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Jan Wienold

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Publications associées (71)

Cognitive performance evaluation under controlled daylight levels at different indoor temperatures

Marilyne Andersen, Giorgia Chinazzo, Jan Wienold

This paper details the results of an experimental study investigating the influence of daylight illuminance levels and indoor temperatures on objective and subjective performance evaluations, investigated through paper-based tasks and questionnaires, respe ...

2019

Shaping light to influence occupants’ experience of space: a kinetic shading system with composite materials

Marilyne Andersen, Anastasios Vassilopoulos, Kynthia Chamilothori, Jan Wienold, Joëlle Baehr-Bruyère

Adaptive kinetic façades are systems capable of modifying their shape to optimize their behavior regarding real time outdoor and indoor conditions. They are typically evaluated based on quantifiable physical parameters such as illuminance levels, with litt ...

IOP Publishing2019

A Critical Literature Review of Spatio-temporal Simulation Methods for Daylight Glare Assessment

Marilyne Andersen, Jan Wienold, Lars Oliver Grobe, Stephen William Wasilewski

A well daylighted space can provide a highly satisfying visual environment. However, if that environment causes us visual discomfort, it can become such a nuisance that we, sometimes literally, turn our backs on this powerful connection to the outside worl ...

2019

Influence of indoor temperature and daylight illuminance on visual perception

Marilyne Andersen, Giorgia Chinazzo, Jan Wienold

This paper details the results of an experimental study investigating the combined effect of indoor temperature (19 ℃, 23 ℃ and 27 ℃) and horizontal illuminances (∼140 lx, ∼610 lx and ∼1440 lx) on visual perception, with daylight as the only source of ligh ...

2019

Variation in thermal, visual and overall comfort evaluation under coloured glazing at different temperature levels

Marilyne Andersen, Giorgia Chinazzo, Jan Wienold

Within the scope of a broader research project about daylight and temperature interaction effects on human responses, this paper investigates how daylight transmitted through spectrally selective glazing (blue, orange and a reference neutral) affects therm ...

2019

Combined effects of daylight transmitted through coloured glazing and indoor temperature on thermal responses and overall comfort

Marilyne Andersen, Giorgia Chinazzo, Jan Wienold

This study investigates the effect of daylight transmitted through three coloured glazing types (blue, orange and neutral) on thermal responses and overall comfort, at three temperature levels (19 °C, 22 °C and 26 °C). The goal is threefold: (i) understand ...

2018

Adequacy of Immersive Virtual Reality for the Perception of Daylit Spaces: Comparison of Real and Virtual Environments

Marilyne Andersen, Kynthia Chamilothori, Jan Wienold

This article presents a novel experimental method that uses a virtual reality (VR) headset, aiming to provide an alternative environment for the conduction of subjective assessments of daylit spaces. This method can overcome the difficulty of controlling t ...

2018

Correspondence: Investigation of Evalglare software, daylight glare probability and high dynamic range imaging for daylight glare analysis

Jan Wienold

2018

Daylight Discomfort Glare Evaluation with Evalglare: Influence of Parameters and Methods on the Accuracy of Discomfort Glare Prediction

Magali Bodart, Jan Wienold, Clotilde Marie A Pierson

Nowadays, discomfort glare indices are frequently calculated by using evalglare. Due to the lack of knowledge on the implications of the methods and parameters of evalglare, the default settings are often used. But wrong parameter settings can lead to inap ...

2018

Methods for using immersive virtual reality for experimental studies in lighting research

Marilyne Andersen, Kynthia Chamilothori, Jan Wienold

Due to the growing popularity of virtual reality (VR) as a tool for conducting subjective experiments, we propose a session addressing methodological concerns and good practices for the use of VR in lighting research, going further than a simple demonstrat ...

2018

Indoor environment as a multi-sensory experience: visual and thermal factor interactions

Marilyne Andersen, Giorgia Chinazzo, Jan Wienold

In our daily lives we are exposed simultaneously to multiple sensory stimuli, such as visual, thermal, acoustic and olfactory. Experienced together, they shape our perception of the environment and determine our comfort. In indoor environments, stimuli are ...

2018

Perceived interest and heart rate response to façade and daylight patterns in Virtual Reality

Marilyne Andersen, Kynthia Chamilothori, Giorgia Chinazzo, Jan Wienold, João Pedro de Matos Rodrigues

This contribution introduces an experimental study aiming to provide concrete evidence on how façade and daylight pattern geometry can affect the emotional responses triggered by a space. The study was conducted in Virtual Reality (VR) where participants w ...

2018

The Effect of Coloured Glazing on Thermal, Visual and Overall Comfort Evaluation

Marilyne Andersen, Giorgia Chinazzo, Jan Wienold

Within the scope of a broader research project about visual and thermal interaction effects on human comfort and perception, the aim of this paper is to study the variation of thermal, visual and overall comfort votes of people exposed to blue and orange g ...

International Colour Association (AIC)2018

A Gaze Visualizer Tool Implementation Of Gaze Data Into Lighting Rendering Tools Using Radiance And Honeybee For Grasshopper3D

Marilyne Andersen, Mandana Sarey Khanie, Jan Wienold

The Gaze Visualizer tool is an implementation of eyetracking (gaze) data and a preliminary gaze responsive light driven (GRL) model, which enables to visualize gaze behavior in a 3D space, in Grasshopper3D. The workflow from obtaining the relevant photomet ...

AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS2018

A field study investigation on the influence of light level on subjective thermal perception in different seasons

Marilyne Andersen, Giorgia Chinazzo, Jan Wienold, Luisa Pastore

This paper evaluates the influence of light levels (i.e., illuminance) on subjective thermal perception of people, distinguishing between thermal sensation and thermal evaluation. The goal is to investigate whether reported effects found by other studies i ...

NCEUB 20182018

Façade design and our experience of space: the joint impact of architecture and daylight on human perception and physiological responses

Marilyne Andersen, Kynthia Chamilothori, Jan Wienold

Daylight has an undeniable value in various aspects of architectural design, ranging from energy efficiency and user comfort to our experience of space. Even though there is substantial evidence of the positive effects of daylight access on occupants, we h ...

2018

Daylight in buildings

Jan Wienold

Daylight should be a significant source of illumination for all spaces with daylight opening(s). Daylight is strongly favoured by building occupants as a way to adequately illuminate the indoor surfaces, and to save energy for electrical lighting. Daylight ...

CEN2018

HDR Images for Glare Evaluation: Comparison Between DSLR Cameras, an Absolute Calibrated Luminance Camera and a Spot Luminance Meter

Marilyne Andersen, Jan Wienold, Peter Hansen

User calibrated digital single-lens reflex (DSLR) cameras are being used in visual comfort and especially for glare evaluations as affordable alternatives to high-end luminance cameras calibrated by the manufacturer itself. While the typical way for a user ...

CIE - International Commission on Illumination2017

Gaze and discomfort glare, Part 1: Development of a gaze-driven photometry

Marilyne Andersen, Mandana Sarey Khanie, Jan Wienold

Discomfort glare is a major challenge for the design of workplaces. The existing metrics for discomfort glare prediction share the limitation that they do not take gaze direction into account. In order to overcome this limitation, we developed a ‘gaze-driv ...

2017

Reinventing daylight

Jean-Louis Scartezzini, Magali Bodart, Mirjam Münch, Jan Wienold

2017

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