Y. M. Karkarna, Ali Bahadori-Jahromi, Hamid Zolghdr Jahromi, Emily Halliwell
{"title":"An investigation into the tension lap splices","authors":"Y. M. Karkarna, Ali Bahadori-Jahromi, Hamid Zolghdr Jahromi, Emily Halliwell","doi":"10.36828/efs.229","DOIUrl":"https://doi.org/10.36828/efs.229","url":null,"abstract":"The purpose of this study is to investigate the effect of lap joint length on structural performance under ultimate load using both nonlinear numerical analysis and laboratory experiments. Three-dimensional (3D) finite element models were employed for the numerical simulations, which were carried out using LUSAS software. A typical four-point bending system was modelled in order to analyze the impact of lap length. In total, 24 cases of lap length were studied across three concrete grades: C30, C45, and C60. The study also examined the influence of beam depth, shear link spacing, and concrete grade on lap joint performance. In order to validate the reliability of the 3D model, experimental data from RC beam test specimens were used.","PeriodicalId":294732,"journal":{"name":"Engineering Future Sustainability","volume":"19 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116695588","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}
A. Hasan, Ali Bahadori-Jahromi, A. Mylona, Mark Barthorpe
{"title":"A quantitative case study to assess the performance of UK supermarket buildings in relation to future climate change and modern construction techniques (MMCs)","authors":"A. Hasan, Ali Bahadori-Jahromi, A. Mylona, Mark Barthorpe","doi":"10.36828/efs.205","DOIUrl":"https://doi.org/10.36828/efs.205","url":null,"abstract":"This study investigates variousmethods of construction of non-domestic buildings and its effect on buildingperformance of a typical UK supermarket under the worst-case scenarios of 2080speriod of climate change. Focus is specifically on the three LIDL-approvedconstruction methods and their building materials to quantify operationalenergy usage and carbon emissions. The ThermalAnalysis Software (TAS), a dynamic building simulation package, is used toquantify the results, generating reports while Chartered Institution of BuildingServices Engineers (CIBSE) provides with the current and future weather filesto be tested. The case study is based on a newly built single-story supermarketbuilding located in Norwich and uses three models of building P1, P2 and P3with specific set of building materials. The results show that models P1 and P2have percentage increase of close to 8.80% of energy consumption and carbonemission however, P3 have less than 8.50% increase as compared to the currentconditions of the building making it a slightly better choice. It shows that aprecast concrete and glulam beam structure offer the best resistance againstthe worst climate change scenario. This investigation joins the two differentsides of built environment, construction and operation while presenting theresults.","PeriodicalId":294732,"journal":{"name":"Engineering Future Sustainability","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129002337","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}
Augustine Blay-Armah, Ali Bahodori-Jahromi, A. Mylona, Mark Barthorpe
{"title":"End-of-life management strategies to mitigate the impacts of building components on climate change: A case study of a supermarket building","authors":"Augustine Blay-Armah, Ali Bahodori-Jahromi, A. Mylona, Mark Barthorpe","doi":"10.36828/efs.210","DOIUrl":"https://doi.org/10.36828/efs.210","url":null,"abstract":"The reduction of embodied carbon emissions in buildings has a significant impact on mitigating climate change. Current studies suggest that circular economy principles have the potential to reduce environmental impacts. Recycling and reuse of deconstructed building materials during the end of the useful lifespan of a building can help reduce carbon emissions. A process-based life cycle assessment was performed for the end-of-life phase of a steel frame and precast concrete supermarket building in the UK. The amount of potential carbon emissions reduction through the adoption of a specific end-of-life management strategy was quantified. The results indicate that reusing building components provides the greatest reduction of 72% compared to landfill, whilst recycling achieves a 41% reduction. Additionally, a comparison between reuse and recycling reveals a reduction of about 33%, indicating reuse should be considered a priority in minimising embodied carbon emissions of buildings.","PeriodicalId":294732,"journal":{"name":"Engineering Future Sustainability","volume":"255 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129064078","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}
{"title":"Analysis of Hydrogen Production Methods Using the Analytic Hierarchy Process","authors":"Lucy McKenzie, Denise Lee, J. Amoako-Attah","doi":"10.36828/efs.206","DOIUrl":"https://doi.org/10.36828/efs.206","url":null,"abstract":"The ever-growing evidence of climate emergency continues to drive the need for innovative solutions to reduce the release of anthropogenic harmful gases. Continuing to heavily rely on energy originating from fossil fuels remains non-sustainable owing to their limited, exhausting supplies, dependence on politically insecure sources and adverse environmental impacts. These considerations, coupled with the current desperate need for energy security, have driven research towards finding cleaner alternatives. Hydrogen has the potential to reduce 5Gt of CO2 emissions annually, create 30 million new jobs and power over 400 million cars by 2050. However, for hydrogen to be justified and to be successful in feeding the world's appetite for energy, its full life cycle, including its production methods, is required to be safe, efficient, affordable and environmentally benign. This paper aims to review the status of the potential hydrogen production methods that have strong eligibility within the UK and facilitate the much-required wider discussion around hydrogen by employing a multi-disciplinary approach. The analytic hierarchy process (AHP) has been employed to allow for pairwise comparisons of decision criteria and ranks decision alternatives using expert knowledge. Six hydrogen production methods (Green Electrolysis, SMR, ATR, POX, Anaerobic Digestion and Gasification) were chosen for review against nine parameters to determine which hydrogen production method(s) present most viable for the UK to aid in decarbonising the energy system. Collating performance scores against relevant parameters from industry experts allowed for a non-bias, holistic view of the production methods. Green electrolysis was found to be the better method (score 131) when assessed against all but one parameter, resulting in the method being considered the most viable option for the UK, however, considerations are to be made for electrolyser longevity and cost. SMR scored second most viable option (score 125), however, despite presenting as an effective production method for the UK based on the performance scores, this does not reflect the current deployment or construction rate of SMR with CCS projects in the UK. ATR (score 114) and POX (score 116) carry similar characteristics and subsequently scored similarly in performance scores. Anaerobic digestion (score 104) and gasification (score 101) scored amongst the lowest as their challenge is to scale in order to reach government goals as set out in the Government Hydrogen Strategy. ","PeriodicalId":294732,"journal":{"name":"Engineering Future Sustainability","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124956306","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}
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