Pub Date : 2020-08-01DOI: 10.15377/2409-9821.2020.07.2
N. Al-Khalidy, Cfd Wind Slr Consulting Australia, Energy Technical Discipline
Wind-driven natural cross ventilation to many single-aspect apartments can be achieved via building indentations and façade articulation. The ventilation rate of these apartments will rely on pressures differences between openings caused by approaching wind pressure, local wind climate and interaction with the surrounding built environment and external pressure gradients on the building indentations or any other facades articulation and their potential driving force on natural ventilation. Detailed simulation methods are therefore required to consider all above mentioned parameters and provide internal and external airflow information to the design team to allow for design modifications or refinement where required to provide robust natural cross ventilation for such apartments. This study assesses the above parameters for a proposed development, designed with recesses and slots to enhance natural cross ventilation in single-sided apartments, and presents a reliable procedure to advise on compliance with national and/or international design guidelines utilising an advanced combined outdoor-indoor Computational Fluid Flow (CFD) analysis integrated with localized weather data for the project site.
{"title":"Better Natural Ventilation Design for Single Sided Apartments Utilising Computational Fluid Dynamics","authors":"N. Al-Khalidy, Cfd Wind Slr Consulting Australia, Energy Technical Discipline","doi":"10.15377/2409-9821.2020.07.2","DOIUrl":"https://doi.org/10.15377/2409-9821.2020.07.2","url":null,"abstract":"Wind-driven natural cross ventilation to many single-aspect apartments can be achieved via building indentations and façade articulation. The ventilation rate of these apartments will rely on pressures differences between openings caused by approaching wind pressure, local wind climate and interaction with the surrounding built environment and external pressure gradients on the building indentations or any other facades articulation and their potential driving force on natural ventilation. Detailed simulation methods are therefore required to consider all above mentioned parameters and provide internal and external airflow information to the design team to allow for design modifications or refinement where required to provide robust natural cross ventilation for such apartments. This study assesses the above parameters for a proposed development, designed with recesses and slots to enhance natural cross ventilation in single-sided apartments, and presents a reliable procedure to advise on compliance with national and/or international design guidelines utilising an advanced combined outdoor-indoor Computational Fluid Flow (CFD) analysis integrated with localized weather data for the project site.","PeriodicalId":15092,"journal":{"name":"Journal of Architectural Engineering Technology","volume":"88 1","pages":"13-22"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86099497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-01DOI: 10.15377/2409-9821.2020.07.4
W. Brisibe, I. Brown
Floods are generally seen as natural occurrences with other underlying causal factors. These factors are both natural and anthropogenic in nature and often induce or exacerbate flood episodes in the environment. As it were, while some of these factors stem from natural ecological cycles, others are engendered by accumulated anthropogenic actions or inactions. This study aims to examine three independent documents comprising of two technical reports commissioned by the Bayelsa State government in Yenagoa and contiguous neighborhoods and narratives from a PhD flood research with a view to understanding the nature and dynamics of anthropogenic actions causing flooding in Bayelsa State. The objectives include; a systematic review of the government commissioned technical reports on floods in Yenagoa and other related documents; identify and highlight both natural and anthropogenic causes of flooding in the study area; recommend an appropriate course of action. The study adopted direct personal observation, photography and secondary data analysis to obtain data. Findings from the combination of these documents highlight some of the deliberate human actions and/or inactions taken by both Government and private developers regarding incidents of flooding within the Yenagoa Metropolis. Based on the document’s review, three key anthropogenic actions were identified; building construction and other physical development activities, waste management and drainage systems and public infrastructure development. Specific recommendations such as the adoption of a holistic approach towards harmonized flood data management framework, effective implementation of such policies to tackle these identified challenges, undertake EIA, hydrologic and hydrographic studies, as well as base line studies before embarking on any developmental projects, desilting of clogged drainage culverts and proper alignment of road projects to reduce incursion and subsequent impediment of free flow of runoffs were made.
