@book{MTMT:34579739, title = {Alkalmazott épületenergetika}, url = {https://m2.mtmt.hu/api/publication/34579739}, isbn = {9786158196598}, author = {Csoknyai, Tamás and Szalay, Zsuzsa and Nagy, Balázs and Horváth, Miklós and András-Tövissi, Balázs and Barna, Edit and Goda, Róbert and Osztroluczky, Miklós and Severnyák, Krisztina and Szagri, Dóra and Szánthó, Zoltán and Zöld, András}, publisher = {Innovációs és Technológiai Minisztérium; Hungarian Chamber of Engineers; BPMK}, unique-id = {34579739}, year = {2024}, orcid-numbers = {Szalay, Zsuzsa/0000-0001-6537-7982; Nagy, Balázs/0000-0003-1373-5930; Horváth, Miklós/0000-0001-9656-0173; Goda, Róbert/0000-0002-1169-3215} } @article{MTMT:33596209, title = {Szürkevíz hasznosítás a vízigények csökkentésére}, url = {https://m2.mtmt.hu/api/publication/33596209}, author = {Szánthó, Zoltán}, journal-iso = {MAGYAR ÉPÜLETGÉPÉSZET}, journal = {MAGYAR ÉPÜLETGÉPÉSZET}, volume = {7–8}, unique-id = {33596209}, issn = {1215-9913}, year = {2022}, pages = {14-17} } @article{MTMT:32647191, title = {Experimental investigation of a phase change material-based thermal energy storage in a telecommunication site’s cooling system}, url = {https://m2.mtmt.hu/api/publication/32647191}, author = {Andrássy, Zoltán and Szánthó, Zoltán}, journal-iso = {IJLRET}, journal = {INTERNATIONAL JOURNAL OF LATEST RESEARCH IN ENGINEERING AND TECHNOLOGY}, volume = {07}, unique-id = {32647191}, abstract = {The cooling energy usage of data centers and telecommunication sites is enormous and has a growth rate of 11% every year. Finding an energy-efficient solution for cooling needs poses a considerable challenge for engineers. In this article,the performance of a phase change material-based (PCM) thermal energy storage (TES)installed in a telecommunication site are evaluated with the design methods and control optimization. Three representative days of the year (free-cooling, expanded free-cooling and summer period) and their possible savings,as well as the savings of an entire year period are investigated and showcased. During the free-cooling period 83,1% cooling associated electricity consumption was saved with the added indirect free-cooling system through the TES. For the expanded free-cooling period, the TES was charged using the free-cooling and discharged when free-cooling was not possible anymore, accounting for 78,7% cooling associated electricity saving. During the summer period only the chiller’s efficiency was optimized, resulting in 17,1% saving. During 2019. 57,7% and during 2020. 54,8% cooling associated electricity was saved.}, year = {2021}, eissn = {2454-5031}, pages = {31-41} } @inproceedings{MTMT:31356641, title = {Energy storage potential of phase change materials}, url = {https://m2.mtmt.hu/api/publication/31356641}, author = {Andrássy, Zoltán and Szánthó, Zoltán}, booktitle = {EXPRES 2020 12th International Symposium on Exploitation of Renewable Energy Sources and Efficiency}, unique-id = {31356641}, year = {2020}, pages = {24-28} } @article{MTMT:31163251, title = {Use cases of phase change material-based thermal energy storages}, url = {https://m2.mtmt.hu/api/publication/31163251}, author = {Andrássy, Zoltán and Szánthó, Zoltán}, journal-iso = {INT REV APPL SCI ENG}, journal = {INTERNATIONAL REVIEW OF APPLIED SCIENCES AND ENGINEERING}, volume = {11}, unique-id = {31163251}, issn = {2062-0810}, year = {2019}, eissn = {2063-4269}, pages = {67-71} } @article{MTMT:31162328, title = {Használati melegvíz bojlerek alkalmazásának korlátai}, url = {https://m2.mtmt.hu/api/publication/31162328}, author = {Szánthó, Zoltán and Csapó, Dániel}, journal-iso = {MAGYAR ÉPÜLETGÉPÉSZET}, journal = {MAGYAR ÉPÜLETGÉPÉSZET}, volume = {67}, unique-id = {31162328}, issn = {1215-9913}, year = {2019}, pages = {11-16} } @article{MTMT:31160299, title = {Thermal behaviour of materials in interrupted phase