Green photonics, energy, and related technologies - 3Virtual room: Optonique - 3
|Thursday, May 28|
GP-3-28-1 / Design-driven research on photovoltaic technologies System performance and solar integration in buildings, mobility and our environment
* Angèle Reinders, University of Twente & Eindhoven University of Technology, Netherlands
Most of mankind’s energy demand occurs in densely-populated locations such as the built environment. The logical consequence of an increased use of solar energy is that the design of buildings, cities and landscapes has to be adapted to this sustainable form of on-site energy production, distribution and consumption, leading to integrated solutions instead of solely technological approaches. The main challenge is hence to efficiently and effectively use available surface areas while achieving full societal support. Due to their technical, financial and design features, photovoltaic (PV) technologies can significantly contribute to these developments. The objective of this presentation is thus as follows: to show how design-driven research on photovoltaics can lead to well-integrated PV systems in buildings, mobility and our environment with an excellent performance. Attention will be paid to research on several relatively new topics, namely: (i) performance of building-integrated photovoltaics, (ii) environmental, financial and energy impacts of solar-powered electric mobility and (iii) innovative geometrical designs of luminescent solar concentrator PV devices. Results that will be presented, originate from COST Action ‘PEARL PV’, the ‘PV in Mobility’ project and other.
GP-3-28-2 / Sun Studio: Photovoltaic, Solar Heat Gain and Glare modelling in urban settings
* Stefan Myrskog, Morgan Solar Inc., Canada
Nicolas Martinez, Morgan Solar Inc.
Talat Zaitoun, Morgan Solar Inc.
Zackary Blair, Morgan Solar Inc.
Hiba Shahid, Morgan Solar Inc.
John Paul Morgan, Morgan Solar Inc.
We present Sun Studio, an easy-to-use web-based software to perform detailed solar irradiation modelling of buildings in order to assess their potential for solar energy generation and efficiency improvements. The model calculates photovoltaic generation for standard photovoltaic arrays, building-integrated photovoltaics (BIPV) and can assess non-generating technologies such as stationary blinds and low-emissivity glass for their impact on the thermal environment of the building. Through the outputs of the software the user is able to balance the conflicting desired outcomes of ; more solar power, less solar gain in the summer and high solar gain in the winter as well as the difficult to quantify value of aesthetics and outside view from rooms behinds the added technologies.
GP-3-28-3 / Photovoltaics in Northern Communities
* Simon Geoffroy-Gagnon, Yukon College, Canada
Michael Ross, Yukon College
Northern communities are starting to rely less and less on fossil fuels to produce electricity, and the use of solar photovoltaic cells has become more popular throughout the world, the north being no exception. However, there are a some differences that must be considered when implementing photovoltaics in northern communities such as low solar trajectory, large sunlight time variance throughout the year and the presence pf high proportions of diffuse light.
GP-3-28-4 / Mitigation of Rapid Cloud Shading in Photovoltaic Systems using Improved Module Level Power Electronics
* Rachel Belcher, University of Ottawa, Canada
Javad Fattahi, University of Ottawa
Karin Hinzer, University of Ottawa
Henry Schriemer, University of Ottawa
A module-level DC optimization device is proposed to reduce the effects of shading caused by intermittent shading. The decentralized inverter design is combined with a modular optimizer to meet string power requests, eliminate fast voltage fluctuations, and maintain constant string voltage.
GP-3-28-5 / Angle Dependent Quantum Efficiency Measurements of Bifacial Silicon Solar Cells
* Ras-Jeevan K. Obhi, University of Ottawa, Canada
Erin M. Tonita, University of Ottawa
Mandy R. Lewis, University of Ottawa
Christopher E. Valdivia, University of Ottawa
Mariana I. Bertoni, Arizona State University
Karin Hinzer, University of Ottawa
The external quantum efficiencies of three bifacial silicon solar cell structures were measured at various incident light angles. The resulting short circuit current densities and bifacialities of an a-Si/c-Si heterojunction cell were compared over front and rear faces to determine their relative performance and incidence angle modifier for energy yield calculations. The heterojunction cell had the highest bifaciality of the cells considered.
GP-3-28-6 / Phase changes in PS-b-P2VP reverse micelles by pressurized CO2 for nanostructure deposition
* Edward Zhu, McMaster University, Canada
Ramis Arbi, McMaster University
Ayse Turak, McMaster University
Abstract— CO2 at room temperature and up to 1100psi was used to change the phase of micellar polystyrene-block-poly (2-vinylpyridine). FeCl3 filled micelles subjected to the process formed a phase which resulted in alpha - Fe2O3 nanowires after plasma etching. Particles which were subjected to only a brief CO2 process formed gamma - Fe2O3.