Day 1 — Thursday, May 21st
Thursday, May 21st
14:00—15:00
ENIRA HALL
Textiles and Clothing in Ecological and Environmental Applications — Part I

CHAIR: Radka Atanasova — Technical University of Sofia

Methodology for evaluating sewing process quality indicators for AI-adaptive optimisation

Radka Atanasova, Miroslava Ivanova, Fatme Yumer

Technical University of Sofia

Quick style change for flexible woven textile design and sustainable manufacturing

Radostina Angelova

Technical University of Sofia

Influence of geometric, structural, and mass characteristics on respirator facial fit performance

Maria Ivanova

Technical University of Sofia

Illuminated knitted textiles for sustainable and energy-efficient applications: Materials, technologies and design approaches

Daniela Sofronova, Violina Raycheva, Radostina Angelova

Technical University of Sofia

Thursday, May 21st
15:30—16:30
ENIRA HALL
T.2.2.1. Textiles and Clothing in Ecological and Environmental Applications — Part II

CHAIR: Radka Atanasova — Technical University of Sofia

Shape memory alloy valve for sustainable footwear ventilation

Aneta Todorova

Technical University of Sofia

Sustainable energy textile triboelectric nanogenerators: A concise review of materials, technologies, and smart clothing applications

Aneta Todorova, Daniela Sofronova

Technical University of Sofia

Carbon-aware DPPs for TCLF: A circular design framework

Radka Atanasova

Technical University of Sofia

T.2.2.2. Renewable Energy Technologies — Part III

CHAIR: Radka Atanasova — Technical University of Sofia

Performance assessment of a photovoltaic self-consumption system for greenhouse infrastructure

Aleksi Lyutskanov, Penka Zlateva

Technical University of Varna

Design of a photovoltaic system for powering a microcontroller image processing system

Svetoslav Petrov, Tsvetelina Georgieva, Plamen Daskalov

University of Ruse

Day 2 — Friday, May 22nd
Friday, May 22nd
10:30—11:30
ENIRA HALL
Nuclear Technologies and Thermal Equipment in Energy and Environmental Applications — Part I

CHAIR: Petya Vryashkova — Bulgarian Academy of Sciences

Comparative study of primary-to-secondary leakage in a SG in case of multiple tube ruptures using RELAP5/Mod3.3

Petya Vryashkova, Pavlin Groudev

Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences

100-year institutional memory: Synergy between plant information models, digital twins, and knowledge management in the nuclear new-build in Bulgaria

Iskren Cvetkov

Technical University of Sofia

Repowering and revamping of CPP with small modular HTGR

Petar Petrov​, Dimityr Popov

Technical University of Sofia

Synthetic data-driven U-net semantic segmentation for automated defect detection

Miroslav Avramov​, Veska Gancheva

Technical University of Sofia

Friday, May 22nd
12:00—13:00
ENIRA HALL
Nuclear Technologies and Thermal Equipment in Energy and Environmental Applications — Part II

CHAIR: Petya Vryashkova — Bulgarian Academy of Sciences

Functional resonance analysis method as an analytical tool for assessing the impact of accident tolerant fuel implementation on fundamental nuclear safety functions in light water reactors

Rositsa Palakarcheva-Ivanova, Kalin Filipov

Technical University of Sofia

Steady-state thermal-flow analysis of a NuScale SMR cogeneration system for district heating

Rafał Laskowski1, Adam Smyk1, Nikołaj Uzunow1, Kalin Filipov2, Denitza Zgureva-Filipova2

1Warsaw University of Technology, 2Technical University of Sofia

Determination of plutonium isotopes in wet storage pool water using radiochemical separation and alpha spectrometry

Lyuben Dobrev, Silviya Boycheva

Technical University of Sofia

Combustion stability and energy efficiency improvement in industrial biomass steam boilers – A review

Tsvetomir Beremski, Angel Terziev

Technical University of Sofia

Friday, May 22nd
14:00—15:00
ENIRA HALL
HVAC and Refrigeration Systems, Indoor Environmental Quality, and Energy Performance of Buildings

CHAIR: Kalin Krumov — University of Chemical Technology and Metallurgy

Performance analysis of the transition from HFCs to low-GWP refrigerants in exhaust air heat pumps

Ivan Dimchev

Technical University of Sofia

Impact of variable heating loads on the performance of a return-line integrated heat pump in district heating systems

Ivan Dimchev1, Kaloyan Hristov1, Saule Kamarova2 and Dana Brazhanova3

1Technical University of Sofia, 2Karaganda Industrial University, 3Karaganda Technical University

Heat and mass transfer in HVAC systems of poultry farms

Petyo Stoev, Daniela Chakyrova, Nadezda Doseva

Technical University of Varna

A review of non-isothermal swirling jets for air distribution in HVAC systems in specialized indoor environments

Stoil Ivanov, Angel Terziev

Technical University of Sofia

Friday, May 22nd
15:30—16:30
ENIRA HALL
Improving research capacity and quality for international recognition and sustainability of TU-Sofia
Project № BG-RRP-2.004-0005

CHAIR: Angel Terziev — Technical University of Sofia

Scientific contributions and core activities of the New Technologies for Green Energy and Energy Efficiency Research Group

Angel Terziev Technical University of Sofia

Weather-related influences on the performance of solar energy systems in dusty environments

Borislav Stankov Technical University of Sofia

Green hydrogen: European frameworks and strategies

Martin Ivanov Technical University of Sofia

Hydrogen as a means for enhancing the combustion of hydrocarbons

Ivan Dimchev, Momchil VassilevTechnical University of Sofia

Application of nonwoven textile materials for sustainable maintenance of solar energy systems

Radka Atanasova Technical University of Sofia