The Thermal and Optical Behavior of Multilayer Low-E Solar Control Glass Surfaces

2017 ◽  
Vol 21 ◽  
pp. 506-513
Author(s):  
Mircea Horne Horneț ◽  
Raluca Dania Todor ◽  
Nicolae Fani Iordan ◽  
Cristian Năstac ◽  
Mircea Drăghici ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Thermal Performance ◽  
Heat Load ◽  
Building Materials ◽  
Natural Light ◽  
Solar Control ◽  
Glass Type ◽  
Materials Used ◽  
Glass Surfaces ◽  
Optical Behavior

Glass is one of the most popular and versatile building materials used today. One reason is because of its constantly improving solar and thermal performance. And one way this performance is achieved is through the use of passive and solar control low-e coatings. In architecture, the proper use of natural light can help reduce the energy consumption of a building (by reducing the heat load for heating - based on the superior of solar contributions, with an appropriate glass type and daylighting). This paper aims to present the thermal behavior of multilayer glass surfaces, low-e solar control and highlight differences to ordinary glass.

The Natural Primary Type of Energy-Saving in Changangtang Ancient Village in Huadu District, Guangzhou

2011 ◽  
Vol 224 ◽  
pp. 229-234
Author(s):  
Lin Lin ◽  
Bing Xun Ren ◽  
Dao Dian Lu
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Building Materials ◽  
River System ◽  
Building Structures ◽  
Natural Energy ◽  
Wall Materials ◽  
Materials Used ◽  
Primary Type ◽  
The Village

Taking Changangtang ancient village in Guangzhou as a case, this paper investigated the village location, the village layout, as well as building structures and building materials regarding their contributions to energy saving. It is found that the location and the surrounding of artificial river system form natural energy-saving environment, the overall layout of “comb pattern” complies to the local predominant wind direction in summer which go further in reducing the energy consumption in building, the courtyard enhances the ventilation and lighting, and the "Black brick with loam brick inside " form of material for wall, materials used for roofs, and dimensions of doors and windows all contribute to energy-saving.

scholarly journals Thermal performance of biosourced materials on Buildings: The case of Typha Australis

2020 ◽  
Vol 330 ◽  
pp. 01011
Author(s):  
Labouda Ba ◽  
Ikram El Abbassi ◽  
Cheikh S.E Kane ◽  
A-M Darcherif ◽  
Mamoudou Ndongo
Keyword(s):  
Energy Consumption ◽  
Thermal Performance ◽  
Fossil Fuels ◽  
Building Materials ◽  
Senegal River ◽  
Energy Needs ◽  
Typha Australis ◽  
The One ◽  
The Impact ◽  
Source Materials

Developing countries are facing population growth, which leads, on the one hand, to increased requirements for buildings and, on the other hand, to the depletion of fossil fuels along with exposure, of people living in those areas, to some detrimental consequences of climate change. Because of these factors, we propose approaches to control energy consumption in buildings. In some countries, the architectures adopted are not adequate to the environment and climate, resulting in discomfort in those buildings, in such circumstances, residents resort to the use of energy systems, such as heating, ventilation, and air conditioning, which leads to exorbitant electricity bills. Housing consumes 40% of the world's energy and is responsible for a third of greenhouse gas emissions. Optimizing energy needs in buildings is a solution to overcome these problems. For this purpose, there are solutions such as: the design of the building characterized by its shape and envelope, while using less energy-consuming equipment. For several years, the building materials sector has been developing with a particular focus on bio-source materials, which are generally materials with good thermal performance. In order to highlight the thermal performance of bio-source materials, we will study the case of Typha Australis which is a plant of the Typhaceae family that grows abundantly in an aquatic environment mainly in the Senegal River valley.Recent studies showed that Typha Australis has good thermal insulation properties. In order to determine the impact of Typha Australis on a building, a dynamic thermal simulation was carried out using the Trnsys software according to specific scenarios, the Typha was mixed with other local materials and used as a wall insulation panel, the result of the study shows that this fiber has allowed us to optimize energy consumption in a building. Mixing Typha with other materials (e. g. clay) is a promising solution for energy efficiency in buildings.

scholarly journals Specification of Glazings for Façades Based on Spectrophotometric Characterization of Transmittance

