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Öğe Analysis of sunshine hours and global solar radiation for Mardin of Turkey(ISITES, 2015) Karakaya, Hakan; Kallioğlu, Mehmet Ali; Avcı, Ali SerkanHaving a strategic area, the energy industry has a critical importance in development policy of a country. Demands of renewable energy have increased in recent years due to energy price, global warming and climatic change. Therefore, the concerns about solar energy, one of the most important clean energy sources, have risen in the last decades. In this study, the empirical solar correlations developed in Turkey and some other countries were investigated for the province of Mardin, Turkey. The compatibility of solar radiation models inspected in terms of statistics was tested by determining the nearest model according to measured data. In addition to climate data which is specific to this region, prediction of Angstroms model was developed to estimate global solar radiation in Mardin. These models, since the mathematical models with the highest compatibility represent the measured data statistically well, it is understood that it can easily be used for daily global solar radiation on horizontal surfaces. The data of the model were obtained from Solar Energy Potential Atlas (GEPA) of Electrical Power Resources Survey Administration (EIE). Angstrom-type model parameters were developed to forecast sunshine average and to compute empirical coefficients for Mardin. Monthly predicted global solar radiation mean values were compared with observed values using statistical parameter coefficient of regression analysis (R²), mean bias error (MBE), root mean square error (RMSE), mean percentage error (MPE), mean absolute percentage error (MAPE), t-statistic (tsat) and the percent error (e) method developed in order to test the compliance of the models. The best developing ideal model was found to be quadric H/H0=-1,3049 (S/S0 ) 2 +2,2791(S/S0)-0,4143 and R 2 0,9492 determined in terms of utilizing the solar radiation potential in Mardin, TurkeyÖğe Optimum insulation thickness assessment of different insulation materials for mid-latitude steppe and desert climate (BSH) region of India(Journals & Books, 2021-01) Kallioğlu, Mehmet Ali; Sharma, Ashutosh; Chinnasamy, Veerakumar; Chauhan, Ranchan; Singh, TejOne of the most effective techniques that is used for energy wastage in buildings is heat insulation. It is possible due to this application to minimize the fuel quantity and accordingly tolerate toxic emissions by finding the optimum point that gives the maximum efficiency. This study was conducted for Jaipur province in Indian climate geography. Climatic characteristics of the region are Mid-Latitude Steppe and Desert Climate (Bsh). Energy need and heat losses in exterior wall were determined by accepting cooling degree day value as T > 24 °C. Optimum insulation thickness, payback period, annual return and annual return rate for XPS and EPS of two different insulating materials respectively are 0.0383–0.0731, 2.35–1.79, 10.95–12.92, 46.84–37.25.Öğe Investigation of the usability of wind energy potential in Batman(Batman Üniversitesi, 2018) Karakaya, Hakan; Avcı, Ali Serkan; Kallioğlu, Mehmet Ali; Ercan, UmutÖğe Examination of energy capacities of hydroelectric power plants in Batman(Batman Üniversitesi, 2018) Karakaya, Hakan; Avcı, Ali Serkan; Kallioğlu, Mehmet Ali; Avcı, Ali Serkan; Durmuş, AydınÖğe Energy efficiency and thermal comfort analysis of traditional Diyarbakır inn(IJSER, 2019-09) Kallioğlu, Mehmet Ali; Yılmaz, Adem; Ünvar, Sinan; Beştaş, BilalThe traditional structures of Diyarbakır is reflect centuries of Mesopotamian culture interms of planning. Beside the walls of Diyarbakır, many buildings and traditional houseswere built with the most suitable materials and components depending on the climaticcharacteristics. It is easy to recycle to the environment because it is made of naturalmaterials and the design in which it conforms to the climatic and geographical structureof the environment in which it is located. In addition, it accommodates ecological andsustainable design criteria with its structure providing comfortable indoor environmentsthat can heat and cool without requiring additional measures. Nowadays, energy efficiencyand thermal comfort analyzes of these designs have been made with the engineeringsimulation program Autodesk Ecotect Analysis. In this study, thermal analysis and solarintensity of Sülüklü Han which was built in 1680 in different days, months and seasonswere investigated. National (BEPY) and international (ASHRAE) standards were evaluatedand simulated as a result of the simulations. Because fossil fuels have come to the end.With this study, energy efficiency of traditional buildings will be examined and energyefficiency will be provided for new buildings. Thus, maximum utilization of solar energy willbe achieved and energy saving will be achieved. title.