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Bayesian Calibration for Office-Building Heating and Cooling Energy Prediction Model (2022)
Journal Article
Cui, Y., Zhu, Z., Zhao, X., Li, Z., & Qin, P. (2022). Bayesian Calibration for Office-Building Heating and Cooling Energy Prediction Model. Buildings, 12(7), Article 1052. https://doi.org/10.3390/buildings12071052

Conventional building energy models (BEM) for heating and cooling energy-consumption prediction without calibration are not accurate, and the commonly used manual calibration method requires the high expertise of modelers. Bayesian calibration (BC) i... Read More about Bayesian Calibration for Office-Building Heating and Cooling Energy Prediction Model.

Experimental investigation of a novel vertical loop-heat-pipe PV/T heat and power system under different height differences (2022)
Journal Article
Yu, M., Chen, F., Zhou, J., Yuan, Y., Fan, Y., Li, G., …Zheng, S. (2022). Experimental investigation of a novel vertical loop-heat-pipe PV/T heat and power system under different height differences. Energy, 254, Part A, Article 124193. https://doi.org/10.1016/j.energy.2022.124193

For a novel vertical solar loop-heat-pipe photovoltaic/thermal system, the height difference between evaporator and condenser plays an important role in the heat transport capacity, which has significant impact on the solar thermal efficiency and par... Read More about Experimental investigation of a novel vertical loop-heat-pipe PV/T heat and power system under different height differences.

A proof-of-concept study of a novel ventilation heat recovery vapour injection air source heat pump (2022)
Journal Article
Fan, Y., Li, J., Zhao, X., Myers, S., Cheng, Y., Yu, M., …Yu, S. (2022). A proof-of-concept study of a novel ventilation heat recovery vapour injection air source heat pump. Energy Conversion and Management, 256, Article 115404. https://doi.org/10.1016/j.enconman.2022.115404

Conventional air source heat pumps suffer from frosting in winter and consume a large amount of electricity for defrosting. Meanwhile, ventilation heat recovery is an important approach to energy saving in buildings. This paper conducts a proof-of-co... Read More about A proof-of-concept study of a novel ventilation heat recovery vapour injection air source heat pump.

Experimental investigation and annual performance mathematical-prediction on a novel LT-PV/T system using spiral-descent concentric copper tube heat exchanger as the condenser for large-scale application (2022)
Journal Article
Li, Z., Ji, J., Li, J., Zhao, X., Cui, Y., Song, Z., …Yao, T. T. (2022). Experimental investigation and annual performance mathematical-prediction on a novel LT-PV/T system using spiral-descent concentric copper tube heat exchanger as the condenser for large-scale application. Renewable energy, 187, 257-270. https://doi.org/10.1016/j.renene.2022.01.079

The condensers of loop thermosyphon PV/T systems (LT-PV/T) are usually integrated inside water tanks, which may bring some challenges during combination use. This research innovatively proposed a concentric copper tube heat exchanger as the condenser... Read More about Experimental investigation and annual performance mathematical-prediction on a novel LT-PV/T system using spiral-descent concentric copper tube heat exchanger as the condenser for large-scale application.

Combined Rankine Cycle and dew point cooler for energy efficient power generation of the power plants - A review and perspective study (2021)
Journal Article
Ma, X., Zhao, X., Zhang, Y., Liu, K., Yang, H., Li, J., …Liu, Z. (2022). Combined Rankine Cycle and dew point cooler for energy efficient power generation of the power plants - A review and perspective study. Energy, 238, Article 121688. https://doi.org/10.1016/j.energy.2021.121688

The Rankine Cycle is a thermodynamic process widely applied to power plants such as coal-fired power plants or nuclear reactors. The thermal efficiency of a power plant is largely dependent upon the temperature difference between a heat source and a... Read More about Combined Rankine Cycle and dew point cooler for energy efficient power generation of the power plants - A review and perspective study.

Electrical and thermal performance comparison between PVT-ST and PV-ST systems (2021)
Journal Article
Han, Z., Liu, K., Li, G., Zhao, X., & Shittu, S. (2021). Electrical and thermal performance comparison between PVT-ST and PV-ST systems. Energy, 237, Article 121589. https://doi.org/10.1016/j.energy.2021.121589

Both photovoltaic (PV), and photovoltaic thermal (PVT) are technologies that use solar energy for power output. Combining them with solar thermal (ST) can enable the generation of electricity as well as high-temperature hot water. In this study, The... Read More about Electrical and thermal performance comparison between PVT-ST and PV-ST systems.

A comprehensive review on the application of nanofluid in heat pipe based on the machine learning: Theory, application and prediction (2021)
Journal Article
Wang, X., Luo, L., Xiang, J., Zheng, S., Shittu, S., Wang, Z., & Zhao, X. (2021). A comprehensive review on the application of nanofluid in heat pipe based on the machine learning: Theory, application and prediction. Renewable & sustainable energy reviews, 150, Article 111434. https://doi.org/10.1016/j.rser.2021.111434

This paper introduces three paramount factors i.e. viscosity, thermal conductivity and stability that affect the application of mono and hybrid nanofluids in heat pipes. The applications of nanofluids in various types of heat pipes are reviewed and t... Read More about A comprehensive review on the application of nanofluid in heat pipe based on the machine learning: Theory, application and prediction.

