| 1. |
- Achuthan, Krishnashree, et al.
(författare)
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Internationalizing Engineering Education With Phased Study Programs : India-European Experience
- 2014
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Ingår i: 2014 IEEE FRONTIERS IN EDUCATION CONFERENCE (FIE). - : IEEE. - 9781479939220 ; , s. 295-301
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Konferensbidrag (refereegranskat)abstract
- Most of the critical challenges seen in the past decades have impacted citizens in a global way. Given shrinking resources, educationists find preparing students for the global market place a formidable challenge. Hence exposing students to multi-lateral educational initiatives are critical to their growth, understanding and future contributions. This paper focuses on European Union's Erasmus Mundus programs, involving academic cooperation amongst international universities in engineering programs. A phased undergraduate engineering program with multiple specializations is analyzed within this context. Based on their performance at the end of first phase, selected students were provided opportunities using scholarship to pursue completion of their degree requirements at various European universities. This paper will elaborate the impact of differing pedagogical interventions, language and cultural differences amongst these countries on students in diverse engineering disciplines. The data presented is based on on the feedback analysis from Eramus Mundus students (N = 121) that underwent the mobility programs. The findings have given important insights into the structure of the initiative and implications for academia and education policy makers for internationalizing engineering education. These included considering digital interventions such as MOOCs (Massive Open Online Courses) and Virtual Laboratory (VL) initiatives for systemic reorganization of engineering education.
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| 2. |
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| 3. |
- Flores, Xavier, et al.
(författare)
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Calibration and validation of a phenomenological influent pollutant disturbance scenario generator using full-scale data.
- 2014
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Ingår i: Water Research. - : Elsevier BV. - 1879-2448 .- 0043-1354. ; 51, s. 172-185
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Tidskriftsartikel (refereegranskat)abstract
- The objective of this paper is to demonstrate the full-scale feasibility of the phenomenological dynamic influent pollutant disturbance scenario generator (DIPDSG) that was originally used to create the influent data of the International Water Association (IWA) Benchmark Simulation Model No. 2 (BSM2). In this study, the influent characteristics of two large Scandinavian treatment facilities are studied for a period of two years. A step-wise procedure based on adjusting the most sensitive parameters at different time scales is followed to calibrate/validate the DIPDSG model blocks for: 1) flow rate; 2) pollutants (carbon, nitrogen); 3) temperature; and, 4) transport. Simulation results show that the model successfully describes daily/weekly and seasonal variations and the effect of rainfall and snow melting on the influent flow rate, pollutant concentrations and temperature profiles. Furthermore, additional phenomena such as size and accumulation/flush of particulates of/in the upstream catchment and sewer system are incorporated in the simulated time series. Finally, this study is complemented with: 1) the generation of additional future scenarios showing the effects of different rainfall patterns (climate change) or influent biodegradability (process uncertainty) on the generated time series; 2) a demonstration of how to reduce the cost/workload of measuring campaigns by filling the gaps due to missing data in the influent profiles; and, 3) a critical discussion of the presented results balancing model structure/calibration procedure complexity and prediction capabilities.
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| 4. |
- Flores, Xavier, et al.
(författare)
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Generation of (synthetic) influent data for performing wastewater treatment modelling studies
- 2014
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Konferensbidrag (refereegranskat)abstract
- The success of many modelling studies strongly depends on the availability of sufficiently long influent time series - the main disturbance of a typical wastewater treatment plant (WWTP) - representing the inherent natural variability at the plant inlet as accurately as possible. This is an important point since most modelling projects suffer from a lack of realistic data representing the influent wastewater dynamics. The objective of this paper is to show the advantages of creating synthetic data when performing modelling studies for WWTPs. This study reviews the different principles that influent generators can be based on, in order to create realistic influent time series. In addition, the paper summarizes the variables that those models can describe: influent flow rate, temperature and traditional/emerging pollution compounds, weather conditions (dry/wet) as well as their temporal resolution (from minutes to years). The importance of calibration/validation is addressed and the authors critically analyse the pros and cons of manual versus automatic and frequentistic vs Bayesian methods. The presentation will focus on potential engineering applications of influent generators, illustrating the different model concepts with case studies. The authors have significant experience using these types of tools and have worked on interesting case studies that they will share with the audience. Discussion with experts at the WWTmod seminar shall facilitate identifying critical knowledge gaps in current WWTP influent disturbance models. Finally, the outcome of these discussions will be used to define specific tasks that should be tackled in the near future to achieve more general acceptance and use of WWTP influent generators.
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| 5. |
- Saagi, Ramesh, et al.
(författare)
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Benchmarking integrated control strategies using an extended BSM2 platform
- 2014
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Konferensbidrag (refereegranskat)abstract
- The need for integrated management of urban wastewater systems (UWS) is highly acknowledged in both research and industry. Modelling studies and practical experiences with integrated control of UWS clearly suggest the benefits of a holistic control approach. Given the success of benchmark simulation models (BSMs) in the study of control strategy options for wastewater treatment plants (WWTPs), a spatial extension of the BSM2 model to include sewer and catchment descriptions is presented in this paper. The extension includes detailed model descriptions for wastewater generation (flow rate/pollution) in a hypotheticalcatchment and its transport through a sewer network. The extension can be linked directly to the existing BSM2 model. Possibilities for the control of loads and flow rate exist in the form of storage tanks with pumps/valves as actuators. As an example, an integrated control scheme of the extended system is presented. The study demonstrates the potential (beneficial) effects that integrated control might have on the UWS by balancing the sewer overflows and/or WWTP overloading.
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