Skip to main content

Research Repository

Advanced Search

Professor SAFFA RIFFAT's Outputs (15)

A novel approach to thermal storage of direct steam generation solar power systems through two-step heat discharge (2018)
Journal Article
Li, J., Gao, G., Kutlu, C., Liu, K., Pei, G., Su, Y., Ji, J., & Riffat, S. (2019). A novel approach to thermal storage of direct steam generation solar power systems through two-step heat discharge. Applied Energy, 236, 81-100. https://doi.org/10.1016/j.apenergy.2018.11.084

© 2018 Elsevier Ltd Steam accumulators are the only commercial solution for heat storage of direct steam generation (DSG) solar thermal power plants. Current accumulators have low storage capacity as the turbine suffers from inefficient off-design op... Read More about A novel approach to thermal storage of direct steam generation solar power systems through two-step heat discharge.

A novel hybrid dew point cooling system for mobile applications (2018)
Presentation / Conference Contribution
Worall, M., Dicken, A., Shatat, M., Gledhill, S., & Riffat, S. (2018, September). A novel hybrid dew point cooling system for mobile applications. Presented at 8th Heat Powered Cycles Conference 2018, Bayreuth, Germany

A novel dew point cooling system for truck cabin cooling has been designed and tested, which shows excellent performance in environments of low to medium relative humidity. Experimental results showed that cooling capacity of over 1kW could be achiev... Read More about A novel hybrid dew point cooling system for mobile applications.

Experimental studies of a pulse pressurisation technique for measuring building airtightness (2018)
Presentation / Conference Contribution
Zheng, X., Cooper, E., Zu, Y., Gillott, M., Tetlow, D., Riffat, S., & Wood, C. (2018, August). Experimental studies of a pulse pressurisation technique for measuring building airtightness. Presented at 17th International Conference on Sustainable Energy Technology (SET 2018), Wuhan, China

A pulse pressurisation technique is developed and utilised for determining building leakage at low pressure, based on a 'quasi-steady pulse' concept. The underlying principle of the technique is to subject the building envelope to a known volume chan... Read More about Experimental studies of a pulse pressurisation technique for measuring building airtightness.

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.

A comprehensive investigation of using mutual air and water heating in multi-functional DX-SAMHP for moderate cold climate (2018)
Journal Article
Mohamed, E., Riffat, S., Omer, S., & Zeinelabdien, R. (2019). A comprehensive investigation of using mutual air and water heating in multi-functional DX-SAMHP for moderate cold climate. Renewable Energy, 130, 582-600. https://doi.org/10.1016/j.renene.2018.06.075

Solar energy assisted heat pump systems (SAHP) have been used in this application. SAHP system with solar collectors and the heat pump are combined into one unit so as to convey the solar energy to the refrigerant. The solar collector is used as the... Read More about A comprehensive investigation of using mutual air and water heating in multi-functional DX-SAMHP for moderate cold climate.

Economic evaluation of installation of standalone wind farm and Wind+CAES system for the new regulating tariffs for renewables in Egypt (2018)
Journal Article
Ramadan, O., Omer, S., Ding, Y., Jarimi, H., Chen, X., & Riffat, S. (2018). Economic evaluation of installation of standalone wind farm and Wind+CAES system for the new regulating tariffs for renewables in Egypt. Thermal Science and Engineering Progress, 7, 311-325. https://doi.org/10.1016/j.tsep.2018.06.005

Compressed Air Energy Storage (CAES) is widely recognized as a viable solution for large-scale grid integrated renewable energy systems in terms of load levelling to solve/minimize the intermittency effect of renewable energy systems especially with... Read More about Economic evaluation of installation of standalone wind farm and Wind+CAES system for the new regulating tariffs for renewables in Egypt.

A comprehensive review on 2D and 3D models of vertical ground heat exchangers (2018)
Journal Article
Cui, Y., Zhu, J., Twaha, S., & Riffat, S. (2018). A comprehensive review on 2D and 3D models of vertical ground heat exchangers. Renewable and Sustainable Energy Reviews, 94, https://doi.org/10.1016/j.rser.2018.05.063

The ground source heat pumps (GSHPs) have been extensively applied to commercial and residential buildings owing to their high-energy efficiencies and low running costs. The key component of the GSHP is a ground heat exchanger (GHE). The state-of-the... Read More about A comprehensive review on 2D and 3D models of vertical ground heat exchangers.

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.