Infrastructure Engineering - Research Publications

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    Emergency
    McNiven, B ; Aye, L ; Holzer, D (Australian Institute of Refrigeration, Air Conditioning and Heating (AIRAH), 2022-10-31)
    As part of the i-Hub project, masters-level architectural and engineering students from the University of Melbourne, industry consultants, university academics, and Ambulance Victoria staff embraced the challenge of designing net zero emergency response stations. The university’s Brendon McNiven; Lu Aye, F.AIRAH; and Dominik Holzer discuss.
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    Sustainability and circular economy as part of strategic goals of businesses in Australia: Preliminary findings
    Pilipenets, O ; Hui, K ; Gunawardena, D ; Mendis, P ; Aye, L (Department of Infrastructure Engineering, 2022-09-27)
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    Exploring policy mixes for low-carbon and just energy transitions systems: An Australian case
    Rojas Arevalo, A ; de Haan, F ; Candy, S ; Foliente, G ; Aye, L (DUMU, 2022-11-09)
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    Upcycling opportunities and potential markets for aluminium composite panels with polyethylene core (ACP-PE) cladding materials in Australia: A review
    Pilipenets, O ; Gunawardena, T ; Kin Peng Hui, F ; Nguyen, K ; Mendis, P ; Aye, L (Elsevier BV, 2022-11-28)
    Many buildings worldwide have high fire-risk materials as part of their cladding. As governments in Australia strive to make buildings safer, it is expected that a large volume of end-of-life dangerous cladding will be replaced with safer materials. This high volume of hazardous materials might be upcycled into value-added products. This article presents a systematic market analysis and literature review in identifying current and potential uses for the raw materials used in hazardous ACP-PE cladding. The most promising areas were identified to be non-food-contact packaging (US$228 M p.a.), non-pressure pipes (US$30 M p.a.), footwear (US$5.29 M p.a.) and 3D printer filament (US$2.73 M p.a.)
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    New normal remote communication for collaboration (presentation)
    Vaz-Serra, P ; Hui, KP ; Aye, L ( 2021-12-19)
    Presented at the 12th International Conference on Structural Engineering and construction Management (ICSECM) 2021, Kandy, Sri Lanka (17-19 December)
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    Effects of Working from Home on Greenhouse Gas Emissions and the Associated Energy Costs in Six Australian Cities
    Navaratnam, S ; Jayalath, A ; Aye, L (MDPI, 2022-04-01)
    Working from home (WFH) has been imposed due to the COVID-19 pandemic. The adoption of WFH impacts energy use in the residential, commercial, and transportation sectors. Consequently, this affects the greenhouse gas emission (GHGE) and the associated energy costs to workers and employers. This study estimates the effects of WFH on the GHGE and energy-related costs in the residential, commercial, and transportation sectors. A simple linear model was used to estimate the changes in the GHGEs and cost by a typical employee when WFH practice is adopted for 1.5 and 4 days per week. The adoption of WFH reduces the operational GHGE accounted for commercial buildings and transport. However, it increases the operational GHGE accounted for residential buildings, which is a maximum of about 6% and 12%, respectively, for WFH 1.5 and 4 days. The reduction of GHGE from transport is significantly higher than that of residential buildings. The GHGE reductions from the transport sector are about 30% and 80%, respectively, for WFH 1.5 days and 4 days per week. WFH for 1.5 and 4 days per week reduces the national annual GHGE by about 1.21 Mt CO2-e and 5.76 Mt CO2-e, respectively. Further, the annual transportation cost of an employee is reduced by 30% and 80% in each city when the employee WFH for 1.5 and 4 days per week. The outcomes of this study offer a direction to reduce energy consumption and related costs and potential future research avenues on this topic. Further, the findings also help policymakers develop a hybrid work model for the post-COVID-19 pandemic.
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    A multi-layered energy resilience framework and metrics for energy master planning of communities: A university campus case study
    Charani Shandiz, S ; Rismanchi, B ; Foliente, G ; Aye, L (Society of Risk Analysis, 2021-12-05)
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    Lessons Learned from PCM Embedded Radiant Chilled Ceiling Experiments in Melbourne
    Mousavi, S ; Rismanchi, B ; Brey, S ; Aye, L (Instituto Superior de Engenharia do Porto, 2021-09-14)
    Buildings are responsible for over a third of energy consumption worldwide, particularly for the increasing demand of air-conditioners in response to the more extreme heat around the globe. It is imperative to move towards more energy-efficient space cooling alternatives. The integration of phase change material (PCM) with a radiant chilled ceiling (RCC) is a promising technology due to its benefits regarding energy efficiency and indoor environmental quality. This article presents a field study conducted on a newly-developed PCM embedded radiant chilled ceiling (PCM-RCC) installed in a stand-alone cabin located in Melbourne. The study evaluates the thermal and energy performance of the system through investigation of the transient thermal behaviour of PCM panels in charging-discharging cycles, the indoor comfort conditions, and the electricity peak demand. It was observed that the proposed PCM-RCC can provide satisfactory comfort conditions and contribute to load shifting if a refined operating strategy is applied. The efficiency of PCM recharge overnight depends on several factors that need to be carefully considered in design. The challenges related to the implementation of optimal operating dynamic schedules in response to the thermal behaviour of PCM-RCC, and accurate weather forecasting should be addressed to realise the full potential of this technology.
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    Heat Pump: An enabling technology in the future low carbon energy systems?
    Aye, L ( 2022-04-06)
    Invited Talk: Presented at the International Symposium on Energy Management and Sustainability (ISEMAS) 2022, 5-9 April 2022