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6th International Conference En-Re Energy & Responsibility : Book of Extended Abstracts

Opis: In the context of escalating climate challenges, the EnRe conference is dedicated to exploring pathways to climate neutrality and the sustainable green transition. The conference is focused on the development and implementation of innovations supporting the transformation of energy systems, industrial systems, and living systems, all with the goal of creating a sustainable future with net-zero emissions. The conference brings together experts, researchers, policymakers, and business leaders to share their experiences, research, and visions. The aim of the conference is to foster collaboration and exchange of ideas, and to collectively develop comprehensive approaches and strategies for achieving climate neutrality. This conference is not just a knowledge exchange, but also a platform for encouraging concrete actions that will ensure a greenerand more sustainable future for our next generations to come.
Ključne besede: alternative energy systems, dynamic tariffing, electrical machines and drives, energy conversions, financing energy projects, nuclear energy, conventional energy systems, climate changes - climate pan, mathematical methods in engineering, micro and nano energy, low-carbon technologies and strategies, renewable energy technologies heating and cooling systems, smart buildings, cities and networks, policies and strategies for renewable energy sources, energy efficiency and the climate
Objavljeno v DKUM: 17.05.2024; Ogledov: 18; Prenosov: 0
.pdf Celotno besedilo (10,40 MB)
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Food Waste to Energy through Innovative Coupling of CHP and Heat Pump
Jan Drofenik, Danijela Urbancl, Darko Goričanec, Zdravko Kravanja, Zorka Novak-Pintarič, 2023, izvirni znanstveni članek

Opis: This paper presents the conceptual design of a technological solution for the efficient conversion of food waste into heat and power. The distribution and composition of food loss and waste at different stages of the food supply chain in Slovenia and their potential for biogas production were determined. It was found that more than 50% of food waste comes from households. Therefore, a small plant was designed to convert food waste into biogas, which was innovatively coupled with a combined heat and power (CHP) unit and a heat pump. This doubles the amount of heat generated compared to conventional cogeneration. Based on the capacity of a micro commercial CHP unit, 3330 households (about 8000 residents) would supply food waste. The heat generated could replace 5% of the natural gas used for domestic water heating. The payback period would be 7.2 years at a heat price of about 80 EUR/MWh, however, for municipalities with more than 40,000 inhabitants the payback period would be reduced to less than 3 years. The cost price of the heat generated by this system would be about 25 EUR/MWh, taking into account the government subsidy for the operation of the CHP unit.
Ključne besede: food waste to energy, biogas, combined heat and power, CHP, heat pump, efficiency, conceptual design, preliminary economic assessment, sensitivity analysis
Objavljeno v DKUM: 16.02.2024; Ogledov: 3068; Prenosov: 14
.pdf Celotno besedilo (19,44 MB)
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Conference proceedings
2019, zbornik recenziranih znanstvenih prispevkov na mednarodni ali tuji konferenci

Opis: Konferenčni zbornik / 7. mednarodni simpozij o aplikativni elektromagnetiki SAEM 18. Mednarodni Simpozij o Aplikativni Elektromagnetiki je namenjen predstavitvi rezultatov raziskovalnega dela na različnih področjih aplikativne elektromagnetike. Simpozij je namenjen izmenjavi idej, predstavitvi dosežkov in rezultatov, zagotavljanju foruma za raziskovalce in akademike. Naše konference so znane po odprtem in prijaznem vzdušju, ki spodbuja zlasti mlade raziskovalce, da predstavijo svoje dosežke in ideje še v zgodnji fazi njihovega raziskovalnega dela. Simpozij nadaljuje tradicijo skupnih konferenc, ki so bile v preteklih letih organizirane v Makedoniji, Poljski, Sloveniji in Madžarski. Simpozij je odprt za udeležence iz vsega sveta. Letošnji simpozij je potekal med 17. in 20. junijem 2018 v Podčetrtku, Slovenija.  Vsem udeležencem se zahvaljujemo za sodelovanje na mednarodnem simpoziju o Aplikativni elektromagnetiki in jih želimo uspešno akademsko kariero.
Ključne besede: applied electromagnetics, electrical machinesn, electromagnetic field, electromagnetic devices, energy efficiency
Objavljeno v DKUM: 04.12.2023; Ogledov: 351; Prenosov: 14
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Energy Efficiency Indicators of a Single Unit House
Iztok Brinovar, Gregor Srpčič, Zdravko Praunseis, Sebastijan Seme, Bojan Štumberger, Miralem Hadžiselimović, 2019, objavljeni znanstveni prispevek na konferenci

