Experimental Investigation on the Prefabricated Walls to Reduce Heat loss

Ashrafi, Alireza (2017) Experimental Investigation on the Prefabricated Walls to Reduce Heat loss. Masters thesis, University of Mohaghegh Ardabili.

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Text (مطالعه تجربی دیواره‌های پیش‌ساخته به منظور کاهش اتلافات گرمایی آنها) Alireza Ashrafi.pdf Download (1MB) | Preview

Abstract

Nowadays, with the growth of the population and construction industry in various applications, factors such as time and energy consumption are turned out to be crucial. Time is important factor due to the fact that as a building is constructed as soon as possible, the money spent on it will be saved. On the other hand, in our country, there is a significant portion of energy consumption in the buildings, especially in residential areas. Two of these issues along with lightweight building concept make the building industry more attractive toward the prefabricated walls.In this research, we try to study the gypsum prefabricated walls in order to improve their specifications, where the main objectives of this optimization are the characteristic of weight and conduction heat transfer coefficient.In this research, we have focused on the interior space of the block, since the size and dimensions of the gypsum walls are fixed in accordance with the national standard number of 2786. As a result of creating such a closed interior space, the thermal resistance will be increased, whereas a large amount of plaster volume will be decreased.After designing the wall and mold and specifying the method of its production and testing 6 samples of the walls, the conduction heat transfer coefficient of the 10 cm produced wall is obtained 0.43 W.m-1.K-1. This value is significant in comparison with other thermal insulation materials such as rock wool, glass wool, Phenolic, Vermiculite, etc.At the end of this study, a comparison is made between the produced walls, common building materials, and insulation materials with high consumptions, which results demonstrate the benefit use of this gypsum prefabricated wall in the building industry from the energy issues as well as economic viewpoints. Keywords: Gypsum prefabricated wall, Conduction heat transfer coefficient, Thermal insulation materials, Lightweight building;

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