A5028329649- Thermal Radiation and Cooling Technologies
- Building Energy and Comfort Optimization
- Urban Heat Island Mitigation
- solar cell performance optimization
- Atmospheric Ozone and Climate
- Quantum Electrodynamics and Casimir Effect
- Climate Change and Geoengineering
- Atmospheric aerosols and clouds
- Radiative Heat Transfer Studies
- Calibration and Measurement Techniques
- Solar Thermal and Photovoltaic Systems
York University
2021-2025
Abstract This paper analyzes the potential to mitigate global warming using radiative cooling (RC) surfaces on a large scale. The study evaluates net power, forcing (RF), and of different RC materials compared conventional construction roofing materials, Earth's natural surfaces, some reference cases. Key parameters for evaluating above‐mentioned structures include their solar reflectance (albedo) long‐wavelength infrared emissivity. Results show power that can be achieved by an ideal...
This study explores the fabrication and optimization of micro- nano-cellular poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) for passive daytime radiative cooling using phase inversion technique. By tailoring water amount a high reflectance significant emittance are achieved, facilitating efficient cooling.
Herein, we present an optical cavity in the form of a prolate ellipsoid that can greatly enhance performance solar thermophotovoltaic (STPV) systems. The geometrical parameters be designed to control degree photon recycling, temperature emitter within STPV system, gap distance and effective view factor between PV cell emitter, minimize emission losses. Numerical analysis shows ellipsoidal achieve 88.7% system. Results show efficiency 5.62% system with GaSb black-body under radiation at...
Building cooling loads, which continue to increase with increasing global temperatures, are responsible for large quantities of greenhouse gas emissions. Radiative (RC), whereby structures cooled by emitting radiation in the atmospheric window, from 8–13 μm, outer space, is a promising clean technology that can be used meet ever‐increasing building demands. However, effects using RC on airflow velocity and temperature distributions within occupied zone buildings yet investigated. Herein,...
The rapid development of urbanization and global warming have led to a dramatic increase in energy demands for cooling.Conventional cooling systems are intensive, cause significant amounts greenhouse gas (GHG) emissions, add the urban heat island effect, which further increases demands.It has been estimated that about 40% primary is used buildings, most operate heating, ventilation, air conditioning systems.Radiative (RC) an effective passive technique does not require any input during...
Building cooling loads, which continue to increase with increasing global temperatures, are responsible for large quantities of greenhouse gas emissions. Radiative cooling, whereby structures cooled by emitting radiation in the atmospheric window, from 8 – 13 μm, outer space is a promising clean technology that can be used meet ever-increasing building demands. However, effects using RC on airflow velocity and temperature distributions within occupied zone buildings have yet investigated. In...
Herein we present an optical cavity in the form of a prolate ellipsoid that can greatly enhance performance solar thermophotovoltaic (STPV) systems. The geometrical parameters be designed to control degree photon recycling, temperature emitter within STPV system, gap distance and effective view factor between PV cell emitter, minimize emission losses. Numerical analysis shows ellipsoidal achieve 88.7% system. Results show efficiency 5.62% system with GaSb black-body under radiation at...
Herein we present an optical cavity in the form of a prolate ellipsoid that can greatly enhance performance solar thermophotovoltaic (STPV) systems. The geometrical parameters be designed to control degree photon recycling, temperature emitter within STPV system, gap distance and effective view factor between PV cell emitter, minimize emission losses. Numerical analysis shows ellipsoidal achieve 88.7% system. Results show efficiency 5.62% system with GaSb black-body under radiation at...