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Your search keyword '"Cebeci M"' showing total 9 results
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9 results on '"Cebeci M"'

4. Transport sector transformation: integrating electric vehicles in Turkey's distribution grids.

Author

Tor, O. B., Teimourzadeh, S., Koc, M., Cebeci, M. E., Akınc, H., Gemici, O., Bahar, C., Hildermeier, J., and Saygin, D.

Subjects
TRANSPORTATION industry, RANDOM variables, STOCHASTIC models, KEY performance indicators (Management)
Abstract

This study investigates the impacts of integrating electrical vehicles to pilot distribution grids in Turkey to quantify technical concerns and solutions for the year 2030. Different charging loads that discern home, workplace and public charging are considered under two different cases; "home-charging-support" and "public-charging-support." Random variables describing arrival time of electrical vehicles to the charging stations and associated state of charge at arrival time are modeled with a stochastic approach. Dependencies of electrical vehicle integration capacities of the pilot regions are investigated quantitatively based on several key performance indices. The study also analyzes effects on key performance indicators of demand response by electrical vehicle users, defined as smart charging. Key results show that there is sufficient capacity in the four selected Turkish distribution grids to integrate almost 10% electrical vehicles in the vehicle stock by 2030. Based on the results, priority areas are outlined for stakeholders including energy policymakers. [ABSTRACT FROM AUTHOR]

Published
2021
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5. Measuring Turkish system security using Thermal Security Index.

Author

Cetinay, Hale and Erkut Cebeci, M.

Abstract

In fast growing electricity networks such as the one in Turkey, it is vital for long term investment plans to be done after careful investigation of the existing system situation. As an investment indicator, in this paper, Thermal Security Index (TSI) method is applied to the data of expected Turkish Grid system 2013 Summer Peak including the load flow solutions of the outages of the 400 kV and 154 kV transmission lines and the 400 / 154 kV autotransformers, resulting in total number of 1867 contingencies. For each contingency, the effect of the outage on the other elements are monitored, accumulated, and ranked according to its TSI. In addition, to gain insight about the regional problems of the network, for each region in Turkey, the average effect of an outage is calculated which is directly related with the undesirable load shedding values for both network operator and citizens. As a result, a very useful indicator for determining the future investments plans for transmission system is presented. [ABSTRACT FROM PUBLISHER]

Published
2013

6. A geographical zoning methodology for nodal transmission use-of-system tariffs.

Author

Cebeci, M. E., Tor, O. B., Gencoglu, C., and Guven, A. N.

Abstract

Power systems are generally separated into transmission use-of-tariff (TUoT) zones to simplify the tariff mechanism, particularly for large grids. Each zone is an aggregation of neighboring nodes with similar tariffs that are determined based on long-run marginal cost (LRMC) calculations. This paper proposes a zoning methodology which ensures diversification of zonal tariffs while geographically aggregating the nodal TUoTs by weighted average approach. Investment cost-related pricing (ICRP) and DC-load-flow pricing (DCLFP) methods are utilized in computing the LRMC based nodal tariffs. Performance of the LMRC based pricing methods, sensitivity of the economical parameters on the results, and the proposed zoning approach are investigated for a simple 12-bus generic power system. Given the satisfactory results, TUoT zones of Turkish power network are determined with the proposed zoning algorithm for the tariff period of 2012–2014. [ABSTRACT FROM PUBLISHER]

Published
2012
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9. Investigation of the treatability of molasses and industrial oily wastewater mixture by an anaerobic membrane hybrid system

Author

Öznur Begüm Gökçek, Meltem Sarioglu Cebeci, Sarioglu Cebeci, M., Department of Environmental Engineering, Faculty of Engineering, Cumhuriyet University, Sivas, 58000, Turkey -- Gökçek, Ö.B., Department of Environmental Engineering, Faculty of Engineering, Nigde Ömer Halisdemir University, Niğde, 51100, Turkey, 0-Belirlenecek, and [Cebeci, Meltem Sarioglu] Cumhuriyet Univ, Fac Engn, Dept Environm Engn, TR-58000 Sivas, Turkey -- [Gokcek, Oznur Begum] Nigde Omer Halisdemir Univ, Fac Engn, Dept Environm Engn, TR-51100 Nigde, Turkey

Subjects
Environmental Engineering, Hydraulic retention time, Alkalinity, Industrial Waste, 02 engineering and technology, Wastewater, 010501 environmental sciences, Management, Monitoring, Policy and Law, Waste Disposal, Fluid, Molasses waste, 01 natural sciences, Membrane treatment, Bioreactors, Biogas, Molasses, Organic matter, Anaerobiosis, Waste Management and Disposal, Effluent, 0105 earth and related environmental sciences, chemistry.chemical_classification, Fouling, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, General Medicine, Fatty Acids, Volatile, 021001 nanoscience & nanotechnology, Pulp and paper industry, ComputingMilieux_MANAGEMENTOFCOMPUTINGANDINFORMATIONSYSTEMS, Hybrid system, ComputingMethodologies_PATTERNRECOGNITION, Membrane, chemistry, InformationSystems_MISCELLANEOUS, Automotive industry wastewater, 0210 nano-technology, Pore fouling model
Abstract

WOS: 000442058700032, PubMed ID: 30056349, In this study, the anaerobic treatability of automotive industry wastewater and its treatment in the subsequent membrane system were examined by using molasses, which is a waste of the sugar industry, as a co-substrate. Organic loadings of 3-3, 5-4, and 5gCOD/L/day were applied to a UASB reactor made of steel with a working volume of 7 L. The hydraulic retention time (HRT) was kept constant at 2 days. Temperature, pH, COD, alkalinity, Volatile Fatty acid (VFA) and biogas were monitored. The best COD removal was achieved at the value of 4 gCOD/L/day. The average COD removal rate was 77%. The effluent from the UASB reactor was transferred to the membrane system. The flux reductions of the PW10 kDa UF membrane at different concentrations were 1.717 gCOD/L, 1.934 gCOD/L, 2.257 gCOD/L, 4 gCOD/L, and 8 gCOD/L, and they were 90.78%, 42.69%, 45.88%, 51.00%, and 56.60%, respectively, at the input concentrations. The flux reductions of the UE50 100 kDa UF membrane at the input concentrations of 4 gCOD/L and 8 gCOD/L were 76.00% and 66.25%, respectively. It was determined that the UE50 100 kDa membrane caused more fouling compared to the PW 10 kDa UF membrane. Pore fouling models were determined for the flux reduction in the membranes and the mechanism behind it. Heavy metal and organic matter removals were examined in the effluent obtained from the membrane experiments., Cumhuriyet University [M-514], We would like to express our gratitude to Cumhuriyet University for the financial support it has provided to this study with project No.M-514. The language of the article has been edited by language experts. The present study was conducted within the scope of the Ph.D. thesis by Oznur Begum Gokcek and finished under the supervision of Dr. M. Sarioglu (Cebeci).

Published
2018
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