All Outputs (121)

Recent active technologies of greenhouse systems: a comprehensive review (2018)
Journal Article
Harjunowibowo, D., Ding, Y., Omer, S., & Riffat, S. (2018). Recent active technologies of greenhouse systems: a comprehensive review. Bulgarian Journal of Agricultural Science, 24(1), 158-170

Recent innovations in greenhouses for energy-saving purposes have included developments in heat-pump technology, semi-transparent Photovoltaic (PV), lighting technology, and control systems. In addition, retrofitting greenhouse with Light
Emittance... Read More about Recent active technologies of greenhouse systems: a comprehensive review.

Thermal conductivity, structure and mechanical properties of konjac glucomannan/starch based aerogel strengthened by wheat straw (2018)
Journal Article
Wang, Y., Wu, K., Xiao, M., Riffat, S. B., Su, Y., & Jiang, F. (2018). Thermal conductivity, structure and mechanical properties of konjac glucomannan/starch based aerogel strengthened by wheat straw. Carbohydrate Polymers, 197, 284-291. https://doi.org/10.1016/j.carbpol.2018.06.009

This study presents the preparation and property characterization of a konjac glucomannan (KGM)/starch based aerogel as a thermal insulation material. Wheat straw powders (a kind of agricultural waste) and starch are used to enhance aerogel physical... Read More about Thermal conductivity, structure and mechanical properties of konjac glucomannan/starch based aerogel strengthened by wheat straw.

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.

Corrigendum: Materials characterization of innovative composite materials for solar-driven thermochemical heat storage (THS) suitable for building application (2018)
Journal Article
Jarimi, H., Aydin, D., Zhang, Y., Ding, Y., Ramadan, O., Chen, X., Dodo, A., Utlu, Z., & Riffat, S. (2018). Corrigendum: Materials characterization of innovative composite materials for solar-driven thermochemical heat storage (THS) suitable for building application. International Journal of Low-Carbon Technologies, 13(2), 191. https://doi.org/10.1093/ijlct/cty015

A study on incorporation of transpired solar collector in a novel multifunctional PV/Thermal/Daylighting (PV/T/D) panel (2018)
Journal Article
Tian, M., Yu, X., Su, Y., Zheng, H., & Riffat, S. (2018). A study on incorporation of transpired solar collector in a novel multifunctional PV/Thermal/Daylighting (PV/T/D) panel. Solar Energy, 165, https://doi.org/10.1016/j.solener.2018.03.009

When a transparent dielectric compound parabolic concentrator (CPC) PV panel is applied as a skylight in atrium, heat rejection from the PV cells results in both low electrical conversion efficiency and unwanted heat to the atrium in summer, which us... Read More about A study on incorporation of transpired solar collector in a novel multifunctional PV/Thermal/Daylighting (PV/T/D) panel.

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.

A novel evaporative cooling system with a polymer hollow fibre spindle (2018)
Journal Article
Chen, X., Su, Y., Aydin, D., Ding, Y., Zhang, S., Reay, D., & Riffat, S. (2018). A novel evaporative cooling system with a polymer hollow fibre spindle. Applied Thermal Engineering, 132, 665-675. https://doi.org/10.1016/j.applthermaleng.2018.01.005

A polymer hollow fibre evaporative cooling system with a novel configuration of fibre bundle is proposed. With the aim to avoid the flow channelling or shielding of adjacent fibres the fibres inside each bundle were made into a spindle shape to maxim... Read More about A novel evaporative cooling system with a polymer hollow fibre spindle.

Materials characterization of innovative composite materials for solar-driven thermochemical heat storage (THS) suitable for building application (2017)
Journal Article
Jarimi, H., Aydin, D., Zhang, Y., Ding, Y., Ramadan, O., Chen, X., Dodo, A., Utlu, Z., & Riffat, S. (2018). Materials characterization of innovative composite materials for solar-driven thermochemical heat storage (THS) suitable for building application. International Journal of Low-Carbon Technologies, 13(1), https://doi.org/10.1093/ijlct/ctx017

Thermochemical Heat Storage (THS) systems have recently attracted a lot of attention in research and development. One of the main parameters that influence the performance of a THS system is the thermochemical materials. This paper aims to investigat... Read More about Materials characterization of innovative composite materials for solar-driven thermochemical heat storage (THS) suitable for building application.

