Practical installation methods of thermal insulation in a residential building in hot climate

2013 ◽  
Author(s):  
S. M. A. Bekkouche ◽  
N. Benamrane ◽  
M. K. Cherier ◽  
M. Hamdani ◽  
M. R. Yaiche ◽  
...  
Keyword(s):  
Thermal Insulation ◽  
Residential Building ◽  
Hot Climate

scholarly journals Assessment of thermo-modernization in a multifamily building

2018 ◽  
Vol 49 ◽  
pp. 00004
Author(s):  
Małgorzata Basińska ◽  
Halina Koczyk ◽  
Aleksandra Błotnicka-Smyk
Keyword(s):  
Thermal Insulation ◽  
Residential Building ◽  
Heating System ◽  
Energy Performance ◽  
Performance Characteristics ◽  
Central Unit ◽  
The Real ◽  
Water Heaters ◽  
Electricity Costs

This paper presents an evaluation of thermo-modernisation improvements applied over the years in the multi-family residential building. Those improvements have included the civil and mechanical activities. The civil activities were as follows: the application of the thermal insulation on the external walls and replacement of the windows. The mechanical activities were mainly focused on an adjustment of the heating system to the new reduced heating demands of the building. The heating system in the building was modified - the radiators were replaced with the new ones, the heating central unit was modernised. Moreover the local gas water heaters were eliminated. Then the building’s energy performance characteristics, prepared according to the valid Polish methodology, were compared with the real consumption. It was found that after the application of thermo-modifications the heating demand was reduced, twice. The economy efficiency of the thermo-modernisation was evaluated by means of a method of the annual costs. The annual costs include the heating system exploitation costs, DHW preparation system and the auxiliary devices electricity costs.

Effect of thermal insulation using leather and carpentry wastes on thermal comfort and energy consumption in a residential building

2017 ◽  
Vol 10 (5) ◽  
pp. 1189-1199 ◽  
Author(s):  
Hicham Lakrafli ◽  
Soufiane Tahiri ◽  
Abderrahmane Albizane ◽  
Souad El Houssaini ◽  
Mohamed Bouhria
Keyword(s):  
Energy Consumption ◽  
Thermal Comfort ◽  
Thermal Insulation ◽  
Residential Building

scholarly journals INTEGRATED EVALUATION OF EXTERNAL WALL INSULATION IN RESIDENTIAL BUILDINGS USING SWARA-TODIM MCDM METHOD

2014 ◽  
Vol 20 (1) ◽  
pp. 103-110 ◽  
Author(s):  
Audrius Ruzgys ◽  
Robertas Volvačiovas ◽  
Česlovas Ignatavičius ◽  
Zenonas Turskis
Keyword(s):  
Thermal Insulation ◽  
Residential Buildings ◽  
Great Part ◽  
Residential Building ◽  
Payback Period ◽  
Apartment Building ◽  
External Wall ◽  
Water Vapour Diffusion ◽  
Price Duration ◽  
Mcdm Method

A great part of energy produced in Europe is consumed by old residential buildings. Consequently, it is necessary to retrofit energetically non-efficient buildings. However, there is a mass financial gap between cost effective retrofitting and upgrading to nearly zero energy building levels. The efficiency of apartment building modernization under current requirements applicable in Lithuania and the requirements for 2020 was analysed, focusing on thermal insulation of external walls. Six cases of residential building modernization in Lithuania were studied estimating criteria that are among the most important for implementation of apartment building modernization, such as the total cost of the external wall modernization, simple payback period, work duration, and other parameters related to the characteristics of thermal insulation systems. The weights of the criteria were calculated after an expert survey and using integrated SWARA-TODIM multi-criteria decision-making (MCDM) method the best alternatives were ranked. After analyzing the differences between the current situation and upcoming requirements for rendered and ventilated type of façades, it can be stated that the final result depends more on price, duration of works, payback period, energy losses and water vapour diffusion than on the type of façade or insulation requirements applied at present or future.

scholarly journals Physical parameters of insulation with a structure-forming material from flax noils

2020 ◽  
Vol 212 ◽  
pp. 02014
Author(s):  
Sergey Romanovskiy ◽  
Aleksandr Bakatovich
Keyword(s):  
Moisture Content ◽  
Thermal Insulation ◽  
Field Tests ◽  
Residential Building ◽  
Cold Season ◽  
Vapor Permeability ◽  
Physical Parameters ◽  
Transfer Resistance ◽  
Flax Fibers ◽  
Sorption Moisture

The results of studies to evaluate the effective operation of the obtained thermal insulation slabs made of flax fibers or noils were carried out. The sorption moisture content of insulants based on flax fibers or noils with modified liquid glass was determined at a relative humidity of 40–97%. The influence of humidity on the thermal conductivity of the test materials was studied. The coefficient of vapor permeability of insulation made of flax fibers or noils was established. The results of field tests of experimental thermal insulation materials on the attic flooring of a residential building during the cold season were considered. The graphs of the temperature distribution over the structure of the attic flooring and heat flow indicators were obtained. The values of the heat transfer resistance of the attic flooring were calculated at an air temperature of -20 °C to -2 °C. The moisture content of insulation at the end of the cold period was determined and the dependence of the distribution of moisture over the thickness of the thermal insulation layer was plotted. The results of the tests carried out indicate the highest efficiency of thermal insulation slabs made of flax fiber noils in comparison with insulants based on flax fibers.

