Scale-up Studies for Photofermentative Hydrogen Production

Date

2017-06-30

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Savaştürk, Dilan
Koku, Harun

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https://hdl.handle.net/11511/73459

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Scale-up studies for photobiological production of hydrogen Savaştürk, Dilan. (Middle East Technical University; 2019) Photofermentative hydrogen production was performed with sugar sources (glucose, fructose or sucrose) utilized by Rhodobacter capsulatus hupbacteria in both smallscale (indoor) and large-scale (outdoor) reactors. In small-scale experiments, the effect of carbon-to-nitrogen ratio (20, 50 and 80) on photofermentative hydrogen production was investigated with 10, 20 and 30mM glucose and fructose feedings. The highest production rates were obtained from 10 mM glucose and 10 mM fructose as 0.45 mol.m-3 .h-1 and ...
Scale-up studies for stable, long-term indoor and outdoor production of hydrogen by immobilized Rhodobacter capsulatus Sagir, EMRAH; ALIPOUR, Siamak; ELKAHLOUT, Kamal; Koku, Harun; Gündüz, Ufuk; Eroglu, Inci; YUCEL, Meral (2017-09-07) Photofermentative hydrogen production by immobilized Rhodobacter capsulatus YO3 was carried out in a novel photobioreactor in sequential batch mode under indoor and outdoor conditions. Long-term H-2 production was realized in a 1.4 L photobioreactor for 64 days using Rhodobacter capsulatus YO3 immobilized with 4% (w/v) agar on 5 mM sucrose and 4 mM glutamate. The highest hydrogen yield (19 mol H-2/mol sucrose) and hydrogen productivity (0.73 mmol H-2 L-1 h(-1)) were achieved indoors on 5 mM sucrose. The eff...
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Scale-model and Simulation-based Assessments for Design Alternatives of Daylight Redirecting Systems in a Side-lighting Educational Room Kazanasmaz, Tuğçe; Hancı Geçit, Burçin; Sevinç, Zeynep; Altınkaya, Gülce; Aksakarya, Gizem; Ergin, Meltem; Öztürk, Yasemin; Grobe, Lars O. (Middle East Technical University, Faculty of Architecture, 2017-11-20) Daylight has been proven to have positive effects on well-being, comfort and performance of occupants in buildings; it specifically increases learning performance in educational buildings. Side-lighting from one direction leads to unbalanced and insufficient illuminance, especially in large and deep spaces. A design studio at the Izmir Institute of Technology (IZTECH) in Urla, Turkey, has been chosen as an example of a space in such a context. Its geometrical attributes has taken to be the baseline. First, ...

Citation Formats

D. Savaştürk and H. Koku, “Scale-up Studies for Photofermentative Hydrogen Production,” 2017, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/73459.