Mathematical and experimental evaluation of a mini-channel PV/T and thermal panel in summer mode (2021)
Journal Article
Zhou, J., Zhao, X., Yuan, Y., Fan, Y., & Li, J. (2021). Mathematical and experimental evaluation of a mini-channel PV/T and thermal panel in summer mode. Solar Energy, 224, 401-410. https://doi.org/10.1016/j.solener.2021.05.096

In this paper, a mini-channel PV/T and mini-channel thermal panel hot water system is presented. The thermal panels in this system use mini-channel tube as the heat exchanger, which has a small hydraulic diameter and large heat exchanger area, and th... Read More about Mathematical and experimental evaluation of a mini-channel PV/T and thermal panel in summer mode.

Parametric Analysis of a Novel Photovoltaic/Thermal System Using Amorphous Silicon Cells and Micro-Channel Loop Heat Pipes (2021)
Journal Article
Ren, X., Li, J., Zhao, X., Cao, J., Pei, G., & Ji, J. (2021). Parametric Analysis of a Novel Photovoltaic/Thermal System Using Amorphous Silicon Cells and Micro-Channel Loop Heat Pipes. Heat Transfer Engineering, 43(13), 1149-1170. https://doi.org/10.1080/01457632.2021.1943874

Photovoltaic/thermal (PV/T) systems are taking up an increasing market share owing to a high overall solar energy efficiency. An innovative PV/T system that combines amorphous silicon cells and micro-channel loop heat pipes is proposed in this paper.... Read More about Parametric Analysis of a Novel Photovoltaic/Thermal System Using Amorphous Silicon Cells and Micro-Channel Loop Heat Pipes.

Scientific and technological progress and future perspectives of the solar assisted heat pump (SAHP) system (2021)
Journal Article
Fan, Y., Zhao, X., Han, Z., Li, J., Badiei, A., Akhlaghi, Y. G., & Liu, Z. (2021). Scientific and technological progress and future perspectives of the solar assisted heat pump (SAHP) system. Energy, 229, Article 120719. https://doi.org/10.1016/j.energy.2021.120719

Among all available solar technologies, solar-assisted heat pump (SAHP) is the most popular technology for low- and medium-temperature applications, i.e., drying, space heating, and water heating. This paper presents a critical review of the SAHP, le... Read More about Scientific and technological progress and future perspectives of the solar assisted heat pump (SAHP) system.

Advanced big-data/machine-learning techniques for optimization and performance enhancement of the heat pipe technology – A review and prospective study (2021)
Journal Article
Wang, Z., Zhao, X., Han, Z., Luo, L., Xiang, J., Zheng, S., …Hu, M. (2021). Advanced big-data/machine-learning techniques for optimization and performance enhancement of the heat pipe technology – A review and prospective study. Applied energy, 294, Article 116969. https://doi.org/10.1016/j.apenergy.2021.116969

A heat pipe (HP) is a passive heat transfer device able to transmit heat a few meters or several hundred meters away from the heat source without use of external energy. This paper presents a critical review of the HP technologies. It is found that t... Read More about Advanced big-data/machine-learning techniques for optimization and performance enhancement of the heat pipe technology – A review and prospective study.

Comparative investigation of concentrated photovoltaic thermal-thermoelectric with nanofluid cooling (2021)
Journal Article
Rejeb, O., Shittu, S., Li, G., Ghenai, C., Zhao, X., Ménézo, C., …Bettayeb, M. (2021). Comparative investigation of concentrated photovoltaic thermal-thermoelectric with nanofluid cooling. Energy Conversion and Management, 235, Article 113968. https://doi.org/10.1016/j.enconman.2021.113968

Thermoelectric modules are capable of converting heat into electric energy via the Seebeck effect. Therefore the addition of the thermoelectric generator modules (TEG) between the PV module and the absorber plate inside a concentrated photovoltaic th... Read More about Comparative investigation of concentrated photovoltaic thermal-thermoelectric with nanofluid cooling.

Design and analysis of a novel dual source vapor injection heat pump using exhaust and ambient air (2020)
Journal Article
Li, J., Fan, Y., Zhao, X., Bai, X., Zhou, J., Badiei, A., …Ma, X. (2021). Design and analysis of a novel dual source vapor injection heat pump using exhaust and ambient air. Energy and Built Environment, https://doi.org/10.1016/j.enbenv.2020.11.004

A novel dual source vapor injection heat pump (DSVIHP) using exhaust and ambient air is proposed. The air exhausted from the building first releases energy to the medium-pressure evaporator and is then mixed with the ambient air to heat the low-press... Read More about Design and analysis of a novel dual source vapor injection heat pump using exhaust and ambient air.

