Publications by Marilyne Andersen

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Daylight is valued as an energy efficient alternative to electric light and over the past few decades, climate-based horizontal illuminance metrics have demonstrated the importance of variable sky conditions on annual predictions. These metrics allow us to ...

The built environment is facing environmental regulations more ambitious than ever before. In Europe, a law will lead all new buildings to the Nearly Zero-Energy performance level. However, even if a building does not have any energy consumption for its op ...

An accurate evaluation of daylight distribution through advanced fenestration systems (complex glazing, solar shading systems) requires the knowledge of their Bi-directional light Transmission Distribution Function (BTDF). An innovative equipment for the experimental assessment of these bi-directional functions has been developed, based on a digital imaging detection system. An extensive set of BTDF measurements was performed with this photogoniometer on venetian blinds presenting curved slats with a mirror

Within the framework of a study investigating interactions among indoor environmental factors, two experiments were conducted on the effects of visual stimuli on thermal perception. Thermal responses were recorded with two methods, one quantitative via physiological measurements and a subjective one using a questionnaire. The questionnaire was developed on the basis of the standard EN ISO 10551 (2001-06-01) and recent publications on thermal comfort [1]–[3]. Two types of measurement scales were used, i.e.,

The photogoniometer is composed of a computer-controlled movable mechanical support, presenting two main rotation axes that are powered by DC motors. It uses an accurate and reliable gear technology (harmonic drivers) and is controlled by a micro-computer. The light source is placed 6 meters above. It consists of a short-arc discharge lamp (2.5 kW HMI) combining high luminous efficiency (96 lumen/Watt) with a daylight-close spectum (5600 K); it is placed in a floodlight projector equiped with a hyperbolic m

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 ...

This paper introduces a novel approach for the assessment of daylight performance in buildings, venturing beyond existing methods that evaluate 2-dimensional illumination and comfort within a fixed field-of-view in order to predict human responses to light ...

In addition to stimulating visual responses, light induces a range of circadian, neuroendocrine and neurobehavioral non-visual responses in humans. These effects are mediated primarily via a novel non-rod, non-cone photoreceptor, which is most sensitive to blue light (lambda_max 480nm) and exhibits different sensitivity to the spectrum, timing, intensity, duration and pattern of exposure as compared to visual responses. The discovery of this novel photoreceptor has led to consideration of the nonvisual effe

While energy-efficiency or environmental measures have benefited from numerous and powerful research efforts, further research is needed to better understand the complex interactions between the many parameters influencing human comfort. Studies concerning discomfort glare, for instance, have so far been based on conventional psycho-physical procedures. Given the importance of discomfort glare in building performance, we will show how view direction dependencies of glare can be investigated by integrating e

Current discomfort glare prediction metrics usually account for at least one of the two categories of effects that induce discomfort glare – the saturation and contrast effects. Saturation-driven metrics (overall illuminance on the eye) are suited for brig ...

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 ...

Designing architectural façades that allow sufficient daylight to create visually comfortable and pleasant envi- ronments is a challenging aspect of building design as it requires to account for visual comfort and discomfort glare risks, and understand the factors that influence them. Amongst the key factors that contribute to one’ s perception of discomfort glare, we find the quality and quantity of daylight transmitted through the façade on the one hand, and the characteristics of the human eye and its sy

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 ...

This paper presents a proof-of-concept for a goal-based simulation structure that could offer design support for daylighting performance aspects beyond conventional ones such as illumination, glare or solar gains. The framework uses a previously establishe ...

Designing spaces that are able to balance illumination, glare and solar gains over a year is a real challenge, yet a problem faced every day by building designers. To assist them, a full year, climate-based daylighting simulation method, called Lightsolve, ...

Decisions affecting building form and orientation and choices regarding opening size, type and positioning have a great effect on the building’s access to daylight and are typically made during the earliest stages of architectural design. Computer simulati ...

This paper focuses on parametric design-based visualization methods to represent building performance at the neighborhood scale in the perspective of an integrated design-support system. The goal of the developed methodology is to convey the relative effectiveness of different design alternatives according to a wide range of building performance indicators, including the potential for active solar applications, the energy need for space heating/cooling and (spatial) daylight autonomy The proposed methodolo

Most energy-saving applications of advanced fenestration systems, e.g. solar blinds, novel types of glazing and daylight redirecting devices, require a precise knowledge of their directional light-transmission features. These photometric properties are des ...

Recent studies have shown that the facade and light patterns in a space are an important factor in the occupants' experience, but little is known about the generalizability of these findings in different lighting conditions, uses of space, or latitudes. Th ...

Use of daylight offers great potential benefits in terms of energy savings, visual comfort and health, as long as it is properly controlled. This project is motivated by the necessity to describe façade systems and interior surfaces in order to quantify and compare their benefits in interaction with one another. It focuses on conventional and light-redirecting façade systems and their interaction with indoor coating material in terms of lighting potential. Comparisons are carried out using an annual climate

Marilyne Andersen

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The Case for Occupant-Centric Daylight Analytics: a Comparison of Horizontal Illumination and Immersive View

Findings from a survey on the current use of life-cycle assessment in building design

Bi-directional light transmission properties assessment for venetian blinds : Computer simulations compared to photogoniometer measurements

Investigation of different subjective response scales for thermal comfort analysis: Likert-type and visual analogue scales

Bi-directional Photogoniometer for advanced glazing materials based on digital imaging techniques

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

A human-centric approach to assess daylight in buildings for non-visual health potential, visual interest and gaze behavior

Nonvisual light-response model: a preliminary approach to integrating recent findings in biology into a lighting simulation process

Human Response in Daylit Spaces

Comparing performance of discomfort glare metrics in high and low adaptation levels

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

Discomfort glare from daylight: Influence of transmitted color and the eye's macular pigment

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

Beyond illumination: An interactive simulation framework for non-visual and perceptual aspects of daylighting performance

Interactive expert support for early stage full-year daylighting design: a user’s perspective on Lightsolve

Comprehensive Annual Daylight Design through a Goal-Based Approach

A parametric design-based methodology to visualize building performance at the neighborhood scale

Light distribution through advanced fenestration systems

Subjective and physiological responses towards daylit spaces with contemporary facade patterns in virtual reality: Influence of sky type, space function, and latitude

Integrative approach to assess the performance of light-interacting façades and building materials