All Outputs (90)

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.

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.

Design and analysis of an innovative concentrated solar power system using cascade organic Rankine cycle and two-tank water/steam storage (2021)
Journal Article
Gao, G., Li, J., Li, P., Yang, H., Pei, G., & Ji, J. (2021). Design and analysis of an innovative concentrated solar power system using cascade organic Rankine cycle and two-tank water/steam storage. Energy Conversion and Management, 237, Article 114108. https://doi.org/10.1016/j.enconman.2021.114108

Direct steam generation (DSG) solar power systems have the potential to improve heat collection performance and reduce capital cost. One challenge of the DSG solar thermal power technology is the unsteadiness of steam generation and power conversion... Read More about Design and analysis of an innovative concentrated solar power system using cascade organic Rankine cycle and two-tank water/steam storage.

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.

An innovative approach to recovery of fluctuating industrial exhaust heat sources using cascade Rankine cycle and two-stage accumulators (2021)
Journal Article
Li, P., Cao, Q., Li, J., Lin, H., Wang, Y., Gao, G., …Liu, X. (2021). An innovative approach to recovery of fluctuating industrial exhaust heat sources using cascade Rankine cycle and two-stage accumulators. Energy, 228, Article 120587. https://doi.org/10.1016/j.energy.2021.120587

The fluctuating property of the heat source is a technical obstacle of waste heat recovery, which leads to part-load operation and reduced economics. This work presents a novel system to mitigate the fluctuations by using steam-organic Rankine cycles... Read More about An innovative approach to recovery of fluctuating industrial exhaust heat sources using cascade Rankine cycle and two-stage accumulators.

Analysis of a novel photovoltaic/thermal system using InGaN/GaN MQWs cells in high temperature applications (2020)
Journal Article
Ren, X., Li, J., Gao, D., Wu, L., & Pei, G. (2021). Analysis of a novel photovoltaic/thermal system using InGaN/GaN MQWs cells in high temperature applications. Renewable energy, 168, 11-20. https://doi.org/10.1016/j.renene.2020.12.035

© 2020 Elsevier Ltd The solar cells commonly adopted in the photovoltaic/thermal (PV/T) have negative temperature coefficients, leading to a significant decrement in electrical efficiency as cell's temperature exceeds 80 °C, and thus the PV/T systems... Read More about Analysis of a novel photovoltaic/thermal system using InGaN/GaN MQWs cells in high temperature applications.

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.

Potential of performance improvement of concentrated solar power plants by optimizing the parabolic trough receiver (2020)
Journal Article
Yang, H., Wang, Q., Cao, J., Pei, G., & Li, J. (2020). Potential of performance improvement of concentrated solar power plants by optimizing the parabolic trough receiver. Frontiers in Energy, 14, 867–881. https://doi.org/10.1007/s11708-020-0707-y

This paper proposes a comprehensive thermodynamic and economic model to predict and compare the performance of concentrated solar power plants with traditional and novel receivers with different configurations involving operating temperatures and loc... Read More about Potential of performance improvement of concentrated solar power plants by optimizing the parabolic trough receiver.

Performance investigation of solar tower system using cascade supercritical carbon dioxide Brayton-steam Rankine cycle (2020)
Journal Article
Yang, H., Li, J., Wang, Q., Wu, L., Reyes Rodríguez-Sanchez, M., Santana, D., & Pei, G. (2020). Performance investigation of solar tower system using cascade supercritical carbon dioxide Brayton-steam Rankine cycle. Energy Conversion and Management, 225, Article 113430. https://doi.org/10.1016/j.enconman.2020.113430

© 2020 Elsevier Ltd A novel solar power tower system that integrates with the cascade supercritical carbon dioxide Brayton-steam Rankine cycle is proposed to tackle the challenges of a simple supercritical carbon dioxide system in solar power systems... Read More about Performance investigation of solar tower system using cascade supercritical carbon dioxide Brayton-steam Rankine cycle.

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.

Evaluate the validity of the empirical correlations of clearance and friction coefficients to improve a scroll expander semi-empirical model (2020)
Journal Article
Kutlu, C., Erdinc, M. T., Li, J., Su, Y., Pei, G., Gao, G., & Riffat, S. (2020). Evaluate the validity of the empirical correlations of clearance and friction coefficients to improve a scroll expander semi-empirical model. Energy, 202, Article 117723. https://doi.org/10.1016/j.energy.2020.117723

This study presents a scroll expander modelling methodology for small scale power generation systems by combining scroll geometry and semi-empirical model. Although the semi-empirical model is quite popular, its dependence on several experimentally-d... Read More about Evaluate the validity of the empirical correlations of clearance and friction coefficients to improve a scroll expander semi-empirical model.

