Jan Wienold

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Publications associées (71)

COMPARISON OF LUMINANCE BASED METRICS IN DIFFERENT LIGHTING CONDITIONS

Marilyne Andersen, Mandana Sarey Khanie, Jan Wienold

In this study, we evaluate established and newly developed metrics for predicting glare using data from three different research studies. The evaluation covers two different targets: 1. How well the user’s perception of glare magnitude correlates to the pr ...

CIE, Vienna2017

Discomfort glare perception in daylighting: influencing factors

Jan Wienold, Clotilde Marie A Pierson

The mechanism behind the discomfort glare phenomenon, the kind of glare provoking an irritating or distracting effect, is not well understood. Since some of the factors influencing this phenomenon are still unknown, no current indices can properly explain ...

2017

Sensitivity analysis of visual and thermal parameters for energy savings: combining illuminance and temperature set-points for possible trade-offs

Marilyne Andersen, Mathieu Plourde, Joshua Pereira, Giorgia Chinazzo, Jan Wienold

This study presents a methodology for evaluating the effects of simultaneous temperature and illuminance set-point variations on energy consumption. Different illuminance levels are achieved with an innovative dynamic shading control algorithm that allows ...

2017

Daylight in the Built Environment

Marilyne Andersen, Jean-Louis Scartezzini, Magali Bodart, Andreas Schueler, Silvia Coccolo, Jan Wienold

2017

A comparative gaze responsive comfort evaluation for glare control strategies using gaze behavior analysis and discomfort glare assessment

Marilyne Andersen, Mandana Sarey Khanie, Jan Wienold

2017

A preliminary study on the sensitivity of people to visual and thermal parameters in office environments

Marilyne Andersen, Giorgia Chinazzo, Jan Wienold

The evaluation of indoor comfort requires a thorough understanding of how human occupants perceive four indoor environmental factors: visual conditions, air quality, acoustic ambience and thermal conditions. Recent studies have found that overall comfort i ...

2016

Glare Caused By Contrast Between Task And Immediate Surround: An Evaluation Of Luminance Distribution In The Field Of View

Marilyne Andersen, Mandana Sarey Khanie, Jan Wienold, Peter Hansen

Luminance ratios have historically been used to assess glare. Using data from a previous experiment, this exploratory study investigates the relationship between luminance variations in the field of view (FOV), measured as luminance ratios, and glare sensa ...

Cie Central Bureau2016

Gaze Responsive Visual Comfort: New Findings On Gaze Behaviour In A Daylit Office Space In Relation To Glare

Marilyne Andersen, Mandana Sarey Khanie, Jan Wienold

Using a newly developed gaze-driven methodology for discomfort glare assessments, we studied gaze behaviour in different glare conditions. The study was done in a series of experiments where gaze behaviour of the participants were recorded using eye-tracki ...

Cie Central Bureau2016

A SENSITIVITY ANALYSIS ON GLARE DETECTION PARAMETERS

Marilyne Andersen, Mandana Sarey Khanie, Jan Wienold

Existing methods for glare-free daylighting design rely on analyses of physically based lighting simulations employing tools such as Radiance. The rendered image is an accumulation of luminance values from a fixed point of view, which creates a basis for l ...

2015

Fener: A Radiance-based modelling approach to assess the thermal and daylighting performance of complex fenestration systems in office spaces

Jan Wienold

A new Radiance-based modelling approach called Fener is presented. The motivation is to be able to perform detailed analyses of complex fenestration systems (CFS) from the energetic and daylighting points of view in a computationally efficient manner, so t ...

Elsevier2015

Solar reflected glare affecting visual performance

Jan Wienold

Visual comfort is important to the wellbeing of people and their productivity. However, too much light in the field of view can cause discomfort and disability glare. Under certain conditions it can even cause accidents. This paper addresses the disability ...

2014

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