Thermal Transmittance Evaluation of Concrete Hollow Blocks

Leave Comment

Thermal Transmittance Evaluation of Concrete Hollow

2017-9-1  THERMAL TRANSMITTANCE EVALUATION OF CONCRETE HOLLOW BLOCKS . Fogiatto. M.A.a, Santos G.H.a*and Mendes N.b *Author for correspondence aFederal University of Technology – Parana (UTFPR) Mechanical Engineering Graduate Program, 84016-510 Ponta Grossa, Brazil

Get price

Thermal transmittance evaluation of concrete hollow blocks

For the assessment of building energy efficiency, the thermal transmittance evaluation of hollow blocks is required. In this way, this study aims at obtaining values of thermal transmittance for different cavity configurations of concrete blocks, by performing CFD simulations.

Get price

Thermal transmittance evaluation of concrete hollow blocks ...

Thermal transmittance evaluation of concrete hollow blocks @inproceedings{Fogiatto2016ThermalTE, title={Thermal transmittance evaluation of concrete hollow blocks}, author={Fogiatto and G. H. Santos and N. Mendes}, year={2016} }

Get price

Numerical analysis of thermal transmittance of hollow ...

2017-4-19  In several countries, hollow concrete blocks have become common over the past few years. Therefore, for the assessment of building energy efficiency, the thermal transmittance evaluation of hollow blocks is required. This study obtains values of thermal transmittance for different cavity configurations of concrete blocks by performing ...

Get price

Numerical analysis of thermal transmittance of hollow ...

2017-4-19  In several countries, hollow concrete blocks have become common over the past few years. Therefore, for the assessment of building energy efficiency, the thermal transmittance evaluation of hollow blocks is required. This study obtains values of thermal transmittance for different cavity configurations of concrete blocks

Get price

2.pdf - 12th International Conference on Heat Transfer ...

THERMAL TRANSMITTANCE EVALUATION OF CONCRETE HOLLOW BLOCKS Fogiatto M.A. a, Santos G.H. a *and Mendes N. b *Author for correspondence a Federal University of Technology – Parana (UTFPR) Mechanical Engineering Graduate Program, 84016-510 Ponta Grossa, Brazil b Pontifical Catholic University of Parana (PUCPR) Mechanical Engineering Graduate ...

Get price

Numerical Two-Dimensional Steady-State Evaluation of

2019-1-31  energies Article Numerical Two-Dimensional Steady-State Evaluation of the Thermal Transmittance Reduction in Hollow Blocks Marcelo Adriano Fogiatto 1, Gerson Henrique dos Santos 2,* and João Victor Reia Catelan 3 1 Mechanical Engineering Graduate Program, Pontifical Catholic University of Parana—PUCPR, Imaculada Conceição, 1155, 80215-901 Curitiba, Brazil;

Get price

Thermal Transmittance of Concrete Block Walls with Core ...

1986-1-1  Thermal transmittance values (U-values) of concrete block walls, with and without core insulation, tested at three laboratories are summarized. Insulations were

Get price

Thermal Performance Evaluation of Walls with AAC Blocks ...

The results indicated that the thermal resistance of AAC walls was about five times that of the HCB walls, whereas the thermal transmittance of AAC walls was reduced by 82%. The AAC blocks with insulating plaster and reflective coating tendered a 58% reduction in

Get price

In situ measurement of thermal transmittance and thermal ...

2014-12-1  A study was conducted to determine the in situ thermal transmittance and thermal resistance of two exterior reinforced precast concrete walls of a building constructed with hollow panels. The results indicate that the North and East facing walls have a mean thermal transmittance (air to air) of 1.459 and 1.803 W/m 2 K, respectively.

Get price

Thermal Performance Evaluation of Walls with AAC Blocks ...

The results indicated that the thermal resistance of AAC walls was about five times that of the HCB walls, whereas the thermal transmittance of AAC walls was reduced by 82%. The AAC blocks with insulating plaster and reflective coating tendered a 58% reduction in

Get price

Study on the Thermal Properties of Hollow Shale Blocks as ...

2017-6-1  To reduce energy consumption and protect the environment, a type of hollow shale block with 29 rows of holes was designed and produced. This paper investigated the thermal properties of hollow shale blocks and walls. First, the guarding heat-box method was used to obtain the heat transfer coefficient of the hollow shale block walls. The experimental heat transfer coefficient is

Get price

THERMAL PERFORMANCE OF MASONRY THERMAL

2018-7-27  thermal transmittance of a two -core concrete block wall system can be modeled using the simple technique of adding the thermal resistances in series and parallel by contributing percent areas. A schematic of a typical two-core concrete block filled with perlite is show below together with a mathematical analog.

Get price

Monitoring Thermal Performance of Hollow Bricks with ...

2014-10-7  Hollow brick blocks have found widespread use in the building industry during the last decades. The increasing requirements to the thermal insulation properties of building envelopes given by the national standards in Europe led the brick producers to reduce the production of common solid bricks. Brick blocks with more or less complex systems of internal cavities replaced the traditional ...

Get price

Non-linear thermal analysis of light concrete hollow brick ...

