Sökning: "Hongyi Zhang"

Hittade 2 uppsatser innehållade orden Hongyi Zhang.

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

   Master-uppsats, Lunds universitet/Avdelningen för Energi och byggnadsdesign; Lunds universitet/Institutionen för arkitektur och byggd miljö

   Författare :Hao Liu; Hongyi Zhang; [2020]
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER

3. 2. Efficient learning on high-dimensional operational data

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Hongyi Zhang; [2019]
   Nyckelord :Data-driven engineering; Machine learning; Dimensionality reduction; Data-driven teknik; Maskininlärning; Dimensionalitet minskning;

   Sammanfattning : In a networked system, operational data collected by sensors or extracted from system logs can be used for target performance prediction, anomaly detection, etc. However, the number of metrics collected from a networked system is very large and usually can reach about 106 for a medium-sized system. LÄS MER