Morshed Alam

Morshed Alam
Swinburne University of Technology · Center for sustainable infrastructure

PhD, B.Sc in Mechanical Engineering

About

51
Publications
27,786
Reads
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1,523
Citations
Citations since 2017
27 Research Items
1312 Citations
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2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300
2017201820192020202120222023050100150200250300
Additional affiliations
February 2019 - present
Swinburne University of Technology
Position
  • Lecturer

Publications

Publications (51)
Article
Full-text available
Phase change materials (PCM) can reduce energy consumption and improve thermal comfort in buildings. However, they have some limitations in integrating into construction materials. The significant difficulty is the selection of suitable porous materials, which should be compatible with construction materials with high PCM absorption capacity and st...
Article
Integration of Form-Stable Phase change materials (FSPCM) in building construction materials has been reported to have significant potential to improve building energy efficiency and reduce emissions from this sector. Previous studies on FSPCM only focused on increasing the PCM absorption rate as the performance criteria of FSPCM without considerin...
Article
Full-text available
Energy use in the building is responsible for one-third of total carbon dioxide (CO2) emissions globally. Nearly half of the energy loss occurs through the building envelope due to heat transfer to/for the surroundings. Therefore, there is a need to design an optimum building envelope to reduce energy use in buildings that depend on several paramet...
Article
Phase Change Materials (PCM) has the potential to reduce building energy consumption and emissions, which is essential to combat the climate change threat. Theoretically, PCMs are reported to achieve massive energy savings in buildings. However, in real-life scenarios, the results vary vastly from the theoretical or experimental results due to many...
Chapter
Climate change is aggravating the summer heatwaves, making them more severe, frequent and prolonged. During the heatwave period, buildings are overheated due to heat gain from surroundings which poses significant risks to the occupants. Therefore, adapting our buildings to extreme heatwaves is of paramount importance. This chapter aims to identify...
Article
The seismic performance of buildings can be assessed through fragility analysis as it yields the probability of the demand exceeding the capacity at a specified level of intensity. Although it's well-identified that earthquake uncertainties dominate the fragility characteristics, the influence of the characteristics of the earthquake on the fragili...
Article
Full-text available
Energy retrofitting the existing building stock is crucial to reduce thermal discomfort, energy consumption, and carbon emissions. However, insulating and enhancing the thermal mass of an existing building wall using traditional methods is a very challenging and expensive task. There is a need to develop a material that can be applied easily in an...
Article
Green building standards were adopted around the world to minimize energy consumption and carbon emission from the building sector. However, designing buildings following the standards does not guarantee a low-energy building. Actual energy consumptions in buildings were reported, on average, 2.5 times higher than predictions during the design stag...
Article
In business and service buildings, shared spaces constitute large areas where the occupants share the energy resources and manage them. Changing people’s behaviors toward conscious and efficient energy use within shared spaces has great potential to conserve energy and reduce greenhouse gas emissions. The occupants in a shared area closely interact...
Article
Building envelope insulation is crucial for an energy-efficient and comfortable indoor environment because the envelope accounts for 50–60% of total heat gain/loss in a building. Previous studies mostly used lifecycle cost as the criteria to select the optimum insulation materials with little or no consideration of embodied energy, emission, and su...
Article
Despite the endorsement of green building regulations and the incorporation of energy-efficient technologies, commercial buildings often fail to achieve the desired energy conservation goals, instead consume as much as 3 times of the predicted energy comsuptions, representing a significant building energy performance gap. This study aims to develop...
Article
Heat transfer through building opaque envelope is responsible for approximately half of the total heat loss and gain to and from the surroundings. Therefore, insulation materials are commonly used in the building envelope to reduce the heat transfer. Recently, lightweight wall materials with lower thermal conductivity are used in construction along...
Article
Full-text available
The aim of this research was to evaluate the effectiveness of phase-change materials (PCMs) incorporated into the supply air duct of a hollow-core slab ventilation system. Both experimental and numerical approaches were adopted in this investigation. In the experimental work, the air was passed through a PCM-incorporated aluminum air duct, and the...
Conference Paper
Full-text available
In this paper, optimum insulation thickness (OIT) for building wall is estimated using life cycle cost analysis. A heating-degree method was used to calculate the heat losses through the building wall. In analysis rock wool was used as insulation material, electricity as energy source and fifteen wall construction materials. An appropriate mathemat...
Article
Full-text available
Knowledge of the barriers and coping strategies for retrofitting government buildings for energy efficiency is essential for the success of these types of complex retrofitting programs. This study utilised thematic findings from two focused groups consist of government employees from two States within Australia to create a comprehensive list of bar...
