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Full-Text Articles in Engineering

Bio-Binder—Innovative Asphalt Technology, Amir Tabakovic Dec 2020

Bio-Binder—Innovative Asphalt Technology, Amir Tabakovic

Articles

The global road network spans 16.3 million km [1], of which 5 million km is in the EU. These road networks fulfil major economic and social goals by facilitating the movement of goods and people throughout the EU, and are therefore of the utmost importance to the economic and social life of the EU [2]. National governments invest heavily in their road networks, e.g., in 2014, EUR 53.33 billion was invested in the development and maintenance of the EU road network [3]. Each year, the world produces 1.6 trillion tonnes of asphalt [4], of which 218 million tonnes is produced …


Towards A Sociotechnical Reconfiguration Of Engineering And An Education For Ethics : A Critical Realist Investigation Into The Patterns Of Education And Accreditation Of Ethics In Engineering Programmes In Ireland, Diana Adela Martin Jul 2020

Towards A Sociotechnical Reconfiguration Of Engineering And An Education For Ethics : A Critical Realist Investigation Into The Patterns Of Education And Accreditation Of Ethics In Engineering Programmes In Ireland, Diana Adela Martin

Doctoral

The focus of this thesis is on the provision and evaluation of ethics in engineeringprogrammes in Ireland, by placing this examinationin the wider cultural context of engineering education.The study benefitted from the support of the national accrediting body Engineers Ireland, and included 23 engineering programmes from 2 institutes of technology and 4 universities in Ireland which underwent accreditation between 2017-2019.By using a Critical Realistframe, the study undertakes a multi-layeredinvestigation of the engineering education system that takes into consideration theindividual level of single agents such as instructors and evaluators, the institutional level comprised of engineering programmes, as well as the policy …


Long-Term Durability Of Solar Photovoltaic Modules, Chibuisi Chinasaokwu Okorieimoh, Brian Norton Jun 2020

Long-Term Durability Of Solar Photovoltaic Modules, Chibuisi Chinasaokwu Okorieimoh, Brian Norton

Conference papers

Solar photovoltaic (PV) panels experience long-term performance degradation resulting in lower like-per-like efficiencies and performance ratios when compared with their initial performance. Manufacturers of solar photovoltaic modules usually guarantee the life span for more than 20 years. It is therefore necessary to track and mitigate degradation of PV modules over this period to satisfy such guarantees and beyond this period to identify maintenance and repair requirements. Degradation of solar PV modules makes them less efficient, less reliable and, ultimately, inoperative. This paper reviews relevant literature to discuss:

  • Causes of efficiency reductions in photovoltaic cells

  • Ways to achieve long-term durability of …


A Novel Self-Healing System: Towards A Sustainable Porous Asphalt, Shi Xu, Xueyan Liu, Amir Tabakovic, Erik Schlangen Mar 2020

A Novel Self-Healing System: Towards A Sustainable Porous Asphalt, Shi Xu, Xueyan Liu, Amir Tabakovic, Erik Schlangen

Articles

Self-healing asphalt, aimed to produce a sustainable asphalt pavement using green technology, has been studied in the past two decades. Technologies including encapsulated rejuvenator and induction heating have been proposed, demonstrated in the laboratory, and gradually evaluated in field application. This paper looks into the synergy effect of the above two technologies, where induction heating serves as the asphalt damage repair mechanism, requiring just 2 min heating time and encapsulated rejuvenator will replenish (rejuvenate) aged asphalt binder and reinstate bitumen’s healing ability. Moreover, the increased temperature from induction heating could in turn accelerate the diffusion process of rejuvenator into aged …