Download Why Cool Electronics? - Barr

Why Cool Electronics?
The problem of heat, the benefits of cooling
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Key Concepts
Why Cool Electronics?
The problem of heat, the benefits of cooling
 Heat Stresses Electronics
 Sources of Damaging Heat
 Effects of Damaging Heat
 The Benefits of Cooling
 Cooling Solutions
 McLean Cooling Solutions
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Heat Stresses Electronics
• Faster, more powerful devices
produce more heat
Thermal
Product
Market
Drivers
advancing technology
• Higher density of electronic
devices used in control
applications
• Devices not hardened to
environmental extremes
increased awareness of
temperature vs. reliability
• Relationship between high
performance & temperatures &
reliability
• Customers seek ‘insurance’
solutions to protect from costly
shutdowns.
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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
 Processors
 Radio equipment
 Controllers (PLCs)  Inverters
 Battery back-up
 Drives & servos
 Server racks
 Transformers
 Contactors &
relays
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Sources of Damaging Heat
. . . outside the cabinet . . .
Indoor Industrial & Telecom
 Welding process
 Blast furnace
 Paint oven
 Foundry
 Solar heat gain
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 functions
mean more heat
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Sources of Damaging Heat
. . . as performance increases . . .
“Semiconductor transistor
density and performance
double every 18-24 months.”
Moore’s Law
Named for Intel founder,
Dr Gordon Moore
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Sources of Damaging Heat
. . . and from the surrounding environment
 Global economic growth
is sparking installations
in 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 $500,000
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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
Cooling electronics can:
 Extend operational life
 Instill smooth performance
 Maintain valuable
equipment warranties
 Prevent catastrophic failure
 Maintain productivity
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
Heat Removal
Low
Mod
High
Cools Below
Ambient
Closed-Loop*
Controls
Condensation
Price
Other
Considerations
Air Conditioners
√
√
√
√
√
√
High
Water-cooled solutions
availble for harsh
environments - requires
a chilled water source.
Thermelectric
Coolers
√
√
√
Moderate
Heat Exchangers
√
√
√
Moderate
Fans & Blowers
√
√
Vortex Coolers
√
√
Low
√
√
√
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).
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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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