{"title":"Building Construction, Road Works and Waste Management: Impact of Anthropogenic Actions on Flooding in Yenagoa, Nigeria","authors":"W. Brisibe, I. Brown","doi":"10.15377/2409-9821.2020.07.4","DOIUrl":"https://doi.org/10.15377/2409-9821.2020.07.4","url":null,"abstract":"Floods are generally seen as natural occurrences with other underlying causal factors. These factors are both natural and anthropogenic in nature and often induce or exacerbate flood episodes in the environment. As it were, while some of these factors stem from natural ecological cycles, others are engendered by accumulated anthropogenic actions or inactions. This study aims to examine three independent documents comprising of two technical reports commissioned by the Bayelsa State government in Yenagoa and contiguous neighborhoods and narratives from a PhD flood research with a view to understanding the nature and dynamics of anthropogenic actions causing flooding in Bayelsa State. The objectives include; a systematic review of the government commissioned technical reports on floods in Yenagoa and other related documents; identify and highlight both natural and anthropogenic causes of flooding in the study area; recommend an appropriate course of action. The study adopted direct personal observation, photography and secondary data analysis to obtain data. Findings from the combination of these documents highlight some of the deliberate human actions and/or inactions taken by both Government and private developers regarding incidents of flooding within the Yenagoa Metropolis. Based on the document’s review, three key anthropogenic actions were identified; building construction and other physical development activities, waste management and drainage systems and public infrastructure development. Specific recommendations such as the adoption of a holistic approach towards harmonized flood data management framework, effective implementation of such policies to tackle these identified challenges, undertake EIA, hydrologic and hydrographic studies, as well as base line studies before embarking on any developmental projects, desilting of clogged drainage culverts and proper alignment of road projects to reduce incursion and subsequent impediment of free flow of runoffs were made.","PeriodicalId":15092,"journal":{"name":"Journal of Architectural Engineering Technology","volume":"245 1","pages":"36-46"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76324227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-01DOI: 10.15377/2409-9821.2020.07.3
D. Bajno
Historic buildings, as well as much newer ones, with architecturally attractive facades, will not be thermomodernized from the outside, Because of their high value stands in the way. One such case is mentioned in this article, in which an analysis of external vertical partitions was carried out, in terms of heat and humidity in a small residential building located in southern Poland and built in 1930. The article describes a hygrothermal analysis of the above mentioned partitions, before and after thermomodernization, which should assess the legitimacy and effectiveness of using controversial methods of insulation of external building partitions from their internal sides. The article is a summary of a five-year observation and research of the object, after its thermomodernization in 2015. The analysis was focused on its vertical partitions.
{"title":"Thermomodernization of Historical Buildings with Residential Facades","authors":"D. Bajno","doi":"10.15377/2409-9821.2020.07.3","DOIUrl":"https://doi.org/10.15377/2409-9821.2020.07.3","url":null,"abstract":"Historic buildings, as well as much newer ones, with architecturally attractive facades, will not be thermomodernized from the outside, Because of their high value stands in the way. One such case is mentioned in this article, in which an analysis of external vertical partitions was carried out, in terms of heat and humidity in a small residential building located in southern Poland and built in 1930. The article describes a hygrothermal analysis of the above mentioned partitions, before and after thermomodernization, which should assess the legitimacy and effectiveness of using controversial methods of insulation of external building partitions from their internal sides. The article is a summary of a five-year observation and research of the object, after its thermomodernization in 2015. The analysis was focused on its vertical partitions.","PeriodicalId":15092,"journal":{"name":"Journal of Architectural Engineering Technology","volume":"53 1","pages":"23-35"},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85607334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-20DOI: 10.15377/2409-9821.2020.07.1
E. Krüger, Ticiana Patel Weiss Trento, Daniel Trento
{"title":"Application of Arduino-Based Systems as Monitoring Tools in Indoor Comfort Studies: A Bibliometric Analysis","authors":"E. Krüger, Ticiana Patel Weiss Trento, Daniel Trento","doi":"10.15377/2409-9821.2020.07.1","DOIUrl":"https://doi.org/10.15377/2409-9821.2020.07.1","url":null,"abstract":"","PeriodicalId":15092,"journal":{"name":"Journal of Architectural Engineering Technology","volume":"1 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2020-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77310863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-25DOI: 10.15377/2409-9821.2019.06.3
H. Lai
With the advances in material synthesis technologies, functionally graded materials (FGMs) are developed to use in high temperature structurals due to the excellent high temperature mechanical properties. To facilitate wide use of FGMs in high temperature structures, finite element method (FEM) was used in this paper to investigate effects of creep resistant properties gradients on creep crack initiation (CCI) in FGMs, with crack parallel to the gradient. Results indicated that when creep resistant properties increased in the crack growth direction, CCI was retarded by creep properties gradients. However, CCI was accelerated by creep properties gradients when creep resistant properties decreased in the crack growth direction. CCI position occurred in the two symmetric slanted planes of the initial crack, regardless of the gradient variation of creep resistant properties.
