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Prof. Dr. Ali Bahadori Jahromi
School of Computing and Engineering, University Of West London, London, UK

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0 Building Design
0 Building Engineering
0 Building Envelope
0 Building Simulation
0 Sustainable Engineering

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Short Biography

Ali Bahadori-Jahromi is a Professor of Civil Engineering, course leader for undergraduate and postgraduate Civil and Environmental Engineering including the Civil Engineering Degree Apprenticeship, and head of the Building Performance and Climate Change research group. His research group produced several research outputs, a number of PhD graduates for the civil and built environment, and attracted collaboration and research funding from leading companies and research centres including: The Hilton, The Concrete Centre, XP Solutions, and The Chartered Institution of Building Services Engineers (CIBSE). Professor Jahromi is a Fellow of the Institution of Civil Engineers and is a Chartered Engineer (CEng) recognised by the Engineering Council. He is also a member of the Joint Board of Moderators (JBM), which is the UK accreditation body for Civil Engineering courses and Chartered Examiner for the Institution of Civil Engineers.

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Journal article
Published: 16 July 2021 in Sustainability
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Studies conducted by major national and international scientific bodies have indisputably concluded that the increase in anthropogenic greenhouse gas emissions (GHG) since the mid-20th century has led to irreversible changes in the climate. Data has shown that the contribution of the building sector accounts for 39% of these emissions. Reducing GHG emissions associated with the construction phase of buildings, or embodied carbon (EC), will prevent GHG emissions from entering the atmosphere earlier, reducing the negative impacts. However, to achieve any meaningful reduction, there is a need for consistency and accuracy in the calculations. The accuracy of these calculations is primarily tied to the accuracy of embodied carbon factors (ECF) used in the calculations, values determining the environmental impact of a product or procedure per unit weight. The emissions of any product can be calculated by performing a Life Cycle Assessment (LCA). While the requirements for carrying out an LCA have been standardised in ISO14044, the lack of a definitive national ECF database in the UK means that EC calculations can vary drastically based on the chosen database. An LCA has been carried out on a standard Lidl supermarket design within the A1–A3 boundary. For the calculation, the ECFs were sourced from two different databases, using the GHG conversion factor data published in 2020 by the UK Department of Energy & Climate Change and data published in 2019 by the Inventory of Carbon and Energy (ICE). The latter is currently accepted as the most consistent database for carbon factors in the UK. This study showed that using a more detailed database compared to using a more general database could result in a 35.2% reduction of embodied carbon, while using more detailed data from a single database can reduce it by a further 5.5%. It is necessary to establish the most accurate baseline for embodied carbon so that any carbon reduction attempts can be as effective as possible.

ACS Style

Golnaz Mohebbi; Ali Bahadori-Jahromi; Marco Ferri; Anastasia Mylona. The Role of Embodied Carbon Databases in the Accuracy of Life Cycle Assessment (LCA) Calculations for the Embodied Carbon of Buildings. Sustainability 2021, 13, 7988 .

AMA Style

Golnaz Mohebbi, Ali Bahadori-Jahromi, Marco Ferri, Anastasia Mylona. The Role of Embodied Carbon Databases in the Accuracy of Life Cycle Assessment (LCA) Calculations for the Embodied Carbon of Buildings. Sustainability. 2021; 13 (14):7988.

Chicago/Turabian Style

Golnaz Mohebbi; Ali Bahadori-Jahromi; Marco Ferri; Anastasia Mylona. 2021. "The Role of Embodied Carbon Databases in the Accuracy of Life Cycle Assessment (LCA) Calculations for the Embodied Carbon of Buildings." Sustainability 13, no. 14: 7988.

Journal article
Published: 07 July 2021 in Sustainability
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In light of the recent launch of the Minimum Energy Efficiency Standard targeting the energy performance of commercial buildings, this study compares the energy performance certificates of three UK hotels generated by two different software, EDSL TAS and SBEM, both accredited by the UK government for the purpose. Upon finding the results discrepant, the study finds that the two software’s different assumptions for the air permeability rate contribute to the discrepancy. While modifying this value makes the results from the two software more aligned, further issues regarding the validation process arise. The study continues to find that the underlying issue can be found within the National Calculation Methodology’s assumption about domestic hot water consumption in hotels. These assumptions are compulsory to follow when generating a non-domestic energy performance certificate in the UK, therefore, any uncertainties within them can affect all the buildings seeking an energy performance certificate within that sector. Finally, the study discusses that, for meeting the carbon dioxide mitigation goals, it is necessary to make changes to the current procedure of energy performance certificate generating in the UK to increase its reliability.

