Conference proceedings

Displaying 11 - 20 of 23 in 11. ENERGY TECHNOLOGIES (remove filter)

Below you can find the proceedings from the latest CEST conferences. You may filter by author or text and further filter by conference.

CEST Proceedings are published under the ISSN 2944-9820.

Biohydrogen production through dark fermentation of organic waste: evaluation of pretreatment methods

(Corresponding) Romano F., Oliva G., Belgiorno V., Naddeo V., Zarra T.

Topic:

11. ENERGY TECHNOLOGIES

Pretreatment of organic substrates is a critical step in enhancing the efficiency of biological hydrogen (bioH₂) production via dark fermentation. This research presents and discusses the effects of different pretreatment methods on a selected substrate, spent coffee grounds (SCGs), aiming to...Read more

Keywords:

biohydrogen, nutrient availability, pretreatments, residual biomass valorization, substrate biodegradability

DOI:

https://doi.org/10.30955/gnc2025.00193

Conference:

CEST2025

Paper ID:

cest2025_00193

sim4dhs - Algorithm for the thermohydraulic simulation of district heating systems: Identification of optimal locations for additional heat sources

(Corresponding) Pelda J.

Topic:

11. ENERGY TECHNOLOGIES

In 2023, renewables covered 22 % of Germany’s final energy use - 53 % in electricity but only 18 % in heat, even though heat makes up half of total consumption. In particular, district heating promises a high potential of reducing CO2 emissions. In order to unlock this potential, district heating...Read more

Keywords:

district heating, renewable energies, optimization, thermo-hydraulic simulation, pressure drop

DOI:

https://doi.org/10.30955/gnc2025.00197

Conference:

CEST2025

Paper ID:

cest2025_00197

Optimization of advanced bio-based carbon capture and utilization system through technological development and comparison

Mariniello A., Oliva G., Belgiorno V., Naddeo V., (Corresponding) Zarra T.

Topic:

11. ENERGY TECHNOLOGIES

Algae-based biological carbon capture and utilization (Bio-CCU) systems represent a promising approach to reduce atmospheric CO2 concentrations while generating valuable bio-products. The study presents and investigates the optimization of an advanced algal photobioreactor (aPBR), through the...Read more

Keywords:

biological systems, Photobioreactor (PBR), environmental sustainability, climate change, circular economy, CO2

DOI:

https://doi.org/10.30955/gnc2025.00225

Conference:

CEST2025

Paper ID:

cest2025_00225

Biomethanation of Syngas with a Focus on CO Conversion Using Mixed Microbial Cultures in a Thermophilic Trickle bed Reactor

Ali A., Ali R., Yde L., (Corresponding) Ashraf M.

Topic:

11. ENERGY TECHNOLOGIES

Biomethanation of syngas offers a sustainable route for renewable methane production. However, CO-rich gas streams pose challenges due to microbial inhibition. This study evaluated a thermophilic trickle bed reactor (TBR) operating for 180 days with mixed microbial cultures and varying syngas...Read more

Keywords:

Trickle bed reactor, syngas, biomethane, carbon monoxide, conversion, inoculum

DOI:

https://doi.org/10.30955/gnc2025.00297

Conference:

CEST2025

Paper ID:

cest2025_00297

Optimized Biomethanation of Hydrogen and Carbon Dioxide via Inoculum Selection and Pre-processing in a Thermophilic Trickle-Bed Reactor

Ali R., Yde L., (Corresponding) Ashraf M.

Topic:

11. ENERGY TECHNOLOGIES

To improve the energy efficiency of biological methanation of CO₂ and H₂, this study evaluates the performance of a thermophilic (55 °C) anaerobic trickle-bed reactor (700 ml). A novel inoculation strategy is presented, involving the use of unfiltered and uncentrifuged anaerobic sludge from a...Read more

Keywords:

Biomethanation, trickle bed reactor, inoculum, pre-processing

DOI:

https://doi.org/10.30955/gnc2025.00302

Conference:

CEST2025

Paper ID:

cest2025_00302

Turning Plastic Waste into Power: Pyrolysis for Sustainable Industrial Energy

(Corresponding) Koumpakis D., Vlachokostas C., Michailidou A., Savva C.

