Browsing by VGTU prioritized fields "AE0101 - Efektyvus išteklių ir energijos naudojimas / Efficient use of resources and energy"
Dabar rodomi įrašai 1-20 iš 128
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2D CFD simulation of dynamic heat transfer in an open-type refrigerated display cabinet
(Applied sciences, 2022)This study uses a simplified two-dimensional time-dependent computational fluid dynamic (CFD) model to study the influence of wall shelf configuration and outtake honeycomb inclination angle on the performance of the air ... -
A circular economy model for fossil fuel sustainable decisions based on MADM techniques
(Economic research-Ekonomska istraživanja, 2022)Fossil fuels as the primary energy source create career opportunities, provide industries with vital raw material and energy resources, have harmful emissions to the environment and are also related to finite natural ... -
A comparative assessment of the suitability of phosphogypsum from different origins to be utilised as the binding material of construction products
(Journal of building engineering, 2021)Phosphogypsum (PG) is a by-product with an enormous potential to be used in construction products as a binding material. However, the performed studies are often focused on narrow aspects regarding its properties, and ... -
A review of the life cycle analysis results for different energy conversion technologies
(Energies, 2022)Technologies that use renewable energy sources (RES) are crucial to achieving decarbonization goals, but a significant number of studies show their relatively high environmental impact during the production phase. Therefore, ... -
A simple method for stator inductance and resistance estimation for PMSM at standstill
(International journal of robotics and control systems, 2022)An accurate stator resistance and inductance are necessary for high-performance permanent magnet synchronous motor (PMSM) control. The stator resistance and inductance can be estimated during motor standstill op-eration. ... -
A thermal analysis of smart glazing under the weather conditions of Fez
(Energy procedia. International scientific conference “Environmental and climate technologies” , CONECT 2018, 16-18 May 2018, Riga, Latvia, 2018)This paper presents a thermal comparative study of four types of glass that was been conducted in both summer and winter: simple glass SiO2, dioxide of vanadium un-doped glass, vanadium dioxide glass doped with 3 % tungsten ... -
Administracinio pastato ilgalaikės stebėsenos duomenų analizė ir valdymo efektyvumo įvertinimas
(25-osios Lietuvos jaunųjų mokslininkų konferencijos „Mokslas – Lietuvos ateitis“ teminės konferencijos "Pastatų energetika" straipsnių rinkinys, 2022 m. balandžio 28 d. = Proceedings of the 25th conference for junior researchers “Science – Future of Lithuania” "Building energetics", 28 April 2022, Vilnius, Lithuania, 2022)Šiltėjantis pasaulio klimatas ir su tuo susiję padariniai, įpareigoja mažinti pirminės ir galutinės energijos vartojimą. Tiek Lietuvoje, tiek pasaulyje vieną didžiausių energijos taupymo potencialų turi pastatų sektorius. ... -
Administracinio pastato sistemų valdymo efektyvumo vertinimas remiantis ilgalaike stebėsena
(Mokslas – Lietuvos ateitis. Aplinkos inžinerija = Science – Future of Lithuania. Environmental engineering, 2022)Klimato kaita ir su tuo susiję padariniai kelia egzistencinę grėsmę Europai ir pasauliui, o daugiau kaip 75 % Europos Sąjungoje išmetamo šiltnamio efektą sukeliančių dujų kiekio susidaro gaminant ir naudojant energiją. Dėl ... -
Alfa tipo Stirlingo variklio šiluminių ir galios parametrų modeliavimas
(Inžinerinės ir edukacinės technologijos = Engineering and educational technologies, 2019)Straipsnyje pateikti α-tipo Stirlingo variklio galios ir šiluminių parametrų skaitmeninio modeliavimo rezultatai. Rezultatai gauti naudojant „Stirlingpro“ programinę įrangą. Nustatyta, kad suprojektuoto variklio didžiausia ... -
Alternatyvių vėdinimo sistemų ir mikroklimato tyrimai gyvenamajame name
(Mokslas – Lietuvos ateitis: Aplinkos inžinerija – 2018 = Science – future of Lithuania: Environmental engineering - 2018, 2018)Tyrimo tikslas buvo nustatyti, kokia vėdinimo sistema – centralizuota ar decentralizuota – ekonominiu, energiniu bei komforto požiūriu yra pranašesnė individualiame gyvenamajame name. Darbo aktualumas susijęs ... -