Numerical and experimental analysis of a novel heat pump driven sorption storage heater (2017)
Journal Article
Aydin, D., Casey, S. P., Chen, X., & Riffat, S. (2018). Numerical and experimental analysis of a novel heat pump driven sorption storage heater. Applied Energy, 211, 954-974. https://doi.org/10.1016/j.apenergy.2017.11.102

This study investigates a hybrid “solid sorption heat storage/air sourced heat pump” system for energy efficient heating of buildings. The proposed system could convert excess energy generated using photovoltaic panels/off-peak electricity to heat an... Read More about Numerical and experimental analysis of a novel heat pump driven sorption storage heater.

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.

Cellulosic-crystals as a fumed-silica substitute in vacuum insulated panel technology used in building construction and retrofit applications (2017)
Journal Article
Tetlow, D., Simon, L. D., Liew, S. Y., Hewakandamby, B. N., Mack, D., Thielemans, W., & Riffat, S. (2017). Cellulosic-crystals as a fumed-silica substitute in vacuum insulated panel technology used in building construction and retrofit applications. Energy and Buildings, 156, https://doi.org/10.1016/j.enbuild.2017.08.058

This article investigates impact of substituting fumed silica with a cellulosic-crystal innovation in a commercial Vacuum Insulated Panel (VIP) core. High building performance demands have attracted VIP technology investment to increase production ca... Read More about Cellulosic-crystals as a fumed-silica substitute in vacuum insulated panel technology used in building construction and retrofit applications.

Experimental investigation of evacuated heat pipe solar collector efficiency using phase-change fluid (2017)
Journal Article
Fang, W., Riffat, S., & Wu, Y. (in press). Experimental investigation of evacuated heat pipe solar collector efficiency using phase-change fluid. International Journal of Low-Carbon Technologies, https://doi.org/10.1093/ijlct/ctx010

Performance of a microencapsulated phase-change material (PCM) as a heat-transport medium in an evacuated heat pipe solar collector was evaluated and the results compared with those using water. Collector efficiency was experimentally determined acco... Read More about Experimental investigation of evacuated heat pipe solar collector efficiency using phase-change fluid.

Reducing greenhouse energy consumption using novelty rooftop: a simulation (2017)
Presentation / Conference Contribution
Harjunowibowo, D., Yate, D., Omer, S. A., & Riffat, S. B. Reducing greenhouse energy consumption using novelty rooftop: a simulation. Presented at 16th International Conference on Sustainable Energy Technologies – SET 2017

Recently, more than 80% of total energy of commercial greenhouse in the northern hemisphere is used just for heating. Mostly, the energy loss happens up to 40% caused by the poor U-value of the façades. Therefore, by lowering the U-value would decrea... Read More about Reducing greenhouse energy consumption using novelty rooftop: a simulation.

Overview of working fluids and sustainable heating, cooling and power generation technologies (2017)
Journal Article
Riffat, S., Aydin, D., Powell, R., & Yuan, Y. (2017). Overview of working fluids and sustainable heating, cooling and power generation technologies. International Journal of Low-Carbon Technologies, 12(4), https://doi.org/10.1093/ijlct/ctx008

Dependency on energy is much higher than the past and it is clear that energy is vital for a sustainable and safer future. Therefore, urgent solutions are required not only to increase share of renewable resources but also more efficient usage of fos... Read More about Overview of working fluids and sustainable heating, cooling and power generation technologies.

