An internal assessment of the thermal comfort and daylighting conditions of a naturally ventilated building with an active glazed facade in a temperate climate

Altan, Haşim; Ward, Ian; Mohelníková, Jitka; Vajkay, František

doi:10.1016/j.enbuild.2008.07.009

Cited by 19 publications

(7 citation statements)

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“…In fact, with the aim of analyzing the thermal and lighting performance of a building located in Sheffield, England, luminance, illuminance, and temperature measurements were performed during different seasons. Overheating and glare were detected in working spaces [25]. However, this study lacks of measurements of transmitted solar radiation through the transparent sections of the faç ade, thus, overheating and glare problems cannot be correlated, quantitatively, to the magnitude of solar heat gains and daylighting transmission.…”

Section: Introductionmentioning

confidence: 99%

Solar and Lighting Transmission through Complex Fenestration Systems of Office Buildings in a Warm and Dry Climate of Chile

et al. 2014

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Overheating, glare, and high-energy demand are recurrent problems in office buildings in Santiago, Chile (33°27'S; 70°42'W) during cooling periods. Santiago climate is warm and dry, with high solar radiation and temperature during most of the year. The objective of this paper is to evaluate the thermal and daylighting performance of office buildings transparent faç ades composed of three different complex fenestration systems (CFS). Each CFS contains a different external shading device (ESD): (1) external roller, (2) vertical undulated and perforated screens, and (3) tilted undulated and perforated screens. The study was carried out by in situ monitoring in three office buildings in Santiago, Chile. Buildings were selected from a database of 103 buildings, representing those constructed between 2005 and 2011 in the city. The monitoring consisted of measuring the short wave solar and daylighting transmission through fenestration systemsby means of pyranometers and luxometers, respectively. This paper shows measurements that were carried out during summer period. A good performance is observed in a building with the external roller system. This system-applied to a northwest faç ade-shows a regular and high solar and daylighting control of incoming solar radiation. OPEN ACCESSSustainability 2014, 6 2787The other two ESD systems evidence a general good performance. However, some deficiencies at certain times of the day were detected, suggesting a non-appropriated design.

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Section: Introductionmentioning

confidence: 99%

Solar and Lighting Transmission through Complex Fenestration Systems of Office Buildings in a Warm and Dry Climate of Chile

et al. 2014

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“…Ecotect software can be considered accurate as it has been used to obtain the illuminance level and DF on a working plane 85 cm above the floor level, simulated for summer overcast and sunny sky conditions. 29,32–34…”

Section: Methodsmentioning

confidence: 99%

Glazing daylighting performance and Trombe wall thermal performance of a modular façade system in four different Portuguese cities

Sacht

Bragança

Almeida

et al. 2014

Indoor and Built Environment

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This paper reports on a new façade system that uses passive solutions in the search for energy efficiency. The differentials are the versatility and flexibility of the modules, which are important advantages of the system. The thermal performance of Trombe walls and glazings and the daylighting performance of glazing were the key aspects analyzed in the results. Computational simulations were accomplished for the thermal performance of different arrangements of the modules with DesignBuilder software. The glazing daylighting performance was studied by means of Ecotect and Desktop Radiance programs and compared with the transmittance curves of glazings. Occupancy profile and internal gains were fixed according to the Portuguese reality for both studies. The main characteristics considered in this research were the use of two double glazings, four different climates in Portugal and one and two Trombe walls in the façade. The results show an important reduction in the energy consumption with the use of Trombe walls and double self-cleaning glazing in the façade, which also presented better daylighting performance.

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“…Studies have been conducted on the mutual influence of operational characteristics of windows. They are associated primarily, with the study of the relationship of thermal and light characteristics of windows [34,35], of the optimal ratio of thermal characteristics between windows and walls [36][37][38], and also of the influence of size of windows and orientation for heat loss [39][40][41].…”

Section: Reviewing Modern Research To Find the Optimal Window Design mentioning

confidence: 99%

“…The analysis of the works showed that among the significant research results (for this work) we can distinguish the following: -constructive solution of the windows should be selected taking into account the visual comfort of the premises (no glare). At the same time, the use of solar protection will contribute to the energy efficiency of the building, which reduces energy costs (in comparison with the use of air conditioning systems and the use of artificial lighting) [17,18,34,35]; -orientation and thermal parameters of windows should be assigned not only from the conditions of energy efficiency [38], but also to ensure a comfortable temperature near the windows in winter and summer [22,39]; -in order to improve energy efficiency (reduce air conditioning costs), the choice of glazing design (including the type of glass used -low-emission, sunscreen) should be made taking into account the reflectivity of the facades [26]; -overall dimensions (including the height of the window sill) should be selected taking into account the facade orientation and climatic conditions of construction [40]. The increase in the size of the windows on the northern facades does not have a significant impact on heat loss, but significantly increases the day light [41]; -for cold climatic conditions, the use of insulation glass units with the low-emission glass (with a high value of the solar factor) on the southern facades contribute to energy efficiency of buildings [42], in the southern regions it is preferable to use glazing with a low solar factor [43]; -thermal characteristics of the windows have a greater impact on energy costs in winter, than on cooling in summer [30]; -the target to search for optimal window designs should take into account the mode of building operation (the load on heating and cooling) and climatic conditions (hours of summer/winter discomfort) [15]; At the same time, these studies are not fragmented and are considered, as a rule, for specific construction conditions.…”

Section: The Concept Of a New Approach To Design Windowsmentioning

confidence: 99%

Conception of a complex window design method

et al. 2019

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Windows are an essential part of almost every civil building. The existing approach for designing windows is based on ensuring minimum requirements to provide natural lighting functions, thermal protection, etc. This approach does not take into account the interrelationship of certain technical characteristics of windows (for example, heat and lighting characteristics). This leads to the appearance of typical problems at the stage of operating the building (insufficient day light, poor ventilation, etc.). In this work, an analysis of functional and technical requirements of windows of civil buildings was conducted. The review of modern researches of optimal window designs and interrelation of certain technical characteristics of window between themselves was conducted. On the basis of this analysis, the concept of a new complex window design method was proposed. This method is based on the fact that windows are both bearing and enclosing elements of the building. The use of this method will create the standard design solutions of windows for civil buildings of different functional purposes and different climatic areas of construction.

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An internal assessment of the thermal comfort and daylighting conditions of a naturally ventilated building with an active glazed facade in a temperate climate

Cited by 19 publications

References 1 publication

Solar and Lighting Transmission through Complex Fenestration Systems of Office Buildings in a Warm and Dry Climate of Chile

Solar and Lighting Transmission through Complex Fenestration Systems of Office Buildings in a Warm and Dry Climate of Chile

Glazing daylighting performance and Trombe wall thermal performance of a modular façade system in four different Portuguese cities

Conception of a complex window design method

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