[HTML][HTML] Virtual sensing in intelligent buildings and digitalization

S Yoon - Automation in Construction, 2022 - Elsevier
Virtual sensing technologies have a huge potential in an informative and reliable sensing
environment, which is essential to provide and maintain intelligent services in building life …

A review of recent advancements of variable refrigerant flow air-conditioning systems

H Wan, T Cao, Y Hwang, S Oh - Applied thermal engineering, 2020 - Elsevier
Variable refrigerant flow air-conditioning (VRF) systems are important and widely used
building energy systems around the world. This study reviews recent developments of the …

An explainable one-dimensional convolutional neural networks based fault diagnosis method for building heating, ventilation and air conditioning systems

G Li, Q Yao, C Fan, C Zhou, G Wu, Z Zhou… - Building and …, 2021 - Elsevier
Due to the frequently changed outdoor weather conditions and indoor requirements,
heating, ventilation and air conditioning (HVAC) experiences faulty operations inevitably …

[HTML][HTML] Fault data seasonal imbalance and insufficiency impacts on data-driven heating, ventilation and air-conditioning fault detection and diagnosis performances …

F Zhong, JK Calautit, Y Wu - Energy, 2023 - Elsevier
The heating, ventilation and air-conditioning fault impacts vary with different seasonal
climatic conditions, but the fault data may not be available under some seasons in real …

Novel application of multi-model ensemble learning for fault diagnosis in refrigeration systems

Z Zhang, H Han, X Cui, Y Fan - Applied Thermal Engineering, 2020 - Elsevier
Despite the importance of fault diagnosis in refrigeration systems, the performance and
improvement of most existing diagnostic models are limited by their reliance on a single …

Advanced predictive maintenance and fault diagnosis strategy for enhanced HVAC efficiency in buildings

N Es-sakali, Z Zoubir, SI Kaitouni, MO Mghazli… - Applied Thermal …, 2024 - Elsevier
Variable refrigerant flow (VRF) systems are constantly prone to failures during their lifespan,
causing breakdowns, high energy bills, and indoor discomfort. In addition to correctly …

Ensemble 1-D CNN diagnosis model for VRF system refrigerant charge faults under heating condition

H Cheng, H Chen, Z Li, X Cheng - Energy and Buildings, 2020 - Elsevier
Variable refrigerant flow (VRF) systems are widely-adopted air conditioning systems. When
system faults occur in VRF systems, the efficiency of VRF system will drop drastically. This …

Validation of virtual sensor-assisted Bayesian inference-based in-situ sensor calibration strategy for building HVAC systems

G Li, J Xiong, S Sun, J Chen - Building Simulation, 2023 - Springer
For building heating, ventilation and air-conditioning systems (HVACs), sensor faults
significantly affect the operation and control. Sensors with accurate and reliable …

Review on fault detection and diagnosis feature engineering in building heating, ventilation, air conditioning and refrigeration systems

G Li, Y Hu, J Liu, X Fang, J Kang - IEEE Access, 2020 - ieeexplore.ieee.org
Faults are inevitable in building energy systems, such as heating, ventilation, air
conditioning and refrigeration systems. With the increasing utilization of these systems, their …

Interpretable mechanism mining enhanced deep learning for fault diagnosis of heating, ventilation and air conditioning systems

K Chen, S Chen, X Zhu, X Jin, Z Du - Building and Environment, 2023 - Elsevier
Various faults in the heating, ventilation, and air conditioning (HVAC) systems may lead to
high energy consumption and maintenance costs. Reliable fault detection and diagnosis …