2021 ◽  
Vol 13 (10) ◽  
pp. 5437
Author(s):  
Helenice Maria Sacht ◽  
Luís Bragança ◽  
Manuela Almeida ◽  
Rosana Caram
Keyword(s):  
Heat Transfer ◽  
Optical Properties ◽  
Energy Consumption ◽  
Heat Exchange ◽  
Thermal Performance ◽  
Near Infrared ◽  
Temperate Climate ◽  
Solar Control ◽  
Indoor Spaces

The correct specification of glazings for façades can reduce the energy consumption in buildings. The heat exchange occurs through transparent surfaces and radiation reaches the building as light and heat. Therefore, glazings significantly contribute to the heat transfer between outdoor and indoor spaces and act directly on daylighting and thermal comfort. This paper reports on the spectrophotometric characterization of glazings transmittance for the study of components of a modular façade system and its suitability for the climate of Portugal (temperate climate). The study focused on results of spectrophotometric measurements of optical properties, specifically the transmittance of some types of glazings (solar control, self-cleaning, low-e, float, and extra-clear) and two types of double glazings. The results show the percentage of transmission to ultraviolet, visible, and near-infrared regions and its importance, which enabled the analysis of the glazing efficiency regarding daylighting and the correlation to thermal performance. Subsidies and indications for the specification and adequate uses of transparent surfaces have been presented and complemented the datasheets available from the manufactures.

scholarly journals APPLICATION OF LCA AND BIM METHODS IN THE ARCHITECTURE OF A SINGLE-FAMILY HOUSE IN THE CHANGING CLIMATE OF WESTERN POMERANIA

space&FORM ◽  
2020 ◽  
Vol 2020 (44) ◽  
pp. 45-70
Author(s):  
Piotr Gradziński ◽  
Keyword(s):  
Energy Consumption ◽  
Building Materials ◽  
Single Family ◽  
Materials Selection ◽  
Architectural Form ◽  
Changing Climate ◽  
Family Housing ◽  
Materials Used ◽  
Technical Solutions ◽  
Family House

The paper deals concerns the problem of energy optimization of single-family housing in Poland in Western Pomerania. The problem is considered because of the changing climate in the region and the consequences. This results in the search for changes in the architectural paradigm of singlefamily houses design and the use of appropriate technical solutions that minimize the environmental impact of these buildings. The problem of changes is considered in the category of building materials selection and the architectural form shape. In the analytical part, the following analyzes were carried out: in terms of the structures of the building in minimizing CO2 emissions and energy consumption of the building materials used and environmental factors (light, shade, wind) influencing energy consumption through the building's shape in the region.

scholarly journals Developing Double Walls System to Improve Building Energy Performances in Dry Tropical Climates

2021 ◽  
Vol 16 (3) ◽  
pp. 39
Author(s):  
Etienne MALBILA ◽  
Fati ZOMA ◽  
David Y. K. TOGUYENI ◽  
Chris-veenem Methushael COMPAORE ◽  
Dieudonné Joseph BATHIEBO
Keyword(s):  
Thermal Performance ◽  
Building Materials ◽  
Construction Materials ◽  
Building Energy ◽  
Energy Performance ◽  
Building Envelope ◽  
Public Preferences ◽  
The People ◽  
Materials Used ◽  
Tropical Climates

This paper deals with building envelope thermal performance through a comparative study of the use of two types of construction materials, such as CEB and cement blocks, in order to introduce the use of double walls in sustainable buildings' construction. The building envelope participates in providing thermal comfort to users and in the optimal management of building energy consumption. This study begins with a survey of public preferences for building materials used in Burkina Faso. The results indicate that 76% of the people surveyed opt for cement blocks over local materials.  Concerning the thermal and specific energy performance, three variants of building envelope were studied: CEB walls, cement blocks and the double-wall (CEB + Cement blocks). It appears that the CEB walls are more efficient than the cement block walls. The introduction of double envelopes leads to the thermal resistance of 357.37m².K/W and reduces the heat flow from 85.32% to 90.24% compared to the wall made with CEB and cement blocks. This approach, which consists in mixing construction materials for good thermal insulation, allows improving the envelope thermal performance and the overall building energy performance.

scholarly journals Experimental Analysis of Passive Strategies in Houses with Glass Façades for the Use of Natural Light

2021 ◽  
Vol 13 (15) ◽  
pp. 8652
Author(s):  
Patricia Aguilera-Benito ◽  
Carolina Piña-Ramírez ◽  
Sheila Varela-Lujan
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Well Being ◽  
Natural Light ◽  
Scale Models ◽  
Passive Strategies ◽  
Solar Control ◽  
Reduce Energy Consumption ◽  
Alternative Energies ◽  
Health And Well Being

