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Why Cool Electronics?The problem of heat, the benefits of cooling

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Heat Stresses Electronics Sources of Damaging Heat Effects of Damaging Heat The Benefits of Cooling Cooling Solutions McLean Cooling Solutions

Key Concepts

Why Cool Electronics?The problem of heat, the benefits of cooling

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Heat Stresses Electronics

• Faster, more powerful devices produce more heat

• Higher density of electronic devices used in control applications

• Devices not hardened to environmental extremes

• Relationship between high performance & temperatures & reliability

• Customers seek ‘insurance’ solutions to protect from costly shutdowns.

advancing technology

increased awareness of temperature vs. reliability

ThermalProduct MarketDrivers

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Heat Stresses Electronics

Every 10°C / 18°F rise over room temperature cuts electronic life expectancy in half

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Sources of Damaging Heat

Heat can come from sources inside the cabinet . . .

Indoor Industrial, Telecom & Data Networking

AC power supply Controllers (PLCs) Drives & servos Transformers

Radio equipment Battery back-up Server racks

Processors Inverters Contactors &

relays

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Sources of Damaging Heat

. . . outside the cabinet . . .

Indoor Industrial & Telecom

Welding process Paint oven

Solar heat gain Blast furnace Foundry

equipment

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Sources of Damaging Heat

. . . from the electronics themselves . . .

More electronics going into same size or smaller enclosures

Datacom, telecom demanding higher performance

More server functionsmean more heat

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Sources of Damaging Heat

“Semiconductor transistor density and performance

double every 18-24 months.”Moore’s Law

Named for Intel founder,Dr Gordon Moore

. . . as performance increases . . .

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Sources of Damaging Heat

. . . and from the surrounding environment

Global economic growthis sparking installationsin warmer climates

Burj Al Arab Hotel

Dubai, United Arab Emirates

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Effects of Damaging Heat

At extreme temperatures . . .

Catastrophic failures Properties of silicone materials

change Drive performance is de-rated I/C based devices may experience

intermittent fluctuations in output and voltage migration

Mean Time Between Failure (MTBF) decreases exponentially

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Effects of Damaging Heat

What does it cost to shut down an automotive assembly line for 1 hour?

Over $500,000Over $500,000

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Effects of Damaging Heat

Consider the costs associated with the following . . .

Productivity losses of plant/line shutdowns Labor Scrap Opportunity cost

Component costs In warranty – processing costs, labor Out of warranty – out of pocket costs

Material & Labor

Customer satisfaction costs Missed ship dates

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The Benefits of Cooling

Cooling is essential to protect electronics &maintain performance

Extend operational life Instill smooth performance Maintain valuable

equipment warranties Prevent catastrophic failure Maintain productivity

Cooling electronics can:

Fans cooling server

power supply unit

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Cooling Solutions

The good news: cooling options are readily available

Basic Cooling Options:

Air Conditioners Heat Exchangers Thermoelectric Coolers Air Movers

—Fans/Blowers/Impellers

Specialized Cooling Options:

Water-Cooled Air Conditioners Vortex Compressed Air Coolers

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Cooling Solutions

Low Mod HighCools Below

AmbientClosed-Loop*

Controls Condensation

PriceOther

Considerations

Air Conditioners √ √ √ √ √ √ High

Water-cooled solutions availble for harsh

environments - requires a chilled water source.

Thermelectric Coolers √ √ √ Moderate

Heat Exchangers √ √ √ Moderate

Fans & Blowers √ √ Low

Vortex Coolers √ √ √ √ √ Moderate

Use when A/C or thermoelectric cooler

won't meet space requirements - requires compressed air source.

*Closed Loop: Utllizes internal cabinet air to cool. Does not utilize ambient outside air to enter the cabinet (open loop).

Heat Removal

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Cooling Solutions

Let our online selection tool help you find the right solution!

1. Go to www.McLeanCoolingTech.com or

www.hoffmanonline.com

2. Provide inputs regarding: Environment Enclosure Equipment

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McLean Cooling Solutions

McLean offers reliable cooling solutions that are:

Effective & economical Expertly engineered Customized to your needs Supported globally

Certified on-site service Fast replacement parts

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Key Concepts

In summary . . .

Heat damages electronics Cooling extends performance and operational life McLean offers reliable cooling solutions