Browsing NTNU Open by Author "Ma, Zhenjun"
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A variation focused cluster analysis strategy to identify typical daily heating load profiles of higher education buildings
Ma, Zhenjun; Yan, Rui; Nord, Natasa (Journal article; Peer reviewed, 2017)This paper presents a variation focused cluster analysis strategy to identify typical daily heating energy usage profiles of higher education buildings. Different from the existing cluster analysis studies which were ... -
Building energy performance assessment using volatility change based symbolic transformation and hierarchical clustering
Ma, Zhenjun; Yan, Rui; Li, Kehua; Nord, Natasa (Journal article; Peer reviewed, 2018)This paper presents the development of a symbolic transformation based strategy with interpretability and visualisation for building energy performance assessment. The strategy was developed using shape definition language ... -
A new data mining strategy for performance evaluation of a shared energy recovery system integrated with data centres and district heating networks
Du, Han; Zhou, Xinlei; Nord, Natasa; Carden, Yale; Ma, Zhenjun (Journal article; Peer reviewed, 2023)This study presents a new data mining strategy to discover the performance and operational patterns of a shared energy recovery (SER) system with a data centre and a district heating network. Multidimensional clustering ...