The document discusses Dantherm A/S's application of CT scanning technology to ensure the quality of cooling systems, specifically thermosiphons, for telecom climate control. It highlights the advantages of CT scanning over traditional microscopy methods for analyzing cooling coils and soldering quality, enabling quicker corrective actions. Dantherm, a leader in energy-efficient climate control solutions since 1958, aims to maintain reliable communication systems under various climate conditions.

1. © Dantherm A/S
Using CT Scan in the Industry
What 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

2. © Dantherm A/S
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?

3. © Dantherm A/S
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

4. © Dantherm A/S
A thermosiphon is a passive cooling system
consisting of:
1. An evaporator coil
2. A condenser coil
3. An airflow through the evaporator (via fan)
4. An airflow through the condenser (via fan)
5. Piping and soldering
6. Gravity 
What does a thermosiphon consist of?

5. © Dantherm A/S 5

6. © Dantherm A/S
The coil consists of:
1. 2 headers
2. MPE-pipes
3. Zipper fins between
the MPE-pipes
4. Louver fins, stamped out
in the zipper fins
Evaporator / condenser coils
Header
MPE pipes
Zipper
fins
Zipper
fins
Louver
fins

7. © Dantherm A/S
Do the cooling coils we source live up
to our specifications?

8. © Dantherm A/S
To answer this, we used microscopy
(and grind /cut)
Microscopy is a well-known and
reliable method, but relatively
expensive and time consuming

9. © Dantherm A/S
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.

10. © Dantherm A/S
How do we ensure specified quality
when soldering?

11. © Dantherm A/S
Like this? … well no…

12. © Dantherm A/S
Sample taking
6 different soldering
methods
Like this:

13. © Dantherm A/S
Scan of all 30 samples

14. © Dantherm A/S

15. © Dantherm A/S
Aluminum soldering

16. © Dantherm A/STitle of presentation DD/MM/YY Author Confidentiality level
Presentation of the results

17. © Dantherm A/STitle of presentation DD/MM/YY Author Confidentiality level
APPROVED REJECTED

18. © Dantherm A/STitle of presentation DD/MM/YY Author Confidentiality level
Microscopy comparison

19. © Dantherm A/S
Sample 2

20. © Dantherm A/S
Sample 4

21. © Dantherm A/S
Analysis of the entire sample
Scan 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 only
Destructive
Time consuming
Long reaction time and long
waiting time to be able to
make corrective actions
CT Scan
Microscopy analysis
Evaluating
CT Scan vs microscopy analyses

22. © Dantherm A/S
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

23. © Dantherm A/S
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

24. © Dantherm A/S
World leader in energy-efficient
climate control solutions for Telecom
Customer Segments:
Network Suppliers
Network Operators
Electronics Cooling (Industry & ICT)
We offer a global one-stop-shop for:
Shelter solutions
Total shelter climate control
Battery compartment cooling
Emergency cooling
Cabinet solutions
Battery compartment cooling
Electronics cooling
▶ INTRO ▶ DANTHERM
COOLING
▶ PRODUCTS ▶ VALUE ADDING
SOLUTIONS
▶ COMPANY
DETAILS
▶ YOUR
BENEFITS
PERSPECTIVE R&D ENERGY EFFICIENCY RANKING WHY WORK WITH DANTHERM CASE STUDIES

25. © Dantherm A/S
Telecom
- three regional head quarters
EMEA APACAMERICAS
Spartanburg, SC, USA
R&D, manufacturing
Sales & customer support
Representation in Mexico
Skive, Denmark
R&D, manufacturing
Sales & customer support
Subsidiary companies: Sweden,
Norway, Germany and UK.
Representation in Russia & France
Suzhou, China
R&D, manufacturing
Sales & customer support
Branch office: Beijing

26. © Dantherm A/S
Contact Dantherm for more info
at info@dantherm.com
Learn more about us at www.dantherm.com