Öğe Investigating solar energy potential of Diyarbakır province(ISITES, 2015) Kallioğlu, Mehmet Ali; Ercan, Umut; Fidan, Cihad; Şevik, SeyfiNowadays, a large ration its energy needs are changed by fossil fuels. Research into the use of these fuels with limited reserves to be, and renewable energy sources because of the damage they have on the environment are focused. Solar energy, compared to other renewable energy resources in addition to the potential and ease of use has an easier way, you can spread opportunity. In this study, renewable energy sources include solar energy potential of Diyarbakir both existing potential to have both different and important places in the solar based energy production systems in terms of production technology and the degree of use of this potential and the method was investigated. The findings of the survey results indicate that H/H0=-1.0308(S/S0) 2 +1.8082(S/S0)–0.2235 and R2 0.9481 among all statistical mathematical model.Öğe Determination of optimal insulatıon thickness in cooling for Diyarbakır city(Dicle University, 2016) Kallioğlu, Mehmet Ali; Avcı, Ali Serkan; Ercan, UmutIncrease in population and rapid technological progress as the similar energy sources are declining day by day. This situation affects the economic development negatively, which countries are energy dependent outside. Therefore, these countries, including Turkey, determine their energy strategies, productivityoriented policies need to be considered. The savings obtained by insulation will be an additional benefit to the users and therefore to the economy of the country. It is possible to reduce the amount of fuel used and determine the energy to be used as the result of determining the optimal efficiently point where the cost is reduced the most while the cooling is obtained while the cooling is being insulated. The cost of insulation while cooling is minimized, as well as maximum efficiency, reduction of the energy consumption used in the determination of the optimum point can be obtained. In this study, using the life-cycle cost analysis (LCCA), the optimum insulation thickness, annual energy saving and pay-back period analysis were carried out in area cooling at 22 C 0 for Diyarbakır province. Diyarbakir for extruded polystyrene (XPS) used when the optimum thickness of 0.0277 (m), 63.66% annual gain, payback period of 3.13 (years). Expanded polystyrene (EPS) in optimum thickness 0,037 (m), 47.10% annual gain, payback period of 2,069 (years) where such parameters.Öğe Environmental impact of optimum insulation thickness for Kayseri province case(Erciyes Üniversitesi, 2017) Karakaya, Hakan; Kallioğlu, Mehmet Ali; Ercan, Umut; Avcı, Ali Serkan; Genç, ÖmerÖğe A review of phase change materials (PCMs) for thermal storage in solar air heating systems(Journals & Books, 2021-01) Kallioğlu, Mehmet Ali; Sharma, Ashutosh; Chauhan, Ranchan; Chinnasamy, Veerakumar; Singh, TejThe surging energy requirements and greenhouse gas (GHG) emission have directed the research towards the utilization of renewable energy sources especially solar energy. Most of the energy part in domestic and commercial consumption is utilized for air heating and drying which can be improved significantly by utilizing solar air heating applications. The main drawback associated with the solar air heating system (SAHS) is the fluctuation in the availability of solar radiations which can be mitigated by a greater extent with the help of thermal storage. Phase change materials (PCMs) are generally utilized for latent heat storage. The present study reviews the various PCMs utilized in thermal storage with SAHS. Numerous types of PCM materials, their properties and applications in solar air heating system have been reviewed. Heat transfer characteristics enhancement techniques like encapsulation, extended surfaces and conductive particle dispersion have also been studied. The air conditioning demands in the future could be significantly mitigated by utilizing these materials.Öğe Estimating Kilis regions solar radiation by location based statistical models(Kilis 7 Aralık Üniversitesi, 2016) Karakaya, Hakan; Kallioğlu, Mehmet Ali; Ercan, Umut; Avcı, Ali Serkan
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