Article
People spend most of their time indoor during a heatwave period, as such assessment of indoor heat stress is an important issue for public health care. In this study, the impact of building energy efficiency in mitigating the risks of experiencing heat stress by the occupants different energy-rated dwellings was investigated under the 2009 Melbourn...
Chapter
This article aims to identify and gain an understanding of the internal and external factors that affect building occupants’ energy consumption behavior, which includes biological, psychological, socioeconomic, sociodemographic, contextual, government regulations, time, physical environment, and building characteristics. Based on these factors a se...
Article
Full-text available
This study compared the effectiveness of passive and free cooling application methods of Phase change materials (PCMs) when used as energy efficient retrofitting in a residential building. A modern duplex residential building in Melbourne, Australia was considered for the case study. In passive application, PCM was installed in the ceilings of the...
Conference Paper
Full-text available
Building sector is known as one of the biggest sources of energy consumptions and greenhouse gas (GHG) emissions. Increasing energy efficiency of buildings is considered as one of the most effective strategies to mitigate greenhouse gas (GHG) emissions and tackle the climate change related events. However, there is significant evidence that buildin...
Article
Full-text available
Government departments and their agencies occupy a significant portion of building stock, whose annual water and energy costs are substantial. Although it has been demonstrated that retrofitting public buildings can lead to drastic reductions in water and energy consumption with rapid payback periods, in most countries the retrofitting rate is very...
Article
Full-text available
In Australia, the government spending on public buildings’ energy and water consumption is considerable; however the building energy and water retrofit market potential has been diminished by a number of barriers, especially financial. In contrast, in other advanced economies there are several reported financing strategies that have been shown to a...
Article
The integration of Phase Change Materials (PCMs) in buildings as a potential method to improve indoor thermal comfort can be achieved via three different approaches: passive, active and free cooling. A large number of studies have been reported the thermal performance enhancement of these methods, revealing that all three methods have a significant...
Article
Full-text available
Government buildings are responsible for a significant proportion of energy consumption worldwide, for example, in Australia, up to 41.5 PJ energy was consumed by government buildings in 2011–2012. While the newly constructed buildings may be energy efficient, the existing buildings, which account for more than 85% of the total building stock, were...
Article
This study investigated the feasibility of PCM as a retrofitting option to reduce the zone air temperature and improve occupant thermal comfort under free running condition in an existing house in Melbourne, Australia. Both the experimental and numerical approach were applied in this study. In the experimental study, PCM was installed in the ceilin...
Conference Paper
Full-text available
The building sector consumed up to 40% of the total energy used globally. Similar figures were identified for water consumption in buildings. As such there is an urgent need to retrofit the existing buildings are energy/water inefficient as most of them were built prior to any efficiency standards/measure put in place. However, retrofitting existin...
Article
Full-text available
Governments occupy a significant proportion of building stock and their associated annual water and energy costs can be substantive. Research has shown that significant reductions in energy and water consumption as well as carbon emissions can be achieved through retrofitting public buildings. However, in most countries the current retrofitting rat...
Conference Paper
Full-text available
Retrofitting existing buildings for energy efficiency has been identified as an effective measure to reduce global energy consumptions and greenhouse gas emissions. Many governments and organisations have put significant effort towards energy efficiency improvement in existing buildings. In this research, a comprehensive review of the barriers to r...
Article
Climate change has led to an increase in the frequency and intensity of heatwaves as well as the risk of heat stress within buildings. To provide habitable indoor conditions without air-conditioning during heatwave, residential building energy efficiency need to be upgraded. The aim of this research is to investigate the possible correlation of bui...
Article
Full-text available
In this study, a novel thermal energy storage composite was developed by impregnating paraffin into hydrophobic coated expanded perlite (EPO) granules. A paraffin/uncoated expanded perlite (EPW) phase change composite was also prepared to study and compare the stability when integrated into cementitious composites. Paraffin/EPW, containing 35% by w...
Conference Paper
Incorporation of phase change materials (PCM) into building envelope is found to be an innovative and effective way of decreasing the energy consumption and greenhouse gas emission in the building sector. In addition, isothermal energy storage nature of PCM could improve the occupant comfort and reduce the potential heat stress during extreme heat...
Article
The potential of phase change materials (PCM) in reducing the heating/cooling energy consumption of residential houses along with several factors influencing the effectiveness of PCM were investigated using EnergyPlus. Simulations were carried out using five different phase change temperature ranges at eight Australian cities which represent six cl...
Data
Full-text available
