Data Center Planning. PUE Overview

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Data Center Planning

PUE Overview

Steve Carter, Americas Managing Principal

Charles Prawdzik Jr., Project Manager

HP Critical Facility Services

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Early Planning Yields Best Results

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Interdependencies

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Data Center Power Usage Effectiveness

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Optimizing Reliability and Efficiency

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6 30 July 2009 6 30 July 2009

Data Center Economics Have Changed

Cost of physical space was a

primary consideration in data

center design.

Cost of power and cooling has

risen to prominence.

Electrical/mechanical

infrastructure makes up 75% of

cost of a new datacenter.

Data center managers now must

prioritize investment in efficient

power and cooling systems to

lower the total cost of operating

(TCO) their facilities.

Belady, C., “In the Data Center, Power and Cooling Costs More than IT Equipment it Supports”, Electronics Cooling Magazine (Feb 2007)

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University of Utah Cooling Options

PUE and Costs are ROM estimates (±30%) based on the proposed systems and are for

reference / comparative purposes only. Detailed analysis would be required to discover

actual PUE and Costs.

Cooling

Option

System Description

Initial

Purchase

Cost

Total

Load

PUE

Annual

Operating

Cost

($0.10/kWh

)

Return on Investment

(compared to Option 1)

1 Conventional chilled water

system without economizers.

Air delivery by raised floor

mounted CRAH units and

liquid cooling systems.

$8,382,500 3,318 kW 1.75

$2,906,570

N/A

2 Conventional chilled water

system with waterside

economizers.

Air delivery by raised floor

mounted CRAH units and

liquid cooling systems

$8,638,250 3,122 kW 1.64

$2,734,870

18 months

3 Conventional chilled water

system.

Air delivery by rooftop AHUs

with outdoor air economizers

$10,325,000 3,089 kW 1.63

$2,705,960

_{8 months}

9 years

4 Conventional chilled water

system.

Air delivery by rooftop AHUs

with evaporative cooling

systems.

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Project: Client: Purpose: Date:

Data Center Master Planning

University of Utah

Mechanical Cooling Options and PUE Comparison July 7, 2009

Page 1 of 5 5K3-UU001

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University of Utah Data Center

Mechanical System Options for Day One Conditions - PUE

Comparison

The options below are based on preliminary design concepts for Day One operations of the new data center. Generation of the Basis of Design is in progress and the concepts are subject to change.

Data Center Day One Configuration

Total area

White Space = 10,000 SF IT Support area = 7,500 SF Common Area = 7,500 SF Total Area = 25,000 SF

White Space Heat Loads

Enterprise Core

5,000 SF x 150 W/SF = 750 kW IT Load = 213 tons HPC

4,000 SF @ 1 mW + 1,000 SF @ 150 kW = 1,150 kW IT Load = 327 tons

Combined Enterprise Core and HPC

1,900 kW total IT x 110% = 2,090 kW total cooling = 594 tons (Salt Lake City elevation)

Piping Systems

Chiller Plant = Tier 3 Enterprise Core = Tier 3 HPC = Tier 1

IT Support = Tier 3 Common = Tier 1

Cooling Options

Cooling Option 1: Conventional chilled water system without economizers. Air delivery by raised

floor mounted CRAH units and liquid cooling systems. Chiller Plant

! 2- 600 ton chillers/towers/pumps, pre-piped in modular containers. Variable primary flow. All motors premium eff. & VFD, chillers VFD. Complete digital control system & programming. Fire detection & suppression. (assumes there is at least 600 kW load, day one)

! 2- 10,000 gallon horizontal aboveground chilled water storage tanks.

! Aboveground headers with double supply & return piping loops underground to building. All Tier 3.

! Fire water system from building to plant with detection & alarm. ! Make-up water system with chem. treatment.

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Page 2 of 5 5K3-UU001 Enterprise Core (Tier 3) 5,000 SF

! 9- 50 nominal ton CRAH units (N+20%). 30” RAF. No ceiling. ! Tier 3 piping distribution.

! VESDA ! FM200

! Pre-action sprinklers. HPC (Tier 1) 5,000 SF

! 8- 50 nominal ton CRAH units (N). Assumes 250 tons conventional cooling. 48” RAF. Provide drop ceiling with hot aisle containment back to CRAH units.

! 12- 25 kW liquid cooled cabinets, 2- CDUs, specialized piping. Assumes 80 tons liquid cooling. ! Tier 1 piping distribution.

! VESDA ! FM200

! Pre-action sprinklers.

