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E. Brembilla

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10 records found

An Interactive and Inclusive Hub for the Future

This project investigates how the Dutch National Library (KB) can evolve from an introverted archive into an extroverted civic space in an age of digitisation and AI. The research combines three strands: analysis of the existing KB and its heritage values, user research on changing study and work patterns, and spatial modelling with DepthMapX to understand movement and visibility. Together, these methods ask how architecture, technology and behaviour can be aligned to keep a large state library socially relevant.

Findings show that users still value physical presence, atmospheres and chance encounters, but expect more flexibility, visibility of activities and intuitive navigation. The study also reveals that much of the existing KB mass has low social and spatial value, while its structural skeleton and reading hall remain important heritage anchors. The design response therefore proposes selective removal of low value wings, a new public plaza and a lightweight modular façade that adds hybrid workspaces, terraces and green infrastructure around the preserved core. Rather than providing a final blueprint, the project offers a framework of spatial guidelines and technical strategies. It demonstrates how a national library can be reconceived as a porous, data informed and climate responsive platform while building upon its architectural and institutional legacy.
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This thesis investigates the integration of agrophotovoltaic (agri-PV) systems into apple and pear orchards, focusing on how orchard structure and PV array configuration influence light availability. Agri-PV offers a promising solution to improve land-use efficiency by combining food and energy production, while elevated PV modules can also protect high-value orchard crops from extreme weather. Given the light sensitivity of fruit production, accurate light modeling is essential to ensure agri-PV systems maintain both productivity and energy yield.

The main objective was to develop a flexible, modular 3D orchard model suitable for integration into a ray tracing-based light simulation framework. The study focuses on two tree-training systems compatible with agri-PV integration—Tall Spindle and Narrow Orchard System (NOS)—due to their narrow, vertically oriented canopies. Using PyVista, a customizable tree modeling framework was created, supporting seasonal development and adaptable to various training systems and species. Simulations were conducted under both open-field and agri-PV scenarios, with irradiance quantified on the canopy and PV modules for each system and array configuration.

The results showed that while total seasonal light availability was similar across systems in open-field conditions, vertical light distribution varied due to differences in canopy structure. Agri-PV simulations revealed a near-linear relationship between ground coverage ratio (GCR) and canopy light reduction, with narrow-row systems like NOS experiencing greater losses. PV array design also affected both total light availability and its vertical distribution

In conclusion, orchard geometry and PV design jointly influence light availability and distribution in agri-PV systems. Tailoring agri-PV layouts to specific orchard structures is therefore crucial, and the 3D orchard model developed in this thesis provides a valuable tool for identifying optimal design combinations. ...

A Spatial Practice for River Rights

This thesis investigates how posthuman and new materialist theories can inform urban design practices that cultivate ongoing care for more-than-human actors, with a particular focus on the Meuse River. Challenging dominant anthropocentric and extractive planning paradigms, the research reimagines the river as an agential being embedded within a web of human and nonhuman relations. Through methods grounded in situated knowledge, critical cartography, and relational thinking, the project explores how designers might listen to, interpret, and translate the language of the river into the urban practice.

The project consists of three interrelated components: (1) an open-source digital Atlas for the Meuse that collects a variety of translations of the river’s agency and entanglements; (2) a physical Cabinet for Counter Narratives, a mobile table for discussion enabling collaborative reinterpretations of the Meuse territory; and (3) a Nomadic School for Designers that hosts site-specific workshops where participants co-create alternative cartographies. The three elements are designed to work together as the Cabinet travels across the river basin to facilitate workshops on-site, producing collaborative Cartographies of Dialogue that are subsequently integrated into the digital Atlas.

Together, these components translate theory into an ongoing practice of engaging-with and caring-for the places one designs with. By encouraging slow, attentive design processes and interdisciplinary inquiry, the project repositions the urban designer from master of space to mediator of complex ecologies. As the atlas expands, it gathers situated evidence that supports recognition of the river’s intrinsic rights and cultivates a sense of guardianship among those living along its basin. In doing so, the project contributes to the Rights of Nature movement from an urban design perspective, amplifying the voice of the river within the discipline and beyond.

