Browsing Civil Engineering (Conference Papers) by Author "Hajdukiewicz, Magdalena"
Now showing items 1-19 of 19
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Achieving nearly zero-energy buildings - A lifecycle assessment approach to retrofitting buildings
Moran, Paul; Goggins, Jamie; Hajdukiewicz, Magdalena (NUI Galway, 2015-04-23)It is now widely recognised in the academic and business worlds that energy efficiency in buildings provides significant environmental and economic opportunities, but also challenges. The building sector offers considerable ... -
Assessing aerodynamic performance in cycling using computational fluid dynamics
Mannion, Paul; Clifford, Eoghan; Blocken, Bert; Hajdukiewicz, Magdalena (NUI Galway, 2016-08-29)Aerodynamic resistance is one of the leading challenges to overcome in elite cycling. To optimize cycling aerodynamics, estimates must first be made by means of wind tunnel testing, computational fluid dynamics or track ... -
Behaviour of hybrid concrete lattice girder flat slab system using insitu structural health monitoring
Newell, S.; Goggins, Jamie; Hajdukiewicz, Magdalena; Holleran, D. (NUI Galway, 2016-08-29)In recent decades, Structural Health Monitoring (SHM) has emerged as an increasingly important tool in Civil Engineering to understand how structures behave during construction and operation. Although SHM is not a new ... -
Community engaged learning: A building engineering case study
Goggins, Jamie; Hajdukiewicz, Magdalena (Civil Engineering Research Association of Ireland (CERAI), 2020-08-28)ABSTRACT: Community engaged learning is a form of experiential education with a civic underpinning. Community engaged learning is embedded with the civil engineering curriculum at NUI Galway and is framed by a research ... -
Diagnostics and intervention methods for façade retrofit of post-WWII non-domestic buildings in Europe for energy efficiency
Zuhaib, Sheikh; Hajdukiewicz, Magdalena; Keane, Marcus M.; Goggins, Jamie (NUI Galway, 2016-08-29)The growing demand of deep façade retrofits in refurbishment projects across Europe, is often accompanied by low-energy targets and architectural attributes. Factors like variability in context, material, environment and ... -
The environmental performance of a reinforced precast concrete slab with void forming system
Hajdukiewicz, Magdalena; Lebrene, J; Goggins, Jamie (2014)In some climates people spend approximately 90% of their lives indoors. Thus, it is very important to maintain healthy and comfortable conditions in buildings. The building sector is responsible for about 40% of the ... -
Evaluation of various turbulence models to predict indoor conditions in a naturally ventilated room
Hajdukiewicz, Magdalena; Geron, M.; Keane, MM (2013)In recent years, Computational Fluid Dynamics (CFD) has become a popular tool in building simulation. However, developing reliable CFD models requires a high level of expertise in fluid dynamics and numerical techniques. ... -
Formal Calibration methodology for a CFD model of a naturally ventilated room
Hajdukiewicz, Magdalena; Walsh, Michael; Keane, Marcus M. (2011)This paper describes a systematic methodology for the development of calibrated thermodynamic Computational Fluid Dynamics (CFD) models for controlled environments in buildings utilising wireless sensor networks. ... -
Formal calibration methodology for CFD model development to support the operation of energy efficient buildings
Hajdukiewicz, Magdalena; Keane, MM; O Flynn, B; O Grady, W (Texas A&M University, 2010)Computational Fluid Dynamics (CFD) is a robust tool for modelling interactions within and between fluids and solids. CFD can help understand and predict phenomena that are difficult to test experimentally leading ... -
Generating robust algorithms for energy efficient lighting as a performance aspect of the building operational energy optimisation framework
Ganguly, Turya; Hajdukiewicz, Magdalena; Keane, Marcus; Goggins, Jamie (NUI Galway, 2016-08-29)This paper presents a part of the ongoing research in the nZEB-Retrofit project in the National University of Ireland, Galway. This research aims to optimise residential building performance by enhancing the key performance ... -
How accurate are Energy Performance Certificates indicated energy savings of building retrofits?
Moran, P.; Hajdukiewicz, Magdalena; Goggins, Jamie (NUI Galway, 2016-08-29)With the impending nearly zero energy building (NZEB) regulations for residential new builds and retrofits for the European Union (EU) housing stock and the percentage of new buildings relative to existing buildings is ... -
The influence of heat transfer and storage in structural precast building components on indoor environments
Hajdukiewicz, Magdalena; Goggins, Jamie (2014)Knowledge about the heat transfer and storage in concrete components of the building envelope is vital in evaluating the environmental and energy performance of buildings. Providing sufficient thermal mass of the building ... -
Methodology for quality checks for energy efficient buildings
Hajdukiewicz, Magdalena; Goggins, Jamie; Keane, Marcus M. (NUI Galway, 2017-03-01)The built environment accounts for more than 40% of the overall energy consumption and 36% of the overall CO2 emissions in Europe. Moreover, statistics show that construction and the upkeep of European buildings and ... -
A novel ROM methodology to support the estimation of the energy savings under the Measurement and Verification protocol
Piccinini, Alessandro; Hajdukiewicz, Magdalena; D'Angelo, Letizia; Blanes, Luis M.; Keane, Marcus M. (National University of Ireland Galway, 2020-09-21)This paper presents a novel Reduced Order grey box Model (ROM) methodology, based on a ResistorCapacitor (RC) network, which supports the creation of the baseline energy consumption and the estimation of energy savings ... -
Real-time control of occupants thermal comfort in buildings
Hajdukiewicz, Magdalena; O'Connor, Padraig; O'Neill, Colin; Coakley, Daniel; Keane, Marcus M.; Clifford, Eoghan (International Building Performance Simulation Association, 2015-12-07)Providing satisfactory indoor environmental conditions, air quality and thermal comfort through adequate ventilation is crucial in maintaining safe, healthy and comfortable buildings. Since, heating, ventilation and air ... -
Real-time monitoring of a hybrid precast and in situ concrete flat slab system
Goggins, Jamie; Newell, S; King, D; Hajdukiewicz, Magdalena (2014)This paper presents a scheme developed for instrumentation and monitoring of the structural performance of a hybrid precast and in situ concrete flat slab system employed in an educational building. The system contains a ... -
Retrofit solutions for Irish building stock: The impact of human behaviour
Moran, Paul; Goggins, Jamie; Hajdukiewicz, Magdalena; Rau, Henrike (NUI Galway, 2016)Retrofitting buildings is recognised as the most immediate, pressing, and cost effective mechanism to reduce energy consumption and carbon emissions in the building and construction sector. It is necessary to double or ... -
Understanding the complexities of building physics and human behaviour in achieving a nearly zero energy building
Moran, Paul; Hajdukiewicz, Magdalena; Goggins, Jamie (NUI Galway, 2016-07-27)About 40% of the world’s energy consumption and approximately a third of greenhouse gas emissions are associated with buildings. As the percentage of new buildings relative to existing buildings is increasing at a rate ... -
Validated CFD study of indoor environmental conditions in a highly-glazed, cross-ventilated meeting room
Hajdukiewicz, Magdalena; Geron, M; Keane, MM (2013)This paper investigates the environmental conditions inside a highly-glazed cross-ventilated meeting room. A 3D computational fluid dynamics (CFD) model of an indoor environment is developed with the support of the field ...