Optimizing urban morphology: Evolutionary design and multi-objective optimization of thermal comfort and energy performance-based city forms for microclimate adaptation

Energy and Buildings, Год журнала: 2025, Номер unknown, С. 115750 - 115750

Опубликована: Апрель 1, 2025

Язык: Английский

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Multi‐Objective Optimization of Illuminance, Heating, and Cooling Setpoints in Office Buildings Using a Fuzzy‐Based Approach

International Journal of Energy Research, Год журнала: 2025, Номер 2025(1)

Опубликована: Янв. 1, 2025

This article introduces a novel optimization approach grounded in fuzzy logic, which transforms the multi‐objective problem into single‐objective one. Instead of providing Pareto front, this method delivers final optimal point based on predefined design priorities. The proposed methodology is applied to optimize illuminance, heating, and cooling setpoints an office building across six cities with diverse climates assess its performance under various conditions. these represents contribution smart design. Compared NSGA‐II method, newly introduced exhibits simplicity achieves 50% reduction computational time. leverages user experiences formulating rules, yielding more solutions compared NSGA‐II. combines neural network, genetic algorithm create efficient intelligent framework for fast accurate energy‐related problems.

Язык: Английский

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Four-objective optimization of historic building renovation considering climate change: a trade-off in energy, economy, environment, and thermal comfort

Journal of Building Engineering, Год журнала: 2025, Номер unknown, С. 113017 - 113017

Опубликована: Июнь 1, 2025

Язык: Английский

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Optimal Design of Building Envelope Towards Life Cycle Performance: Impact of Considering Dynamic Grid Emission Factors

Опубликована: Янв. 1, 2024

Building-related carbon emissions in the construction and operation stages account for more than one-third of global energy-related emissions. Optimizing during early design stage is an effective way to reduce building Current studies adopt a constant grid emission factor (GEF) assess environmental impacts buildings while ignoring dynamic changes future electricity mix. This study aims explore impact considering variations GEF on optimal envelope. The conducted three steps. First, dynamically changing GEFs are predicted under mix based scenario analysis. Second, multi-objective optimization framework established minimize life cycle (LCCE) optimizing its costs (LCC) indoor discomfort hours (IDH). Finally, proposed applied prototype office Shanghai, comparative analysis schemes between static two scenarios. result reveals that will lead overestimating operational by 49.0%-64.8%, which turn over-insulated envelope (i.e., additional material consumption). In addition, compared scenario, consideration results 38.7%-51.6% reduction LCCE, 5.2%-6.1% LCC, 5.3%-9.5% increase IDH solutions. research illustrates importance identifying parameters can help decision-makers reasonably choose early-stage design.

Язык: Английский

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Energy Losses or Savings Due to Air Infiltration and Envelope Sealing Costs in the Passivhaus Standard: A Review on the Mediterranean Coast

Buildings, Год журнала: 2024, Номер 14(7), С. 2158 - 2158

Опубликована: Июль 13, 2024

To obtain the Passivhaus Certificate or Standard (PHS), requirements regarding building envelope air tightness must be met: according to n50 parameter, at a pressure of 50 Pa, leakage below 0.6 changes per hour (ACH). This condition is verified by following blower door test protocol and regulated ISO 9972 standard, UNE-EN-13829. Some construction techniques make it easier comply with these regulations, in most cases, joints material sealed complex way, both on façades roofs ground contact points. Performing rigorous quality control processes during phase allows achieving value ACH obtaining PHS certification. Yet, can increase substantially passage time: as windows doors are used, opened, closed; materials expand; humidity; etc. could result significant energy consumption increases losing when selling house later point time. It therefore important carefully supervise its execution. In this study, we focused located Sitges (Barcelona). The was measured four phases, together sealing service ducts. performed each phase, obtained decreased execution costs were also determined, investment amortisation rates based consequent annual demand reductions. Air infiltration dropped 43.81%, final resulting 0.59 ACH. However, costs—EUR 3827—were high compared savings made, period rose 15- 30-year range. conclude, airtightness improvements necessary cold continental climates but not applicable Spanish Mediterranean coast.

Язык: Английский

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Analysis of the Impact of Funding Policies for the Energy Refurbishment of Buildings Using Dynamic Simulations

Applied Sciences, Год журнала: 2024, Номер 14(19), С. 8900 - 8900

Опубликована: Окт. 2, 2024

Dynamic simulations can accurately estimate the thermal demands for space heating and cooling in buildings, as well energy economic performance of specific refurbishment actions. This study aims to evaluate savings resulting from adoption particular measures applied a cluster residential condominium also considering some possible Italian funding policies. To this scope, dynamic simulation models several buildings with different features terms geometry, shape, thermo-physical properties are considered. The selected representative most common city Naples, Southern Italy. Two scenarios regarding penetration actions considered: “25% scenario”, where 25% Naples municipality adopt measures, “100% all such results simulations, reported over time periods, compare economic, energy, environmental benefits measures. evaluates replacement conventional natural gas-fired boilers condensing boilers, use insulation on external walls buildings. primary demand decreased by 28% when proposed were implemented municipality.

Язык: Английский

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Identification of climate adaptive multivariate optimization methodologies for the design of NZEB in India: a holistic review

Frontiers in Energy Efficiency, Год журнала: 2024, Номер 2

Опубликована: Сен. 13, 2024

Net zero energy building (NZEB) is an efficient approach to boost the world’s sustainable development and climate mitigation. This paper provides a comprehensive review of multi-objective optimization (MOO)-based case studies NZEB design. The critical analysis focuses on “3Ps” criteria sustainability, which encompass social, environmental, economic aspects protecting people, planet, profit. study identifies gaps in exploring based MOO techniques for decision-making regarding design India its requirements. Moreover, it demonstrates various passive strategies, energy-efficient technologies, renewable energy, their impact occupant comfort, model, life cycle. It presents global needs requirements NZEB, definitions different countries policies. suggests four-step methodological framework India. potential reliability algorithms, tools, simulation engines solve problems. presented here can aid designers design, refurbishment, renovation. this highlights future research direction challenges implementing proposed

Язык: Английский

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Robust retrofits for rural house envelope considering construction quality and occupant behavior uncertainties: A MOO-integrated Taguchi method

Energy and Buildings, Год журнала: 2024, Номер unknown, С. 114832 - 114832

Опубликована: Сен. 1, 2024

Язык: Английский

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Performance-oriented design of thermal-activated building envelope based on multi-objective optimization: Method and application

Energy and Buildings, Год журнала: 2024, Номер unknown, С. 115198 - 115198

Опубликована: Дек. 1, 2024

Язык: Английский

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