a hybrid cooling system for telecommunicatioin base stations
TRANSCRIPT
![Page 1: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/1.jpg)
Powering the Software Defined Network
A Hybrid Cooling System for Telecommunication Base Stations
Ehsan B. [email protected]
Thermal Designer
![Page 2: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/2.jpg)
– 2 –
Contents
• Introduction• Different Closed Systems• Hybrid System• Energy and Controlling Model• Case Studies and Results• Conclusion
![Page 3: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/3.jpg)
– 3 –
![Page 4: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/4.jpg)
– 4 –
![Page 5: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/5.jpg)
– 5 –
![Page 6: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/6.jpg)
– 6 –
Introduction
• Cooling traditionally counted for 25-50% of the total energy consumption in a typical base station.
![Page 7: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/7.jpg)
– 7 –
![Page 8: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/8.jpg)
– 8 –
Vapour Compression System
![Page 9: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/9.jpg)
– 9 –
Thermosiphon system
![Page 10: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/10.jpg)
– 10 –
Pump-driven Loop System
![Page 11: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/11.jpg)
– 11 –
Hybrid System
![Page 12: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/12.jpg)
– 12 –
Previous Studies
Air Conditioning
Thermosiphon
![Page 13: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/13.jpg)
– 13 –
Energy Model
INFSOLENVITCOOL QQQQQ
![Page 14: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/14.jpg)
– 14 –
Controlling Model
If ΔT ≤ 5 °C=> ACIf 5 °C < ΔT ≤ ΔTTS => DUIf ΔT > ΔTTS => TS
![Page 15: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/15.jpg)
– 15 –
Controlling Model
![Page 16: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/16.jpg)
– 16 –
Case Studies• A typical BTS with L=4 m, W=3 m, and H=2.8 m• QIT = 4.4 kW (on average)• UEnv = 1 W/m2K• Copenhagen (Denmark), San Francisco (USA), Shanghai (China) and
Dubai (UAE)• Weather data: ASHRAE handbook
![Page 17: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/17.jpg)
– 17 –
Copenhagen, Denmark
![Page 18: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/18.jpg)
– 18 –
Copenhagen, Denmark (month June)
![Page 19: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/19.jpg)
– 19 –
San Francisco, USA
![Page 20: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/20.jpg)
– 20 –
Shanghai, China
![Page 21: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/21.jpg)
– 21 –
Dubai, UAE
![Page 22: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/22.jpg)
– 22 –
Copenhagen, Denmark
![Page 23: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/23.jpg)
– 23 –
San Francisco, USA
![Page 24: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/24.jpg)
– 24 –
Shanghai, China
![Page 25: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/25.jpg)
– 25 –
Dubai, UAE
![Page 26: A Hybrid Cooling System for Telecommunicatioin Base Stations](https://reader036.vdocuments.net/reader036/viewer/2022062522/5883608d1a28ab536b8b45bf/html5/thumbnails/26.jpg)
– 26 –
Conclusion• A hybrid cooling system including an air conditioner
and a thermosiphon with individual loops is suggested to reduce total energy consumption for a typical BTS
• This system can be operated in three modes: air conditioning, thermosiphon, and dual
• The potential of saving energy is remarkable and by increasing the set point temperature the share of air conditioning mode is reduced while the share of thermosiphon is increased