ACS Style

Shiva Amirkhani; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook; Hooman Tahayori; Hexin Zhang. Uncertainties in Non-Domestic Energy Performance Certificate Generating in the UK. Sustainability 2021, 13, 7607 .

AMA Style

Shiva Amirkhani, Ali Bahadori-Jahromi, Anastasia Mylona, Paulina Godfrey, Darren Cook, Hooman Tahayori, Hexin Zhang. Uncertainties in Non-Domestic Energy Performance Certificate Generating in the UK. Sustainability. 2021; 13 (14):7607.

Chicago/Turabian Style

Shiva Amirkhani; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook; Hooman Tahayori; Hexin Zhang. 2021. "Uncertainties in Non-Domestic Energy Performance Certificate Generating in the UK." Sustainability 13, no. 14: 7607.

Journal article
Published: 03 March 2021 in Engineering Structures
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This paper presents an experimental investigation of the shear performance of RC beams strengthened with near surface mounted (NSM) carbon fibre reinforced polymer (CFRP) prestressed concrete prisms (PCPs). The shear behaviour of strengthened beams can be affected by several design variables. In this research, the effect of the following parameters were considered: the prestress level, inclination and spacing of the CFRP-PCPs, and material type of the prism. The control beam had conventional shear steel reinforcement only while the other seven beams were shear strengthened with CFRP-PCPs by varying design parameters mentioned above. All the beams were tested under monotonic loading until they reached the failure load. The experimental results showed that the NSM CFRP-PCPs strengthening technique improves the shear performance of the beams effectively. The strengthened beams that applied the CFRP-PCPs at an inclination of 45° were more efficient in improving the shear capacity compared to vertical CFRP-PCPs. The shear capacity and deformation were enhanced with the increase of prestressing levels of CFRP rods and the decrease of CFRP-PCPs spacing. The failure modes of the strengthened beams were influenced mainly by the spacing and the inclination of the CFRP-PCPs. Moreover, the material type of the prism had little influence on the effectiveness of shear strengthening. The analytical model presented was developed to estimate the shear contribution of NSM CFRP-PCPs and the model was found to predict the shear capacity of the tested beams well.

ACS Style

Yu Deng; Fuqiang Ma; Hexin Zhang; Simon H.F Wong; Pankaj Pankaj; Lixue Zhu; Lixing Ding; Ali Bahadori-Jahromi. Experimental study on shear performance of RC beams strengthened with NSM CFRP prestressed concrete prisms. Engineering Structures 2021, 235, 112004 .

AMA Style

Yu Deng, Fuqiang Ma, Hexin Zhang, Simon H.F Wong, Pankaj Pankaj, Lixue Zhu, Lixing Ding, Ali Bahadori-Jahromi. Experimental study on shear performance of RC beams strengthened with NSM CFRP prestressed concrete prisms. Engineering Structures. 2021; 235 ():112004.

Chicago/Turabian Style

Yu Deng; Fuqiang Ma; Hexin Zhang; Simon H.F Wong; Pankaj Pankaj; Lixue Zhu; Lixing Ding; Ali Bahadori-Jahromi. 2021. "Experimental study on shear performance of RC beams strengthened with NSM CFRP prestressed concrete prisms." Engineering Structures 235, no. : 112004.

Journal article
Published: 22 December 2020 in Sustainability
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The large-scale shifts in weather patterns and an unprecedented change in climate have given rise to the interest in how climate change will affect the carbon emissions of supermarkets. This study investigates the implications of future climatic conditions on the operation of supermarkets in the UK. The investigation was conducted by performing a series of energy modelling simulations on a LIDL supermarket model in London, based on the UK Climate Projections (UKCP09) future weather years provided by the Chartered Institution of Building Services Engineers (CIBSE). Computational fluid dynamic (CFD) simulations were used to perform the experiment, and the baseline model was validated against the actual data. This investigation ascertains and quantifies the annual energy consumption, carbon emissions, and cooling and heating demand of the supermarket under different climatic projections, which further validate the scientific theory of annual temperature rise as a result of long-term climatic variation. The maximum percentage increase for the annual energy consumption for current and future weather data sets observed was 7.01 and 6.45 for the 2050s medium emissions scenario, (90th) percentile and high emissions scenario, (90th) percentile, respectively, and 11.05, 14.07, and 17.68 for the 2080s low emissions scenario, (90th) percentile, medium (90th) percentile and high emissions scenario (90th) percentile, respectively. A similar inclining trend in the case of annual CO2 emissions was observed where the peak increase percentage was 6.80 and 6.24 for the 2050s medium emissions scenario, (90th) percentile and high (90th) percentile, respectively and 10.84, 13.84, and 17.45 for the 2080s low emissions scenario, (90th) percentile, medium emissions scenario (90th) percentile and high emissions scenario (90th) percentile, respectively. The study also analyses the future heating and cooling demands of the three warmest months and three coldest months of the year, respectively, to determine future variance in their relative values.