Explore the set-up of the Alternative Atlas for the Meuse, an open-source website that is both tool and method for co-designing with the river, http://www.meuse-atlas.nl ...
Master thesis (2025) - V. Tsalapati, A. Rafiee, E. Brembilla
Daylight is a significant factor in the decision-making process of urban planners and architects when intervening in an urban environment. A considerable element in such a complex environment, assessed in daylight simulations, is greenery, particularly trees, due to their interaction with sunlight and their shading effects.
This thesis investigates the impact of diverse tree 3D representations produced by Actueel Hoogtebestand Nederland (AHN) point cloud data when performing daylight simulation on scenes integrating them. The assessed tree 3D representations are point cloud based representation using small cubes instead of the points from the original point cloud, voxels, alpha shapes of individual trees, and convex hull of branch points. The tool for the daylight simulation was the Daylight Availability Workflow of Climate Studio plugin in Rhino
software which produces time series of simulated illuminance values based on the location and the local solar data, the scene, the material properties of the objects of the scene and surface on which simulation is performed. Specifically, regarding the assigned materials for the voxel presentation, two approaches were followed; one related to the predefined opaque material properties in Rhino software and the other to transparent materials defined by the density point inside a voxel. The reference of the simulations was a dataset of actual illuminance values recorded by the sensor located on the west facade of the CCC building, where is the
position that the simulation was conducted. Also, to examine how the seasonal changes influence the simulation results, simulations for two months, February and June, were performed. For the June simulations, a synthesized point cloud was generated by combining the AHN points with additional points representing the tree canopy.
Next, results from all days in both months the results showed that the point cloud based representation caused a significant overestimation of simulated illuminance values, whereas the Alpha Shape and Convex Hull representations resulted in underestimation. In contrast, the simulation outcomes for voxel representations depended on their material properties (opaque or transparent), spatial allocation, and size. It was proven that for February via the voxel representations of sizes close to 0.10 m there was the best fit between simulations and sensor data, yet it is not clear which voxel material is the most optimal for all the different
sky conditions. However, in June the simulations were not as accurate as in February, as the synthesized point cloud representation probably did not include a sufficient number of points and as the simulation system performed less accurately for days under clear sky conditions.
Consequently, the study demonstrates that voxel representations with sizes around 0.10 m provide the most reliable results for tree modeling in daylight simulations in February, while clarifying the limitations that gave rise to to the poorer performance of alternative representations and of June simulations. ...
Converged solar reflection resulting from the curved façades of mid-rise and high-rise buildings has proven to be a uniquely dangerous phenomenon, yet increasingly common. The "death ray" incident at 20 Fenchurch St (the "Walkie Talkie" Building) in London in 2013 was mirrored by a similar occurrence at the Amsterdam University Medical Center (AMC) in 2021, where parts of a car melted from the intense heat produced. This reoccurrence raises a fundamental question as to why this problem keep happening. Several factors may contribute: past studies focused on isolated instances, many building engineers and architects are unaware of the risks, and numerical reproduction of this phenomenon involves numerous parameters and complex scripting.
This thesis aims to provide an algorithm to accurately reconstruct the converged solar reflection phenomenon numerically by analyzing various input parameters, such as the geometry of a façade, the nonlinear reflection rate of glass panels, and the effect of anisotropic sky models. To ensure the validity of the model, on-site solar irradiance measurements were conducted in the parking lot of the AMC building. Additionally, the program was used to reenact the phenomenon at the Walkie Talkie building before improvements to its façade.
Results indicate that the three-dimensional problem can initially be approached with a two-dimensional model using horizontal cross-sections of the façade. The angles at which the most intense focal points occur in both the 3D and 2D models of the AMC building correspond to each other, at 15.24 and 23.04 degrees from the optical axis of the façade (solar azimuth angles of 147.34 and 139.54 degrees from the north). The study also concludes that under the same conditions, replacing a quarter-circle-shaped curved façade with a parabolic-shaped curved façade would significantly worsen the effect, potentially leading to five times higher converged solar reflection on the ground.
In the case of the AMC building, the highest recorded irradiance during measurement was 4834 W/m². This value differed by only 13.45% from the 3D model using the Reindl sky model, which showed 4184 W/m². Conversely, the conventional isotropic sky model produced a larger difference of 23.68%. For the 20 Fenchurch St building, the Reindl sky model also produced more intense results compared to the isotropic model, with the focal point intensity reaching up to 6271 W/m² on August 29, 2013. However, limited access to accurate three-dimensional models and details of the surrounding area may have affected the results.
The study also examined the systematic error due to mismatched curvature of the glass panels with the building's curvature. This mismatch caused irradiance variations, increasing by up to 23.52% at one time and decreasing by 13.09% at another, indicating no constant increase or decrease on the intensity of the focal point.
In conclusion, this thesis successfully captures various variable inputs to recreate an accurate converged solar reflection phenomenon in both the AMC and the "Walkie Talkie" buildings. It integrates these variables into one continuous script without the need to switch between different software, providing a comprehensive tool for assessing and mitigating this dangerous architectural flaw. ...
Master thesis (2023) - A.V. Wagner, A. Luna Navarro, E. Brembilla
Climate extremes are becoming increasingly frequent and intense worldwide, with greater pressure on ecosystems, the built environment, and humankind. Heat waves, in particular, are overheating indoor spaces and thermal comfort as one of the major comfort requirements of buildings is disrupted or, in the most extreme situations, lost. In extreme cases, this can lead to life-threatening circumstances and explains the high morbidity and mortality during past heat wave events. It is crucial to urgently develop a more climate-resilient built environment, that can effectively respond to the future climate hazard of heat waves. Hereby, the building envelope has a key role to mitigate the impact of the exterior environment on the occupants’ indoor comfort. Accordingly, exploring possibilities of façade design for “future-proof” buildings is important to reduce health risks and improve the daily quality of life. However, the lack of comprehensive research on assessment methods for evaluating the influence of façade design on building thermal resilience proves the current challenges of implementing the concept of “resilience” in a practical manner.
This research aims to improve the design process of retrofit options, increasing thermal indoor comfort during heat waves, and enhancing long-term building thermal resilience. It includes the development of resilience indices, based on the assessing different stages of thermal resilience during extreme heat periods. By conducting a systematic literature review focusing on thermal resilience terminology and corresponding assessment methods, the study identifies limitations and gaps in current research. A novel method is proposed, which incorporates future climate scenarios and multiple resilience indicators. While most existing research solely relies on the measurement of a single indicator to measure thermal resilience, this thesis demonstrates the importance of combining multiple resilience indicators to comprehensively assess the influence of façades on building thermal resilience. The proposed framework aims to be universally applicable and adjustable, while assessing the short- and long-term impacts of retrofit interventions on the performance of the façade. The resulting index visualizes how various façade retrofit variables can influence thermal resilience at the building level, which provides a deeper understanding of dependencies and thus enhances improved decision-making during the development of façade retrofits.
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Exploring the potential of self designed facade-user Archetypes in personalization of external shading systems in office buildings

