Yazar "Hasmaden, Ferhan" seçeneğine göre listele

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  • Küçük Resim
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    Determination of thermal comfort conditions of an educational building in temperate - humid climate
    (Istanbul Gedik University, 2019) Çağlar, Fatma Zoroğlu; Hasmaden, Ferhan; Atmaca, Ahmet Bircan; Gedik, Gülay Zorer
    The acceptable thermal comfort of the educational buildings will increase the efficiency of the occupants. In the scope of the study, three classrooms in different facades, sizes and heights were determined in a faculty building, in order to check the suitability of thermal comfort conditions of educational buildings. Measurements and surveys were carried out in the determined classrooms during a day in heating period. The human is one of the important parameters that affects thermal comfort conditions. The temperature of the indoor environment varies according to the number of people in the environment because they generate heat depending on metabolic rate. Therefore, the field measurements were conducted occupied and unoccupied classrooms. Classrooms when unoccupied were more comfortable than occupied according to measurement results. It is determined that the occupants are not satisfied with the thermal situation, but in general the environment allows the lesson to be understood and focused. In order to ensure thermal comfort, design parameters such as; the building layout, orientation, building form, internal planning and optical - thermophysical properties of building envelope should be determined properly. In addition, indoor air conditioning should be done according to occupant density and these design parameters.
  • Küçük Resim
    Öğe
    Performance evaluation of fixed and single-axis sun tracker photovoltaic noise barrier: a case study for Turkey
    (Springer, 2024) Hasmaden, Ferhan; Yüğrük Akdağ, Neşe; Zorer Gedik, Gülay
    Photovoltaic Noise Barriers combine strategies for reducing noise and using renewable energy so that roadsides with low-value lands gain effective functions. The relatively low power density of photovoltaic systems and the projection of increasing pressure on urban lands necessitate further studies to maximize solar panel insolation. The dynamic photovoltaic noise barrier system integrated with solar tracking systems can be an efficient solution to maximize energy extraction from solar panels. This paper focuses on the effect of dynamic photovoltaic noise barrier systems on solar energy and noise control efficiency with different scenarios based on fixed and single-axis tracking technology. Annual optimal fixed tilt of the three cities with different solar characteristics were modeled in the base case scenario (S1), and the tilt angles of six-month, seasonal, and monthly periods were modeled in the S2, S3 and S4 scenarios, respectively. The solar output of alternatives was calculated via PVsyst, and noise control performance was analyzed with SoundPLAN. Energy production and noise control performance are improved by shorter tracking periods and also at locations with high clearness index and low average temperature. Systems adjusted to the S4 scenario maximize both energy and noise control performance, as shown by the results. Ankara showed the highest power production increase compared to S1, with percentages of 3.65%, 3.86%, and 4.46% for the S2, S3, and S4 scenarios, respectively. The maximum noise control performance was observed in Ankara and the rate of exposed receiver points decreased from 88 to 70.1% with the S4 scenario compared to S1.