Using the heat flow plate method for determining thermal conductivity of building materials

Flori, M; Putan, Vasile; Vîlceanu, Lucia

doi:10.1088/1757-899x/163/1/012018

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…As a response to the increasing trend of energy use in buildings, decision makers and public authorities around the world adopted policies and measures aiming to reduce energy consumption and promote energy efficiency in buildings [7]. [19].…”

Section: Thermal Insulationmentioning

confidence: 99%

Promoting Energy Efficiency in the Palestinian Municipalities: A Case Study of Al-Dahriya Municipality

Alsamamra¹,

Isaila²,

Shoqeir³

2021

SGRE

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Energy demand overall the world increases rapidly in various sectors, one of the highest energy consumption sector is the building sector. Installation of PV systems is one of the solutions to cover this demand and will serve in promoting energy efficiency in the Palestinian municipalities in decreasing the electricity bill, and using the saved money in constructing new projects and improving the level of services provided to citizens. In this work, Al-Dahriya municipality has been taken as a case study. The municipality installed 20 KW of photovoltaic panels on the roof of the main building in 2015. The cumulative values for one year after installation the PV system represent a total consumed electricity by the main building was 71,506 kw, while the total generated power by the PV system that transferred to building was 32,664 kw, and 5323 kw exported to the grid with total generated power by PV system was 37,987 kw. The participation of energy that produced by the photovoltaic system is 53.12% of the total power demand of the building. The value of generated power varies between the summer months and winter months through the difference of the solar radiation intensity and the number of shinning hours, the largest reading of solar radiation intensity is in the summer months. The study ensures the importance of applying selected thermal insulation materials in order to decrease the heat transfer through the boundary wall of the building. Furthermore, this study covers the other buildings and utilities of municipality and recommended with certain issues in order to promote energy efficiency.

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Section: Thermal Insulationmentioning

confidence: 99%

Promoting Energy Efficiency in the Palestinian Municipalities: A Case Study of Al-Dahriya Municipality

Alsamamra¹,

Isaila²,

Shoqeir³

2021

SGRE

View full text Add to dashboard Cite

show abstract

“…In this method, a sample with a reference material is placed on the top of a calorimetric chamber, with the heat applied from underneath. Based on the known thermal conductivity of the reference material and the heat flux that passes through the two layers, the thermal conductivity of the target material can be ascertained [40,41]. The obtained results using both devices were compared to confirm accuracy and were used for numerical analysis, as input parameters.…”

Section: Experimental Measurementmentioning

confidence: 99%

The Effect of Lightweight Concrete Cores on the Thermal Performance of Vacuum Insulation Panels

et al. 2020

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The performance of vacuum insulation panels (VIPs) is strongly affected by several factors, such as panel thickness, design, quality of vacuum, and material type. In particular, the core materials inside VIPs significantly influence their overall performance. Despite their superior insulation performance, VIPs are limited in their widespread use as structural materials, because of their low material strength and the relatively expensive core materials. As an alternative core material that can compensate these limitations, foamed concrete, a type of lightweight concrete with very low density, can be used. In this study, two different types of foamed concrete were used as VIP core materials, with their effects on the thermal behavior of the VIPs having been evaluated using experimental and numerical methods. To confirm and generate numerical models for VIP analysis, micro-computed tomography (micro-CT) was utilized. The obtained results show that insulation effects increase effectively when panels with lightweight concrete are in a vacuum, and both foamed concrete types can be effectively used as VIP core materials.

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Thermal Conductivity of Building Materials in Iraq

Al-Doury¹,

Hasan

Mohammed³

et al. 2021

Tikrit j. eng. sci.

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Thermophysical Properties of Building Materials are Considered to have high importance in predicting building thermal performance, calculating thermal loads inside building, and optimizing the use of a building and insulating materials. Due to the lack of measurements of local building materials properties, designers and air- conditioning engineers have no choice but to use the published foreign data, which probably leads to inaccurate predictions of thermal loads and may give a false thermal performance. At the same time, it leads to an over-designed capacity of air- conditioning systems that lead to increased energy consumption in the building. Thus, it is clear that it was important to conduct this research to evaluate the thermal conductivity and thermal resistance of Iraqi building materials. The number of the local building materials were listed, and specimens were collected from their sites, factories, and suppliers such as bricks, stones, concrete products, gypsum, etc. Those samples were dimensioned to the specific size required when a measurement was conducted by the Hot Wire method. All measurements were carried out at room temperature. The relationship between thermal conductivity, density, moisture content, and pressure for a number of materials was Studied. A comparison between the measurements of the Iraqi building materials and results published in the ASHRAE, CIBS Guide, Australian Specifications, and Jordanian Specifications was made. However, the availability of such data is important for the climatic design of buildings, thermal load calculations for air- conditioning, and choosing the insulating materials.

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Using the heat flow plate method for determining thermal conductivity of building materials

Cited by 3 publications

References 6 publications

Promoting Energy Efficiency in the Palestinian Municipalities: A Case Study of Al-Dahriya Municipality

Promoting Energy Efficiency in the Palestinian Municipalities: A Case Study of Al-Dahriya Municipality

The Effect of Lightweight Concrete Cores on the Thermal Performance of Vacuum Insulation Panels

Thermal Conductivity of Building Materials in Iraq

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