ACS Style

Agha Hasan; Ali Bahadori-Jahromi; Anastasia Mylona; Marco Ferri; Hooman Tahayori. Investigating the Potential Impact of Future Climate Change on UK Supermarket Building Performance. Sustainability 2020, 13, 33 .

AMA Style

Agha Hasan, Ali Bahadori-Jahromi, Anastasia Mylona, Marco Ferri, Hooman Tahayori. Investigating the Potential Impact of Future Climate Change on UK Supermarket Building Performance. Sustainability. 2020; 13 (1):33.

Chicago/Turabian Style

Agha Hasan; Ali Bahadori-Jahromi; Anastasia Mylona; Marco Ferri; Hooman Tahayori. 2020. "Investigating the Potential Impact of Future Climate Change on UK Supermarket Building Performance." Sustainability 13, no. 1: 33.

Original research
Published: 04 July 2020 in Journal of Ambient Intelligence and Humanized Computing
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During the past decades, the problem of finding leaks in Water Distribution Networks (WDN) has been challenging. The quicker detection of leaks, on one hand prevents water loss and helps avoiding economic and environmental leakage consequences. On the other hand, increasing the speed of leak detection increases the false leak detection that imposes high costs. In this paper, we propose a fast hybrid method using AI algorithms and hydraulic relations for detecting and locating leaks and identifying the volume of losses material. The proposed method relies on simple and cost-effective flow sensors installed on each junction in the pipeline network. We demonstrate how influential features for leak detection would be generated by using hydraulic equations like Hazen–Williams, Darcy–Weisbach and pressure drop. Through exploiting Decision Tree, KNN, random forest, and Bayesian network we build predictive models and based on the pipeline topology, we locate leaks and their pressure. Comparing the results of applying the proposed method on various leak scenarios shows that the proposed method in this paper, outperforms other existing methods.

ACS Style

Zahra Fereidooni; Hooman Tahayori; Ali Bahadori-Jahromi. A hybrid model-based method for leak detection in large scale water distribution networks. Journal of Ambient Intelligence and Humanized Computing 2020, 12, 1613 -1629.

AMA Style

Zahra Fereidooni, Hooman Tahayori, Ali Bahadori-Jahromi. A hybrid model-based method for leak detection in large scale water distribution networks. Journal of Ambient Intelligence and Humanized Computing. 2020; 12 (2):1613-1629.

Chicago/Turabian Style

Zahra Fereidooni; Hooman Tahayori; Ali Bahadori-Jahromi. 2020. "A hybrid model-based method for leak detection in large scale water distribution networks." Journal of Ambient Intelligence and Humanized Computing 12, no. 2: 1613-1629.

Journal article
Published: 07 April 2020 in Sustainability
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In light of the recent launch of the Minimum Energy Efficiency Standard and its expected impact on the commercial buildings sector, this study investigated the impact of adding cooling systems on the annual energy consumption, carbon dioxide emissions and energy performance certificate (EPC) rating of an existing UK hotel. Thermal Analysis Software (TAS) was used to conduct the study, and the baseline model was validated against the actual data. As is the current accepted procedure in EPC generating in the UK, the cooling set points of the guest rooms were set to 25 °C, resulting in a small increase in the annual energy consumption and emission rates, but not enough to change the energy performance certificate rating. Also, it was found that an improvement in energy consumption and energy performance certificate rating of the hotel would be achieved if the new systems replaced the existing heating systems in the guest rooms. Further simulations investigated more realistic situations, in which occupants may decide to keep their rooms at cooler temperatures. The results from this round of simulations showed considerable increase in the energy consumption and emissions of the building; however, these results would not be considered in the current approved procedure for EPC generating.

ACS Style

Shiva Amirkhani; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. Impact of Adding Comfort Cooling Systems on the Energy Consumption and EPC Rating of an Existing UK Hotel. Sustainability 2020, 12, 2950 .

AMA Style

Shiva Amirkhani, Ali Bahadori-Jahromi, Anastasia Mylona, Paulina Godfrey, Darren Cook. Impact of Adding Comfort Cooling Systems on the Energy Consumption and EPC Rating of an Existing UK Hotel. Sustainability. 2020; 12 (7):2950.