Hourly performance forecast of a dew point cooler using explainable Artificial Intelligence and evolutionary optimisations by 2050 (2020)
Journal Article
Golizadeh Akhlaghi, Y., Aslansefat, K., Zhao, X., Sadati, S., Badiei, A., Xiao, X., …Ma, X. (2021). Hourly performance forecast of a dew point cooler using explainable Artificial Intelligence and evolutionary optimisations by 2050. Applied energy, 281, Article 116062. https://doi.org/10.1016/j.apenergy.2020.116062

The empirical success of the Artificial Intelligence (AI), has enhanced importance of the transparency in black box Machine Learning (ML) models. This study pioneers in developing an explainable and interpretable Deep Neural Network (DNN) model for a... Read More about Hourly performance forecast of a dew point cooler using explainable Artificial Intelligence and evolutionary optimisations by 2050.

A chronological review of advances in solar assisted heat pump technology in 21st century (2020)
Journal Article
Badiei, A., Golizadeh Akhlaghi, Y., Zhao, X., Shittu, S., Xiao, X., Li, J., …Li, G. (2020). A chronological review of advances in solar assisted heat pump technology in 21st century. Renewable & sustainable energy reviews, 132, Article 110132. https://doi.org/10.1016/j.rser.2020.110132

This paper presents a comprehensive review on developments and advances of Solar Assisted Heat Pump technology reported in 21st century. Combination of thermal and photovoltaic solar collectors with heat pumps has been widely used in recent decades f... Read More about A chronological review of advances in solar assisted heat pump technology in 21st century.

Economic and environmental analysis of a novel rural house heating and cooling system using a solar-assisted vapour injection heat pump (2020)
Journal Article
Fan, Y., Zhao, X., Li, J., Li, G., Myers, S., Cheng, Y., …Ma, X. (2020). Economic and environmental analysis of a novel rural house heating and cooling system using a solar-assisted vapour injection heat pump. Applied energy, 275, Article 115323. https://doi.org/10.1016/j.apenergy.2020.115323

An efficient low-carbon system is proposed to meet the heating and cooling demands of rural houses in cold regions. Mini-channel solar panels incorporating a novel multiple-throughout-flowing loop are used for heat collection, whilst a vapour injecti... Read More about Economic and environmental analysis of a novel rural house heating and cooling system using a solar-assisted vapour injection heat pump.

Electrical and mechanical analysis of a segmented solar thermoelectric generator under non-uniform heat flux (2020)
Journal Article
Shittu, S., Li, G., Xuan, Q., Zhao, X., Ma, X., & Cui, Y. (2020). Electrical and mechanical analysis of a segmented solar thermoelectric generator under non-uniform heat flux. Energy, 199, Article 17433. https://doi.org/10.1016/j.energy.2020.117433

Optimization of segmented solar thermoelectric generator for power output enhancement has been well researched however, the mechanical reliability study of such devices is usually neglected. In addition, assumed heat flux distribution or uniform flux... Read More about Electrical and mechanical analysis of a segmented solar thermoelectric generator under non-uniform heat flux.

Review of thermoelectric geometry and structure optimization for performance enhancement (2020)
Journal Article
Shittu, S., Li, G., Zhao, X., & Ma, X. (2020). Review of thermoelectric geometry and structure optimization for performance enhancement. Applied energy, 268, Article 115075. https://doi.org/10.1016/j.apenergy.2020.115075

© 2020 Elsevier Ltd Thermoelectric geometry and structure optimization are vital research areas which are being explored extensively in recent years due to significant performance enhancement achieved. However, the lack of a single review paper on th... Read More about Review of thermoelectric geometry and structure optimization for performance enhancement.

Experimental and numerical investigation of a novel photovoltaic/thermal system using micro-channel flat loop heat pipe (PV/T-MCFLHP) (2020)
Journal Article
Chen, F., Hu, M., Badiei, A., Yu, M., Huang, Z., Wang, Z., & Zhao, X. (2020). Experimental and numerical investigation of a novel photovoltaic/thermal system using micro-channel flat loop heat pipe (PV/T-MCFLHP). International journal of low carbon technologies, 15(4), 513-527. https://doi.org/10.1093/ijlct/ctaa019

© 2020 The Author(s). Published by Oxford University Press. All rights reserved. In this paper, a novel photovoltaic/thermal system using micro-channel flat loop heat pipe (PV/T-MCFLHP) is proposed, and the thermal and electrical performance of the s... Read More about Experimental and numerical investigation of a novel photovoltaic/thermal system using micro-channel flat loop heat pipe (PV/T-MCFLHP).

Geometry Effect on Photovoltaic-Thermoelectric Transient Performance (2020)
Conference Proceeding
Shittu, S., Li, G., Zhao, X., & Ma, X. (2020). Geometry Effect on Photovoltaic-Thermoelectric Transient Performance. In Volume 2: Proceedings of 11th International Conference on Applied Energy, Part 1, Sweden, 2019

This paper presents a three-dimensional numerical investigation on the effect of thermoelectric geometry on hybrid photovoltaic-thermoelectric (PV-TE) performance under varying weather conditions. Four thermoelectric (TE) geometries corresponding to... Read More about Geometry Effect on Photovoltaic-Thermoelectric Transient Performance.