ANALYSIS FOR THERMAL BEHAVIOR AND ENERGY SAVINGS OF A SEMI-DETACHED HOUSE WITH DIFFERENT INSULATION STRATEGIES IN A HOT SEMI-ARID CLIMATE

2017 ◽  
Vol 12 (1) ◽  
pp. 78-106 ◽  
Author(s):  
Issam Sobhy ◽  
Abderrahim Brakez ◽  
Brahim Benhamou
Keyword(s):  
Thermal Insulation ◽  
Energy Savings ◽  
Thermal Inertia ◽  
Residential Building ◽  
Cavity Wall ◽  
Arid Climate ◽  
Heating And Cooling ◽  
Detached House ◽  
Cooling Loads ◽  
Semi Arid

The purpose of this research is to assess thermal performance and energy saving of a residential building in the hot semi-arid climate of Marrakech (Morocco). The studied house is built as usual in Marrakech without any thermal insulation except for its external walls, facing East and West, which are double walls with a 5 cm air gap in between (“cavity wall” technique). The cavity wall effective thermal conductivity was carefully calculated taking into account both radiation and convection heat transfers. Experimental results, obtained from winter and summer monitoring of the house, show well dampening of air temperature, thanks to its thermal inertia. However, this temperature remained outside the standard thermal comfort zone leading to large cooling/heating load. Simulation results indicate that the cavity wall contributes to an overall reduction of 13% and 5% of the house heating and cooling loads respectively. Moreover, the addition of XPS roof thermal insulation significantly enhances the heating and cooling energy savings to 26% and 40% respectively.

Thermal Insulation Efficiency of Unventilated Air-Gapped Facades in Hot Climate

2016 ◽  
Vol 42 (3) ◽  
pp. 1155-1160 ◽  
Author(s):  
Mohammed A. M. Alhefnawi ◽  
Mohammed Abdu-Allah Al-Qahtany
Keyword(s):  
Thermal Insulation ◽  
Hot Climate

scholarly journals Comparative Calculation of Heat Exchange with the Ground in Residential Building Including Periodes of Heat Waves

2016 ◽  
Vol 21 (2) ◽  
pp. 109-119 ◽  
Author(s):  
Anna Staszczuk ◽  
Tadeusz Kuczyński ◽  
Magdalena Wojciech ◽  
Piotr Ziembicki
Keyword(s):  
Heat Exchange ◽  
Thermal Insulation ◽  
Heat Waves ◽  
Computer Software ◽  
Coupled Model ◽  
Residential Building ◽  
Air Temperatures ◽  
Calculation Results ◽  
Hot Weather ◽  
Recent Version

Abstract The paper provides verification of 3D transient ground-coupled model to calculation of heat exchange between ground and typical one-storey, passive residential building. The model was performed with computer software WUFI®plus and carried out to estimate the indoor air temperatures during extending hot weather periods. For verifying the results of calculations performed by the WUFI®plus software, the most recent version of EnergyPlus software version was used. Comparison analysis of calculation results obtained with the two above mentioned calculation method was made for two scenarios of slab on ground constructions: without thermal insulation and with thermal insulation under the whole slab area. Comprehensive statistical analysis was done including time series analysis and descriptive statistics parameters.

Experimental Research on Thermal Behavior of Light Gauge Steel-Framed Composite Walls with Slotted Studs

2014 ◽  
Vol 638-640 ◽  
pp. 71-83
Author(s):  
Sheng Wu
Keyword(s):  
Transmission Coefficient ◽  
Thermal Insulation ◽  
Residential Building ◽  
Building Envelope ◽  
Heat Transmission ◽  
Measuring Point ◽  
Limit Value ◽  
Fea Model ◽  
Institute Of Technology ◽  
Composite Walls

Two thermal experiments of light gauge steel-framed composite walls with slotted studs and with external thermal insulation layer were carried out in the lab of combined energy consumption test board for components of building envelope in school of municipal and environmental engineering at Harbin Institute of Technology (HIT). The lab is one of the key laboratories of Ministry of Housing and Urban-Rural Development of the P.R.China. The method of thermocouple temperature measurement has been used. The heat transmission coefficient and the measuring point temperature of composite wall have been deeply investigated, which is finely compared with the FEA model results at the same time. Two conclusions can be drawn from the test: web slotted studs can reduce heat loss of the light gauge steel-framed composite walls obviously, thus it can weaken the thermal bridge effect of the location in stud part, so it can improve the thermal insulation properties of the composite walls significantly; the composite walls’ heat transmission coefficients of the two test schemes go to: 0.315W/(m2·K)and 0.250W/(m2·K), which can meet the residential building envelope heat transmission coefficient limit value in the cold areas of China well.

Sign in / Sign up

Export Citation Format

Share Document