Chicago/Turabian Style

Shiva Amirkhani; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. 2020. "Impact of Adding Comfort Cooling Systems on the Energy Consumption and EPC Rating of an Existing UK Hotel." Sustainability 12, no. 7: 2950.

Conference paper
Published: 01 April 2020 in Proceedings of the Institution of Civil Engineers - Engineering Sustainability
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The UK government is committed to reducing carbon emission levels by 80%, comparative to the 1990 baseline, by 2050. “Nearly Zero Energy Buildings” (nZEBs) were introduced by the ‘Energy Performance Building Directive’ (EPBD) [recast] in 2010 as a realistic solution to the intrinsic environmental debt associated with most existing buildings. This paper aims to carry out a life cycle cost analysis (LCCA) to identify what is a cost-optimal level and how best to achieve this by examining and focussing on the exploration of realistically applicable energy efficient measures and retrofit scenarios for a typical UK dwelling. A sensitivity analysis is used to identify uncertainty and provide the expected economic benefits and losses of the applied scenarios over their respective lifetimes. It was established that the total life cycle costs (LCCs) of all the retrofit scenarios was in fact lower than the baseline scenario (i.e. not retrofitting the property) over the 30 years study period. Furthermore, it was found that the cost-optimal level for the retrofit of a typical UK residential dwelling is 75 kWh/m2/yr; meanwhile, the UK’s current nZEB target stands at 44 kWh/m2/yr. Meaning there is a gap between the current NZEB target and the calculated cost-optimal level.

ACS Style

Radwa Salem; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. Life-cycle cost analysis of retrofit scenarios for a UK residential dwelling. Proceedings of the Institution of Civil Engineers - Engineering Sustainability 2020, 173, 57 -72.

AMA Style

Radwa Salem, Ali Bahadori-Jahromi, Anastasia Mylona, Paulina Godfrey, Darren Cook. Life-cycle cost analysis of retrofit scenarios for a UK residential dwelling. Proceedings of the Institution of Civil Engineers - Engineering Sustainability. 2020; 173 (2):57-72.

Chicago/Turabian Style

Radwa Salem; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. 2020. "Life-cycle cost analysis of retrofit scenarios for a UK residential dwelling." Proceedings of the Institution of Civil Engineers - Engineering Sustainability 173, no. 2: 57-72.

Preprint content
Published: 23 March 2020
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The consumption of natural resources in various industrial sectors has caused significant environmental issues to the atmosphere through emission and energy cost due to the extraction and transportation of the materials, along with the availability and long-term damage to the natural resources. In order to address this issue, various solutions have been provided to reduce the amount of consumed natural resources by replacing them with alternative materials such as plastic waste and plastic, as a burden to the environment, is one of those materials being well explored by other researchers due to its worldwide applications and destructive impacts on nature.

The industrial sectors, as massive consumers of natural resources and producers of plastic waste, have shown a continuous responsibility towards innovative alternatives for natural resources. In this regard, plastic materials such as Polyvinyl, Polystyrene, Polyethylene and Polypropylene have been investigated to replace coarse and fine aggregates in the construction without compromising the performance of the concrete mix.

This study aims to investigate the influence of Polypropylene as a fine aggregate replacement on the compressive and tensile strength of concrete cylinder samples after 28 days of curing and assess the impact of temperature on thermal properties of the 28 days cured samples.

ACS Style

Reza Keihani; Ali Bahadori-Jahromi. Investigate the influence of Polypropylene as fine Aggregate Replacement on the mechanical and thermal properties of the concrete mix. 2020, 1 .

AMA Style

Reza Keihani, Ali Bahadori-Jahromi. Investigate the influence of Polypropylene as fine Aggregate Replacement on the mechanical and thermal properties of the concrete mix. . 2020; ():1.

Chicago/Turabian Style

Reza Keihani; Ali Bahadori-Jahromi. 2020. "Investigate the influence of Polypropylene as fine Aggregate Replacement on the mechanical and thermal properties of the concrete mix." , no. : 1.

Journal article
Published: 07 August 2019 in Sustainability
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In order to fulfil the UK government’s ambitious goal of 80% reductions in greenhouse gas emissions by 2050 compared to the levels of 1990s, unprecedented measures for improving the energy efficiency of buildings are needed. This study investigates the impact of a specific type of Low-emissivity (Low-E) window film—Thinsulate Climate Control 75—on the holistic energy consumption of an existing United Kingdom (UK) hotel building. Building modelling and energy simulation software EDSL TAS is used to conduct the study. The result of the simulations demonstrates that by applying Thinsulate films, savings in heating, cooling, and total energy consumptions are achieved by 3%, 20%, and 2.7%, respectively. Also 4.1% and 5.1% savings are achieved in annual CO2 emissions and total energy costs, respectively, while the initial costs may be an issue. This study found that application of Low-E window films results in slightly better energy performance of the hotel regarding its heating-dominant climate. The study also recommends using average annual actual energy consumption data for a time range, instead of picking a single year’s data for validating purposes.

