scholarly journals Performance of aerogel as a thermal insulation material towards a sustainable design of residential buildings for tropical climates in Nigeria

2021 ◽  
Author(s):  
Aminu Wali Bashir ◽  
Brenda Chaves Coelho Leite
Keyword(s):  
Thermal Insulation ◽  
Sustainable Design ◽  
Residential Buildings ◽  
Insulation Material ◽  
Thermal Insulation Material ◽  
Tropical Climates

scholarly journals Prediction and Performance Investigation of Polyurethane Foam as Thermal Insulation Material for Roofing Sheet Using Artificial Neural Network

2021 ◽  
Vol 82 (1) ◽  
pp. 113-125
Author(s):  
V. B. Essien ◽  
Christian A. Bolu ◽  
Imhade P. Okokpujie ◽  
Joseph Azeta
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Polyurethane Foam ◽  
Thermal Insulation ◽  
Residential Buildings ◽  
Insulation Material ◽  
Indoor Temperature ◽  
Thermal Insulation Material ◽  
Artificial Neural ◽  
Roofing System

The prediction and application of Polyurethane Foam in developing roofing sheets cannot be over-emphasized when considering the environmental changes coursed by thermal radiation. This paper presents an artificial neural network application to model and predict the indoor temperature resistance of polyurethane (PU) roofing in residential buildings. The study employed a data logger to measure the indoor and outdoor temperatures for three simulation environments (i.e., morning, afternoon, and evening) for two hours each. Furthermore, the authors employed the Levenberg-Marquardt algorithm to transform and predict the indoor temperature obtained in the residential building's polyurethane roofing house. The result shows that the PU roofing system could absorb the heat and reduce the house model's temperature with 6.9% in the morning, afternoon 15.8%, and 6.8% in the evening when compared with the temperature outdoor environment. The ANN was also able to train, test, and validate the experimental temperature results with 92.86%, 93.92%, and 95%, respectively. The mean square error and a testing error occurs at 0.1707 and 0.1689. Therefore, this study concluded that ANN's application in predicting the thermal insulation material such as the PU roofing system is highly efficient and will increase the manufacturer's performance evaluation. It has also created significant awareness of the community in employing the PU roofing system for residential buildings, which will reduce the rate of energy consumption in buildings.

The Usage of Modern Inorganic Composite Material in the Design of Insulation of Unheated Smoke-Free Stairwells

2021 ◽  
Vol 410 ◽  
pp. 599-604
Author(s):  
Oleg V. Burlachenko ◽  
Oksana G. Chesnokova ◽  
Tatiana F. Cherednichenko
Keyword(s):  
Energy Efficiency ◽  
Composite Material ◽  
Composite Materials ◽  
Thermal Insulation ◽  
Thermal Protection ◽  
Residential Buildings ◽  
Foam Glass ◽  
Insulation Material ◽  
Thermal Insulation Material ◽  
Inorganic Composite

The article describes the problems that arise during the operation of unheated, smoke-free stairwells in multi-storey residential buildings. Measures are proposed for thermal protection of premises adjacent to stairwells of the H1 type. To solve the problems of improving the energy efficiency of the building, it is proposed to use modern thermal insulation material. In addition, a constructive solution is proposed for the insulation of the internal walls of an unheated, smoke-free stairwell using foam glass, which will ensure the strength, durability and reliability of thermal protection and finishing. Using modern composite materials, it is possible to improve the energy efficiency of the building.

Influences of Emulsion on Water Resistance of Vitrified Micro Bubbles Thermal Insulation Material

2013 ◽  
Vol 662 ◽  
pp. 433-436
Author(s):  
Jiang Zhu ◽  
Guo Zhong Li
Keyword(s):  
Compressive Strength ◽  
Polyvinyl Alcohol ◽  
Stearic Acid ◽  
Thermal Insulation ◽  
Water Resistance ◽  
Insulation Material ◽  
Molding Process ◽  
Thermal Insulation Material ◽  
Improve Water Resistance ◽  
Softening Coefficient

Vitrified micro bubbles thermal insulation material was made of vitrified micro bubbles, cement, fly ash, gypsum and sodium silicate, by molding process. VAE emulsion and stearic acid-polyvinyl alcohol emulsion were added to improve water resistance of the material. Mixed with 10% VAE emulsion and 5% stearic acid-polyvinyl alcohol emulsion, properties of the material are followed as: flexural strength 0.64MPa, compressive strength 1.35MPa, softening coefficient 0.71 and 2h volumetric water absorption 6.9%.

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