Towards nearly zero energy buildings in Panama through low-consumption techniques: A numerical study

Mora, Dafni; Araúz, Jesús; Austin, Miguel Chen

doi:10.1063/1.5138847

Cited by 10 publications

(10 citation statements)

References 12 publications

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“…On the other hand, to achieve NZEB, the improved U-values differed significantly in studies based in countries with an Af climate, such as Brazil [39] and Panama [54] (Table 3), despite the same type of building being analyzed (Table 1). An agreement is encountered under the same type of climate, Aw [43,55], for the improved U-values in walls and windows, despite different building types, to achieve nZEB/NZEB (Table 3). No further analysis can be performed due to a lack of information.…”

Section: Envelope Transmittance Values According To Climatementioning

confidence: 63%

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Review of Zero Energy Building Concept-Definition and Developments in Latin America: A Framework Definition for Application in Panama

2021

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In recent decades, European countries have developed concepts, definitions, and construction technologies for Zero Energy Building (ZEB) that are effective and correspond to their specific climates. Latin American countries are still trying to find adequate solutions which respond to the local climatic, cultural, social, technical, and economic context. As such, this paper aims to establish the basis of the minimum energy efficiency and the renewable threshold for the definition of ZEB in order to better understand the application in Panama, based on assessing the energy regulations implemented in Panama. To achieve this aim, a review concentrated on the concept-definition and implementation adopted by Latin American countries is presented first before the paper converges into defining a framework for application in Panama. Finally, a case-study-based theoretical framework proposing a ZEB definition for Panama is discussed. The results of this study showed a net primary energy balance, of which the range falls into a plus energy building definition, indicating that all of the cases studied could supply their electricity needs using Photovoltaic generation. All dwellings studied have the potential to become a plus energy building, depending on the available roof surface area. Finally, a strengths, weaknesses, opportunities and threats analysis is presented in order to assess and support the introduction of such a ZEB definition and framework.

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Section: Envelope Transmittance Values According To Climatementioning

confidence: 63%

“…This tendency follows the ZEB philosophy, as shown in Figure 7. In fact, it can be observed that NZEB can be reached by applying only passive solutions, regardless of the type of climate (Figure 8a) [35,39,40,42,[45][46][47]51,54,55].…”

Section: Zeb Type and Energy Saving Strategies According To Climatementioning

confidence: 99%

Review of Zero Energy Building Concept-Definition and Developments in Latin America: A Framework Definition for Application in Panama

2021

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“…Rather well-established solutions have been implemented in tropical regions even before such knowledge was formally defined in the literature. Such knowledge, far from being related to any pinnacle strategy, is based on bioclimatic architecture definitions [ 58 , 59 , 60 , 61 , 62 ]. Identification of Biological Analogies and Principles …”

Section: Implementation Of the Proposed Methodology And Resultsmentioning

confidence: 99%

Inspection of Biomimicry Approaches as an Alternative to Address Climate-Related Energy Building Challenges: A Framework for Application in Panama

et al. 2020

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In the Panama context, energy consumption in the building sector is mostly related to the conditioning of indoor spaces for cooling and lighting. Different nature strategies can be mimic to strongly impact these two aspects in the building sector, such as the ones presented here. A comprehensive analysis regarding literature related to biomimicry-based approaches destined to improve buildings designs is presented here. This analysis is driven by the increasing energy regulations demands to meet future local goals and to propose a framework for applications in Panama. Such biomimicry-based approaches have been further analyzed and evaluated to propose the incorporation of organism-based design for three of the most climate types found in Panama. Consequently, a SWOT analysis helped realized the potential that biomimicry-based approaches might have in improving the odds of in meeting the local and global regulations demands. The need for multidisciplinary collaboration to accomplish biomimicry-based-designed buildings, brings an increment in the competitivity regarding more trained human-assets, widening the standard-construction-sector thinking. Finally, the analysis presented here can serve as the foundation for further technical assessment, via numerical and experimental means.

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“…Promising results encountered higher energy savings around 17%-80%, when having a fully automatic system, especially with a model predictive control algorithm [9]. In the case of tropical climate, a study showed no significant reduction when implementing night free cooling strategy (about 0.5%); this was attributed to the small difference between the indoor and outdoor air temperatures [10].…”

Section: The Role Of Natural Ventilationmentioning

confidence: 99%

A review of airflow rate estimation techniques for natural ventilation in buildings

Austin

Mora

Bruneau³

et al. 2021

Rev.Fac.Ing.Univ.Antioquia

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As natural ventilation involves local and global interactions, the estimation of these interactions can be performed by many approaches. Such approaches, rather more experimental and numerical than analytical, often require a great deal of instrumentation and equipment, which results in higher demands on project budget and funding. The present work is devoted to comprehending the natural ventilation concept, and to assess the existing experimental techniques already implemented for past researchers in the estimation of the ventilation airflow rate due to the wind and thermal buoyancy effects. A brief review of modeling techniques is also presented. This will provide a strong theoretical grasp of the natural ventilation process as part of the main elements in the thermal behavior of buildings. Ultimately, these bases are intended to help choose the most suitable techniques to estimate the natural ventilation airflow rate. The adequate benefit-to-budget technique appears to be the airtightness tests (blower door tests), since empirical Equations relating the airflow directly to the pressure difference in the building for both cases: infiltrations (openings closed) and openings opened, can be obtained. Also, the location of the leakages can be identified without complications, and this technique has the potential to estimate in situ the airflow capacity and friction characteristics of the openings.

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Towards nearly zero energy buildings in Panama through low-consumption techniques: A numerical study

Cited by 10 publications

References 12 publications

Review of Zero Energy Building Concept-Definition and Developments in Latin America: A Framework Definition for Application in Panama

Review of Zero Energy Building Concept-Definition and Developments in Latin America: A Framework Definition for Application in Panama

Inspection of Biomimicry Approaches as an Alternative to Address Climate-Related Energy Building Challenges: A Framework for Application in Panama

A review of airflow rate estimation techniques for natural ventilation in buildings

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