IT infrastructure support rooms (Tier 3) 7,500 SF ! 8- 20 nominal ton CRAH units.

! Tier 3 piping distribution. ! VESDA

! FM200

! Pre-action sprinklers. Common areas 7,500 SF

! 2- chilled water RTUs with economizer. ! VAV system + ductwork.

! Data Center waste heat recovery AHU + duct system. ! Wet sprinklers

Cooling option 2: Conventional chilled water system with waterside economizers. Air delivery by

raised floor mounted CRAH units and liquid cooling systems. Reduces chiller plant operation by 30%. Same as Option 1 except chiller modules have waterside economizers & necessary piping.

Cooling Option 3: Conventional chilled water system. Air delivery by rooftop AHUs with outdoor air

economizers. Reduces chiller plant operation by 60%. Chiller Plant

! Fire water system from building to plant with detection & alarm. ! Make-up water system with chem. treatment.

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EYP Mission Critical Facilities®_{, Inc., 200 West Adams Street, Suite 2750, Chicago, IL 60606 (312) 846-8500}_{www.hp.com/go/eypmcf}

Enterprise Core (Tier 3) 5,000 SF

! 3- 150 ton rooftop AHUs (N+1) with chilled water coils and O/A economizers. No RAF. Provide drop ceiling and hot aisle containment.

! Make-up water system with chem. treatment.

! Supply distribution header duct with branches to cold aisles. ! Tier 3 piping distribution to roof.

! VESDA ! FM200

! 2- 150 ton rooftop AHUs (N) with chilled water coils and O/A economizers. Assumes 250 tons conventional cooling. No RAF. Provide drop ceiling with hot aisle containment back to rooftop units.

! Supply distribution header duct with branches to cold aisles. Join to E-Core header. ! Tier 1 piping distribution on roof.

! VESDA ! FM200

IT infrastructure support rooms (Tier 3) 7,500 SF ! Duct distribution from rooftop units. ! VESDA

! FM200

Cooling Option 4: Conventional chilled water system. Air delivery by rooftop AHUs with evaporative

cooling systems. Reduces chiller plant operation by 90%. Chiller Plant

! Fire water system from building to plant with detection & alarm.

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Page 4 of 5 5K3-UU001 Enterprise Core (Tier 3) 5,000 SF

! 3- 150 ton rooftop AHUs (N+1) with chilled water coils and evaporative cooling system. No RAF. Provide drop ceiling and hot aisle containment.

! Supply distribution header duct with branches to cold aisles. ! Tier 3 piping distribution to roof.

! VESDA ! FM200

! 2- 150 ton rooftop AHUs (N) with chilled water coils and evaporative cooling system. Assumes 250 tons conventional cooling. No RAF. Provide drop ceiling with hot aisle containment back to rooftop units.

! Supply distribution header duct with branches to cold aisles. Join to E-Core header. ! Tier 1 piping distribution on roof.

! VESDA ! FM200

IT infrastructure support rooms (Tier 3) 7,500 SF ! Duct distribution from rooftop units. ! VESDA

! FM200

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EYP Mission Critical Facilities®_{, Inc., 200 West Adams Street, Suite 2750, Chicago, IL 60606 (312) 846-8500}_{www.hp.com/go/eypmcf}

Cooling Options Cost Comparison

Cooling

Option System Description Initial Purchase Cost Total Load PUE

Annual Operating Cost ($0.10/kWh) Return on Investment (compared to Option 1) 1 Conventional chilled water system without economizers. Air delivery by raised floor mounted CRAH units and liquid cooling systems.

$8,382,500 3,318 kW 1.75 $2,906,570 N/A

2

Conventional chilled water system with waterside

economizers. Air delivery by raised floor mounted CRAH units and liquid cooling systems $8,638,250 3,122 kW 1.64 $2,734,870 18 months 3 Conventional chilled water system. Air delivery by rooftop AHUs with outdoor air economizers $10,325,000 3,089 kW 1.63 $2,705,960 _{8 months}9 years 4 Conventional chilled water system. Air delivery by rooftop AHUs with evaporative cooling systems.

$11,225,000 2,661 kW 1.4 $2,331,040 5 years

PUE and Costs are ROM estimates (±30%) based on the proposed systems and are for reference / comparative purposes only. Detailed analysis would be required to discover actual PUE and costs.

Note that due to the Tier 3 requirement for the Enterprise Core area, the chiller plant is retained at full size regardless of the outdoor air economizer and evaporative cooling systems. A system with a smaller chilled water plant would be less sustainable but would save considerable initial cost.