Kurum Yazarı "Oktay, Zuhal" İçin Listeleme
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Change in heating energy requirements for various interior space temperatures: A case study of Karabuk
Ertürk, Mustafa; Alevay Koçyiğit, G.; Çay, Yusuf; Coşkun, Can; Oktay, Zuhal (0-Belirlenecek, 2013)In this study, the effect of indoor temperature for heating on reduction of heating load in Karabuk province was studied for various cases. The potential heating degree-hour values for Karabuk are utilized by using average ... -
Comparing advanced exergetic assessments of two geothermal district heating systems for residential buildings
Keçebaş, Ali; Coşkun, Can; Oktay, Zuhal; Hepbaşlı, Arif (Elsevier Science Sa, 2014)Advanced exergy analysis method has been increasingly utilized in analyzing and assessing the performance of energy-related systems in recent years due to more deeply investigating the exergy destructions. in this study, ... -
Energy analysis of hydrogen production from a hybrid wind turbine-electrolyzer system
Akyüz, Ersin; Oktay, Zuhal; Dinçer, İbrahim (Springer International Publishing, 2014)In this study, the energy performance of hybrid wind-hydrogen system is investigated. In addition to energy performance, a cost analysis of hydrogen production is also carried out for stand-alone system for different PEM ... -
Estimation of the monthly based hourly wind speed characteristics and the generated power characteristics for developing bidding strategies in an actual wind farm: a case study
Akyüz, Ersin; Demiral, Doğan; Coşkun, Can; Oktay, Zuhal (Springer Heidelberg, 2013)This manuscript proposes a new approach for the estimation of the monthly based hourly wind speed characteristics and the generated power characteristics in an actual wind farm. the proposed approach uses the probability ... -
Investigating the exergetic and environmental effects of subcooling and superheating processes on the performance of direct expansion systems
Söğüt, M. Ziya; Karakoç, Hikmet; Oktay, Zuhal; Hepbaşlı, Arif (Springer International Publishing, 2014)Recently, subcooling and superheating applications, which are proposed as an approach for the efficient use of energy, have positive effect on the emission next to increasing the energy efficiency. This study examines ... -
Investigation of a hybrid solar and geothermal driven absorption cooling system for district applications
Coşkun, Can; Oktay, Zuhal; Dinçer, İbrahim (Inderscience Enterprises Ltd, 2012)In this paper, a new hybrid geothermal and solar driven absorption cooling system (ACS) is proposed for low-temperature district energy applications. Two approaches are proposed in this study, namely: (a) a new model for ... -
Investigation of biogas and hydrogen production from waste water of milk-processing industry in Turkey
Coşkun, Can; Bayraktar, Murad; Oktay, Zuhal; Dinçer, İbrahim (Elsevier, 2012)This study is conducted to determine the potential for producing both biogas and hydrogen from a milk-processing waste water in Turkey. The results of this study indicate that a maximum of 54.2 million m 3 biogas/yr and ... -
A new approach to calculation of energy demand and amount of emission according to different indoor temperature
Ertürk, Mustafa; Oktay, Zuhal; Coşkun, Can; Kılıç, Gülenay Alevay; Daşdemir, Ali (Inderscience Enterprises Ltd, 2015)In this study, annual, monthly and hourly ambient temperature distributions are determined and analysed for Karabuk . For each month of the year, variance of outdoor air temperature, monthly and seasonal heating degree ... -
A new approach to determine the outdoor temperature distributions for building energy calculations
Coşkun, Can; Ertürk, Mustafa; Oktay, Zuhal; Hepbaşlı, Arif (Pergamon-Elsevier Science Ltd, 2014)This study formulated annual, monthly and hourly ambient temperature distributions for simplifying the calculation of cooling and heating degree-hours. in this regard, Turkey was selected as an application country, of which ... -
New parameters for reduction of heating-based greenhouse gas emissions: A case study
Coşkun, Can; Ertürk, Mustafa; Oktay, Zuhal; Dinçer, İbrahim (Springer New York, 2013)In this study, the effect of indoor temperature for heating on reduction of carbon dioxide emissions in Turkey is studied under various conditions. Two new parameters are introduced, namely, carbon dioxide emission reduction ... -
A novel approach for estimation of photovoltaic exergy efficiency
Akyüz, Ersin; Coşkun, Can; Oktay, Zuhal; Dinçer, İbrahim (Pergamon-Elsevier Science Ltd, 2012)In this study, a novel approach is proposed to determine the maximum amount of exergy from the sun when applied to a conventional photovoltaic (PV) system in order to formulate its exergy efficiency. the variations of ... -
Performance assessment of a novel hybrid district energy system
Coşkun, Can; Oktay, Zuhal; Dinçer, İbrahim (Pergamon-Elsevier Science Ltd, 2012)In this paper, a new hybrid system for improving the efficiency of geothermal district heating systems (GDHSs) is proposed. This hybrid system consists of biogas based electricity production and a water-to-water geothermal ... -
Prediction of daily average global solar radiation and parabolic monthly irradiation model parameters for Turkey
Oktay, Zuhal; Coşkun, Can; Ertürk, Mustafa (Springer International Publishing, 2014)The amount of solar radiation falling on the surface of the earth is a very important data for engineers and scientists tomodel the solar energy systems and to design and carry out a performance analysis. Solar global ... -
Sensitivity analysis of implicit correlations for photovoltaic module temperature: A review
Coşkun, Can; Toygar, Uğurtan; Sarpdağ, Özgür; Oktay, Zuhal (Elsevier Sci Ltd, 2017)The module temperature of a PV panel strongly affects the efficient production of electricity. the accurate prediction of module temperature plays an important role in the economic and energy assessment of photovoltaic ...