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Daylighting performance improvements using of split louver with parametrically incremental slat angle control (2022)
Journal Article
Alsukkar, M., Hu, M., Eltaweel, A., & Su, Y. (2022). Daylighting performance improvements using of split louver with parametrically incremental slat angle control. Energy and Buildings, 274, Article 112444. https://doi.org/10.1016/j.enbuild.2022.112444

Different shading device systems and control strategies can be employed in different parts of a window system to perform different functions, particularly for fully glazed façades. A split louver with various improvements was proposed in this study a... Read More about Daylighting performance improvements using of split louver with parametrically incremental slat angle control.

Quantitative characterization of the effect of inclination angle on flat-plate radiative cooling performance in buildings (2022)
Journal Article
Hu, M., Zhao, B., Suhendri, Cao, J., Wang, Q., Riffat, S., …Pei, G. (2022). Quantitative characterization of the effect of inclination angle on flat-plate radiative cooling performance in buildings. Journal of Building Engineering, 59, Article 105124. https://doi.org/10.1016/j.jobe.2022.105124

The environment-friendly and energy-free nature of radiative sky cooling fosters its application in buildings where a radiative cooler is usually positioned at a tilted angle. However, though the cooling capacity of various radiative cooling material... Read More about Quantitative characterization of the effect of inclination angle on flat-plate radiative cooling performance in buildings.

An automated louver with innovative parametrically-angled reflective slats: Prototyping and validation via using parametric control in Grasshopper along with Arduino board (2020)
Journal Article
Eltaweel, A., Su, Y., Hafez, M., & Eltaweel, W. (2021). An automated louver with innovative parametrically-angled reflective slats: Prototyping and validation via using parametric control in Grasshopper along with Arduino board. Energy and Buildings, 231, Article 110614. https://doi.org/10.1016/j.enbuild.2020.110614

Energy-saving potential in lighting is significant in office buildings due to their primary occupancy during the daytime. This potential can be realised with an advanced daylighting system being particularly able to deliver more uniform and steadier... Read More about An automated louver with innovative parametrically-angled reflective slats: Prototyping and validation via using parametric control in Grasshopper along with Arduino board.

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.

A simulation study on performance improvement of solar assisted heat pump hot water system by novel controllable crystallization of supercooled PCMs (2020)
Journal Article
Kutlu, C., Zhang, Y., Elmer, T., Su, Y., & Riffat, S. (2020). A simulation study on performance improvement of solar assisted heat pump hot water system by novel controllable crystallization of supercooled PCMs. Renewable Energy, 152, 601-612. https://doi.org/10.1016/j.renene.2020.01.090

Domestic hot water (DHW) has a significant share in building’s energy consumption. In order to reduce this consumption, various solutions have been proposed such as controlling the system in an efficient way, using renewable sources and using phase c... Read More about A simulation study on performance improvement of solar assisted heat pump hot water system by novel controllable crystallization of supercooled PCMs.

Comparative study on the annual performance between loop thermosyphon solar water heating system and conventional solar water heating system (2020)
Journal Article
Zhang, T., Yan, Z. W., Wang, L. Y., Zheng, W. J., & Su, Y. H. (2020). Comparative study on the annual performance between loop thermosyphon solar water heating system and conventional solar water heating system. Solar Energy, 197, 433-442. https://doi.org/10.1016/j.solener.2020.01.019

Loop thermosyphon (LT) is usually introduced to overcome the freezing and corrosion problems associated with the conventional solar water heating (SWH) system. Compared with the conventional SWH system, the LT-SWH system possesses a lower nighttime h... Read More about Comparative study on the annual performance between loop thermosyphon solar water heating system and conventional solar water heating system.

Experimental study on a novel photovoltaic thermal system using amorphous silicon cells deposited on stainless steel (2018)
Journal Article
Li, J., Ren, X., Yuan, W., Li, Z., Pei, G., Su, Y., Çağrı, K., Ji, J., & Riffat, S. (2018). Experimental study on a novel photovoltaic thermal system using amorphous silicon cells deposited on stainless steel. Energy, 159, https://doi.org/10.1016/j.energy.2018.06.127

Amorphous silicon (a-Si) cells are able to perform better as temperature increases due to the effect of thermal annealing. a-Si cells have great potential to solve or ease the problems of high power temperature coefficient, large thermal stress cause... Read More about Experimental study on a novel photovoltaic thermal system using amorphous silicon cells deposited on stainless steel.

