Thermal and visual comfort assessment of natural ventilated office buildings in Europe and North America

Costanzo, Vincenzo; Donn, Michael

doi:10.1016/j.enbuild.2017.02.003

Cited by 43 publications

(13 citation statements)

References 28 publications

(31 reference statements)

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“…An adequate practice of passive design involves several aspects of building design [18,19] such as the orientation of the main façades and windows, the choice of appropriate walls' materials, thermal insulation and Window-to-Wall Ratio (WWR), along with the design of shading devices and the implementation of natural ventilation techniques [20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Passive Design Strategies for Residential Buildings in Different Spanish Climate Zones

et al. 2019

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The Passive House (PH) concept is considered an efficient strategy to reduce energy consumption in the building sector, where most of the energy is used for heating and cooling applications. For this reason, energy efficiency measures are increasingly implemented in the residential sector, which is the main responsible for such a consumption. The need for professionals dealing with energy issues, and particularly for architects during the early stages of their architectural design, is crucial when considering energy efficient buildings. Therefore, architects involved in the design and construction stages have key roles in the process of enhancing energy efficiency in buildings. This research work explores the energy efficiency and optimized architectural design for residential buildings located in different climate zones in Spain, with an emphasis on Building Performance Simulation (BPS) as the key tool for architects and other professionals. According to a parametric analysis performed using Design Builder, the following optimal configurations are found for typical residential building projects: North-to-South orientation in all the five climate zones, a maximum shape factor of 0.48, external walls complying with the maximum U-value prescribed by Spanish Building Technical Code (0.35 Wm−2K−1) and a Window-to-Wall Ratio of no more than 20%. In terms of solar reflectance, it is found that the use of light colors is better in hotter climate zones A4, B4, and C4, whereas the best option is using darker colors in the colder climate zones D3 and E1. These measures help reaching the energy demand thresholds set by the Passivhaus Standard in all climate zones except for those located in climates C4, D3 and E1, for which further passive design measures are needed.

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Section: Introductionmentioning

confidence: 99%

Passive Design Strategies for Residential Buildings in Different Spanish Climate Zones

et al. 2019

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“…As shown in Table 1 and recently pointed out in a review paper from Toparlar et al [23], some authors started investigating different scales of analysis at the same time by coupling CFD tools with BES software in order to have a comprehensive understanding of the mass transfer phenomena. Majority of these works considered either the single building scale or idealized urban geometries, as in [24][25][26] where regular and staggered layouts of buildings surround the study one, while real urban morphologies are less common [27][28][29].…”

Section: Previous Studiesmentioning

confidence: 99%

Natural ventilation potential for residential buildings in a densely built-up and highly polluted environment. A case study

Costanzo

Yao

et al. 2019

Renewable Energy

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The application of Natural Ventilation (NV) as a measure to improve comfort conditions in transition and summer periods has been a topic of research on the spotlight for years. However, there is a lack of knowledge about how the combined effect of a dense urban layout with high pollutant concentrations may affect its potential. This paper addresses this gap by running detailed thermal simulations for a typical apartment flat located in the Yuzhong district of Chongqing city (China) using a holistic approach that makes use of: i) wind pressure coefficients on building facades from urban-scale CFD simulations, ii) hourly measured values of PM2.5 concentrations and weather variables and iii) indoor environment measurements for validation purposes. Scenario analysis revealed the average amount of air change rates achievable in a year varies from 8 to 15 ACH according to the windows orientation. These figures drop down to around 2 ACH when taking into account reduced windows opening time when outdoor PM2.5 concentrations are too high. The resulting natural ventilation potential of the case study decreases from 4234 hours when outdoor pollution is neglected to 2707 and 529 hours when considering the exposure thresholds set by the Chinese government and the WHO respectively.

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“…It is worth mentioning that by following the colors of the polygons in psychometric chart and match with that of the legend, the active and passive design strategies for the context can be determined. Additionally, based on Costanzo and Donn [53] approach for climate analysis, Table 1 has been adopted taking into account the annual averages of context climate characteristics including dry bulb temperature, relative humidity, global horizontal radiation, and wind speed, obtained from "epw" file (via climate consultant software). (Figure 3) shows that the outside dry bulb temperature in 18% of the year-round is between 0 to 21 °C.…”

Section: Context Climate Analysismentioning

confidence: 99%

A Model for External Walls Selection in Hot and Humid Climates

Boostani¹,

Hançer²

2018

Sustainability

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Literature review shows that, to date, no local based method has been developed for evaluation of optimal wall constructions in a hot and humid climate from architects’ point of view. Hence, this study aims at developing a multi factor optimization model (MFOM) for comparative selection of opaque wall construction in a hot and humid climate based on four main evaluation criterion namely energy efficiency, thermal comfort, moisture control, and cost efficiency. In order to indicate the application of the MFOM, a case study methodology was employed in Kish Island, Iran, which is characterized by a hot and humid climate. Both qualitative and quantitative research methods were employed in the research process including literature and field survey, computer simulation, thermal, moisture and economic analysis finalized with a simple multi attribute rating technique (SMART) grading the outputs for final assessment. According to the results, it can be deducted that the application of the MFOM has the potential to save cost and energy, improve the thermal quality of the indoor environment while predicting the possible construction hazards posed by condensation in hot and humid climates.

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Thermal and visual comfort assessment of natural ventilated office buildings in Europe and North America

Abstract: Highlights Natural ventilation viability and daylight use are explored for archetypical office buildings A new approach combining CFD, thermal and daylighting simulations has been developed A parametric analysis shows the connections between buildings and streets layouts

Cited by 43 publications

References 28 publications

Passive Design Strategies for Residential Buildings in Different Spanish Climate Zones

Passive Design Strategies for Residential Buildings in Different Spanish Climate Zones

Natural ventilation potential for residential buildings in a densely built-up and highly polluted environment. A case study

A Model for External Walls Selection in Hot and Humid Climates

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