On Economic Cooling of Contained Server Racks using an Indirect Adiabatic Air Handler

We study the economic operation of a free-cooling setup in which an Indirect Adiabatic Air Handler (IAAH) recovers heat from an array of server racks placed in a contained aisle. For this setting we propose two different control policies: in the first approach, the airflow supply rate to the racks i...

Full description

Saved in:
Bibliographic Details
Published in2020 36th Semiconductor Thermal Measurement, Modeling & Management Symposium (SEMI-THERM) pp. 24 - 31
Main Authors Lucchese, Riccardo, Lionello, Michele, Rampazzo, Mirco, Johansson, Andreas, Birk, Wolfgang
Format Conference Proceeding
LanguageEnglish
Published STEF 01.03.2020
Subjects
Adiabatic
Atmospheric modeling
Computational modeling
Cooling
Data center thermal models
Energy efficient cooling
Heat recovery
Indirect adiabatic cooling
Server thermal models
Servers
Online AccessGet full text

Cover

More Information
Summary:We study the economic operation of a free-cooling setup in which an Indirect Adiabatic Air Handler (IAAH) recovers heat from an array of server racks placed in a contained aisle. For this setting we propose two different control policies: in the first approach, the airflow supply rate to the racks is maintained constant while only the process- side operations of the IAAH are optimized. In the second approach, also the room-side rate is updated adaptively. Building on calibrated models of the IAAH and the servers, we design experimental trials considering different outdoor temperatures and humidity conditions as well as varying computational workloads. The in silico analysis contributes actionable insights on the optimal thermal and cost operations of the system.
DOI:10.23919/SEMI-THERM50369.2020.9142828