Dataset for Field Validation of KPI-Informed Energy Efficiency Improvements in Two Small Data Centers

This dataset was prepared for the “Field Validation of KPI-Informed Energy Efficiency Improvements in Two Small Data Centers” paper.

Mustafa Kuzay a, Ender Demirel a, Simon Pommerencke Melgaard b, Thomas Juul b, Jesper Ellerbæk Nielsen b, Wojciech Szeliga c, Ariel Oleksiak c

a Design and Simulation Tech. Inc., 26480 Eskisehir, Turkiye

b Aalborg University, Department of the Built Environment, Thomas Manns Vej 23, 9220 Aalborg East, Denmark

c Poznan Supercomputing and Networking Center, Al. Jana Pawla II 10, Poznan, Poland

AAU Dataset Description

The “AAU.tar.xz” archive contains the time series measurement data and calculated thermal and energy KPIs obtained from the experimental tests conducted at the Aalborg University (AAU) pilot site. The experiments were carried out for four different configurations and four IT load levels, resulting in a total of 16 dataset files.

The investigated configurations are:

• Baseline: original configuration before retrofit actions

• Plate: filler plates applied to inactive server positions

• Wall: separating wall applied to improve airflow separation

• Plate + Wall: combined use of filler plates and the separating wall

Each configuration was tested at 25%, 50%, 75%, and 100% IT load. The archive contains the following csv files:

• Baseline: BaselineTest_25percent, BaselineTest_50percent, BaselineTest_75percent, BaselineTest_100percent

• Plate: PlateTest_25percent, PlateTest_50percent, PlateTest_75percent, PlateTest_100percent

• Wall: WallTest_25percent, WallTest_50percent, WallTest_75percent, WallTest_100percent

• Plate + Wall: PlateWallTest_25percent, PlateWallTest_50percent, PlateWallTest_75percent, PlateWallTest_100percent

All files have the same data structure and contain the following columns:

The file names indicate both the tested retrofit configuration and the corresponding IT load level. This structure allows direct comparison of thermal and energy performance between the baseline and retrofit configurations under equivalent IT load conditions. 

PSNC Dataset Description

The “PSNC.tar.xz” archive contains the time series measurement data and calculated thermal KPIs obtained from the experimental campaign conducted at the Poznan Supercomputing and Networking Center (PSNC) pilot site.

The archive contains one dataset file (PSNC_Dataset.csv). This file represents the monitored PSNC configuration used for the field validation study and includes the main temperature measurements together with the thermal KPIs used to assess airflow and cooling performance. Since power measurements were not available for the PSNC pilot, power-related KPIs are not included. The dataset otherwise contains the same temperature related data and thermal KPIs as the AAU dataset. This dataset can be used to analyze inlet and outlet temperature behavior, cooling supply and return conditions, and the effects of recirculation, leakage, and airflow distribution during the experimental measurement period.