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Roof tiles are the most common roof coverings in Indian buildings, especially in traditional residential buildings. Given the important role of roofing characteristics in building energy efficiency and indoor thermal comfort conditions, innovative solutions to improve the thermal energy performance of this diffused roofing element have become a key...
Contexts in source publication
Context 1
... has a phase-changing property [22]. Figure 1 shows the characteristic of PCM material. ...
Context 2
... 9 shows the temperature variation outside of tile compared with ordinary tile during night time. Also, inside of the tile the average temperature reduced 2°C compared to ordinary tile, Figure 10 displays the temperature variation inside of tile compared with ordinary tile during night time. ...
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... the tile 20% MT is having very little temperature variation compared to inside and outside of the tile. Figure 11 shows the Nighttime temperature variation inside and outside tile. In ordinary tile, the temperature increases inside compare to outside this is due to the ordinary tile absorb the temperature during the day time. ...
Citations
... The main house, H-1 to H-5, is still dominated by wood materials, especially on the floors and walls. This condition certainly has an effect on lowering temperature inside [47]. In additional units, the floor material uses ceramics, and the wall material bricks. ...
... Using wide roofs in the main house keeping continue in additional units. The sloping and high roof with wide roofers is an adaptation effort to face local environmental and climatic conditions [43], [47], [48]. ...
This qualitative study aims to obtain information related to local knowledge of the Malay community and its influence on the continuity of vernacular architecture. This study used five Deli Malay vernacular dwellings as study objects, and they were selected based on several criteria. Collecting data was conducted by means of observation, semi-structured interviews, and visual documentation. Some householders were chosen as respondents to find out the depth of knowledge related to Malay vernacular architecture. The continuity identification uses spatial variables and the physical form of vernacular dwellings. The identification results aimed to analyze the extent, to which local knowledge influences the sustainability of Malay vernacular dwellings. This study found that the householders quality of local knowledge was decreasing by generation hereditary. Currently, the continuity of Malay vernacular housing occurs due to the desire of homeowners to maintain their identity as an ethnicity, and the memories left by their parents who built the dwellings. Following up on this study's findings, it is necessary to preserve Deli Malay vernacular architecture, bearing in mind that its existence would be increasingly displaced by the times.
... Development of an individual thermal comfort model with data from wearable devices (smart band) and machine learning [115] Adaptive thermal comfort with tracking-based method Understanding user behavior, ascertaining thermal comfort and identifying how energy consumption is impacted especially in seasonal periods. Through screening it is possible to save up to 34.33% energy [116] Shading system with PCM Cooling energy consumption decreased by 44% and the number of hours of thermal comfort improved by 34% [117] Building Automation ...
With the increasing number of people living in cities, the demand for energy in office buildings and homes is constantly increasing; thus, smart buildings were created to provide users with better comfort conditions. However, using artificial systems becomes an unsustainable alternative for these environments. This research conducted a literature review of studies published in Scopus and Web of Science between 1970 and 2022 to identify studies that contained strategies to promote thermal comfort and energy efficiency in buildings, as well as the main challenges and barriers to sustainability. A total of 9195 articles related to the topic were identified, and after applying the defined criteria, 105 were included in this review. Three research questions were investigated, and the main findings of this research are: (i) it is more difficult to assess thermal comfort and thermal sensation than energy efficiency; (ii) to promote a thermally comfortable environment, it is necessary to consider numerous aspects to reduce environmental impacts and energy consumption and to increase sustainability; (iii) actual thermal conditions are influenced by factors such as energy levels, climate, setpoint types, building type, size and orientation, and economic factors, among others; (iv) new technologies found in smart buildings showed distinct performances according to the climates of each region, and their evaluations can cover thermal comfort, energy savings, and payback time.
... According to his results, an optimal replacement rate of 15% can be used for strength, but an increase in water absorption was also observed. Recent studies has been done on Fly ash-based GPC which has exceptional compressive strength, making it ideal for structured applications [10]. A Study on roof tiles using metakolin with different percentages of EPS, sodium silicate and flexi cool coating paint was studied by Raheem and Sulaiman [11] .The researcher suggested 20% metakolin has higher strength compared to ordinary tile, which is 9.1% and 39.6% in terms of compressive strength and transverse breaking strength. ...
Hollow concrete blocks (HCBs) are substitutes for conventional bricks and stones in building construction. Experimental testing has been performed on the feasibility of producing HCBs from sawdust (SD). Sawdust is substituted with fine aggregate (pumice) by weight proportions 3, 6, and 9%. Sawdust is treated with tap water to remove foreign materials. Different tests were performed on blocks in order to find the effect of sawdust and to confirm whether blocks produced will satisfy the minimum acceptable standards. Different tests were conducted on the samples for 21 days as in Ethiopia to reflect the pratical application. Compressive strength of sawdust with additions of 3, 6, and 9% was 1.17, 0.99, and 0.51 N/mm 2 , respectively. Replacement with 9% resulted in a higher rate of water absorption. The density of HCBs was found to be between 633.06 and 638.21 kg/m 3. In light of the results, it is concluded that 3% of sawdust can be optimized for the production of blocks.
... In fact, passive cooling techniques can be used as alternative solutions to increase the building thermal-visual comfort while saving energy consumption. The implementation of passive cooling techniques in increasing building thermal-visual comfort have been performed in some previous studies [13][14][15][16][17][18]. Meanwhile, for outdoor thermal comfort improvement, some strategies can be performed such as urban greening, cool pavements, landscape arrangement [19][20][21] In terms of energy and environmental aspects, the building sector consumes 40% of the world's energy needs [22] and emits up to 23% of greenhouse gas emissions [23]. ...
Thermal-visual comfort are important aspects of building design. Indoor thermal and daylight conditions in buildings are strongly affected by the amount of solar heat gain transmitted by windows. This experimental study aims to analyze the impact of window internal shading on the thermal-visual comfort of a residential building. The measurement is carried out on two building prototypes with a size of 80 cm × 60 cm and a height of 50 cm. The building roof is made of zinc-coated steel with a 30° - degree slope. The walls of the prototypes are 9 mm thick plywood boards. 40 cm × 30 cm glass windows are installed on the front and backside of the building. Thermal and visual effects of windows are analyzed by comparing the indoor temperature and daylight illuminance for two cases; building with and without shading devices. Indoor temperature and daylight illuminance are measured for three different degrees of slat angles of shading device; (a) 90° (vertical slat position, no solar irradiation enter in the room), (b) 45°, and (c) 0° (horizontal slat position). The measurement results shows that the change in the angle of the shading slats affects the thermal-visual conditions of the room. © 2021. Int. J. of GEOMATE All rights reserved, including making copies unless permission is obtained from the