Opis: This article deals with the evaluation of energy efficiency indicators of an older single unit house with the use of "KI energija 2017" software, which is widely used among qualified Slovenian experts authorized to carry out the energy performance assessments and issue an energy performance certificate. The energy performance analysis before and after the implementation of proposed measures has shown significant energy saving potential in renovation of existing buildings.
Ključne besede: energy efficiency, energy indicators, energy performance, building renovation, CO2 emissions
Objavljeno v DKUM: 04.12.2023; Ogledov: 386; Prenosov: 16
.pdf Celotno besedilo (18,06 MB)
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Production of artificial cold for industry, based on the magnetocaloric effect
Dorin Botoc, Ionut-Bogdan Rusu, Adrian Plesca, Jurij Avsec, 2020, izvirni znanstveni članek

Opis: The most common current technology for producing artificial cold is based on the operation of gas compression and absorption, which was discovered more than a century ago. This technology uses refrigerants as a heat transfer agent. Magnetic refrigeration is an innovative technology that works based on the magnetocaloric effect and the properties of certain rare materials/metals. The present paper describes a simulation of the magnetocaloric effect (MCE) of a gadolinium plate (Gd.), which is the main component of the active magnetic regenerator (AMR). The first part includes a description and history of the discovery of the magnetocaloric effect of materials that possess such properties. The continuation is a COMSOL Multiphysics modelling of AMR's main component: a gadolinium (Gd) plate. The simulation of the magnetocaloric effects and the heat dispersion on its surface was done in COMSOL, as was the highlighting of the adiabatic temperature on the flat surface of the plate. Water was used as a heat transfer agent, and gadolinium (Gd) was used as a reference criterion for the materials. The model simulates a single step of the magnetic refrigeration cycle and evaluates the AMR's performance with a single board. This study enables identifying the most important characteristics that influence the active magnetic regenerator's thermal behaviour.
Ključne besede: energy efficiency, magnetocaloric material, magnetic refrigeration, active magnetic regenerator
Objavljeno v DKUM: 04.12.2023; Ogledov: 190; Prenosov: 4
.pdf Celotno besedilo (2,53 MB)
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A regenerator used in the installation of magnetic refrigeration devices
Dorin Botoc, Jurij Avsec, Adrian Plesca, 2020, strokovni članek

Opis: In this article, the mechanism and functioning of a refrigeration system based on the magnetic system and the magnetocaloric effect are examined. Magnetic refrigeration plants operate based on a state-of-the-art technology that does not contain any toxic refrigerant that is harmful to the environment and the ozone layer. The magnetocaloric effect is created by a rare earth metal called gadolinium. We have studied the benefits of using this type of mechanism for both domestic and industrial needs. High efficiency, net energy consumption lower than the classic, silent systems, and a lack of typical refrigerant characterize this type of installation. The following layout describes the initial prototype for AMR in magnetocaloric refrigeration.
Ključne besede: energy efficiency, gadolinium material, magnetocaloric effect, alternative technology, AMR
Objavljeno v DKUM: 01.12.2023; Ogledov: 283; Prenosov: 5
.pdf Celotno besedilo (1,19 MB)
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Improving decentralized economic growth and reducing energy consumption in the European Union with the application of ecologically oriented innovations
Niko Natek, Boštjan Krajnc, 2020, strokovni članek

Opis: This article presents applicable approaches for supporting the transition towards sustainable decentralized economic development within the European Union, based on the concept of supporting the development and market uptake of eco-innovations. The main topic addressed is achieving a more effective market uptake of ecologically oriented innovations facilitated through matchmaking, as well as knowledge and technology transfer between key actors of the innovation process.
Ključne besede: Energy efficiency, Ecology, Innovation, Economy, waste-water treatment, constructed wetlands, green-house gas emissions, EU
Objavljeno v DKUM: 15.11.2023; Ogledov: 307; Prenosov: 4
.pdf Celotno besedilo (803,56 KB)
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Impacts of zero-emission powertrains based on hydrogen technologies in public transport
Niko Natek, Boštjan Krajnc, 2020, izvirni znanstveni članek

Opis: This article reviews the development potentials and environmental impact of introducing category M3 vehicles (for passenger transport/buses) with fuel cell electric powertrains to an urban and inter-urban public transport service (PTS) to be operated in the Savinjsko-Šaleška region. The main focus is the demonstration of the PTS modelling and preliminary environmental impact assessment of the operation compared to conventional (modern) diesel-powered internal combustion engines.
Ključne besede: Hydrogen, Fuel Cell, Transport, Energy efficiency, Green-house gas emissions, Energy transition, Environment, Public transport service, Internal combustion Engine, CO2
Objavljeno v DKUM: 15.11.2023; Ogledov: 314; Prenosov: 5
.pdf Celotno besedilo (1,66 MB)
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Green walls : an eco-friendly system for achieving energy efficiency in buildings
Dejan Tasić, Amor Chowdhury, Dalibor Igrec, 2022, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: energy efficiency, green wall, heat losses, modelling
Objavljeno v DKUM: 27.10.2023; Ogledov: 169; Prenosov: 5
.pdf Celotno besedilo (14,78 MB)
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