Building envelopes are extremely significant in providing adequate indoor environment. They have tremendous impact on the energy requirements of buildings. The design methodology associated with building envelopes primarily addresses optimization for improving indoor environmental quality and energy efficiency of the buildings. This process does not account for the variance between occupant preferences and their importance on the various indoor environmental quality domains. The design of a building envelope has been found to significantly impact the well being of building occupants. This research proposes a user-centered design approach that evaluates the factors influencing occupant comfort and preferences. To achieve this, facade user-archetypes are employed to personalize building shading systems for users.

The multi-domain impact of building envelopes and external shades is studied to determine the environmental domains associated with shading systems. A classification scheme is developed for shading systems on the basis of their operation, placement, interaction and permeability. Next, shading system parameters are evaluated through geometry, materiality and control to understand which design parameters have the highest influence on occupant comfort and energy performance. To accurately capture the multi-domain influence of shading systems, the shading systems are simulated within a model space using the EnergyPlus and Radiance engines. The simulation results are stored in a data-set that cross evaluates shading system performance across 8 orientations and for occupants at specific spacing from the window.

A systematic literature review is conducted to identify factors impacting occupant preferences and current clustering methods for user archetypes. Based on this, an occupant preference framework is created and used to design a questionnaire. The questionnaire is distributed to office workers and individuals in different settings to evaluate their preferences. The responses received from the questionnaire are analysed using correlation and ANOVA test is used to evaluate which occupant characteristics show a higher correlation to certain preferences and environmental preferences. Based on the results, feature set iterations are developed which are processed further for dimensionality reduction. The feature set that captures the maximum occupant characteristics with a reliable explained variance is clustered using hierarchical clustering and K-means clustering algorithms.

The clusters resulting from the analysis form the archetypes, which are then utilized in design scenarios. The weights and preferences of the archetypes are incorporated to determine the most suitable shading system for the occupants. Scenarios are developed to use supervised / semi-supervised learning methods to predict the archetype of new users based on existing archetypes formed.

The findings demonstrate a high accuracy of the archetypes in recommending shading systems based on the assigned environmental importance and visual preferences of individual users. The research highlights that each user has unique preferences, which can lead to different design recommendations based on their responses. Furthermore, the research showcases the practical implementation of archetypes in designing spaces and emphasizes their potential application in future facade design and control systems. ...
This thesis concerns the application of different multi-objective optimization (MOO) methods and strategies for finding the optimal envelope for a given building plot and lighting performance indicators. More specifically, the PV potential and daylighting potential of the building are maximized using different optimization solvers. Auxilliary objectives are introduced to constrain the model to a certain compactness and size. The method utilises an existing data framework called TopoGenesis and solves the problem using the PyGmo library.