An efficiency study of the aerodynamic sound generators suitable for acoustic particle agglomeration
(Engineering, Technology & Applied Science Research (ETASR), 2020)The object of this study is the acoustic field generated by aerodynamic acoustic generators of various types and designs. Six types of aerodynamic acoustic generators were studied experimentally and theoretically to determine ... -
An experimental investigation of the performance, emission and combustion stability of compression ignition engine powered by diesel and ammonia solution (NH4OH)
(International journal of engine research, 2021)This study presents experimental examinations of a stationary single-cylinder compression ignition dual fuel engine for the combustion of diesel fuel with water ammonia solution (WAS). The effect of 25% WAS on the combustion, ... -
Analysis of actual indoor climate parameters of a supermarket in terms of energy efficiency
(Journal of new technologies in environmental science (JNTES), 2022)This article presents the analysis of the actual indoor climate parameters of an existing supermarket, which influence the energy consumption of the building's HVAC systems. The study is performed using the data of the ... -
Analysis of actual indoor climate parameters of a supermarket in terms of energy efficiency
(VI international scientific-technical conference "Actual problems of renewable energy, construction and environmental engineering", 24–27 November 2022, Kielce University of Technology, Poland : book of abstracts, 2022)This article presents the analysis of the actual indoor climate parameters of an existing supermarket, which influence the energy consumption of the building's HVAC systems. The study is performed using the data of the ... -
Analysis of design and technological processes of hot recycling asphalt mixture at batch asphalt mixing plants
(11th International conference "Environmental Engineering", 21-22 May 2020, Vilnius Gediminas Technical University, Lithuania, 2020)European Union members seek to establish the principles of a circular economy, which is based on the efficient use of raw materials and resources. This requirement will have an impact on business and in particular on the ... -
Analysis of waste heat recovery in a water treatment plant and the use of this heat in a commercial building
(Journal of new technologies in environmental science (JNTES), 2022)Effective energy use plays a crucial role in the conservation of energy sources. The recovery of waste energy is one of the available energy saving potentials and can be the possibility of ensuring the energy needs of ... -
Analysis of wastewater heat recovery in the wastewater treatment plant and recovered heat use in commercial building
(VI international scientific-technical conference "Actual problems of renewable energy, construction and environmental engineering", 24–27 November 2022, Kielce University of Technology, Poland : book of abstracts, 2022)About 40% of the heat produced in cities is discharged into the sewer along with the used water [1]. Depending on the purpose of the water, the wastewater temperature ranges from 10 °C to 40 °C [2], so the wastewater ... -
Atsinaujinančios energijos šaltinių diegimo modernizuojamuose pastatuose įvertinimas gyvavimo ciklo požiūriu: atvejo analizė
(Mokslas – Lietuvos ateitis. Aplinkos inžinerija = Science – Future of Lithuania. Environmental engineering, 2019)Modernizuojant daugiabučius pastatus, vis dažniau integruojamos atsinaujinančios energijos technologijos, tačiau jų nauda retai vertinama kompleksiniu: aplinkosauginiu, energiniu ir ekonominiu – požiūriais. Straipsnyje ... -
Aukštųjų Panerių mikrorajono (Vilniaus m.) vandentiekio sistemos hidraulinis modeliavimas ir optimizavimas
(23-iosios Lietuvos jaunųjų mokslininkų konferencijos „Mokslas – Lietuvos ateitis“ teminės konferencijos "Aplinkos apsaugos inžinerija" straipsnių rinkinys, 2020 m. gegužės 8 d. = Proceedings of the 23th conference for junior researchers “Science – Future of Lithuania” "Environmental protection engineering", 8 May 2020, Vilnius, Lithuania, 2020)Hidraulinis modelis yra modernus įrankis, kuris taikomas vandentiekio sistemos darbo analizei visame pasaulyje. Pasitelkiant hidraulinį modeliavimą, galima analizuoti įvairius scenarijus vandentiekio tinkle, kad būtų galima ...