Blar i NTNU Open på forfatter "Ding, Yiyu"
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Analysis of electricity use and economic impacts for buildings with electric heating under lockdown conditions: examples for educational buildings and residential buildings in Norway
Ding, Yiyu; Ivanko, Dmytro; Cao, Guangyu; Brattebø, Helge; Nord, Natasa (Peer reviewed; Journal article, 2021)The COVID-19 pandemic has caused significant impacts on energy demand in Norway and many countries. It is important to improve the existing knowledge of building operation under unforeseeable disturbances. This study aimed ... -
Analysis of heat use profiles in Norwegian educational institutions in conditions of COVID-lockdown
Ivanko, Dmytro; Ding, Yiyu; Nord, Natasa (Peer reviewed; Journal article, 2021)The COVID-19 pandemic at the beginning of 2020 has significantly affected the energy demand in Norway. In order to avoid unnecessary energy use and ensure the proper functioning of buildings, it becomes essential to have ... -
Data-driven analysis of electricity use for office buildings: a Norwegian case study
Ding, Yuemin; Ding, Yiyu; Nord, Natasa (Peer reviewed; Journal article, 2021)Buildings are major consumers of primary energy and main contributors to carbon emission. To improve energy efficiency, it is essential to understand the characteristics of energy use in buildings. This study uses an in-use ... -
Energy analysis and energy planning for kindergartens based on data analysis
Ding, Yiyu; Brattebø, Helge; Nord, Natasa (Journal article; Peer reviewed, 2019)The aim of the study was to utilize different building data for prediction of development in energy use of a typical building type. In this study, energy use and its future development for kindergartens in Trondheim, Norway, ... -
Energy Pathways for Future Norwegian Residential Building Areas
Nord, Natasa; Ding, Yiyu; Skrautvol, Ola; Eliassen, Stian Fossmo (Peer reviewed; Journal article, 2021)Owing to stricter building energy requirements, future buildings will be characterized by low base loads and occasional high peaks. However, future building areas will still contain existing and historical buildings with ... -
Experimental and kinetic studies on NO emission during pulverized coal preheating-combustion process with high preheating temperature
Wang, Shuai; Zhu, Guangqing; Niu, Yanqing; Ding, Yiyu; Hui, Shi'en (Peer reviewed; Journal article, 2021)In this study, two connected drop tube furnaces (DTFs) were used to clarify the NO emission characteristics during the high-temperature preheating-combustion process. The most important factors, including preheating ... -
A hybrid machine learning approach for the load prediction in the sustainable transition of district heating networks
Habib, Mustapha; Timoudas, Thomas Ohlson; Ding, Yiyu; Nord, Natasa; Chen, Shuqin; Wang, Qian (Peer reviewed; Journal article, 2023)Current district heating networks are undergoing a sustainable transition towards the 4th and 5th generation of district heating networks, characterized by the integration of different types of renewable energy sources ... -
A Simple and Novel Method to Predict the Hospital Energy Use Based on Machine Learning: A Case Study in Norway
Xue, Kai; Ding, Yiyu; Yang, Zhirong; Nord, Natasa; Barillec, Mael Roger Albert; Mathisen, Hans Martin; Liu, Meng; Giske, Tor Emil; Stenstad, Liv-Inger; Cao, Guangyu (Peer reviewed; Journal article, 2020)Hospitals are one of the most energy-consuming commercial buildings in many countries as a highly complex organization because of a continuous energy utilization and great variability of usage characteristic. With the ... -
A study on data-driven hybrid heating load prediction methods in low-temperature district heating: An example for nursing homes in Nordic countries
Ding, Yiyu; Timoudas, Thomas Ohlson; Wang, Qian; Chen, Shuqin; Brattebø, Helge; Nord, Natasa (Journal article; Peer reviewed, 2022) -
A systematic approach for data analysis and prediction methods for annual energy profiles: An example for school buildings in Norway
Ding, Yiyu; Brattebø, Helge; Nord, Natasa (Journal article; Peer reviewed, 2021)Current research on energy supply systems and building energy demand presents positive impacts from the two sides, with potentials of combining top-down and bottom-up modelling. Mostly, the energy demand input has been ... -
Trends in Urban Building Stock Energy Use - from Large to Small Scale
Ding, Yiyu (Doctoral theses at NTNU;2023:34, Doctoral thesis, 2023)In keeping with the commitment of a low-emissions society, energy efficiency strategies for the Norwegian urban building stocks shall make a significant contribution to reducing energy use and greenhouse gas emissions. ...