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Browsing Energy Systems Engineering / Enerji Sistemleri Mühendisliği by Issue Date

Browsing Energy Systems Engineering / Enerji Sistemleri Mühendisliği by Issue Date

Now showing items 1-19 of 19

An investigation of the near-wake flow structure of a cylinder with guiding plates

Ekinci, Firat; Firat, Erhan; Ozkan, Gokturk M.; Akilli, Huseyin (EFM17 - EXPERIMENTAL FLUID MECHANICS 2017 / E D P SCIENCES, 2018)

this study, the flow behind a circular cylinder with a pair of outer identical guiding plates was investigated using particle image velocimetry (PIV) for various angular positions of the plates (i.e. alpha=+/- 70 degrees, ...
Güneş Hücrelerinin Performansına Baranın Etkisinin İncelenmesi

Ekinci, Firat (Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi / Çukurova Üniversitesi, 2018)

Güneş ışınımın fotovoltaik paneldeki güneş hücrelerinde elektrik enerjisine dönüştürme işlemi, en bilinen ve kullanılan yenilenebilir enerjiden elektrik üretim yöntemidir. Bir fotovoltaik sistemin kalbi güneş modülüdür. ...
Ultrahigh hydrogen-sorbing palladium metallic-glass nanostructures

Sarac, B.; Ivanov, Y. P.; Karazehir, T.; Mühlbacher, M.; Kaynak, B.; Greer, A. L.; Sarac, A. S.; Eckert, J. (Materials Horizons / Royal Society of Chemistry, 2019)

Pd-Based amorphous alloys can be used for hydrogen energy-related applications owing to their excellent sorption capacities. In this study, the sorption behaviour of dc magnetron-sputtered and chronoamperometrically-saturated ...
A Strategic Solution to Turkey’s Intermediate Goods Problem: Ceyhan Energy Specialized Industrial Zone

Ekinci, Firat; Bilgili, Mehmet (Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi / Çukurova Üniversitesi, 2019)

There is an on-going demand for energy from hydrocarbon compounds and intermediate goods in meeting the need for both production and intermediate products. The European Union and Turkey’s need for energy and intermediate ...
Performance Analysis of Grid-Connected Micro-Cogeneration System Based on The Internal Combustion Engine

Yavuzdeger, Abdurrahman; Ekinci, Firat (European Mechanical Science / Ahmet Çalık, 2019)

The effective usage of energy is an important factor in our country and world. The cogeneration system is one of the methods for the effective usage of energy. The cogeneration system in recent technology is about 30% more ...
Oligoether Ester-Functionalized ProDOT Copolymers on Si/Monolayer Graphene as Capacitive Thin Film Electrodes

Karazehir, Tolga; Sarac, Baran; Gilsing, Hans-Detlev; Eckert, Juergen; Sarac, A. Sezai (JOURNAL OF THE ELECTROCHEMICAL SOCIETY / ELECTROCHEMICAL SOCIETY INC, 2020-03)

In this study, electrochemical polymerization of 3,4-propylenedioxythiophene (ProDOT 1), ProDOT bearing oligoether ester (ProDOT-EO-ester 2) and their copolymerization onto homogeneously CVD coated nano-graphene/Si support ...
Advances in the chemical and biological diversity of heterocyclic systems incorporating pyrimido[1,6-a]pyrimidine and pyrimido[1,6-c]pyrimidine scaffolds

Elattar, Khaled M.; Mert, Basak Dogru; Monier, M.; El-Mekabaty, Ahmed (RSC ADVANCES / ROYAL SOCIETY CHEMISTRY, 2020-04)

Heterocycles incorporating a pyrimidopyrimidine scaffold have aroused great interest from researchers in the field of medical chemistry because of their privileged biological activities; they are used as anti-bacterial, ...
Metallic Glass Films with Nanostructured Periodic Density Fluctuations Supported on Si/SiO(2)as an Efficient Hydrogen Sorber

Sarac, Baran; Ivanov, Yury; Karazehir, Tolga; Putz, Barbara; Greer, A. Lindsay; Sarac, A. Sezai; Eckert, Juergen (CHEMISTRY-A EUROPEAN JOURNAL / WILEY-V C H VERLAG GMBH, 2020-07)

Nanostructured metallic glass films (NMGF) can exhibit surface and intrinsic effects that give rise to unique physical and chemical properties. Here, a facile synthesis and electrochemical, structural, and morphologic ...
Soya ve Mısır Yağından Biyodizel Üretiminin Yanıt Yüzey Metodu Kullanılarak Optimizasyonu

Ozgur, Ceyla (Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi = Cukurova University Journal of the Faculty of Engineering / Çukurova Üniversitesi, 2021-05)

Bu çalışmada, soya fasulyesi ve mısır yağı karışımından biyodizel üretim prosesi için optimum parametreleri belirlemek amacıyla yanıt yüzey metoduna dayalı merkezi kompozit tasarımı (CCD) kullanılmıştır. Biyodizel üretiminin ...
The Investigation of Corrosion Performance and Durability of Hydroxyapatite-Coated Titanium Implants and the Effect of Antibiotic Additives

