Optimization of row-and-rack level airflow management in data centers
Xiaolei Yuan (2022)
This thesis firstly conducts a literature review about the cooling system and data centers (DCs). Considering the current huge market share of air-side cooling and its high cooling reliability and normalized model matching design compared with liquidside cooling, this thesis proposes row-and-rack level airflow management is worth further studying. Then, 4 different row-and-rack level methods are proposed and studied to optimize the thermal environment through experimental & numerical studies and model validation.
Ground Source Heat Pumps (GSHP) and Underground Thermal Energy Storage (UTES) – Key Vectors to a Future Energy Transition
Oleg Todorov (2022)
This dissertation analyses in the first place the integration of GSHP and aquifer thermal energy storage (ATES) in both district heating and cooling networks, in terms of technoeconomic feasibility, efficiency, and impact on the aquifer. A holistic integration and a mathematical modeling of GSHP operation and energy system management are proposed and demonstrated throughout two case studies in Finland. Hydrogeological and geographic data from different Finnish data sources are retrieved for calibrating and validating the groundwater models, used to simulate the long-term impact of
GSHP-ATES operation.
Xiaolei Yuan (2022)
This thesis firstly conducts a literature review about the cooling system and data centers (DCs). Considering the current huge market share of air-side cooling and its high cooling reliability and normalized model matching design compared with liquidside cooling, this thesis proposes row-and-rack level airflow management is worth further studying. Then, 4 different row-and-rack level methods are proposed and studied to optimize the thermal environment through experimental & numerical studies and model validation.
Ground Source Heat Pumps (GSHP) and Underground Thermal Energy Storage (UTES) – Key Vectors to a Future Energy Transition
Oleg Todorov (2022)
This dissertation analyses in the first place the integration of GSHP and aquifer thermal energy storage (ATES) in both district heating and cooling networks, in terms of technoeconomic feasibility, efficiency, and impact on the aquifer. A holistic integration and a mathematical modeling of GSHP operation and energy system management are proposed and demonstrated throughout two case studies in Finland. Hydrogeological and geographic data from different Finnish data sources are retrieved for calibrating and validating the groundwater models, used to simulate the long-term impact of
GSHP-ATES operation.