{"title":"Finite Element Analysis of Creep Crack Initiation in Functionally Graded Materials with Crack Parallel to the Gradient","authors":"H. Lai","doi":"10.15377/2409-9821.2019.06.3","DOIUrl":"https://doi.org/10.15377/2409-9821.2019.06.3","url":null,"abstract":"With the advances in material synthesis technologies, functionally graded materials (FGMs) are developed to use in high temperature structurals due to the excellent high temperature mechanical properties. To facilitate wide use of FGMs in high temperature structures, finite element method (FEM) was used in this paper to investigate effects of creep resistant properties gradients on creep crack initiation (CCI) in FGMs, with crack parallel to the gradient. Results indicated that when creep resistant properties increased in the crack growth direction, CCI was retarded by creep properties gradients. However, CCI was accelerated by creep properties gradients when creep resistant properties decreased in the crack growth direction. CCI position occurred in the two symmetric slanted planes of the initial crack, regardless of the gradient variation of creep resistant properties.","PeriodicalId":15092,"journal":{"name":"Journal of Architectural Engineering Technology","volume":"18 1","pages":"17-23"},"PeriodicalIF":0.0,"publicationDate":"2019-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80754204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-25DOI: 10.15377/2409-9821.2019.06.5
Jiying Liu
The radiant floor cooling system, as a thermally activated building system, has attracted significant attention as it can save energy consumption and shift the building load. However, due to its characteristic that building thermal mass has a significant influence on the system performance and indoor environment, the control strategies should be seriously accounted for. Moreover, its performance is highly related to the shift condition of cooling load during the daytime and different weather conditions, therefore, realistic operation will cause the increments of peak load if the control strategy is neglected. This study presented two common strategies including intermittent operation and weatherforecast-based control strategies. The radiant floor cooling system combined with displacement ventilation system in a typical office building located in Jinan was established using the TRNSYS program. The results showed that the energy consumption decreased by 3.3% to 7.5% when the different intermittent operation strategies were applied. The weatherforecast-based control strategy can improve indoor thermal environment by increasing/deceasing the water supply flow rate by up to 25% in advance. This study concluded that the application of intermittent operation and weather-forecastbased control strategies can regulate the operation of radiant floor system and reduce the building energy use.
