Effect of louver shading devices on building energy requirements

Palmero-Marrero, Ana I.; Oliveira, Armando C.

doi:10.1016/j.apenergy.2009.11.020

Cited by 206 publications

(76 citation statements)

References 10 publications

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“…It is increasingly common to find buildings with a large glass area, which implies an increase in heat load that must be supported by air conditioning systems [15]. Palmero-Marrero et al [15] have presented a general study on the effect of louver shading devices applied to different façades of a building, at different latitudes.…”

Section: Introductionmentioning

confidence: 99%

“…There are different systems that are able to intercept direct radiation, such as overhangs, venetian blinds, external roller shades, etc., and their effects have been studied [15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…Palmero-Marrero et al [15] have presented a general study on the effect of louver shading devices applied to different façades of a building, at different latitudes. Heating and cooling energy consumption was quantified for various types of windows and degrees of shading at different locations throughout the building.…”

Section: Introductionmentioning

confidence: 99%

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Modeling and Experimental Validation of a Low-Cost Radiation Sensor Based on the Photovoltaic Effect for Building Applications

et al. 2016

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Abstract:The energy consumed to cool buildings is very elevated and solar gains represent a high percentage of these cooling loads. To minimize the thermal load it is necessary to control external shading systems. This control requires continuous measurement of solar radiation in different locations of the building. However, for such applications the use of conventional irradiance sensors increases the cost and reduces the profitability of the installation. This paper is focused on the development, modeling, and experimental validation of low cost irradiation sensors based on photovoltaic effect in order to reduce the costs of dynamic external shading devices and to improve the profitability of the system. With this proposal, firstly, small commercial photovoltaic cells have been adapted for use as an irradiation measurement device. Subsequently, quasi-stationary and continuous experimental measurements of these silicon cells, facing south and installed horizontally, have been carried out in Jaén (Spain) in 2009 and 2010. Finally, a nonlinear multiparameter function has been developed to evaluate the irradiance using the electric current generated by the cell, cell temperature, ambient temperature, and absolute humidity. A favorable agreement between the model predictions and experimental data has been observed with a coefficient of determination around 0.996 for all cells.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling and Experimental Validation of a Low-Cost Radiation Sensor Based on the Photovoltaic Effect for Building Applications

et al. 2016

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“…Palmero-Marrero and Oliveira [24] investigated the effects of louver shading devices applied to a building for different climates (Mexico, Cairo, Lisbon, Madrid, London), assessing their impact on indoor thermal conditions and energy demand compared to a building without shading devices.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Optimization of Louver-Driving Mechanism for Innovative Daylighting System in Deep-Plan Building

Mahdavinejad

Mohammadi²

2016

TOJDAC

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Optimum usage of daylight plays a an importatnt role in high-performance architecture and planning. Innovative daylighting systems in contemporary buildings can produce various benefits such as maximizing daylight penetration, optimizing visual comfort and reducing energy consumption. This paper is to develop a new louver-driving mechanism to optimize adoption of daylight in deep-plan building in order to meet requirements of high-performance architecture. Methodology of the paper emphasize on a experimental and quasiexperimental approach for examination of different types of louver-driving mechanism. The greater city of Tehran adopted as case study of the paper. The main goal is based on searching standards to better louver design in order to optimize energy demands by using this shading device. Thus 45 different cases with different louver width and angles and different louvers' distance from façade were chosen to analysis.Visual comfort and energy efficiency are analysed in an integrated approach. Moreover the combination of daylight and energy performances has always been an issue, as different software packages are needed to perform detailed calculations. A simplified method to overcome both issues using recent advances in software integration is explored here. All daylight, thermal and glare analysis were done in DIVA plug-in for Rhinoceros/Grasshopper which has ability to effectively calculate daylight metrics (using the Radiance/Daysim engine) and energy consumption (using the EnergyPlus engine). It can be concluded from experiments that generally, the various size of the louvers were not much different from each other and custom sizes can be selected according to the plan but any alteration in louver's angle and distance from façade were followed by changes in lighting and thermal load of room. In the case of the using fixed louver in design in Tehran's climate, distance between 0 and 13 centimeters and angle between 22.5 to 45 degrees are introduced as the optimum mode.Keywords: optimization, louver-driving mechanism, high-performance architecture, energy efficient architecture, innovative daylighting system, deep-plan building. SENTEZ VE OPTİMİZASYON DERİN PLAN BİNASI YENİLİKÇİ GÜN IŞIĞI SİSTEMİ MEKANİZMASI PANJUR-SÜRÜŞ ÖZGün ışığının optimum kullanımı yüksek performanslı mimari ve planlama bir bir importatnt rol oynar. çağdaş binalarda Yenilikçi günışığı sistemleri gibi, gün ışığı en iyi seviyeye görsel konfor optimize ve enerji tüketimini azaltarak gibi çeşitli faydalar üretebilir. Bu yazıda, yüksek performanslı mimari gereksinimlerini karşılamak amacıyla derin plan binada gün ışığı kabulünü optimize etmek için yeni bir

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“…When mounting a shading device, environmental factors such as the location of the building and the angle of incoming sunlight should be considered to achieve optimal shading effects. Both internal and external shading devices save energy by effectively preventing heat from coming indoors, and lowering the indoor heat load; thus, energy consumption caused by air conditioning is reduced, which, in turn, reduces waste, cuts operational costs, and delivers positive impacts on both health and the environment (Cho et al 1995;Datta 2001;Florides et al 2000;Palmero-Marrero, Oliveira 2010;Yener 1998). However, patent data analysis has never been applied to explore patenting activities and technology development with respect to shading devices.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Technological Trends in Shading Devices Through Patent Analysis

Perng

Huang

2015

Journal of Civil Engineering and Management

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Abstract. In recent years, the issues of energy use reduction and sustainable development have garnered considerable interest. This study has conducted a patent search using United States Patent and Trademarks Office (USPTO) data to investigate technological trends in sustainable development, using shading devices for buildings as an example, because they have the potential to save energy by effectively preventing heat from coming indoors, and lowering the indoor heat load. The purpose of this study was to explore the status of shading devices and analyze patent activity, major assignees, assignee countries, core technology fields, patent citations, potential competitors of patent assignees, and developmental path based on patent analysis using a database that spanned the years from 1974 to 2011. The results provide a clear picture of, and evidence for, the pattern of shading device technology; they suggest that automatic sensing shading devices are the focus of current technological developments, thus saving time and costs in future research development.

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Effect of louver shading devices on building energy requirements

Cited by 206 publications

References 10 publications

Modeling and Experimental Validation of a Low-Cost Radiation Sensor Based on the Photovoltaic Effect for Building Applications

Modeling and Experimental Validation of a Low-Cost Radiation Sensor Based on the Photovoltaic Effect for Building Applications

Synthesis and Optimization of Louver-Driving Mechanism for Innovative Daylighting System in Deep-Plan Building

Investigation of Technological Trends in Shading Devices Through Patent Analysis

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