ACS Style

Shiva Amirkhani; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. Impact of Low-E Window Films on Energy Consumption and CO2 Emissions of an Existing UK Hotel Building. Sustainability 2019, 11, 4265 .

AMA Style

Shiva Amirkhani, Ali Bahadori-Jahromi, Anastasia Mylona, Paulina Godfrey, Darren Cook. Impact of Low-E Window Films on Energy Consumption and CO2 Emissions of an Existing UK Hotel Building. Sustainability. 2019; 11 (16):4265.

Chicago/Turabian Style

Shiva Amirkhani; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. 2019. "Impact of Low-E Window Films on Energy Consumption and CO2 Emissions of an Existing UK Hotel Building." Sustainability 11, no. 16: 4265.

Original article
Published: 02 June 2019 in Energy Efficiency
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The existing non-residential building stock can generally be considered energy-inefficient. The ECUK 2017 report states that the final energy consumption for commercial buildings remained static. The 2010 recast Energy Performance Building Directive (EPBD) has set out a requirement for commercial and residential buildings to be nearly Zero Energy Buildings (nZEBs) by 2020. Despite this, within the UK, a definition does not exist at the national level for commercial nZEBs (new or existing). This paper utilises the EU zebra2020 data tool to set a standard based on the existing UK nZEB commercial building stock. The aim of this paper is to investigate and assess the potential of various energy-efficient measures (EEMs) and their contribution to reducing energy consumption, primary energy consumption (PEC), and CO2 emissions whilst taking into consideration the energy and cost savings of those measures. The analysis is carried out using Thermal Analysis Simulation software (Tas, Edsl). The model validation obtained a performance gap of less than 5%. The results show that it is possible to achieve the nZEB standard for older UK hotel buildings if several measures are implemented and the initial selection of EEMs is carefully investigated. Based on the results, reaching the nZEB target should first take into consideration improving the building fabric and/or building envelope elements to lower the energy demand. Once the energy demand of the building is lowered, the incorporation of a renewable/microgeneration system is essential to meeting the nZEB target.

ACS Style

Radwa Salem; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. Investigating the potential impact of energy-efficient measures for retrofitting existing UK hotels to reach the nearly zero energy building (nZEB) standard. Energy Efficiency 2019, 12, 1577 -1594.

AMA Style

Radwa Salem, Ali Bahadori-Jahromi, Anastasia Mylona, Paulina Godfrey, Darren Cook. Investigating the potential impact of energy-efficient measures for retrofitting existing UK hotels to reach the nearly zero energy building (nZEB) standard. Energy Efficiency. 2019; 12 (6):1577-1594.

Chicago/Turabian Style

Radwa Salem; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. 2019. "Investigating the potential impact of energy-efficient measures for retrofitting existing UK hotels to reach the nearly zero energy building (nZEB) standard." Energy Efficiency 12, no. 6: 1577-1594.

Research article
Published: 24 April 2019 in Building Services Engineering Research and Technology
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The death toll of the 2003 heat wave in Europe exceeded 35,000 heat-related deaths. The elderly population were the most affected. The current paradigm within the construction industry in cold-dominant countries is to design/retrofit buildings with high levels of insulation. Whilst thermal comfort may be reached during colder months with this approach, the risk of overheating can be increased during hotter months. This paper aims to examine the impacts of a changing climate on the risk of overheating and energy performance for a UK retirement village. For this study, the buildings within the retirement village will be designed to reach the nearly zero energy building standard. Consequently, the risk of overheating of the buildings within the retirement village as they currently stand and as zero energy buildings will be investigated under current and future climatic conditions. The analysis is carried out using thermal analysis simulation software (TAS, Edsl). Combined heat and power and combined cooling, heat and power will be investigated as mitigating strategies with regard to overheating. The results of this study do not undermine the importance of continuing to improve the energy efficiency of existing buildings but rather highlight that the approach undertaken should be reconsidered. Practical application: Currently, there is emphasis placed on retrofitting and designing buildings, with high energy efficiency standards. Whilst this is in line with our vision as a society towards reaching a decarbonised, sustainable future, this work highlights that doing so, carries risks with regard to overheating. Nonetheless, the results demonstrate that with the incorporation of suitable mitigation strategies and adequate ventilation strategies, it is possible to achieve an energy efficient building that meets the heating and cooling demand (and thereby thermal comfort of occupants) during the heating and non-heating season.

