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PP-00089 B
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
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