A novel one-fourth scale low temperature electrolytic model of the Hall–Heroult cell was constructed to investigate the electrolytic bubble formation, coalescence, and movement under the horizontal anode surface. The principles of geometric and dynamic similarities were applied in developing this model electrolytic cell for the first time. A 0.28 M...
Conference Paper
A l/4th scale low temperature electrolytic model of the Hall-Heroult cell was constructed to investigate the electrolytic bubble formation mechanism, coalescence and movement under the horizontal anode surface. Geometric and dynamic similarity between the model and real cell was maintained through using similarity criteria. A 0.28M CuSO 4 +20%H 2 S...
Conference Paper
Full-text available
In the Hall-Heroult electrolytic process of aluminium smelting, CO 2 bubbles are generated under the horizontal anode which play an important positive role in homogenisation of the alumina distribution and the temperature field in the electrolytic bath. On the other hand, the gas bubbles increase the ohmic voltage drop underneath the anode surface...
Article
Full-text available
A computational fluid dynamics (CFD) model was developed to simulate the liquid flow field and surface deformation caused by an impinging shrouded supersonic jet on a liquid bath from the top as used in oxygen steelmaking. Two different computational domains were used to avoid the difficulties that arise from the simultaneous solution of compressib...
Conference Paper
Steelmaking is a complex process involving simultaneous multi-phase interactions, chemical reactions, heat transfer and turbulent flow patterns at high temperatures. The severe operating conditions make it difficult to make measurements and directly observe the process. Mathematical modelling has been widely used to evaluate the process and improve...
Article
In Electric Arc Furnace (EAF) steelmaking, liquid metal splashes on the furnace wall due to the impingement of high speed oxygen jet on molten metal surface. The splashed metal droplets cause wear of furnace wall and loss of production. Optimization of the operating condition (lance angle, lance height and flow rate) may reduce splashing and increa...
Article
In Electric Arc Furnace (EAF) steelmaking, liquid metal splashes on the wall of the furnace due to the impingement of high-speed oxygen jet. The splashed metal droplets cause wear of furnace wall and loss of production. Optimization of the operating condition (lance angle, lance height and flowrate) should allow less splashing and increase producti...
Article
Full-text available
Supersonic coherent gas jets are now used widely in electric arc furnace steelmaking and many other industrial applications to increase the gas–liquid mixing, reaction rates, and energy efficiency of the process. However, there has been limited research on the basic physics of supersonic coherent jets. In the present study, computational fluid dyna...
Conference Paper
Full-text available
Steelmaking is a complex process involving simultaneous multi-phase interactions, chemical reactions, heat transfer and turbulent flow patterns at high temperatures. The severe operating conditions make it difficult to make measurements and directly observe the process. Mathematical modelling has been widely used to evaluate the process and improve...
Article
Supersonic oxygen jets are used in steelmaking and other different metal refining processes, and therefore, the behavior of supersonic jets inside a high temperature field is important for understanding these processes. In this study, a computational fluid dynamics (CFD) model was developed to investigate the effect of a high ambient temperature fi...
Article
Supersonic coherent gas jets are now widely used in electric arc furnace steelmaking in order to increase the gas-liquid mixing, reaction rates and energy efficiency of the process. However, there has been limited research on the basics physics involved in supersonic coherent jet. In this study, Computational fluid dynamics simulations of the super...
Conference Paper
Full-text available
In this study, a CFD model was developed to investigate the effect of high ambient temperature field on the supersonic oxygen jet behaviour. The results were compared with available experimental data by Sumi et al. (2006) and a jet model proposed by Ito and Muchi (1969). The CFD simulation with íµí±˜-íµí¼€ turbulence model including compressibility...
Chapter
A 1/4th scale low temperature electrolytic model of the Hall-Heroult cell was constructed to investigate the electrolytic bubble formation mechanism, coalescence and movement under the horizontal anode surface. Geometric and dynamic similarity between the model and real cell was maintained through using similarity criteria. A 0.28M CuSO4+20%H2SO4 s...

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Projects

Projects (3)
Project
This project will investigate the energy performance gap between the design intents and the actual outcomes in building energy retrofit projects, to discover faulty design assumptions, hidden construction errors. Investments on energy retrofit of buildings are one of the cheapest ways to reduce the nation’s energy consumption. However, there is risk and uncertainty about the return on investments as the retrofit projects do not always deliver the intended benefits. The expected outcomes include list of influencing factors and relevant improvement frameworks.
Project
This project will engage with key stakeholders, including government departments, consultants and contractors, as well as facility management firms, to derive a novel framework for accelerating the current rate of public building water and energy retrofit projects, thereby saving water, energy and money. This bold goal will be achieved by developing evidence-based guidelines to conduct such programs, formulating a financial framework and instruments for encouraging public building custodians to engage the private sector to retrofit their buildings, and promoting this new dynamic industry through knowledge creation and skill capacity building.