A ray tracing is used to find all possible collisions between the objective test
points and the building mass and environment. The problem is first presented as a standard integer programming problem, but solving this problem is not feasible if complexity needs to be kept at a reasonable level. An alternative method of continuous optimization is therefore proposed that uses (meta)heuristics to find an optimal solution for maximizing the objective functions. The occupation status of the massing is used as inputs for the decision variables.

After the application of this method on small scale toy problems, a few of the
design options are selected and evaluated by their performance indicators, as well as the measure with which the option makes sense from a more traditional design perspective. The comparison of the performance and results of both methods give insight into the recommended workflow, settings, and pitfalls for finding an optimal solution to a multi-criteria design problem with visibility objectives. From the initial results, the Non-Sorted Genetic Algorithm seems to be the best option for solving these types of problems, and the PV potential objective is validated. The daylighting potential objective performs less satisfactory and suggestions are made on alternative approaches for this metric. ...

P.V. integrated shading device

The EU is committed to reducing the energy used and Co2 produced by 2050. Every component plays an important part in building an energy efficient building. This thesis looks at P.V. integrated shading devices.

Shading devices are designed to block the excess solar radiation coming into the building to reduce the energy load of a building. This surface can be utilized to generate electricity by adding P.V. panels. P.V. panels are more efficient if they track the sun’s movement to increase the amount of solar radiation falling on the surface. The existing solar tracking devices fail due to multiple gears and the load of the panel on the rotational device.

To tackle this problem heliotropic plants were studied. Heliotropic plants follow the sun’s movement to receive more solar radiation for photosynthesis. The internal mechanisms and forces of a sunflower (heliotropic plant) that cause this movement was analysed through an experiment and digital image correlation. The analysis showed that the sunflower’s stem utilizes water to expand and contract the sides of the stem in a diurnal pattern so that the stem can track the sun. This expansion and contraction curves the stem to move it 14 degrees which is sufficient to increase the solar radiation on the plant.

This property of expansion and contraction was taken forward to design a sun tracking P.V. integrated shading to produce more energy. The expansion and contraction of the device were enabled by utilizing segments that were moved by piezo electric actuators. The Piezo electric actuator uses the energy generated from the P.V. panel and converts it to mechanical energy which enables the rotation of the device.

To find the angle for rotation a simulation was made to find the angle at which the P.V. panel produces the most energy and the angle at which the shading device reduces the load on the heating or cooling device. The device is designed to track the change in the sun's altitude as this rotation produces the most energy for a P.V. panel and a shading device. The device responds to the change in altitude four times a year as this corresponds to the seasons to which the shading device rotates.

There were two simulations made for the energy saved by the P.V. integrated shading device. The first simulation was for the Netherlands, factoring the energy saved by the shading device and the energy losses by the mechanical parts the device produces 196kW/ year and reduces the heating and cooling load by 16%. In Abu Dhabi, the same device produces 777kW/ year which reduces the cooling load by 15%.
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A model for feed-forward optimization of building envelopes as to solar energy potential

Master thesis (2021) - A.K. FLOROU, P. Nourian, E. Brembilla, S. Azadi
The typical solar energy potential simulation workflows used in the AEC industry require an abundance of information regarding the detailed geometry and materialization of the design. These requisites render them incompatible with early-stage design decision-making pertaining to form-finding. By performing solar energy potential simulations at the pre-conceptual design phase, the necessary time for later-stage environmental assessments and design improvements is reduced considerably, while building designs with high performance but low environmental footprint are attained.

This research proposes a computational framework to navigate voxel-based morphologies of building envelopes in a performative design space. It investigates a generative workflow through an embedded multi-criteria optimization of solar-related indicators, which are mapped in a solar energy potential field. The formulation of this field consists of an a priori assessment of the solar energy potential in every discrete volumetric unit (voxel) and a vectorized description of the interdependency of them. The astronomical size of this solution space renders the use of metaheuristic methods more appropriate. More specifically, a subtractive strategy that incorporates an MCDA approach is being applied in order to reach user-defined optimization targets. The novelty and potential of the proposed methodology lies in streamlining the early decision making process for designers and architects and expanding the morphological possibilities. Through this framework, the performative design space is effectively navigated and nearly optimal solutions are generated, to act as suggestive mechanisms for informed architectural decisions.
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