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Jusselme Thomas

Jusselme Thomas

Professeur HES associé


MAIN SKILLS

Efficience énergétique

Building performance

construction bas carbone

Energies renouvelables

Physique du bâtiment

Energie dans le bâtiment

Energie solaire passive


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Professeur HES associé

Phone: +41 26 429 66 17

Desktop: BF_0_40A

Haute école d'ingénierie et d'architecture de Fribourg
Boulevard de Pérolles 80, 1700 Fribourg, CH
Haute école d'ingénierie et d'architecture de Fribourg

Institute
Energy - Institut de recherche appliquée en systèmes énergétiques

BSc HES-SO en Génie mécanique - Haute école d'ingénierie et d'architecture de Fribourg

  • Thermique du bâtiment
  • Analyse de cycle de vie

Ongoing

Projet SLL 2020

Role: Collaborator

Requérant(e)s: FR - EIA - Institut iTEC

Financement: HES-SO Rectorat; SLL HEIA-FR

Description du projet : Préparation d'un projet SLL dans le cadre du call 2020

Research team within HES-SO: Hennebert Jean, Jusselme Thomas, Devaux Mylène, Schwab Stefanie

Partenaires académiques: FR - EIA - Institut iTEC

Durée du projet: 11.10.2019 - 31.12.2020

Statut: Ongoing




2020

Carbon budgets for buildings : harmonising temporal, spatial and sectoral dimensions ArODES Scientifique

Habert Guillaume, Röck Martin, Steininger Karl, Lupisek Antonin, Birgisdottir Harpa, Desing Harald, Chandrakumar Chanjief, Pittau Francesco, Passer Alexander, Rovers Ronald, Slavkovic Katarina, Hollberg Alexander, Hoxha Endrit, Jusselme Thomas, Nault Emilie, Allacker Karen, Lützkendorf Thomas

Buildings and Cities, 2020, vol. 1, no. 1, pp. 429-452

Link to the publication

Summary:

Target values for creating carbon budgets for buildings are important for developing climate-neutral building stocks. A lack of clarity currently exists for defining carbon budgets for buildings and what constitutes a unit of assessment—particularly the distinction between production- and consumption-based accounting. These different perspectives on the system and the function that is assessed hinder a clear and commonly agreed definition of ‘carbon budgets’ for building construction and operation. This paper explores the processes for establishing a carbon budget for residential and non-residential buildings. A detailed review of current approaches to budget allocation is presented. The temporal and spatial scales of evaluation are considered as well as the distribution rules for sharing the budget between parties or activities. This analysis highlights the crucial need to define the temporal scale, the roles of buildings as physical artefacts and their economic activities. A framework is proposed to accommodate these different perspectives and spatio-temporal scales towards harmonised and comparable cross-sectoral budget definitions. Policy relevance : The potential to develop, implement and monitor greenhouse gas-related policies and strategies for buildings will depend on the provision of clear targets. Based on global limits, a carbon budget can establish system boundaries and scalable targets. An operational framework is presented that clarifies greenhouse gas targets for buildings in the different parts of the world that is adaptable to the context and circumstances of a particular place. A carbon budget can enable national regulators to set feasible and legally binding requirements. This will assist the many different stakeholders responsible for decisions on buildings to coordinate and incorporate their specific responsibility at one specific level or scale of activity to ensure overall compliance. Therefore, determining a task specific carbon budget requires an appropriate management of the global carbon budget to ensure that specific budgets overlap, but that the sum of them is equal to the available global budget without double-counting.




2020

Analysis and visualisation of decision paths towards reaching environmental impact targets at early-design stage ArODES Conference

Thomas Jusselme

Proceedings of 35th Passive and Low Energy Architecture PLEA 2020 Conference, 1st-3rd September 2020, Coruña, Spain

Link to the publication

Summary:

Environmental impact objectives are commonly found in building performance labels and rating schemes. Anticipating a building’s impact from the conceptual design stage and identifying decisions that do not compromise its chances of reaching these targets is therefore crucial. Yet, few methods and tools are able to provide tangible decision support through a context-specific and early-stage-oriented approach. This paper proposes a workflow to do so based on a generative approach and interactive decision trees. Illustrated on a case study, the approach consists in generating building scenarios by varying parameters not yet fixed at the early stage, including geometrical (e.g. building shape and height), architectural (e.g. façade opening ratio) and technical (e.g. heating system) parameters. The series of scenarios are evaluated in terms of their greenhouse gas (GHG) emissions over their life cycle (including construction and operation), as well as from building-induced mobility. The effects of filtering this database according to a given impact target are explored using a classification algorithm that produces a decision tree showing the proportion of target-complying and noncomplying scenarios, as well as the (un)favourable decision pathways. Stakeholders of the planning and design process can therefore get insights into the implications of a given string of decisions.


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