Temperature-dependent performance of amorphous silicon photovoltaic/thermal systems in the long term operation (2020)
Journal Article
Ren, X., Li, J., Jiao, D., Gao, D., & Pei, G. (2020). Temperature-dependent performance of amorphous silicon photovoltaic/thermal systems in the long term operation. Applied energy, 275, Article 115156. https://doi.org/10.1016/j.apenergy.2020.115156

The influences of temperature on the performance of amorphous silicon (a-Si) solar cells and photovoltaic (PV) systems are extensively studied in the literature. The benefit from thermal annealing effect at a higher temperature than ambient has been... Read More about Temperature-dependent performance of amorphous silicon photovoltaic/thermal systems in the long term operation.

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.

Effect of regenerator on the direct steam generation solar power system characterized by prolonged thermal storage and stable power conversion (2020)
Journal Article
Li, P., Cao, Q., Li, J., Wang, Y., Pei, G., Gao, C., …Liu, X. (2020). Effect of regenerator on the direct steam generation solar power system characterized by prolonged thermal storage and stable power conversion. Renewable energy, 159, 1099-1116. https://doi.org/10.1016/j.renene.2020.06.037

The direct steam generation (DSG) solar power system using two stage accumulators and cascade steam-organic Rankine cycle (RC-ORC) has remarkably enlarged storage capacity. It can facilitate stable power generation and address the challenges of conve... Read More about Effect of regenerator on the direct steam generation solar power system characterized by prolonged thermal storage and stable power conversion.

Feasibility research on a hybrid solar tower system using steam and molten salt as heat transfer fluid (2020)
Journal Article
Yang, H., Li, J., Huang, Y., Kwan, T. H., Cao, J., & Pei, G. (2020). Feasibility research on a hybrid solar tower system using steam and molten salt as heat transfer fluid. Energy, 205, Article 118094. https://doi.org/10.1016/j.energy.2020.118094

As a high solar concentration technology, the solar tower power (STP) system is an appealing approach to generate high-grade thermal energy and achieve high thermal-to-electric efficiency. In this study, the authors notice the solar flux distribution... Read More about Feasibility research on a hybrid solar tower system using steam and molten salt as heat transfer fluid.

Investigation of an innovative PV/T-ORC system using amorphous silicon cells and evacuated flat plate solar collectors (2020)
Journal Article
Kutlu, C., Li, J., Su, Y., Wang, Y., Pei, G., & Riffat, S. (2020). Investigation of an innovative PV/T-ORC system using amorphous silicon cells and evacuated flat plate solar collectors. Energy, 203, Article 117873. https://doi.org/10.1016/j.energy.2020.117873

© 2020 Elsevier Ltd Solar-driven organic Rankine cycle (s-ORC) power generation is a promising technology with thermal storage for flexible operation to meet domestic variable electricity demand. A satisfactory efficiency of this technology can be ob... Read More about Investigation of an innovative PV/T-ORC system using amorphous silicon cells and evacuated flat plate solar collectors.

Can whole building energy models outperform numerical models, when forecasting performance of indirect evaporative cooling systems? (2020)
Journal Article
Badiei, A., Akhlaghi, Y. G., Zhao, X., Li, J., Yi, F., & Wang, Z. (2020). Can whole building energy models outperform numerical models, when forecasting performance of indirect evaporative cooling systems?. Energy Conversion and Management, 213, Article 112886. https://doi.org/10.1016/j.enconman.2020.112886

This paper presents a whole building energy modelling work incorporating a state-of-the-art indirect evaporative cooling system. The model is calibrated and validated with real-life empirical data, and is capable of representing actual performance of... Read More about Can whole building energy models outperform numerical models, when forecasting performance of indirect evaporative cooling systems?.

A novel integrated solar tri-generation system for cooling, freshwater and electricity production purpose: Energy, economic and environmental performance analysis (2020)
Journal Article
Dabwan, Y. N., Pei, G., Gao, G., Feng, J., & Li, J. (2020). A novel integrated solar tri-generation system for cooling, freshwater and electricity production purpose: Energy, economic and environmental performance analysis. Solar Energy, 198, 139-150. https://doi.org/10.1016/j.solener.2020.01.043

This article presents the results of a thermodynamic-economic-environmental analysis of integrating linear Fresnel reflector (LFR) with a tri-generation system. The optimal integrated solar field size has been identified and the pertinent reduction i... Read More about A novel integrated solar tri-generation system for cooling, freshwater and electricity production purpose: Energy, economic and environmental performance analysis.