Topic:

11. ENERGY TECHNOLOGIES

The research describes the creation of a basic pyrolysis system which industrial facilities can use to generate energy from their plastic waste. The system transforms 360 tons of plastic waste yearly into 160 tons of synthetic pyrolysis oil which powers a Combined Heat and Power (CHP) system. The...Read more

Keywords:

Pyrolysis, Energy Autonomy, Plastic Waste, Combined Heat and Power, Circular Economy

DOI:

https://doi.org/10.30955/gnc2025.00374

Conference:

CEST2025

Paper ID:

cest2025_00374

Optimized hydrodynamic cavitation-based Pretreatment Strategies to enhance residual Biogas Yield from Solid Digestate and Struvite Recovery from Liquid Fraction

(Corresponding) Nayak J., Khan A., Ranade V., Collins M.

Topic:

11. ENERGY TECHNOLOGIES

Digestate valorisation is essential for improving the sustainability and efficiency of anaerobic digestion systems. This study explores an integrated approach combining hydrodynamic cavitation (HC) pretreatment of the solid fraction with struvite precipitation from the liquid fraction to enhance...Read more

Keywords:

Digestate valorization, hydrodynamic cavitation, struvite precipitation, residual biogas enhancement

DOI:

https://doi.org/10.30955/gnc2025.00392

Conference:

CEST2025

Paper ID:

cest2025_00392

Simulation-based design of pressure swing adsorption for methane and nitrogen separation in biogas upgrading

De Paola S., Cairone S., Oliva G., Cardona G., Zarra T., Belgiorno V., (Corresponding) Naddeo V.

Topic:

11. ENERGY TECHNOLOGIES

This study evaluates the performance of three adsorbents, ETS-4, MSC 3K 172, and Norit RB3, for a 68/32 %vol CH4/N2 separation in biogas upgrading, using a two-stage Pressure Swing Adsorption (PSA) system modeled in Aspen Adsorption. Sensitivity analysis indicated that adsorption pressure,...Read more

Keywords:

PSA cycle optimization, Biogas upgrading, CH4/N2 separation, Kinetic-selective adsorbents.

DOI:

https://doi.org/10.30955/gnc2025.00400

Conference:

CEST2025

Paper ID:

cest2025_00400

Biogas upgrade to biomethane in trickling bed reactors: Process optimization under mesophilic conditions

Karyofyllidou C., Spyridonidis A., Diamantis V., Galiatsatos I., Stathopoulou P., Tsiamis G., (Corresponding) Stamatelatou K.

Topic:

11. ENERGY TECHNOLOGIES

The biomethane sector is rapidly expanding due to the compelling advantages of renewable biomethane, which closely resembles non-renewable natural gas. In this work, we present a novel study on trickling bed reactors (TBR) under mesophilic conditions, demonstrating their robustness in producing...Read more

Keywords:

biogas, biomethane, trickling bed reactor, biological upgrade, Methanobacter

DOI:

https://doi.org/10.30955/gnc2025.00414

Conference:

CEST2025

Paper ID:

cest2025_00414

Using the EU Environmental Permitting Framework to Promote the Energy Transition in the Western Balkans – The Case of Kosovo

(Corresponding) Panagiotakis I., Astara Z., Shala B., Bajraktari E., Elshani A., Alexopoulos I., Gjinolli P.

Topic:

11. ENERGY TECHNOLOGIES

Kosovo's electricity generation is dominated by lignite-fired power plants, resulting in high greenhouse gas emissions and limited integration of renewable energy sources (RES). Despite national strategies aimed at increasing the share of RES and Battery Energy Storage Systems (BESS),...Read more

Keywords:

Environmental Permitting, Renewable Energy, Kosovo, Spatial Planning, RED III

DOI:

https://doi.org/10.30955/gnc2025.00422

Conference:

CEST2025

Paper ID:

cest2025_00422