2009-dec02_APC

All content in this presentation is protected – © 2008 American Power Conversion Corporation

Eduard BodorSystem Engineer APC Romania & Bulgaria

The Efficient Enterprise

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

AGENDA

● Introduction and some new regulations●Some basics●DCiE●Optimizing

●Hardware●UPS●Cooling

●Summary


European Commision code

● http://re.jrc.ec.europa.eu/energyefficiency/


Basic requirements for IT-equipment

● Power Supply „CBEMA“-Curve

● Air Conditioning20 - 26 °C20 - 80% rF

● AvailabilityTier 1 to 4


Energy Costs, Trend: rising● 0,12 € per kWh is an average value for electrical power

costs in Europe● Based on that price the annual cost of power supplied to

1 kW of IT-equipment is around 1.000,- €.(365 x 24h = 8760h x 0,12 Kr = 1.051,20 €)

● The Network Critical Physical Infrastructure needs around the same amount of power ! => 1.000 € per kW per year

● During the typical 10-year-Lifetime of a datacenter every 1 kW of IT-load cost around 20.000,- € !

and

1kWh = 600g CO2 !


Where does Hardware inefficiency go?

.001%

99.9997% of WATTS INbecomes heat

.0003% of WATTS INbecomes computation

SiliconBusiness

Apps

99.999%

.001%

Inefficiency (waste)

Useful Work

Computing Hardware

60%

40%

60%50%

Physical Layer

50%

50%IN


Data Center Infrastructure Efficiency

DCiE = Watts delivered to IT load

Watts IN to data center

This definition follows the US Environmental Protection Agency ENERGY STAR Program.Detailed information can be found in APC-MGE Whitepaper 157

This ratio gives a value between 0 and 1 and is normally expressed in %

=> Higher value = higher efficiency


Optimising the IT

●Remove all old or unused hardware ●Use modern IT-equipment with high efficiency power

supplies (90%+) and intelligent power management●Virtualization for efficient loading of IT-equipment

(increase from 15% to 80% load) ●Don‘t forget the peripherals and desk-tops („Stand-by“)


Rightsizing !

2(N+1) powerN+1 cooling


Save Energy with State-of-the-Art UPS systems

size with minimal oversizing, „hot-add“ power if needed very high efficiency, even at low load and in redundant configuration,

Values for 100% load are not sufficient for E.eff. installations


Sample: Saving by right sizing

Given: 1 MW of IT powerIncrease efficiency factor of UPS

from 0.92 to 0.96 saves 58.856,- €/a

or294 tons CO2/a


IDC Research

● “Through it’s research IDC has found that an increasing number of datacenters are close to reaching their power and cooling thresholds, or are anticipating doing so in the near future.”

● “This in turn is constraining IT’s ability to expand to keep pace with business requirements, as well as increasing the risk of failures associated with hotspots in the datacenter.”

● “IDC believes datacenter operators will require enhanced tools to optimize energy efficiency and to maximize capacity within their environments.”

● “The cost to power and cool the installed base of servers is increasing a growth rate that is four times the growth rate of new server spending.”

●Surce: September 19, 2008


Optimising the Datacenter cooling●rising the acceptable air-inlet-temperature of the

IT-equipment to 20 -26°C leads to higher efficiency●higher the chilled water temperature (e.g. 12°C instead

of 6°C) means that the compressor needs less power ●use of chilled water allows the „indirect free cooling“

(Eco-Mode) which is even more efficient with higher chilled water temp and higher air inlet temps

●avoid dehumidifying by higher heat exchanger temps saves the additional humidifying energy

Savings:

~ 4% per °C

10-15%

~ 33%

3-5%


Gartner Rerearch

●The most important result - Containment hot or cold aisles can reduce data center energy costs by 30%.

● “For any data center that is under pressure to cut costs or that just wants to improve energy efficiency, containment can provide a method for substantially reducing energy costs associated with cooling and can extend the capacity of cooling plants.”

● “Hot-aisle containment is well-suited for new data center construction or for extensive data center renovation projects.”

● “Hot-aisle containment is typically implemented using specialized racks with in-row cooling (such as the APC InfraStruXure system), or by establishing other types of barriers to contain the exhaust air in the hot aisles”

● Source Gartner Research Publication Date: 17 October 2008


Hot Air Containment Systems !High density and high efficiency

over 30 kW of cooling per rack possible


Cooling/Power savings by Fan LawsOperating Point A:

RPM = 250

Static pressure (SP) = 1,2 bar

Power consumption (P) = 35Watt

What happens if we change the air flow demand to be tripled?

Air Flow related directly to RPM:=> RPM triples = 750

SP varies as the square of RPM:=> SP = 10,8 bar(Not important for our discussion)

Power consuption raises by power of 3:=> Power consumtion = 900 Watt

Operating Point B:

RPM = 750

Static pressure = 10,8 bar

Power consumption = 945WattSP (new) RPM (new)SP (old) RPM (old)

=( )2

P (new) RPM (new)P (old) RPM (old)

= ( )3

AirFlow (new) RPM (new)AirFlow (old) RPM (old)

=


●APC White Paper Nr. 113 „Electrical Efficiency Modeling of Data Centers”

●APC White Paper Nr. 114 „ Implementing Energy Efficient Data Centers”

●APC White Paper Nr. 157“Metric for DC Efficiency”

●many more White Papers focusing on all aspects of IT-Infrastructure

Improvements


05

1015202530354045

IT Power Cooling

LegacyState-of-the Art

Conclusion: up to 40% overall savings possible !

All content in this presentation is protected – © 2008 American Power Conversion Corporation

Thank you very much for your interest and attention !

reference installation at Frankfurt Airport, Germany

http://www.fraport.de/cms/default/rubrik/1/1961.fraport_de.htm�

2009-dec02_APC

Technology

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