59.7
Stranded 2.5 4.8 7.3
Stranded (%) 4% 11%

30. Stranded Capacity from low temperature set points
Liebert Chilled Water Model 600C CRAH Unit
Cooling capacity increase from 7 F return air increase
Environmental
Condition
Total
(kW)
Latent
(kW)
Sensible
(kW)
72°F, 45% Rh 98.0 0 98.0
65°F, 45% Rh 70.0 0 70.0
Stranded 28.0 0 28.0
Stranded (%) 40% 40%

31.  Opportunity for additional early adopters
 Official Roll-out in late June

32. Questions?
Lars Strong, P.E.
Senior Engineer, Upsite Technologies
lstrong@upsite.com
Follow Upsite for the latest news and information on data center AFM.
@UpsiteTech
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