Essays about: "Free cooling"

Showing result 21 - 25 of 59 essays containing the words Free cooling.

1. 21. Performance Evaluation of Ground Heating and Cooling Systems - Long-term performance measurements of two case buildings

   University essay from Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

   Author : Hao Liu; Hongyi Zhang; [2020]
   Keywords : Ground source heat pump GSHP ; System performance; Long-term monitoring; Geothermal; Borehole heat exchangers; Office building; Uncertainty analysis; Deep Green Cooling; Free cooling; Heating; Cooling; Technology and Engineering;

   Abstract : Geothermal energy is one of the oldest and most sustainable energy sources and has been used for thousands of years. The temperature of the ground at shallow depth is fairly constant, above the air temperature in winter and lower than the ambient temperature in summer. READ MORE

3. 22. Thermal induced yellowing of peroxide bleached birch pulp

   University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

   Author : Alexander Nygren; [2020]
   Keywords : Accelerated ageing; Bleaching; Brightness reversion; Kraft pulp; pH; Yellowing;

   Abstract : Brightness reversion, also known as yellowing, is a well-known phenomenon which means that the brightness of paper products decreases during ageing. The name of this phenomenon is based on that paper products usually change in color towards yellow during ageing. READ MORE

4. 23. Modelling of organic data centers

   University essay from KTH/Kemiteknik

   Author : Mimmi Sandström; [2020]
   Keywords : organic data center; waste heat recovery; free cooling; next generation data center; greenhouse; ekologisk datorhall; återvinning av spillvärme; fri kyla; nästa generation datorhall; växthus;

   Abstract : I det här examensarbetet undersöks möjligheten att återvinna termisk energi genom att driva en så kallad ekologisk datorhall. Denna uppstår genom en integration mellan en storskalig högpresterande datorhall och ett växthus. READ MORE

5. 24. Cooling storage for 5G EDGE data center

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Jennifer Johansson; [2020]
   Keywords : Energy; Data center; Free cooling; 5G;

   Abstract : Data centers requires a lot of energy due to that data centers count as the buildings also contains servers, cooling equipment, IT-equipment and power equipment. As the cooling solution for many data centers around the world right now, the compressor-based cooling solution counts for around 40% of the total energy consumption. READ MORE

6. 25. Modelling of a Generic Aircraft Environmental Control System in Modelica

   University essay from Linköpings universitet/Fluida och mekatroniska system

   Author : Sabin Poudel; [2019]
   Keywords : ECS; Environmental Control System; Modelica; Object oriented Modeling; TTECCS library; bootstrap system;

   Abstract : This thesis documents the modelling of generic Environmental Control System(ECS) of an aircraft in Modelica by utilizing components from free version of theTTECCS (Technical Thermodynamic Environmental Control and Cooling Systems) library. In doing so, components used for developing ECS from the TTECCS library are mathematically verified with theoretical formula in MATLAB. READ MORE