The main objective of this research was to analyze the passive solutions that help to reduce energy consumption through the use of natural light in buildings. In this case, the analysis focused on the use of natural light in buildings with all façades made of glass. Buildings designed with the criterion of regenerative sustainability, such as glass buildings, consider not only energy efficiency and the use of renewable and/or alternative energies, but also the improvement of the health and well-being of users—very important factors during an era in which the time spent at home has been increased due to the COVID-19 pandemic (disease caused by the SARS-CoV-2 virus). This experimental research was based on the analysis of data collected during a full year of monitoring of two scale models of Farnsworth House, a house with glass façades in all of its orientations. The results allowed us to conclude that these passive elements must be taken into account in the initial design of a building; a solar control sheet is also advisable in this type of glass building because it greatly reduces the illuminance inside the spaces, and the use of overhangs distributes the illuminance inside the rooms more evenly. In addition, the use of scale models provides a more accurate view of the parameters related to light energy.

Experimental Analysis to Optimize the Performance of Air Curtains and Heat Exchangers

2015 ◽  
pp. 590-640
Author(s):  
Samuel Mariano do Nascimento ◽  
Gustavo Galdi Heidinger ◽  
Pedro Dinis Gaspar ◽  
Pedro Dinho Silva
Keyword(s):  
Mathematical Model ◽  
Energy Consumption ◽  
Heat Exchanger ◽  
Thermal Performance ◽  
Environmental Conditions ◽  
Heat Exchangers ◽  
Heat Load ◽  
Experimental Studies ◽  
Air Curtain ◽  
Back Panel

This chapter reports an overview about experimental studies concerning the thermal performance of air curtains and heat exchangers installed in vertical open refrigerated display cases. The air curtain analysis shows the influence on the thermal performance by varying the width of the discharge air grille and the perforation density of the back panel by a mathematical model. The variation on the perforation density of the back panel and the width of discharge air grille alter significantly the thermal entrainment factor and the energy consumption of the equipment. Focusing the influence of environmental conditions on the performance of the heat exchanger, a second mathematical model was developed to evaluate the total heat load, its partial components and the condensate water mass. This analysis provides valuable information to the design of the air curtain and heat exchanger based on in-store environmental conditions and airflow efficiency.

TRADITIONAL OUTBUILDINGS OF THE MORDOVIANS

2019 ◽  
Vol 15 (2) ◽  
pp. 154-165 ◽  
Author(s):  
Elena N. Mokshina ◽  
Mihail I. Svyatkin
Keyword(s):  
Ethnic Group ◽  
Economic Activity ◽  
Building Materials ◽  
Animal Feed ◽  
Economic Activities ◽  
Important Place ◽  
Main Building ◽  
Genetic Problem ◽  
Materials Used ◽  
Functional Purpose

Introduction. The article deals with the main traditional outbuildings of the Mordvinians, reported on their functional purpose in economic activity. The forms and types of outbuildings, as well as the main building materials used by Mordvinians are described in details. Their significance in the religious and ceremonial life of the ethnic group is shown. Materials and Methods. The research is based on traditional methods of ethnographic science, such as field observation, survey and interviews, and a comprehensive approach. Among the methods of historical science comparative-historical, historical-genetic, problem-chronological, structural-system were used. Among the general scientific methods of research logical, descriptive, narrative, generalization, classification and systematization were involved. To achieve the results of the study, the materials collected by the authors in the course of field surveys conducted in the Mordovian villages were mainly used. Results and Discussion. Traditional outbuildings were of great importance in the economic activity of the Mordovian ethnic group. According to their functional purpose, they can be divided into the following groups: for livestock and poultry (stable, chicken coop, stable, kalda), sanitary and hygienic (bath), warehouse buildings for storage of food, utensils, firewood, animal feed (barn, cellar, woodshed, hayloft), for processing of grain (sheep, riga, mill). Depending on the welfare and financial capacity of the family, the number of outbuildings was different. As a rule, the wealthier families had more outbuildings than the less wealthier ones. The main building material for the construction of these buildings was wood. Conclusion. Thus, the traditional outbuildings of the Mordvinians occupied an important place in its economic activities. At the same time, each of them had its own purpose and performed certain functions. Some buildings, such as a bath and a barn, had not only economic purpose, but also were the venue for a number of prayers and ceremonies. It is now ordinarily they have banya (bath-house), outdoor courtyard with standing in different places sheds, barn and cellar.

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