Salt impregnated desiccant matrices for ‘open’ thermochemical energy conversion and storage: improving energy density utilisation through hygrodynamic & thermodynamic reactor design (2017)
Journal Article
Casey, S. P., Aydin, D., Elvins, J., & Riffat, S. (2017). Salt impregnated desiccant matrices for ‘open’ thermochemical energy conversion and storage: improving energy density utilisation through hygrodynamic & thermodynamic reactor design. Energy Conversion and Management, 142, https://doi.org/10.1016/j.enconman.2017.03.066

In this study, the performance of three nano-composite energy storage absorbents; Vermiculite-CaCl2 (SIM-3a), Vermiculite-CaCl2-LiNO3 (SIM-3f), and the desiccant Zeolite 13X were experimentally investigated for suitability to domestic scale thermal e... Read More about Salt impregnated desiccant matrices for ‘open’ thermochemical energy conversion and storage: improving energy density utilisation through hygrodynamic & thermodynamic reactor design.

An experimental investigation of a micro-tubular SOFC membrane-separated liquid desiccant dehumidification and cooling tri-generation system (2017)
Journal Article
Worall, M., Elmer, T., Riffat, S., Wu, S., & Du, S. (2017). An experimental investigation of a micro-tubular SOFC membrane-separated liquid desiccant dehumidification and cooling tri-generation system. Applied Thermal Engineering, 120, https://doi.org/10.1016/j.applthermaleng.2017.03.032

This paper reports the results of experimental work carried out on a micro-tubular solid oxide fuel cell tri-generation systemthat uses the waste heat from the fuel cell for dehumidification and cooling though the integration of an open cycle liquid... Read More about An experimental investigation of a micro-tubular SOFC membrane-separated liquid desiccant dehumidification and cooling tri-generation system.

A novel high capacity space efficient heat storage system for domestic applications (2016)
Presentation / Conference Contribution
Ramadan, M. E., Omer, S., & Riffat, S. A novel high capacity space efficient heat storage system for domestic applications. Presented at Solar TR2016: Solar Conference & Exhibition

Energy consumption in domestic buildings is dominated by space heating 60 percent followed by hot water 14 percent in the UK. Space heating and water heating confers a disparate set of industrial challenges to the manufacture and this is a very deman... Read More about A novel high capacity space efficient heat storage system for domestic applications.

A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: nanostructure, activity, mechanism and carbon support in PEM fuel cells (2016)
Journal Article
Sui, S., Wang, X., Zhou, X., Su, Y., Riffat, S., & Liu, C.-J. (2017). A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: nanostructure, activity, mechanism and carbon support in PEM fuel cells. Journal of Materials Chemistry A, 5(5), https://doi.org/10.1039/c6ta08580f

The sluggish rate of the oxygen reduction reaction (ORR) in proton exchange membrane (PEM) fuel cells has been a major challenge. Significantly increasing efforts have been made worldwide towards a highly active ORR catalyst with high durability. Amo... Read More about A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction: nanostructure, activity, mechanism and carbon support in PEM fuel cells.

Field trialling of a pulse airtightness tester in a range of UK homes (2016)
Journal Article
Cooper, E., Zheng, X., Wood, C., Gillott, M. C., Tetlow, D., Riffat, S., & Simon, L. D. (2019). Field trialling of a pulse airtightness tester in a range of UK homes. International Journal of Ventilation, 18(1), 1-18. https://doi.org/10.1080/14733315.2016.1252155

A new low pressure ‘quasi-steady’ pulse technique for determining the airtightness of buildings has been developed further and compared with the standard blower-door technique for field-testing a range of typical UK homes. The reported low pressure a... Read More about Field trialling of a pulse airtightness tester in a range of UK homes.

Desiccant cooling systems: a review (2016)
Journal Article
Sahlot, M., & Riffat, S. (2016). Desiccant cooling systems: a review. International Journal of Low-Carbon Technologies, 11(4), https://doi.org/10.1093/ijlct/ctv032

Desiccant cooling systems have been considered as an efficient method of controlling moisture content in supply air. They do not use any ozone-depleting coolants and consume less energy as compared with the vapour compression systems. This communicat... Read More about Desiccant cooling systems: a review.