Off-design performance modelling of a solar organic Rankine cycle integrated with pressurized hot water storage unit for community level application (2018)
Journal Article
Kutlu, C., Li, J., Su, Y., Pei, G., & Riffat, S. (2018). Off-design performance modelling of a solar organic Rankine cycle integrated with pressurized hot water storage unit for community level application. Energy Conversion and Management, 166, https://doi.org/10.1016/j.enconman.2018.04.024

Solar organic Rankine cycle (ORC) has advantages over common PV systems in view of the flexible operation even if solar radiation is unavailable. However, at present the dynamic performance of solar ORC with respect to the off-design behaviour of sto... Read More about Off-design performance modelling of a solar organic Rankine cycle integrated with pressurized hot water storage unit for community level application.

Evaluation of a large dish-type concentrator solar lighting system for underground car park (2018)
Journal Article
Song, D., Lv, H., Liao, J., Huang, W., Huang, S., Cheng, C., Zhou, H., Su, Y., & Riffat, S. (2018). Evaluation of a large dish-type concentrator solar lighting system for underground car park. International Journal of Energy Research, 42(6), 2234-2245. https://doi.org/10.1002/er.4017

To utilize solar energy more efficiently and reduce lighting power consumption in underground public spaces such as car park, a large dish-type concentrator solar lighting system is put forward along with its evaluation, which is a unique design to a... Read More about Evaluation of a large dish-type concentrator solar lighting system for underground car park.

Effect of different carrier gases on productivity enhancement of a novel multi-effect vertical concentric tubular solar brackish water desalination device (2018)
Journal Article
Hou, J., Yang, J., Chang, Z., Zheng, H., & Su, Y. (2018). Effect of different carrier gases on productivity enhancement of a novel multi-effect vertical concentric tubular solar brackish water desalination device. Desalination, 432, 72-80. https://doi.org/10.1016/j.desal.2018.01.011

A novel multi-effect vertical concentric tubular solar brackish water desalination device is introduced in present study. The device consists of four closely spaced concentric pipes, in which the feed water gets preheated by hot brine water to guaran... Read More about Effect of different carrier gases on productivity enhancement of a novel multi-effect vertical concentric tubular solar brackish water desalination device.

Multiple nonlinear regression model for predicting the optical performances of dielectric crossed compound parabolic concentrator (dCCPC) (2017)
Journal Article
Tian, M., & Su, Y. (2018). Multiple nonlinear regression model for predicting the optical performances of dielectric crossed compound parabolic concentrator (dCCPC). Solar Energy, 159, https://doi.org/10.1016/j.solener.2017.10.090

As a typical type of three-dimensional compound parabolic concentrator (CPC), dielectric crossed compound parabolic concentrator (dCCPC) has drawn a significant research attention in these years to explore its angular characteristics in solar collect... Read More about Multiple nonlinear regression model for predicting the optical performances of dielectric crossed compound parabolic concentrator (dCCPC).

A review on the recent research progress in the compound parabolic concentrator (CPC) for solar energy applications (2017)
Journal Article
Tian, M., Su, Y., Zheng, H., Pei, G., Li, G., & Riffat, S. (2018). A review on the recent research progress in the compound parabolic concentrator (CPC) for solar energy applications. Renewable and Sustainable Energy Reviews, 82, https://doi.org/10.1016/j.rser.2017.09.050

Compound parabolic concentrator (CPC) has been gaining ever-increasing attention from academic researchers and industrial developers owing to its stationary feature for solar energy collection with a higher efficiency. As a low concentration concentr... Read More about A review on the recent research progress in the compound parabolic concentrator (CPC) for solar energy applications.

