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Using CT Scan in the IndustryWhat does CT scanning have to do with cooling systems for Telecom? – working with Danish Technological Institute.

Pia Grandelag Marketing and Sustainability Manager Dantherm Cooling Holding A/S

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SPECIFIC FOCUS ON CT AND THERMOSIPHON

Do the cooling coils we source live up to our specifications?

How do we ensure specified quality when soldering?

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Dantherm specialty: Energy-efficient climate control solutions for shelters and cabinets

In both types of telecom sites thermosiphons are relevant as method of thermal management in the site. This presentations focuses specifically on CT Scanning in relation to the thermosiphon

SHELTER CLIMATE CONTROL

CABINET CLIMATE CONTROL

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A thermosiphon is a passive cooling system consisting of:

1. An evaporator coil2. A condenser coil3. An airflow through the evaporator (via fan)4. An airflow through the condenser (via fan)5. Piping and soldering6. Gravity

What does a thermosiphon consist of?

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How does it work…https://www.youtube.com/watch?v=-VgqS9Ky0tM

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The coil consists of:1. 2 headers2. MPE-pipes3. Zipper fins between

the MPE-pipes4. Louver fins, stamped out

in the zipper fins

Evaporator / condenser coils

HeaderMPE pipes

Zipper fins

Zipper fins

Louver fins

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Do the cooling coils we source live up to our specifications?

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To answer this, we used microscopy (and grind /cut)

Microscopy is a well-known and reliable method, but relatively expensive and time consuming

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Our first scan was a section of a coil

After intro to the AM cluster of Teknologisk Institut in Denmark, we participated in the first meeting for CT scans

Our first assumptions were incorrect: the zipper fin angles were correct, but the scan showed an issue the header material. This was a corrective result, which we could not have achieved via the first method.

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How do we ensure specified quality when soldering?

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Like this? … well no…

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Sample taking

6 different soldering methods

Like this:

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Scan of all 30 samples

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Aluminum soldering

© Dantherm A/STitle of presentation DD/MM/YY Author Confidentiality level

Presentation of the results

© Dantherm A/STitle of presentation DD/MM/YY Author Confidentiality level

APPROVED REJECTED

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Microscopy comparison

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Sample 2

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Sample 4

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Analysis of the entire sampleScan is quickly performed Fast result presentation and thereby fast reaction of corrective actions towards unwanted performance.Visual result, easy to communicate Cost-efficient.

Analysis of cut area onlyDestructive Time consumingLong reaction time and long waiting time to be able to make corrective actions

CT Scan

Microscopy analysis

Evaluating CT Scan vs microscopy analyses

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Dantherm: leading provider of mission-critical climate control solutions

Founded in 1958 in Denmark

Two main business areas:

Telecom (total heat management for radio base stations and electronics cooling)HVAC (heating, ventilation, air conditioning)

Listed on NASDAQ OMX Copenhagen

Companies in China, USA, UK, Germany, Poland, Sweden, Norway and Denmark

Dantherm facts:

www.dantherm.com

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Reliable cooling – reliable communication worldwide

In a world increasingly dependent on wireless and broadband communication, we ensure that radios, electronics and backup systems are working under all climate conditions and circumstances.

900,000 energy-efficient climate control products deployed worldwide to network suppliers and network operators

What we do… Select Telecom references

▶ INTRO ▶ DANTHERM COOLING

▶ PRODUCTS ▶ VALUE ADDING SOLUTIONS

▶ COMPANY DETAILS

▶ YOUR BENEFITS

PERSPECTIVE R&D ENERGY EFFICIENCY RANKING WHY WORK WITH DANTHERM CASE STUDIES

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World leader in energy-efficient climate control solutions for Telecom

Customer Segments:Network SuppliersNetwork OperatorsElectronics Cooling (Industry & ICT)

We offer a global one-stop-shop for:

Shelter solutionsTotal shelter climate controlBattery compartment coolingEmergency cooling

Cabinet solutionsBattery compartment coolingElectronics cooling

▶ INTRO ▶ DANTHERM COOLING

▶ PRODUCTS ▶ VALUE ADDING SOLUTIONS

▶ COMPANY DETAILS

▶ YOUR BENEFITS

PERSPECTIVE R&D ENERGY EFFICIENCY RANKING WHY WORK WITH DANTHERM CASE STUDIES

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Telecom- three regional head quarters

EMEA APACAMERICASSpartanburg, SC, USAR&D, manufacturingSales & customer supportRepresentation in Mexico

Skive, DenmarkR&D, manufacturingSales & customer supportSubsidiary companies: Sweden, Norway, Germany and UK.Representation in Russia & France

Suzhou, ChinaR&D, manufacturingSales & customer supportBranch office: Beijing

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Contact Dantherm for more info at info@dantherm.com

Learn more about us at www.dantherm.com