ACS Style

Radwa Salem; Ali Bahadori-Jahromi; Anastasia Mylona. Investigating the impacts of a changing climate on the risk of overheating and energy performance for a UK retirement village adapted to the nZEB standards. Building Services Engineering Research and Technology 2019, 40, 470 -491.

AMA Style

Radwa Salem, Ali Bahadori-Jahromi, Anastasia Mylona. Investigating the impacts of a changing climate on the risk of overheating and energy performance for a UK retirement village adapted to the nZEB standards. Building Services Engineering Research and Technology. 2019; 40 (4):470-491.

Chicago/Turabian Style

Radwa Salem; Ali Bahadori-Jahromi; Anastasia Mylona. 2019. "Investigating the impacts of a changing climate on the risk of overheating and energy performance for a UK retirement village adapted to the nZEB standards." Building Services Engineering Research and Technology 40, no. 4: 470-491.

Journal article
Published: 01 April 2019 in Proceedings of the Institution of Civil Engineers - Engineering Sustainability
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The advantages of double-skin facade (DSF) systems, ranging between their aesthetic architectural benefits, acoustic benefits and ability to decrease the heating demand of the internal environment, have increased their popularity in Europe since the mid-1980s. However, appropriate consideration must be accorded to their design to ensure that their possible advantages are not negated. This work evaluates how the effect of extraction fans installed in the cavity of the DSF adjoining a central atrium impacts the thermal condition of the atrium and, consequently, the overall energy consumption of an existing UK hotel building. The results of the investigation demonstrated that the DSF extraction fans improve the internal temperature and condition of the adjacent central atrium, particularly in the summer. The fans result in a marginal increase in the overall energy consumption when operated throughout the year; hence, the optimum schedule for the operation of the extraction fans is during the cooling-dominant period.

ACS Style

Abdulazeez Rotimi; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. Impact of cavity extraction fans on thermal and energy performance of existing UK hotel. Proceedings of the Institution of Civil Engineers - Engineering Sustainability 2019, 172, 76 -86.

AMA Style

Abdulazeez Rotimi, Ali Bahadori-Jahromi, Anastasia Mylona, Paulina Godfrey, Darren Cook. Impact of cavity extraction fans on thermal and energy performance of existing UK hotel. Proceedings of the Institution of Civil Engineers - Engineering Sustainability. 2019; 172 (2):76-86.

Chicago/Turabian Style

Abdulazeez Rotimi; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. 2019. "Impact of cavity extraction fans on thermal and energy performance of existing UK hotel." Proceedings of the Institution of Civil Engineers - Engineering Sustainability 172, no. 2: 76-86.

Journal article
Published: 15 June 2018 in Sustainability
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Several studies have highlighted Combine Heat and Power (CHP) systems to be one of the proven and reliable technologies that can improve the efficiency of heat and electricity generation. The extensive adoption of this type of technology is crucial in reducing building emissions globally and in the U.K. This work uses a dynamic simulation software to evaluate the effect of CHP on the energy performance of an existing U.K. hotel and subsequently an approach to aid in the selection of optimum CHP size. The outcome of the study indicated that CHP systems in hotel buildings can provide considerable economic and environmental benefits with either maximally-sized CHP founded on the building’s base heat demand or with reduced CHP size of more than 50% smaller than the estimated maximum size. The optimum size design can be obtained through evaluation of the relationship between the main performance parameters and their variation with CHP sizes.

ACS Style

Abdulazeez Rotimi; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. Optimum Size Selection of CHP Retrofitting in Existing UK Hotel Building. Sustainability 2018, 10, 2044 .

AMA Style

Abdulazeez Rotimi, Ali Bahadori-Jahromi, Anastasia Mylona, Paulina Godfrey, Darren Cook. Optimum Size Selection of CHP Retrofitting in Existing UK Hotel Building. Sustainability. 2018; 10 (6):2044.

Chicago/Turabian Style

Abdulazeez Rotimi; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. 2018. "Optimum Size Selection of CHP Retrofitting in Existing UK Hotel Building." Sustainability 10, no. 6: 2044.

