Generating proper building envelopes for photovoltaics integration with shape grammar theory

Youssef, Amr Mamdoh Ali; Zhai, Zhiqiang; Reffat, Rabee M.

doi:10.1016/j.enbuild.2017.09.077

Cited by 34 publications

(13 citation statements)

References 13 publications

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“…In the literature there are some novel and recent techniques, which can be found in Ref. [136] • There were only three holistic approaches [113][114][115] that focussed on different building topics as part of the same optimisation problem, such as the skin and layout. These approaches presented promising potentials, while they integrated different performance objectives and minimised the design complexity.…”

Section: Discussionmentioning

confidence: 99%

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Performative computational architecture using swarm and evolutionary optimisation: A review

Ekici

Cubukcuoglu

Turrin

et al. 2019

Building and Environment

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This study presents a systematic review and summary of performative computational architecture using swarm and evolutionary optimisation. The taxonomy for one hundred types of studies is presented herein that includes different sub-categories of performative computational architecture, such as sustainability, cost, functionality, and structure. Specifically, energy, daylight, solar radiation, environmental impact, thermal comfort, life-cycle cost, initial and global costs, energy use cost, space allocation, logistics, structural assessment, and holistic design approaches, are investigated by considering their corresponding performance aspects. The main findings, including optimisation and all the types of parameters, are presented by focussing on different aspects of buildings. In addition, usage of form-finding parameters of all reviewed studies and the distributions for each performance objectives are also presented. Moreover, usage of swarm and evolutionary optimisation algorithms in reviewed studies is summarised. Trends in publications, published years, problem scales, and building functions, are examined. Finally, future prospects are highlighted by focussing on different aspects of performative computational architecture in accordance to the evidence collected based on the review process.

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Section: Discussionmentioning

confidence: 99%

“…Based on the building shape, Youssef, Zhai, and Reffat [113], optimised the energy consumption of office buildings using GA in two steps. First, authors optimised the shape of the building using shape grammar design rules.…”

Section: Holistic Sustainabilitymentioning

confidence: 99%

Performative computational architecture using swarm and evolutionary optimisation: A review

Ekici

Cubukcuoglu

Turrin

et al. 2019

Building and Environment

View full text Add to dashboard Cite

show abstract

“…genetic algorithm) to maximise some parameters (i.e. annual production or profitability of the installation) [30][31][32][33]. In terms of optimisation values, these methods present a highaccuracy level, but they are not adapted to BIPV application on existing façades (where orientation and context are fixed) because the results can lead to an unrealistic repartition of the active surfaces from an operational point of view [24,25].…”

Section: Accepted Manuscript -4 -mentioning

confidence: 99%

“…Some interesting studies focus on the optimisation of the building shape through shape grammars [32] and using genetic algorithms to maximise the BIPV production in new buildings [33,34]. The application of this kind of approach is however not relevant in the renovation of buildings.…”

Section: Accepted Manuscript -4 -mentioning

confidence: 99%

Active surfaces selection method for building-integrated photovoltaics (BIPV) in renovation projects based on self-consumption and self-sufficiency

Moreno

Lufkin

Rey

2019

Energy and Buildings

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In light of the Paris Agreement's objectives and the related European and Swiss goals of decarbonising the built environment, the importance, relevance, and potential benefits of integrating Building-Integrated Photovoltaic (BIPV) within building renovation processes are acknowledged. Functioning both as envelope material and on-site electricity generator, BIPV can simultaneously reduce the use of fossil fuels and greenhouse gas emissions. Motivated by the current barriers and misconceptions that withhold a widespread integration of BIPV, particularly regarding financial implications and solar exposure levels that are believed to be unfavourable, this paper aims at bringing new knowledge and a rigorous and adaptable method to inform decision-making and promote the use of BIPV in urban renewal processes. Focusing on the architectural design, we here present a methodology to select active (BIPV) surfaces during the retrofitting process based on a trade-off between the self-consumption (SC) and self-sufficiency (SS) of a building. The approach consists in iteratively identifying surfaces that achieve a varying annual irradiation value (threshold). It also includes the evaluation of the effect of electricity storage systems. The methodology and the results of its application are presented through the comparison of two case studies in Neuchâtel (Switzerland). The outcomes of this new approach for addressing building renovation projects in the urban context can help architects, designers and engineers to better size the installation and the repartition of active surfaces in the renovated thermal envelope. Results show that it is important to take into account a larger range of irradiation levels to choose the active surfaces, especially in high-rise buildings with a greater proportion of façade than roof. In such cases, the irradiation threshold can vary between 600 and 800 kWh/m 2 •year depending on the strategy adopted in terms of Heating, Ventilation and Airconditioning

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“…The use of building energy simulations (BES) is a common way to quantify the energy generation, consumption, efficiency and losses in buildings [5]. Research in the domain of BES focuses in energy self-sufficient buildings, optimized energy management systems and energy storage control schemes, often incorporating PV systems into the building envelope [6], [7], [8], [9], [10]. Two of the most popular BES tools are TRNSYS [11], and EnergyPlus [12].…”

Section: Background and Motivationmentioning

confidence: 99%

Modeling and validation of a DC/DC power converter for building energy simulations: Application to BIPV systems

et al. 2019

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European legislation on building performance and energy efficiency pushes the shift towards minimizing the environmental footprint of buildings. Buildingintegrated photovoltaics (BIPV) is a promising technology that can accelerate the transition to energy-neutral buildings. Quantifying the potential of BIPV is crucial and one means of obtaining those results is through simulation. The state-of-the-art tools offer either thermal or electrical specialization; in particular, balance of system components (BOS) such as power converters have not been studied in detail within the building simulations BIPV domain. In this paper, a multi-physics model of a BIPV integrated DC/DC converter is developed in the Modelica language, taking into account the thermal and electrical couplings inherent to power electronic systems. The model has been validated using representative outdoor BIPV measurements and a DC/DC converter prototype. It has been found that the proposed model provides reasonable accuracy and outperforms an equivalent power conditioning model in TRNSYS. To demonstrate the model's functionality, two case studies are performed. First, the temperature-dependence of the converter's efficiency and losses is quantified and analyzed and, second, the prominent contributors to the converter losses are identified and discussed.

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Generating proper building envelopes for photovoltaics integration with shape grammar theory

Cited by 34 publications

References 13 publications

Performative computational architecture using swarm and evolutionary optimisation: A review

Performative computational architecture using swarm and evolutionary optimisation: A review

Active surfaces selection method for building-integrated photovoltaics (BIPV) in renovation projects based on self-consumption and self-sufficiency

Modeling and validation of a DC/DC power converter for building energy simulations: Application to BIPV systems

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