Year 2020, Volume 4 , Issue 3, Pages 121 - 144 2020-09-30

Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit

Erdem CUCE [1] , Pinar Mert CUCE [2] , Ahmet Burhaneddin BESİR [3]


Heat loss/gain through the walls accounts for about 30% of the total building energy losses. Bricks are indispensable parts of buildings as a very common masonry wall unit; hence the present work aims at optimising thermal resistance of lightweight concrete hollow bricks through a CFD based numerical research. The optimisation is conducted over a certain number of independent variables such as hollow geometry and design, number of hollow rows across the heat transfer path and hollow depth for natural convection aspects within the hollow enclosure. A reliable CFD software ANSYS FLUENT 18.1 is utilised in the research. The accuracy of the CFD results is justified first through the reference model brick (RMB). Overall heat transfer coefficient (U-value) of RMB is determined to be 0.916 W/m2. K, which is in good accordance with the manufacturer’s data report (0.9 W/m2.K). Following this, parametric research is carried out for various scenarios to optimise the U-value as a function of brick mass. Based on the findings, the maximum improvement is found to be about 53% (U-value 0.43 W/m2. K) through the case of B48 which has an h-ratio of 1 (continuous hollow from top to bottom). Moreover, depending on the increase in h-ratio, it is achieved that the thermal performance of the bricks proportionally increases. The minimum weight of the brick design (B45) is found to be 7.645 kg and the corresponding U-value is obtained as 0.44 W/m2. K.
Hollow bricks, Lightweight concrete, Numerical simulation, Thermal insulation, U-value
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Primary Language en
Subjects Engineering, Mechanical
Journal Section Research Articles
Authors

Orcid: 0000-0003-0150-4705
Author: Erdem CUCE (Primary Author)
Institution: Recep Tayyip Erdogan University
Country: Turkey


Orcid: 0000-0002-6522-7092
Author: Pinar Mert CUCE
Institution: Recep Tayyip Erdogan University
Country: Turkey


Orcid: 0000-0002-2496-0001
Author: Ahmet Burhaneddin BESİR
Institution: Recep Tayyip Erdogan University
Country: Turkey


Dates

Publication Date : September 30, 2020

Bibtex @research article { jes775961, journal = {Journal of Energy Systems}, issn = {}, eissn = {2602-2052}, address = {}, publisher = {Erol KURT}, year = {2020}, volume = {4}, pages = {121 - 144}, doi = {10.30521/jes.775961}, title = {Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit}, key = {cite}, author = {Cuce, Erdem and Cuce, Pinar Mert and Besi̇r, Ahmet Burhaneddin} }
APA Cuce, E , Cuce, P , Besi̇r, A . (2020). Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit . Journal of Energy Systems , 4 (3) , 121-144 . DOI: 10.30521/jes.775961
MLA Cuce, E , Cuce, P , Besi̇r, A . "Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit" . Journal of Energy Systems 4 (2020 ): 121-144 <https://dergipark.org.tr/en/pub/jes/issue/56821/775961>
Chicago Cuce, E , Cuce, P , Besi̇r, A . "Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit". Journal of Energy Systems 4 (2020 ): 121-144
RIS TY - JOUR T1 - Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit AU - Erdem Cuce , Pinar Mert Cuce , Ahmet Burhaneddin Besi̇r Y1 - 2020 PY - 2020 N1 - doi: 10.30521/jes.775961 DO - 10.30521/jes.775961 T2 - Journal of Energy Systems JF - Journal JO - JOR SP - 121 EP - 144 VL - 4 IS - 3 SN - -2602-2052 M3 - doi: 10.30521/jes.775961 UR - https://doi.org/10.30521/jes.775961 Y2 - 2020 ER -
EndNote %0 Journal of Energy Systems Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit %A Erdem Cuce , Pinar Mert Cuce , Ahmet Burhaneddin Besi̇r %T Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit %D 2020 %J Journal of Energy Systems %P -2602-2052 %V 4 %N 3 %R doi: 10.30521/jes.775961 %U 10.30521/jes.775961
ISNAD Cuce, Erdem , Cuce, Pinar Mert , Besi̇r, Ahmet Burhaneddin . "Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit". Journal of Energy Systems 4 / 3 (September 2020): 121-144 . https://doi.org/10.30521/jes.775961
AMA Cuce E , Cuce P , Besi̇r A . Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit. JES. 2020; 4(3): 121-144.
Vancouver Cuce E , Cuce P , Besi̇r A . Improving thermal resistance of lightweight concrete hollow bricks: A numerical optimisation research for a typical masonry unit. Journal of Energy Systems. 2020; 4(3): 121-144.