@article{MTMT:34799793,
	title = {Power quality assessment and compliance of grid-connected PV systems in low voltage networks using microinverters},
	url = {https://m2.mtmt.hu/api/publication/34799793},
	author = {Atsu, Divine Kafui and Seres, István and Farkas, István},
	doi = {10.1007/s12667-024-00665-9},
	journal-iso = {ENERGY SYSTEMS},
	journal = {ENERGY SYSTEMS: OPTIMIZATION MODELING SIMULATION AND ECONOMIC ASPECTS},
	unique-id = {34799793},
	issn = {1868-3967},
	abstract = {Solar PV has experienced unprecedented growth in the last decade, with the most significant additions being utility-scale solar PV. The role of grid inverters is very critical in feeding power from distributed sources into the grid. With the increasing growth of grid-tied solar PV systems (both rooftop and large-scale), the awareness of power quality issues has risen with new regulations and standards to ensure the stability of the power grid. The power quality of microinverters has been investigated under steady solar irradiation and PV power source and also under real outdoor conditions in compliance with the accepted solar PV integration requirements. The current total harmonic distortion (THD) measured for the studied microinverter under outdoor conditions far exceeded the current THD for the study under steady indoor conditions and was beyond the accepted standard. However, the voltage THD outputs for the two studied cases were in good agreement with the grid codes. The voltage and current THD for the 400 Wm −2 (60 Wp) and the 1000 Wm −2 (146 Wp) scenarios under the steady solar irradiation (solar PV power) were 2.24%, 13%, and 2.27, 6.93%, respectively. The voltage and current THDs for the outdoor study were 2.03% and 14.28% for Solarex (pc-Si module), 1.94%, and 27.43% for Juta (mc-Si modules), and 1.97% and 33.6% for Dunasolar (a-Si glass module). Results showed a strong correlation between the intermittence of solar radiation and the current THD. 67%, 54%, and 37% of the recorded power factor for Dunasolar, Juta, and Solarex modules, respectively, exceeded the limits prescribed by the standards.},
	year = {2024},
	eissn = {1868-3975},
	orcid-numbers = {Farkas, István/0000-0002-6470-1880}
}

@article{MTMT:34787578,
	title = {A szakaszos fűtési üzem hatása az energiamegtakarításra különböző időszakban épült családi házak esetén},
	url = {https://m2.mtmt.hu/api/publication/34787578},
	author = {Páger, Szabolcs and Géczi, Gábor and Földi, László},
	journal-iso = {MAGYAR ÉPÜLETGÉPÉSZET},
	journal = {MAGYAR ÉPÜLETGÉPÉSZET},
	volume = {73},
	unique-id = {34787578},
	issn = {1215-9913},
	abstract = {Mai világunkban az épített környezet tervezése és üzemeltetése terén a fenntarthatóság és energiahatékonyság jelentős kihívásokat jelentenek. Az energia megtakarítása kiemelkedő szerepet játszik az épület határoló szerkezeteinek tervezésében, elsősorban az energia költségeinek emelkedése miatt. A modellezés és szimuláció új lehetőségeket kínálnak hatékonyabb rendszerek kifejlesztésére az energiafogyasztás csökkentése és az optimális hőmérséklet fenntartása érdekében. Kutatásunk szimulációs eredményekre alapozott következtetéseket von le az épülethatároló szerkezetekre vonatkozóan, amelyek megfelelnek az adott időszakban érvényben lévő követelményeknek. Emellett összehasonlítjuk az állandó és szakaszos üzemű fűtési módokat annak érdekében, hogy megvizsgáljuk megtakarítási potenciáljukat.
		Validált modellek segítségével szimuláltuk az épületek fűtési energiaigényét, figyelembe véve különböző időszakokra jellemző határoló szerkezeteket. Hat különböző követelményszint szerint futtattuk le a szimulációkat különböző hőmérsékleti feltételek mellett.
		A kutatás eredményeinek bemutatásához diagramokat és táblázatokat használtunk, hogy szemléltessük az épület határoló szerkezeteinek hőátbocsátási tényezői és a számított fűtési energiaigény közötti összefüggést. Kiemeltük az állandó és szakaszos fűtési üzem közötti különbségeket, hangsúlyozva megtakarítási potenciáljukat.},
	year = {2024},
	pages = {9-17},
	orcid-numbers = {Géczi, Gábor/0000-0002-0909-7131}
}