Journal article
Published: 10 May 2018 in Energies
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In recent years there has been an increasing interest in the incorporation of distributed energy resource (DER) systems such as combined heat and power (CHP) and combined cooling, heating, and power (CCHP) in commercial building applications as they have shown considerable environmental and financial benefits when compared to conventional energy generation. This paper aims to investigate the potential energy, carbon emissions, and financial impact of the size of co/tri-generation systems on a real case scenario of an existing UK hotel. The analysis is carried out using Thermal Analysis Simulation software (TAS) and a payback methodology is adopted to carry out the financial analysis. The results show that the average percentage decrease in carbon emissions with CHP is 32% and with CCHP it is 36%. Whilst both CHP and CCHP systems increase energy consumption in the building, the costs are reduced, and a CHP system contributes to a higher percentage of cost savings and shorter payback periods. The incorporation of a CCHP system leads to lower energy consumption for a similar-sized CHP system. Further simulations under future climate projections revealed that a CCHP system outperforms a CHP system.

ACS Style

Radwa Salem; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. Comparison and Evaluation of the Potential Energy, Carbon Emissions, and Financial Impacts from the Incorporation of CHP and CCHP Systems in Existing UK Hotel Buildings. Energies 2018, 11, 1219 .

AMA Style

Radwa Salem, Ali Bahadori-Jahromi, Anastasia Mylona, Paulina Godfrey, Darren Cook. Comparison and Evaluation of the Potential Energy, Carbon Emissions, and Financial Impacts from the Incorporation of CHP and CCHP Systems in Existing UK Hotel Buildings. Energies. 2018; 11 (5):1219.

Chicago/Turabian Style

Radwa Salem; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. 2018. "Comparison and Evaluation of the Potential Energy, Carbon Emissions, and Financial Impacts from the Incorporation of CHP and CCHP Systems in Existing UK Hotel Buildings." Energies 11, no. 5: 1219.

Journal article
Published: 26 January 2018 in Infrastructure Asset Management
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Since London underground opened as the world’s pioneer underground railway, the network has grown exponentially to over 402km, servicing more than 1.34 billion customers annually. The rail network is over 150 years and is deteriorating, therefore, it is imperative that innovative maintenance techniques are implemented to inspect the condition of the tunnels and to scope for repair works. Innovation can be difficult to implement due to the size of the London Underground. This study evaluates the practical application and performance of the innovative conditional laser tunnel inspection compared to the currently used traditional method. The results show the accuracy of the lasers, along with the software’s ability to create the scoring for a Principal Inspection report in accordance with the London Underground Standards. Though the initial cost is higher, this would be regained from the saving in maintenance works carried out during the four years between the Principal Inspections.

ACS Style

Ali Bahadori-Jahromi; Abdulazeez Rotimi; Andrew Roxan. Sustainable Conditional Tunnel Inspection: London Underground. Infrastructure Asset Management 2018, 1 -42.

AMA Style

Ali Bahadori-Jahromi, Abdulazeez Rotimi, Andrew Roxan. Sustainable Conditional Tunnel Inspection: London Underground. Infrastructure Asset Management. 2018; ():1-42.

Chicago/Turabian Style

Ali Bahadori-Jahromi; Abdulazeez Rotimi; Andrew Roxan. 2018. "Sustainable Conditional Tunnel Inspection: London Underground." Infrastructure Asset Management , no. : 1-42.

Journal article
Published: 07 August 2017 in Sustainability
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Adverse effects of anthropogenic climate change has resulted in mitigation strategies geared towards curbing CO2 emissions. Consequently, this has increased demand for more energy efficient buildings. Considerable amounts of studies have shown the existence of a significant discrepancy between estimated energy consumption by thermal simulation software and actual building operational energy; this is referred to as a ‘performance gap’. This work presents a method of improving the energy consumption estimate in an existing non-domestic building via the use of a case study UK hotel (Hilton Reading Hotel) and Engineering Development Solutions limited (EDSL) TAS thermal simulation software. The method involves evaluating consumption estimates through plant modelling, and modifying this result by surveying the site to verify the simulation data and including estimates of unaccounted building energy use such as catering services which can be significant in hotels. The energy consumption result for this case study building gives an estimate which is within 12% of the actual building consumption data. The result also demonstrated that such models can produce energy consumption estimates that are up to 23% more accurate than building regulation compliance models and that more accurate simulation consumption estimates can be achieved by accounting for more unregulated energy uses, for example, lifts, servers and small power load.

ACS Style

Abdulazeez Rotimi; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. Estimation and Validation of Energy Consumption in UK Existing Hotel Building Using Dynamic Simulation Software. Sustainability 2017, 9, 1391 .

AMA Style

Abdulazeez Rotimi, Ali Bahadori-Jahromi, Anastasia Mylona, Paulina Godfrey, Darren Cook. Estimation and Validation of Energy Consumption in UK Existing Hotel Building Using Dynamic Simulation Software. Sustainability. 2017; 9 (8):1391.

