The Experts below are selected from a list of 27 Experts worldwide ranked by ideXlab platform
Sanket Puranik - One of the best experts on this subject based on the ideXlab platform.
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thermal performance evaluation of a mineral based Cement Tile as roofing material
Indoor and Built Environment, 2017Co-Authors: D Kiran E V S Kumar, Sanket PuranikAbstract:In tropical climates like India, solar radiation is the major source of heat gain through roofs as they are exposed to the sun throughout the day. As the ambient conditions are dynamic, it is important to look at periodic variation of heat flow through roofs. In this context, apart from U-values that the Energy Conservation Building Code of India (ECBC-2007) prescribes for envelopes, more specific performance indicators should be considered for designing energy efficient buildings. The study presented in this paper evaluates thermal performance of Cement Tile as roofing material and compares it with the performance of two other typical roof insulation materials monitored in hot and dry climate of India. The results are supported with physical structures using Scanning Electron Microscope (SEM) images and energy simulations. Despite having higher overall U-value (over six times), Model 1 (with Cement Tile) shows better thermal performance and negligible energy savings than Model 2 (with extruded polystyren...
D Kiran E V S Kumar - One of the best experts on this subject based on the ideXlab platform.
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thermal performance evaluation of a mineral based Cement Tile as roofing material
Indoor and Built Environment, 2017Co-Authors: D Kiran E V S Kumar, Sanket PuranikAbstract:In tropical climates like India, solar radiation is the major source of heat gain through roofs as they are exposed to the sun throughout the day. As the ambient conditions are dynamic, it is important to look at periodic variation of heat flow through roofs. In this context, apart from U-values that the Energy Conservation Building Code of India (ECBC-2007) prescribes for envelopes, more specific performance indicators should be considered for designing energy efficient buildings. The study presented in this paper evaluates thermal performance of Cement Tile as roofing material and compares it with the performance of two other typical roof insulation materials monitored in hot and dry climate of India. The results are supported with physical structures using Scanning Electron Microscope (SEM) images and energy simulations. Despite having higher overall U-value (over six times), Model 1 (with Cement Tile) shows better thermal performance and negligible energy savings than Model 2 (with extruded polystyren...
Monica Poggi - One of the best experts on this subject based on the ideXlab platform.
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characterization of ceramic roof Tile wastes as pozzolanic admixture
Waste Management, 2009Co-Authors: Araceli E Lavat, Monica A Trezza, Monica PoggiAbstract:The aim of this work is to study the recycling of Tile wastes in the manufacture of blended Cements. Cracked or broken ceramic bodies are not accepted as commercial products and, therefore, the unsold waste of the ceramic industry becomes an environment problem. The use of powdered roof Tile in Cement production, as pozzolanic addition, is reported. The wastes were classified as nonglazed, natural and black glazed Tiles. The mineralogy of the powders was controlled by SEM-EDX microscopy, XRD analysis and FTIR spectroscopy. Particle size was checked by laser granulometry. Once the materials were fully characterized, pozzolanic lime consumption tests and Fratini tests were carried out. Different formulations of Cement-Tile blends were prepared by incorporation of up to 30% weight ratios of recycled waste. The compressive strength of the resulting specimens was measured. The evolution of hydration of the Cement-Tile blends was analyzed by XRD and FTIR techniques. Vibrational spectroscopy presented accurate evidence of pozzolanic activity. The results of the investigation confirmed the potential use of these waste materials to produce pozzolanic Cement.
Brenda Chaves Coelho Leite - One of the best experts on this subject based on the ideXlab platform.
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the green roof thermal performance evaluation in comparison to asbestos Cement Tiles applied to light steel frame brazilian buildings
International Journal of Architectural Research: Archnet-IJAR, 2018Co-Authors: Angelica Felicidade Guiao Marcato Costa, Joao Alexandre Paschoalin Filho, Tatiana Tucunduva Philipi Cortese, Brenda Chaves Coelho LeiteAbstract:This research aimed at comparing the thermal performance provided in experimental modules, one of which was performed with conventional cover, made of asbestos Cement Tiles; an another with green cover. The structure of the studied modules was executed using Light Steel Frame technique. As an experimental research, modules were built in a wide place, without the interference of shading. Instruments were installed in the inner part of the modules to measure the following data: air temperature, relative humidity. From the collected data, representative episodes have been chosen for the studies that aimed to compare the comfort provided by both modules, built with different roofs. As result, it was verified that the module with green roof had better performance than the module covered with asbestos Cement Tile in all selected episodes. The module covered with green roof maintained lower internal temperature variation throughout the days, indicating that the green roof has characteristic thermal insulation, reducing the heat flow from the roof.
J. Fiorelli - One of the best experts on this subject based on the ideXlab platform.
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THERMAL COMFORT IN INDIVIDUAL SHELTERS FOR CALVES WITH NON-CONVENTIONAL CEILING MADE OF AGRO-INDUSTRIAL BY-PRODUCTS / CONFORTO TÉRMICO EM ABRIGO INDIVIDUAL PARA BEZERROS COM FORRO NÃO CONVENCIONAL DE SUBPRODUTOS AGROINDUSTRIAIS
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP), 2017Co-Authors: S. L. De Castro Júnior, D. C. G. De Oliveira, F. L. Caneppele, J. FiorelliAbstract:This study evaluated the thermal comfort conditions in two individuals calve shelter models covered with fiber Cement Tile without ceiling and using a ceiling made of low density particleboards from agro-industrial by-products (40% sugarcane bagasse and 60% Pinus sp. shavings) bonded with polyurethane bi-component resin based on castor oil. In the ambience study, dry bulb temperature (DBT), black globe temperature (BGT) and relative humidity (RH) of the calf hutches were evaluated. Indices, such as Black Globe Temperature and Humidity Index (BGHI) and Radiant Thermal Load (RTL), and also thermographic images of the internal surface of the shelters were studied. The use of fuzzy modeling has been proposed, allowing the comparison of the BGT, BGHI and RTL indices, and via these values, attributing the comfort situation, thus seeking to optimize the experimental evaluations. The results indicate that the presence of the ceiling did not contribute to a heat level reduction inside the shelters, which presented above the comfort conditions for the animals during the summer. Through observation, there was a reduction of the internal temperature of the surfaces of the shelter with a ceiling.