@article{MTMT:34777460,
	title = {Thermal equilibrium time as a novel characteristic of nanofluid evaluation: An experimental investigation of distilled water-based binary and ternary nanofluids},
	url = {https://m2.mtmt.hu/api/publication/34777460},
	author = {Alshibil, Ahssan and Víg, Piroska and Farkas, István},
	doi = {10.1016/j.molliq.2024.124567},
	journal-iso = {J MOL LIQ},
	journal = {JOURNAL OF MOLECULAR LIQUIDS},
	volume = {400},
	unique-id = {34777460},
	issn = {0167-7322},
	year = {2024},
	eissn = {1873-3166},
	orcid-numbers = {Farkas, István/0000-0002-6470-1880}
}

@article{MTMT:34734709,
	title = {Experimental and numerical investigation of parabolic trough solar collector thermal efficiency enhanced by graphene–Fe3O4/water hybrid nanofluid},
	url = {https://m2.mtmt.hu/api/publication/34734709},
	author = {Al-Rabeeah, Asaad Yasseen and Seres, István and Farkas, István},
	doi = {10.1016/j.rineng.2024.101887},
	journal-iso = {RESULT ENGIN},
	journal = {RESULTS IN ENGINEERING},
	volume = {21},
	unique-id = {34734709},
	year = {2024},
	eissn = {2590-1230},
	pages = {1-13},
	orcid-numbers = {Farkas, István/0000-0002-6470-1880}
}

@article{MTMT:34627771,
	title = {A review of the effect of semi-transparent building-integrated photovoltaics on the visual comfort indoors},
	url = {https://m2.mtmt.hu/api/publication/34627771},
	author = {Khele, Issam and Szabó, Márta},
	doi = {10.1016/j.dibe.2024.100369},
	journal-iso = {DEV BUILT ENVIRON},
	journal = {DEVELOPMENTS IN THE BUILT ENVIRONMENT},
	volume = {17},
	unique-id = {34627771},
	year = {2024},
	eissn = {2666-1659},
	orcid-numbers = {Szabó, Márta/0000-0002-4669-6918}
}

@article{MTMT:34573719,
	title = {Utilization of Small Solar-ORC Integrated with Organic PCMs in Hungary Condition},
	url = {https://m2.mtmt.hu/api/publication/34573719},
	author = {Permana, Diki Ismail and Rusirawan, Dani and Farkas, István},
	doi = {10.1051/e3sconf/202448403014},
	journal-iso = {E3S WEB CONF},
	journal = {E3S WEB OF CONFERENCES},
	volume = {484},
	unique-id = {34573719},
	issn = {2555-0403},
	abstract = {Regarding solar energy resource potential, Hungary has a daily total of around 3.2 to 3.6 kWh/m2 and an annual total of approximately 1168 to 1314 kWh/m2. It makes it a good position for solar thermal collectors in combination with an ORC system. In this study, the authors investigated solar thermal as a heat source to generate electricity, with ORC utilizing R245fa as a working fluid. Due to the limited time for utilizing solar thermal by ORC, while the highest electricity usage is at night, heat storage is carried out by integrating a TES-evaporator using organic PCM.},
	year = {2024},
	eissn = {2267-1242},
	pages = {1-10},
	orcid-numbers = {Farkas, István/0000-0002-6470-1880}
}

@article{MTMT:34572491,
	title = {Energetic analysis of semi-transparent photovoltaic module},
	url = {https://m2.mtmt.hu/api/publication/34572491},
	author = {Anggraeni, Nuha Desi and Seres, István and Farkas, István},
	doi = {10.1051/e3sconf/202448403001},
	journal-iso = {E3S WEB CONF},
	journal = {E3S WEB OF CONFERENCES},
	volume = {484},
	unique-id = {34572491},
	issn = {2555-0403},
	abstract = {Alternatives to traditional fossil-based energy generation are required to combat climate change and air pollution. Solar power has become increasingly appealing due to its infinite supply, ability to mitigate climate change, and non-polluting nature. The semi-transparent photovoltaics have a portion of the cell that allows light to pass through while the rest of the cell generates electricity. Energy analysis on semi-transparent photovoltaic is needed to determine their performance. The studied semi-transparent photovoltaic systems consist of ten modules combined in one panel and two separate panels. The system consists of 2x10 pieces 165 Wp Solarwatt Vision modules with 3,3 kWp capacity. The installation site’s location is the latitude 47.5946° N, 19.3619° E. The energy production of semi-transparent photovoltaics: The highest energy production per year was found in 2018 with a value of 3.18 MWh, followed by 2019, 2021, 2020, and 2017 with values of 2.76 MWh, 2.5 MWh, 2.31 MWh, and 1.68 MWh, respectively. The highest monthly energy production is found in April, May, June, and July, with values of 445618 Wh, 459812 Wh, 442955 Wh, and 496671 Wh, respectively. The further plan is to study PAR components under the modules.},
	year = {2024},
	eissn = {2267-1242},
	pages = {1-12},
	orcid-numbers = {Anggraeni, Nuha Desi/0000-0002-4487-6499; Farkas, István/0000-0002-6470-1880}
}