2006-6-1  This magnitude gives us an idea of the thermal insulation that has an enclosure.The sample is a wall of 3.80 × 3.65 m × m made of the following materials: • Blocks made of an expanded clay’s light concrete called ‘ARLITA’, made by PALERM, S.A. and whose commercial name

Get price

VI -7. Thermal Performance of Masonry Walls

2015-4-23  An uninsulated hollow block wall was made of unrein­ forced 8 in. concrete masonry units. Aggregate in the units was a combination of expanded shale and carbonate rock. Block properties are summarized in Table 2. Mortal' con­ sisted of one part portland cement, one-quarter part lime, and three parts masonry sand by volume. The wall was

Get price

Thermal performance of insulated concrete blocks: Series ...

2018-5-29  Site observation and detailed finite element thermal modelling were employed and with these techniques it was possible to show how poor storage and handling damaged individual insulated elements and more importantly how the mortar acted as a cold bridge across the insulation. This highlighted the need to consider all thermal bridging of a wall construction if the true thermal

Get price

A FEM comparative analysis of the thermal efficiency among ...

2010-12-1  This paper presents a comparative non-linear thermal analysis for a total of eighteen different in situ cast floors varying both the constituent materials of the hollow blocks (clay, concrete and lightweight concrete) and the shape and number of recesses (six different block types) using the finite element method (FEM). Based on the non-linear thermal analysis of the different configurations ...

Get price

Thermal Performance Optimization of Lightweight Concrete ...

2021-2-11  The blocks studied in this work are made up of lightweight concrete and expanded polystyrene (EPS) layered composite to build a corner wall. The composite blocks are composed of lightweight concrete with pumice aggregates and they have a central core of EPS, as it is shown in Fig. 1.The aim of this paper is to study the thermal performance of a corner wall made of composite blocks

Get price

THERMAL PERFORMANCE OF MASONRY THERMAL

2018-7-27  thermal transmittance of a two -core concrete block wall system can be modeled using the simple technique of adding the thermal resistances in series and parallel by contributing percent areas. A schematic of a typical two-core concrete block filled with perlite is show below together with a mathematical analog.

Get price

Thermal Transmittance – MANSOOR CONCRETE BLOCK

Concrete Block Manufacturing MANSOOR CONCRETE BLOCK INDUSTRY LLC (MaCon) is a Dubai Municipality registered concrete block manufacturing transporting company having its office factory situated at Jebel Ali industrial area No.1, Dubai - Abu Dhabi road.

Get price

Thermal performance of insulated concrete blocks: Series ...

2018-5-29  Site observation and detailed finite element thermal modelling were employed and with these techniques it was possible to show how poor storage and handling damaged individual insulated elements and more importantly how the mortar acted as a cold bridge across the insulation. This highlighted the need to consider all thermal bridging of a wall construction if the true thermal

Get price

Determination of thermal characteristics of standard and ...

The lighter weight, improved thermal properties and better acoustic insulation of hollow-core concrete blocks are few of the characteristics that one encounters when comparing them to traditional Maltese globigerina limestone solid blocks. As a result, hollow concrete blocks have recently been in

Get price

In situ measurement of thermal transmittance and thermal ...

Ahmad et al. [20] measured the thermal transmittance of the hollow reinforced precast concrete walls by the HFM under the average ambient air temperature of 35-40°C and the air-conditioning ...

Get price

Experimental Research on the Thermal Performance of ...

A type of concrete hollow block with typical structure and a common phase change material (PCM) were adopted. The PCM was filled into the hollow blocks by which the multiform composite PCM hollow blocks were made. The temperature-changing hot chamber method was used to test the thermal performance of block walls. The enthalpy method and the effective heat capacity method were used to calculate ...

Get price

THEORETICAL ANALYSIS OF THERMAL PERFORMANCE

2012-2-17  thermal transmittance, thermal lag and the solar heat gain coefficient. In order to calculate the transmittance and the thermal lag, one should consider if the wall is composed of homogeneous layers (containing thermal resistances in series) or non-homogeneous and homogeneous layers (with thermal resistances in parallel).

Get price

Evaluation of Thermal Properties of Cement Exfoliated ...

2018-9-24  Properties such as thermal resistivity, thermal transmittance, thermal performance index (TPI), and thermal damping are investigated using empirical relations and compared to that of the conventional cement-mortar specimen. The compressive strength was determined in accordance with the ASTM C31 standards for 7 and 28 days of curing.

Get price

Development of a Hollow Concrete Block with Improved ...

2017-12-17  Development of a Hollow Concrete Block with Improved Thermal Properties, Having Same Dimensions and Load Bearing Characteristics as the Traditional HCB (THERMHCB) Galea Curmi Engineering Services Ltd. (Lead Partner) JCR Ltd. (Industrial Partner) University of Malta (Academic Partner) Supported by the MCST RI Programme RI-2012-058

Get price

(PDF) Evaluating in-situ thermal transmittance of green ...

The results obtained indicate an important characteristic in term of thermal Inertia, for a value of thermal transmittance of U= 0.55 W.m ⁻² .K ⁻¹ , we need 0.9m thickness of wall using the ...

Get price
Contact us

Submit online

Please leave a message below and we will contact you as soon as possible.