change}, url = {https://m2.mtmt.hu/api/publication/31160299}, author = {Andrássy, Zoltán and Szánthó, Zoltán}, doi = {10.1007/s10973-019-08541-w}, journal-iso = {J THERM ANAL CALORIM}, journal = {JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY}, volume = {138}, unique-id = {31160299}, issn = {1388-6150}, year = {2019}, eissn = {1572-8943}, pages = {3915-3924} } @inproceedings{MTMT:30646552, title = {INFLUENCE OF AIR INLET ASPECT RATIO ON THE HALF-BOUNDED AIR JET}, url = {https://m2.mtmt.hu/api/publication/30646552}, author = {Both, Balázs and Goda, Róbert and Szánthó, Zoltán}, booktitle = {EXPRES 2019, 11th International Symposium on Exploitation of Renewable Energy sources and Efficiency}, unique-id = {30646552}, year = {2019}, pages = {60-65}, orcid-numbers = {Goda, Róbert/0000-0002-1169-3215} } @article{MTMT:30638315, title = {Fázisváltó anyaggal töltött energiatároló alkalmazása adatközpontok hűtési energiafelhasználásának csökkentésére}, url = {https://m2.mtmt.hu/api/publication/30638315}, author = {Andrássy, Zoltán and Szánthó, Zoltán}, journal-iso = {MAGYAR ÉPÜLETGÉPÉSZET}, journal = {MAGYAR ÉPÜLETGÉPÉSZET}, volume = {2019}, unique-id = {30638315}, issn = {1215-9913}, abstract = {The cooling energy usage of data centres and telecommunication sites are enormous and has a 11% growing rate every year. It is a big challenge for engineers to find an energy efficient solution for the cooling needs. In this article we demonstrate the HeatTank phase change material-based thermal energy storage and its capabilities to decrease the cooling costs of a telecommunication site. We present 3 representative days of the year and the possible savings of those days and the savings of a full year period.}, year = {2019}, pages = {12-17} } @article{MTMT:30478604, title = {Objective investigation of discomfort due to draught in a tangential air distribution system: Influence of air diffuser's offset ratio}, url = {https://m2.mtmt.hu/api/publication/30478604}, author = {Both, Balázs and Szánthó, Zoltán}, doi = {10.1177/1420326X17702703}, journal-iso = {INDOOR BUILT ENVIRON}, journal = {INDOOR AND BUILT ENVIRONMENT}, volume = {27}, unique-id = {30478604}, issn = {1420-326X}, abstract = {The purpose of this paper is to investigate the influence of air diffuser's offset ratio on air velocity and turbulence intensity distribution. Air velocity, turbulence intensity and air temperature measurements were performed in a single office full-scale room in isothermal case. Then the draught rate numbers were calculated to evaluate the discomfort due to draught using Fanger's model. Different statistical tests were applied to evaluate the measured data. Results showed that the average of air velocity magnitude, turbulence intensity and draught rate was independent of the inlet offset ratio at ankle height. At the knee height and head height of seated and standing person, there was a polynomial connection between the average values and the inlet offset ratio. International standards recommend an average turbulence intensity of 40% to calculate draught rate. The results showed that 70%-80% of measured turbulence intensities were less than the standard value in the investigated range of inlet offset ratio. The draught at ankle height was within category C, while at knee height and head height of seated and standing person, the averaged draught rate numbers meet the category A and B and recommendation of CR 1752. Our results could help designers to calculate the average value of air velocity and turbulence intensity for room air distribution and indoor air comfort design.}, keywords = {TEMPERATURE; turbulence; Thermal comfort; turbulence intensity; air velocity; Engineering, Environmental; Construction & Building Technology; Draught rate; Offset ratio; VENTILATED SPACES}, year = {2018}, eissn = {1423-0070}, pages = {1105-1118} }