{"title":"Optimization of Control Strategies for the Radiant Floor Cooling System Combined with Displacement Ventilation: A Case study of an Office Building in Jinan, China","authors":"Jiying Liu","doi":"10.15377/2409-9821.2019.06.5","DOIUrl":"https://doi.org/10.15377/2409-9821.2019.06.5","url":null,"abstract":"The radiant floor cooling system, as a thermally activated building system, has attracted significant attention as it can save energy consumption and shift the building load. However, due to its characteristic that building thermal mass has a significant influence on the system performance and indoor environment, the control strategies should be seriously accounted for. Moreover, its performance is highly related to the shift condition of cooling load during the daytime and different weather conditions, therefore, realistic operation will cause the increments of peak load if the control strategy is neglected. This study presented two common strategies including intermittent operation and weatherforecast-based control strategies. The radiant floor cooling system combined with displacement ventilation system in a typical office building located in Jinan was established using the TRNSYS program. The results showed that the energy consumption decreased by 3.3% to 7.5% when the different intermittent operation strategies were applied. The weatherforecast-based control strategy can improve indoor thermal environment by increasing/deceasing the water supply flow rate by up to 25% in advance. This study concluded that the application of intermittent operation and weather-forecastbased control strategies can regulate the operation of radiant floor system and reduce the building energy use.","PeriodicalId":15092,"journal":{"name":"Journal of Architectural Engineering Technology","volume":"170 1","pages":"33-48"},"PeriodicalIF":0.0,"publicationDate":"2019-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75474783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-12-25DOI: 10.15377/2409-9821.2019.06.4
Gökhan Barış Sakcalı
{"title":"Seismic Behavior of Historical Masonry Bridges: The Case Study of Irgandi Bridge","authors":"Gökhan Barış Sakcalı","doi":"10.15377/2409-9821.2019.06.4","DOIUrl":"https://doi.org/10.15377/2409-9821.2019.06.4","url":null,"abstract":"","PeriodicalId":15092,"journal":{"name":"Journal of Architectural Engineering Technology","volume":"1 1","pages":"24-32"},"PeriodicalIF":0.0,"publicationDate":"2019-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89756304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.4172/2168-9717.1000222
Zulfiqar Ar
{"title":"Modern Principles and Practice in Planning and Designing of Healthcare Services (An Overview: Latest Trends of Design in Indian Hospitals)","authors":"Zulfiqar Ar","doi":"10.4172/2168-9717.1000222","DOIUrl":"https://doi.org/10.4172/2168-9717.1000222","url":null,"abstract":"","PeriodicalId":15092,"journal":{"name":"Journal of Architectural Engineering Technology","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74530654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.4172/2168-9717.1000223
A. Rizk, H. Dewer, H. S. Seddeq, R. Aly-Aldean
Acoustic and thermal performance greatly affect in lecture halls as, acoustic, architecture and thermal treatments play an important role to enhance acoustic and thermal performance in space and therefore increasing sentiment of acoustic and thermal comfort in space. This research get down to the role of acoustic, architecture and thermal treatments to enhance acoustic and thermal performance of internal acoustic and thermal environment for main lecture hall of Tanta engineering whereas, the hall suffers great acoustic and thermal problems, all because of several reasons, most important it, sky light of ceiling, integration work done between acoustic and thermal treatments to achieve best acoustic and thermal performance and using ODEON software to evaluate suggested treatments acoustically and selection the best then evaluate it by DESIGN BUILDER software to calculate the range of energy consumption reduce in hall after these suggested treatments. It helped to enhance acoustic and thermal performance level in hall and increasing sentiment of acoustic and thermal comfort in hall. RT value of lecture hall reduce from RT=3.5 Hz to RT=0.95 Hz and the range of energy consumption reduce in hall after these treatments 70%.
{"title":"Enhancement of Acoustical Performance in Universities' Educational Spaces","authors":"A. Rizk, H. Dewer, H. S. Seddeq, R. Aly-Aldean","doi":"10.4172/2168-9717.1000223","DOIUrl":"https://doi.org/10.4172/2168-9717.1000223","url":null,"abstract":"Acoustic and thermal performance greatly affect in lecture halls as, acoustic, architecture and thermal treatments play an important role to enhance acoustic and thermal performance in space and therefore increasing sentiment of acoustic and thermal comfort in space. This research get down to the role of acoustic, architecture and thermal treatments to enhance acoustic and thermal performance of internal acoustic and thermal environment for main lecture hall of Tanta engineering whereas, the hall suffers great acoustic and thermal problems, all because of several reasons, most important it, sky light of ceiling, integration work done between acoustic and thermal treatments to achieve best acoustic and thermal performance and using ODEON software to evaluate suggested treatments acoustically and selection the best then evaluate it by DESIGN BUILDER software to calculate the range of energy consumption reduce in hall after these suggested treatments. It helped to enhance acoustic and thermal performance level in hall and increasing sentiment of acoustic and thermal comfort in hall. RT value of lecture hall reduce from RT=3.5 Hz to RT=0.95 Hz and the range of energy consumption reduce in hall after these treatments 70%.","PeriodicalId":15092,"journal":{"name":"Journal of Architectural Engineering Technology","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82543791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：