Chicago/Turabian Style

Abdulazeez Rotimi; Ali Bahadori-Jahromi; Anastasia Mylona; Paulina Godfrey; Darren Cook. 2017. "Estimation and Validation of Energy Consumption in UK Existing Hotel Building Using Dynamic Simulation Software." Sustainability 9, no. 8: 1391.

Journal article
Published: 02 May 2017 in Sustainability
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Recently, considerable attention has justifiably been directed towards energy savings in buildings as they account for up to 20–40% of total energy consumption in developed countries. In the United Kingdom, studies have revealed that buildings’ CO2 emissions for account for at least 43% of total emissions. Window panels are a major component of the building fabric with considerable influence on the façade energy performance and are accountable for up to 60% of a building’s overall energy loss. Therefore, the thermal performance of glazing materials is an important issue within the built environment. This work evaluates the impact of solar window films on the overall energy consumption of an existing commercial building via the use of a case study U.K. hotel and TAS dynamic simulation software. The study results demonstrated that the impact of window films on the overall energy consumption of the case study hotel is approximately 2%. However, an evaluation of various overall energy consumption components showed that the window films reduce the annual total cooling energy consumption by up to 35% along with a marginal 2% increase in the annual total heating energy consumption. They can also provide overall cost and CO2 emissions savings of up to 3%.

ACS Style

Ali Bahadori-Jahromi; Abdulazeez Rotimi; Anastasia Mylona; Paulina Godfrey; Darren Cook. Impact of Window Films on the Overall Energy Consumption of Existing UK Hotel Buildings. Sustainability 2017, 9, 731 .

AMA Style

Ali Bahadori-Jahromi, Abdulazeez Rotimi, Anastasia Mylona, Paulina Godfrey, Darren Cook. Impact of Window Films on the Overall Energy Consumption of Existing UK Hotel Buildings. Sustainability. 2017; 9 (5):731.

Chicago/Turabian Style

Ali Bahadori-Jahromi; Abdulazeez Rotimi; Anastasia Mylona; Paulina Godfrey; Darren Cook. 2017. "Impact of Window Films on the Overall Energy Consumption of Existing UK Hotel Buildings." Sustainability 9, no. 5: 731.

Journal article
Published: 25 April 2017 in Advances in concrete construction
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ACS Style

Ali B-Jahromi; Abdulazeez Rotimi; Shivan Tovi; Charles Goodchild; Joseph Rizzuto. Evaluation of the influence of creep and shrinkage determinants on column shortening in mid-rise buildings. Advances in concrete construction 2017, 5, 155 -171.

AMA Style

Ali B-Jahromi, Abdulazeez Rotimi, Shivan Tovi, Charles Goodchild, Joseph Rizzuto. Evaluation of the influence of creep and shrinkage determinants on column shortening in mid-rise buildings. Advances in concrete construction. 2017; 5 (2):155-171.

Chicago/Turabian Style

Ali B-Jahromi; Abdulazeez Rotimi; Shivan Tovi; Charles Goodchild; Joseph Rizzuto. 2017. "Evaluation of the influence of creep and shrinkage determinants on column shortening in mid-rise buildings." Advances in concrete construction 5, no. 2: 155-171.

Journal article
Published: 25 March 2017 in Advances in Energy Research
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ACS Style

Athanasios Lykartsis; Ali B-Jahromi; Anastasia Mylona. Evaluation of thermal comfort and cooling loads for a multistory building. Advances in Energy Research 2017, 5, 65 -77.

AMA Style

Athanasios Lykartsis, Ali B-Jahromi, Anastasia Mylona. Evaluation of thermal comfort and cooling loads for a multistory building. Advances in Energy Research. 2017; 5 (1):65-77.

Chicago/Turabian Style

Athanasios Lykartsis; Ali B-Jahromi; Anastasia Mylona. 2017. "Evaluation of thermal comfort and cooling loads for a multistory building." Advances in Energy Research 5, no. 1: 65-77.

Journal article
Published: 25 February 2017 in Advances in concrete construction
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ACS Style

Shivan Tovi; Charles Goodchild; Ali B-Jahromi. Deformation of multi-storey flat slabs, a site investigation. Advances in concrete construction 2017, 5, 49 -63.

AMA Style

Shivan Tovi, Charles Goodchild, Ali B-Jahromi. Deformation of multi-storey flat slabs, a site investigation. Advances in concrete construction. 2017; 5 (1):49-63.

Chicago/Turabian Style

Shivan Tovi; Charles Goodchild; Ali B-Jahromi. 2017. "Deformation of multi-storey flat slabs, a site investigation." Advances in concrete construction 5, no. 1: 49-63.