The mass transfer coefficient assessment and productivity enhancement of a vertical tubular solar brackish water still (2017)
Journal Article
Hou, J., Yang, J., Chang, Z., Zheng, H., & Su, Y. (2018). The mass transfer coefficient assessment and productivity enhancement of a vertical tubular solar brackish water still. Applied Thermal Engineering, 128, 1446–1455. https://doi.org/10.1016/j.applthermaleng.2017.09.129

This paper presents an experimental investigation of a single-effect vertical tubular solar brackish water desalination device, with an aim to determine the mass transfer coefficient and its enhancement. The device consists of two closely spaced conc... Read More about The mass transfer coefficient assessment and productivity enhancement of a vertical tubular solar brackish water still.

Using integrated parametric control to achieve better daylighting uniformity in an office room: a multi-Step comparison study (2017)
Journal Article
Eltaweel, A., & Su, Y. (2017). Using integrated parametric control to achieve better daylighting uniformity in an office room: a multi-Step comparison study. Energy and Buildings, 152, https://doi.org/10.1016/j.enbuild.2017.07.033

In addition to windows, louvers are the most common architectural elements widely used in office buildings to protect them from excessive daylight and improve daylight penetration as well. Advanced glazing, window blinds, other fenestration systems a... Read More about Using integrated parametric control to achieve better daylighting uniformity in an office room: a multi-Step comparison study.

Parametric design and daylighting: a literature review (2017)
Journal Article
Eltaweel, A., & Su, Y. (2017). Parametric design and daylighting: a literature review. Renewable and Sustainable Energy Reviews, 73, https://doi.org/10.1016/j.rser.2017.02.011

In the history, architecture was exploited to the human being to protect him from unsteady environmental conditions. In the past centuries, architecture was pioneer art which has special features such as; simplicity, organization, clear style, accura... Read More about Parametric design and daylighting: a literature review.

Controlling venetian blinds based on parametric design; via implementing Grasshopper’s plugins: a case study of an office building in Cairo (2017)
Journal Article
Eltaweel, A., & Su, Y. (2017). Controlling venetian blinds based on parametric design; via implementing Grasshopper’s plugins: a case study of an office building in Cairo. Energy and Buildings, 139, https://doi.org/10.1016/j.enbuild.2016.12.075

Venetian blinds are common type of shading devices and are increasingly operated automatically to overcome the limitations of using manual operation. Automated blinds need to be controlled to maximize benefits of daylight on the aspects of redirectin... Read More about Controlling venetian blinds based on parametric design; via implementing Grasshopper’s plugins: a case study of an office building in Cairo.

A discussion of inner south projection angle for performance analysis of dielectric compound parabolic concentrator (2015)
Journal Article
Yu, X., & Su, Y. (2015). A discussion of inner south projection angle for performance analysis of dielectric compound parabolic concentrator. Solar Energy, 113, https://doi.org/10.1016/j.solener.2014.12.024

In the performance analysis of a trough compound parabolic concentrator (CPC), the concept of south projection angle is often used for the nonmeridional sunlight to compare with the acceptance angle of CPC to determine if solar radiation could be col... Read More about A discussion of inner south projection angle for performance analysis of dielectric compound parabolic concentrator.

Application of RELUX simulation to investigate energy saving potential from daylighting in a new educational building in UK (2014)
Journal Article
Yu, X., Su, Y., & Chen, X. (2014). Application of RELUX simulation to investigate energy saving potential from daylighting in a new educational building in UK. Energy and Buildings, 74, https://doi.org/10.1016/j.enbuild.2014.01.024

Daylighting is a renewable energy solution for illumination and visual comfort in buildings. Daylighting performance and its induced energy saving largely depends on various factors, including room geometry, window-to-wall ratio, window transmittance... Read More about Application of RELUX simulation to investigate energy saving potential from daylighting in a new educational building in UK.

A study on use of miniature dielectric compound parabolic concentrator (dCPC) for daylighting control application (2014)
Journal Article
Yu, X., Su, Y., Zheng, H., & Riffat, S. (2014). A study on use of miniature dielectric compound parabolic concentrator (dCPC) for daylighting control application. Building and Environment, 74, https://doi.org/10.1016/j.buildenv.2013.12.008

Low-concentration solid dielectric compound parabolic concentrator (dCPC) and its variations have been widely regarded as an attractive solution to reduce the cost of a photovoltaic (PV) system, particularly for building-integrated application. Diffe... Read More about A study on use of miniature dielectric compound parabolic concentrator (dCPC) for daylighting control application.