U.S.S.R. experience in thermal design of building envelopes with improved thermal properties

1989 ◽  
Vol 14 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Yu.A. Matrosov ◽  
I.N. Butovsky
Keyword(s):  
Thermal Properties ◽  
Thermal Design ◽  
Building Envelopes

Thermal Properties Analysis of Several N-Alkanes Eutectic Mixtures Applied in Building Envelopes

2012 ◽  
Vol 512-515 ◽  
pp. 3007-3010
Author(s):  
Jing Yu Huang ◽  
Shi Lei Lv ◽  
Chen Xi Zhang ◽  
Zhi Wei Wang
Keyword(s):  
Thermal Properties ◽  
Melting Temperature ◽  
Latent Heat ◽  
Heat Storage ◽  
Eutectic Mixture ◽  
Scanning Calorimetry ◽  
Latent Heat Storage ◽  
Building Envelopes ◽  
Eutectic Mixtures ◽  
Change Material

This study focuses on the preparation, thermal properties of alkanes eutectic mixtures (n-Octadecane/n-Eicosane, n-Octadecane/n-Docosane and n-Heptadecane /n-Eicosane) as candidate phase change material (PCM) for low temperature latent heat storage systems in building envelopes. Their melting temperature and latent heat were tested by Differential scanning calorimetry (DSC). The testing values were closed to calculation values of accepted theory that ensured the reliability of those datas. The results indicated n-Octadecane/n-Docosane eutectic mixture was more promising PCM for buildings in terms of melting temperature (25.3°C) and latent heat values of melting (158.2J/g).

scholarly journals Relationship Between Dynamic Thermal Properties, Energy Consumption and Comfort with Different Building Envelopes in a Canadian Building

2020 ◽  
Author(s):  
Alexandre Pépin ◽  
Louis Gosselin ◽  
Jonathan Dallaire
Keyword(s):  
Heat Capacity ◽  
Thermal Properties ◽  
Energy Consumption ◽  
Important Variable ◽  
Office Building ◽  
Quebec City ◽  
Thermal Mass ◽  
Building Envelopes ◽  
Heating And Cooling ◽  
Energy Intensities

An office building located in Quebec City (Canada) with different envelope assemblies has been simulated in order to determine the energy consumption and thermal comfort that they provide. The resistance, thermal mass, and materials (concrete, cross-laminated timbers (CLT), and light-frame) are varied in a series of 164 different scenarios and the energy intensities for heating and cooling determined in each case, along with the discomfort index. Results show that the materiel used to provide thermal mass has a larger impact on comfort and energy consumption than the value of the thermal mass thickness itself. It was also attempted to correlate the performance of the envelope and its thermal mass with three dynamic thermal properties (i.e., dynamic transmittance, areal heat capacity, and decrement factor). Apart from thermal resistance, the internal areal heat capacity appeared to be the most important variable to explain variations of performance of the envelope.

Dynamic Thermal Properties of Uninsulated Rammed Earth Building Envelopes

2013 ◽  
Vol 855 ◽  
pp. 85-88 ◽  
Author(s):  
Miloslav Bagoňa ◽  
Clayton Stone ◽  
Jozef Šimiček
Keyword(s):  
Thermal Properties ◽  
Rammed Earth ◽  
Conductive Heat ◽  
Climate Data ◽  
Climate Chamber ◽  
Building Envelopes ◽  
Transfer Processes ◽  
Australian Climate ◽  
Building Components

The paper demonstrates the thermal admittance procedure as a technique to quantify the dynamic thermal properties of two uninsulated rammed earth building components subjected to radiative and conductive heat transfer processes. With the aid of Australian climate data and a climate chamber, this research paper uses a dynamic thermal property calculator developed by Arup in accordance with EN ISO 13786:2007 to quantify the performance of a homogenous rammed earth envelope subjected to in-situ measurements that mimic real conditions.

Uses of Glass in Architecture: Heat Losses of Buildings Based on Translucent Structures

2014 ◽  
Vol 680 ◽  
pp. 481-485 ◽  
Author(s):  
Yury Nikitin ◽  
Vera Murgul ◽  
Nikolay Vatin ◽  
Viktor Pukhkal
Keyword(s):  
Thermal Properties ◽  
Energy Consumption ◽  
High Heat ◽  
Heat Losses ◽  
Building Envelopes ◽  
Heating Systems ◽  
Saint Petersburg ◽  
The City

At present time translucent structures have appeared to be the most crucial issues regarding building envelopes in relation to high heat losses in the cold periods of the year. Development of the methods to improve thermal properties of translucent structures is considered to be an up-to-date issue. Heat losses of exhibition halls with varied dimensions ratio and energy consumption of heating systems have been determined for the case of the city of Saint-Petersburg (Russia)

METHOD OF CALCULATION OF THERMAL PROPERTIES FOR BUILDING ENVELOPES WITH SCREEN INSULATION

2016 ◽  
Vol 6 (1) ◽  
pp. 4-7 ◽  
Author(s):  
Yuri Serafimovich VYTCHIKOV ◽  
Mikhail Evgen'evich SAPAREV
Keyword(s):  
Thermal Properties ◽  
Thermal Conduction ◽  
Numerical Data ◽  
Engineering Practice ◽  
Building Envelopes ◽  
Method Of Calculation ◽  
Thermal Screen ◽  
Air Ventilation ◽  
Resources Conservation ◽  
The Moment

The present research is performed in the framework of energy and resources conservation measures promotion in civil engineering. It introduces the perspectives of using thermal isolation in outer building envelopes and in air ventilation and conditioning systems insulation. The paper analyses the use of thermal screen isolation in building envelopes and air ventilation systems and proves that at the moment there is no methodology able to calculate these constructions in the existing engineering practice. The authors conducted a physical experiment to get reliable data on thermal screen isolation properties taking expanded polyethylene as a sample material. The results of the experiment as well as the obtained thermal conduction coefficient are presented in the paper. On the basis of the numerical data the authors introduce a verified methodology of calculation of thermal properties for building envelopes with screen insulation.

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