RICRI Research Seminar: Advanced Solar PV-X Multigeneration Technologies – Towards a New Frontier
Lecture/ Seminar
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Date
06 May 2026
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Organiser
Otto Poon Research Institute for Climate-Resilient Infrastructure (RICRI)
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Time
11:00 - 12:00
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Venue
Z414, 4/F, Block Z, PolyU and Online via Zoom
Speaker
Prof. Christos N. Markides
Enquiry
RICRI ricri@polyu.edu.hk
Summary
PV modules are typically less than 20% efficient at converting sunlight into electricity; the remainder heats the modules, causing a deterioration in efficiency, while ultimately being lost as waste heat to the environment. These inefficiencies have motivated the development of ‘hybrid’ PV-thermal (PV-T) collector technology, which combines PV cells with a cooling fluid flow – recovering heat from the cells and delivering a useful thermal output, while simultaneously cooling the cells and increasing their electrical efficiency.
In this talk, we will present conventional and advanced hybrid PV-T collector designs along with their underpinning operational principles, discuss the challenges and opportunities of further developing these technologies, and of integrating them within wider solar-energy systems for the affordable provision of cooling, heating and power. We will also propose a new concept that we refer to as ‘PV-X’ solar collectors, which harness additional performance benefits when novel processes are integrated synergistically within the collector.
Keynote Speaker
Prof. Christos N. Markides
Professor of Clean Energy Technologies, Imperial College London
Editor-in-Chief Applied Thermal Engineering and AI Thermal Fluids
United Kingdom
Prof. Christos Markides is Professor of Clean Energy Technologies, Head of the Clean Energy Processes Laboratory, and Leader of the Experimental Multiphase Flow Laboratory, which is the largest experimental space of its kind at Imperial. He is also Editor-in-Chief of Applied Thermal Engineering, and founding Editor-in-Chief of new journal AI Thermal Fluids. He specialises in applied thermodynamics, fluid flow and heat/mass transfer processes in high-performance devices, technologies and systems for thermal-energy recovery, utilisation, conversion or storage, with a particular focus on solar- and waste heat.