Yazici, Demet; Alpay, Nilgun; Dogru Mert, Basak (Çukurova Üniversitesi Mühendislik-Mimarlik Fakültesi Dergisi = Cukurova University Journal of the Faculty of Engineering / Çukurova Üniversitesi, 2021-09)

In this study, amoxicillin and potassium clavulanate were loaded as antibiotic additives to hydroxyapatite coating (L-HAP) and were used to enhance biocompatibility and corrosion resistance of titanium (Ti) in- vitro ...
Porosity and thickness effect of Pd-Cu-Si metallic glasses on electrocatalytic hydrogen production and storage

Sarac, Baran; Karazehir, Tolga; Yuce, Eray; Muehlbacher, Marlene; Sarac, A.Sezai; Eckert, Jurgen (MATERIALS & DESIGN ELSEVIER LTDS:, 2021-11)

This contribution places emphasis on tuning pore architecture and film thickness of mesoporous Pd-Cu- Si thin films sputtered on Si/SiO2 substrates for enhanced electrocatalytic and hydrogen sorption/desorp-tion activity ...
An Assessment of Active Disturbance Rejection Technique From a Theoretical Perspective

Eker, Deha; Ozbek, Necdet Sinan (Avrupa Bilim ve Teknoloji Dergisi (EJOSAT) = European Journal of Science and Technology / Osman SAĞDIÇ, 2021-12)

This paper discusses a recent disturbance suppression technique namely, active disturbance rejection control (ADRC) from the theoretical perspective. The technique is one of the recently applied control schemes in various ...
An Alternative Approach of Disturbance Rejection Control Methodology to DC-DC Boost Converter

Eker, Deha; Ozbek, Necdet Sinan; Celik, Ozgur (Avrupa Bilim ve Teknoloji Dergisi = The European Journal of Science and Technology (EJOSAT) / Osman SAĞDIÇ, 2022-07)

This study presents an active disturbance rejection control (ADRC) technique for a boost converter system which is represented with a second - order transfer function. Then, linear active disturbance rejection control ...
One-day ahead forecasting of energy production from run-of-river hydroelectric power plants with a deep learning approach

Bilgili, Mehmet; Keiyinci, Sinan; Ekinci, Firat (SCIENTIA IRANICA / Sharif University of Technology, 2022-08)

Accurate energy production forecasting is critical when planning energy for the economic development of a country. A deep learning approach based on Long Short-Term Memory (LSTM) to predict one-day-ahead energy production ...
Impacts of Large-Scale Offshore Wind Power Plants Integration on Turkish Power System

Yalman, Yunus; Celik, Ozgur; Tan, Adnan; Bayindir, Kamil Cagatay; Cetinkaya, Umit; Yesil, Merden; Akdeniz, Mevlut; Tinajero, Gibran David Agundis; Chaudhary, Sanjay K.; Guerrero, Josep M. (IEEE ACCESS / IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2022-08)

In this paper, the impacts of large-scale OWPPs penetration on the Turkish power system are addressed. The grid compliance analyses for the large-scale OWPP integration are carried out by using the grid connection criteria ...
Evaluation of artificial neural network methods to forecast short-term solar power generation: a case study in Eastern Mediterranean Region

Bozkurt, Helin; Macit, Ramazan; Celik, Ozgur; Teke, Ahmet (TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES / TUBITAK SCIENTIFIC & TECHNICAL RESEARCH COUNCIL TURKEY, 2022-09)

Solar power forecasting is substantial for the utilization, planning, and designing of solar power plants. Global solar irradiation (GSI) and meteorological variables have a crucial role in solar power generation. The ...
A hybrid random parameters modification to MPPT algorithm to mitigate interharmonics from single-phase grid-connected PV systems

Hussein, Ibrahem; Celik, Ozgur; Teke, Ahmet (Energy Reports / ELSEVIER, 2022-11)

As the on-grid photovoltaic (PV) system's penetration level increases, the utility grid power quality (PQ) becomes a vital emerging issue to spot the lights on. The recent studies confirmed that one source of interharmonics ...
Exergoenvironmental damages assessment in a desert-based agricultural system: A case study of date production

Hesampour, Reza; Hassani, Mehrdad; Yildizhan, Hasan; Failla, Sabina; Gorjian, Shiva (Agronomy Journal / John Wiley & Sons, Ltd, 2022-11)

Developing countries, especially those in hot and dry areas, need more attention to achieve sustainable development as they apply excessive inputs in production processes. The present study aims to quantify the amount of ...
How May New Energy Investments Change the Sustainability of the Turkish Industrial Sector?

Yildizhan, Hasan; Yildirim, Cihan; Gorjian, Shiva; Ameen, Arman (SUSTAINABILITY / MDPI, 2023-01)

Utilization of renewable energy in the Turkish industrial sector is becoming more important nowadays. The tendency toward renewable energy can be clearly seen with newly planned energy investments. The energy appearance ...

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