Yazar "Şahin, O." seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • [ X ]
    Öğe
    An experimental study on drying of pistacia terebinthus in a fixed beddryer
    (2013) Balbay, A.; Ülker, H.; Şahin, O.
    In this study, drying behaviours of the outer shell peeled Bittim (Pistacia terebinthus) with initial moisture content of 42.2% (dry basis (d.b))was investigated in a novel fixed bed drying system. The drying experimentswere performed at different temperatures (40°C, 60°C and 80 oC), air velocities (0.5 m/s and 1 m/s) and weights (30 g and 40 g). A constant rate period was not observed in the drying of bittims; all the drying process occurred in falling rate period. Three models in literature were selected to fitthe experimental data. The fit quality of models was evaluated using the coefficient of determination (R2), sum square error (SSE) and root mean square error (RMSE). Balbay and Sahin model has a good agreement with the experimental data and gave the best results for bittims in a fixed bed system.©2013 Tech Science Press.
  • [ X ]
    Öğe
    The effect of microwave irradiation on a Co-B-based catalyst for hydrogen generation by hydrolysis of NaBH4 solution
    (Bellwether Publishing, Ltd., 2015) Şahin, O.; Kaya, M.; Izgi, M.S.; Saka, C.
    A Co-B-based catalyst was prepared under microwave irradiation for hydrogen generation by hydrolysis of NaBH4 solution. The activity of Co-B catalyst for hydrogen generation was studied in comparison with another Co-B catalyst prepared by the known methods. The results show that Co-B catalyst reduced prepared under microwave irradiation was quick and was completed in only 17 min, while the Co-B catalyst produced in a known method was slow and was completed in 27 min. The hydrogen generation from the hydrolys of NaBH4 with Co-B catalyst was investigated depending on NaBH4 and NaOH concentrations in solution, temperature, microwave applying time, and microwave applying power. Hydrolysis kinetics of NaBH4 were investigated at a temperature range of 30-50°C and zero-order kinetics were applied to the obtained data. Copyright © Taylor & Francis Group, LLC.