@article{MTMT:34568219,
	title = {Research Collaboration of ITENAS Bandung – Indonesia and MATE Godollo – Hungary on the Photovoltaic Thematic Field: Achievements and Future Plan},
	url = {https://m2.mtmt.hu/api/publication/34568219},
	author = {Rusirawan, Dani and Hartawan, Liman and Lidyawati, Lita and Bozikova, Monika and Hlavacova, Zuzana and Libra, Martin and Seres, István and Víg, Piroska and Farkas, István},
	doi = {10.1051/e3sconf/202448403011},
	journal-iso = {E3S WEB CONF},
	journal = {E3S WEB OF CONFERENCES},
	volume = {484},
	unique-id = {34568219},
	issn = {2555-0403},
	abstract = {Since the agreement was signed officially in 2013, Institut Teknologi Nasional Bandung (ITENAS Bandung) – Indonesia and Hungarian University of Agriculture and Life Sciences (MATE Godollo) – Hungary have implemented a lot of scholarly activities, and one of them is research collaboration in the field of solar energy, especially in the thematic field of photovoltaic (PV). A set of experimental facilities has been developed and constructed to support related research. Basic facilities to understand the principle of electricity generated by PV, i.e., having the solar power plant (SPP) laboratory scale have been fulfilled by both universities. MATE Godollo has a 10 kWp SPP installation and uses polycrystalline and amorphous silicon PV modules, meanwhile, ITENAS Bandung has 1 kWp SPP and uses monocrystalline silicon PV modules. In this paper, a set of activities related to PV research collaboration between ITENAS Bandung and MATE Godollo will be elaborated, including the output and the outcome of the activities, and plan activities involving other university partners, Slovak University of Agriculture in Nitra – Slovakia and Czech University of Life Science Prague, Czech Republic.},
	year = {2024},
	eissn = {2267-1242},
	pages = {1-8},
	orcid-numbers = {Farkas, István/0000-0002-6470-1880}
}

@article{MTMT:34515728,
	title = {Sunflower solar tree vs. flat PV module: A comprehensive analysis of performance, efficiency, and land savings in urban solar integration},
	url = {https://m2.mtmt.hu/api/publication/34515728},
	author = {Almadhhachi, Mensour and Seres, István and Farkas, István},
	doi = {10.1016/j.rineng.2023.101742},
	journal-iso = {RESULT ENGIN},
	journal = {RESULTS IN ENGINEERING},
	volume = {21},
	unique-id = {34515728},
	abstract = {Solar energy, a prominent form of renewable energy, can be efficiently harnessed through photovoltaic (PV) technology, which has witnessed significant advancements over the past two decades. Solar tree technology has emerged as a solution to several technical challenges associated with PV systems, including land footprint concerns, aesthetic integration, and efficiency optimization. This experimental study compares a traditional flat PV module and a solar tree modeled after a sunflower. The comparative framework encompasses assessments across three distinct tilt angles to evaluate the impact of inclination on energy output. Empirical findings reveal that the sunflower-shaped module can generate 16–23 % more energy than its flat counterpart. Furthermore, temperature assessments indicate that the flat PV module reached a peak temperature of 51 °C, in contrast to the sunflower's maximum of 41 °C. An examination of the ground footprint revealed that the sunflower PV module afforded 85 % land savings relative to the flat PV module. Additionally, the research noted an average temperature reduction of 3 °C in areas shaded by solar trees, offering potential benefits for agricultural applications. © 2024 The Authors},
	year = {2024},
	eissn = {2590-1230},
	pages = {1-11},
	orcid-numbers = {Almadhhachi, Mensour/0000-0002-3944-2872; Farkas, István/0000-0002-6470-1880}
}

@article{MTMT:34515560,
	title = {Enhancing solar air collector performance through optimized entrance flue design: A comparative study},
	url = {https://m2.mtmt.hu/api/publication/34515560},
	author = {Machi, Maytham Hasan Mahdi and Farkas, István and Buzás, János},
	doi = {10.1016/j.ijft.2024.100561},
	journal-iso = {INT J THERMOFLUIDS},
	journal = {INTERNATIONAL JOURNAL OF THERMOFLUIDS},
	volume = {21},
	unique-id = {34515560},
	year = {2024},
	eissn = {2666-2027},
	pages = {1-13},
	orcid-numbers = {Farkas, István/0000-0002-6470-1880}
}