Conference proceedings

Displaying 1261 - 1270 of 1396 in (remove filter)

CEST Proceedings are published under the ISSN 2944-9820.

Simulation of an urban flash flood: the 2017 flood event in Mandra, Attica

Handrinos S., (Corresponding) Bellos V., Sibetheros I.
Topic: 
Floods, droughts and water scarcity
This study deals with the 2D flood simulation of an urban flash flood event that took place on November 15, 2017 in Mandra, Attica. The well-known hydrodynamic software HEC-RAS was used for the flood simulation. The model input was an ensemble of 100 hydrographs, derived from the simulation of the...Read more
Keywords: 
urban flood, flash flood, 2D hydrodynamic model, HEC-RAS.
Paper ID: 
cest2021_00524

Clean water – Healthy city. Using of WBE for monitoring of the consumption of illicit drugs in the city Prague

(Corresponding) Očenášková V., Tušil P., Marešová D., Pospíchalová D., Cielecká N.
Topic: 
City metabolism or areas metabolism
The results of the three years long project named Municipal wastewater as a diagnostic medium of the capital city of Prague are presented. The post informs about regular, almost two-year long monitoring of municipal wastewater at selected sampling points of the Prague sewerage network. In addition...Read more
Keywords: 
wastewater-based epidemiology, illicit drugs, nicotine, alcohol, monitoring
Paper ID: 
cest2021_00473

Assessing the Environmental Impact of Maritime Transport for the Port of Mytilene with a Focus on the Emission Accounting of the Port of Arrival

(Corresponding) Kelmalis A., Lekkas D., Vakalis S.
Topic: 
Environmental impact of maritime transport
Global accounting of the environmental impact from maritime transport is an ongoing conversation. This study introduces the idea that emissions from open-sea cruising can accounted as stock at the port of arrival. An example is presented for the case of Mytilene (for a single month) where the in-...Read more
Keywords: 
Emissions, Accounting, Maritime Policy, Marine fuels, Methodology
Paper ID: 
cest2021_00472

The role of biomass and biowaste in the green energy transition of islands and an introduction to the μgas-to-grid concept

(Corresponding) Vakalis S., Fountoulakis M.
Topic: 
Energy technologies and sustainability
The green transition of the energy sector in islands has always been a challenging task. The connectivity of islands with the (mainland) central grid can be problematic, especially when the distance is significant. In such cases, isolated electrical grids need to be developed on the islands, and...Read more
Keywords: 
Syngas, Biogas, Natural gas grid, Biowaste, Isolated Grid, Sustainable Energy
Paper ID: 
cest2021_00530

Comparison the effectiveness of three outranking multicriteria methods as analytical tools for the efficiency assessment of biorefineries/ waste-to-energy technologies

Isigonis P., (Corresponding) Vakalis S.
Topic: 
Circular economy and industrial symbiosis
Circular Economy is at the heart of the EU Green Deal, Europe’s new agenda for sustainable growth. Waste Management has been firmly focusing on material and energy recovery, through the development of policy schemes and the utilization of resource recovery facilities. Waste-to-energy technologies...Read more
Keywords: 
Waste-to-energy, Biorefineries, Multicriteria analysis, Thermodynamics, 3T Method
Paper ID: 
cest2021_00540

Modelling the hydrothermal carbonization of cheese whey wastewater in Lesvos island: an application of the 3-step evolution model

Chatzimaliakas P., (Corresponding) Vakalis S.
Topic: 
Biowaste
Lesvos island has an extensive dairy production sector, and -at present- eighteen dairy processing facilities are operating. Efficient management of the liquid biowaste effluents has been an issue of interest since the scope is the minimization of the environmental impact. The operating dairy...Read more
Keywords: 
Hydrothermal carbonization, Modelling, Biowaste, Cheese whey wastewater, 3-step evolution model
Paper ID: 
cest2021_00551

Development of a tool for calculating ship air emissions

(Corresponding) Ventikos N., Kalogeropoulos I., Louzis K., (Corresponding) Stamatopoulou E.
Topic: 
Environmental impact of maritime transport
This paper describes the development of a ship air emissions calculator, which will be part of the ECOMARPOL platform of the Intelligent Research Infrastructure for Shipping, Supply Chain, Transport and Logistics (EN.I.R.I.S.S.T.). The tool developed with the Python programming language and is...Read more
Keywords: 
Ship air emissions; Bottom-up method; Emissions calculator; Sensitivity analysis; Environmental impact of shipping
Paper ID: 
cest2021_00474

Nonlinear Autoregressive Neural Networks for Air Temperature forecasting

Philippopoulos K., (Corresponding) Tzanis C., Deligiorgi D., Alimissis A.
Topic: 
Environmental data analysis and modelling
In the field of climatic conditions forecasting, the linear classical time series models are inadequate for modelling and predicting accurately the air temperature variability. This work presents the novel application of nonlinear autoregressive neural networks (NAR) in air temperature forecasting...Read more
Keywords: 
Air temperature, Machine Learning, Artificial Neural Networks, Dynamic Neural Networks, Forecasting
Paper ID: 
cest2021_00485

Climatology of the impact of atmospheric circulation on surface meteorological conditions over Greece

(Corresponding) Philippopoulos K., Tzanis C., Deligiorgi D., Alimissis A.
Topic: 
Environmental data analysis and modelling
Large-scale atmospheric circulation is a critical factor that controls the surface climatic conditions of a specific region. The scope of this work is to examine this relationship for different climatic regions over Greece and provide a detailed descriptive statistical analysis for multiple...Read more
Keywords: 
Atmospheric circulation, climate, temperature, precipitation
Paper ID: 
cest2021_00486

Effect of water extractable organic matter from Pamvotis lake sediment on three psychoactive drugs under simulated solar light

JİMÉNEZ-HOLGADO C., (Corresponding) SAKKAS V., RICHARD C.
Topic: 
Emerging pollutants
Psychoactive drugs are classified as contaminants of emerging concern but there is limited information on their fate in surface waters. Here, we studied the fate of three drugs (sertraline, clozapine and citalopram) upon irradiation in the presence of the Pamvotis lake organic matter (WEOM)...Read more
Keywords: 
antidepressants, photodegradation, organic matter from sediment, hydroxyl radicals, photoproducts
Paper ID: 
cest2021_00477