Browsing by Author "Eseller, Kemal Efe"
Now showing 1 - 4 of 4
Results Per Page
Sort Options
thesis.listelement.badge DATA ANALYSIS SOFTWARE DEVELOPMENT OF LASER INDUCED BREAKDOWN SPECTROSCOPY (LIBS)(2022-01-13) AL GUNDOZ, OMER ABDULJABBAR MOHHAMMED; Eseller, Kemal EfeLaser induced breakdown spectroscopy is a useful growing technique. The research’s on LIBS is gaining importance in instrumentation and data analysis fields because it has a large number of applications in different fields especially in industrial, scientific investigation, medical, and many other fields .this study views a theoretical base of the libs technique as well as the setup of libs including new set up which are the portable libs set up which are getting more attention in recent works due to the ease of use and accurate results. From the analytical point of view, LIBS is usually characterized by direct laser ablation. And also the competition is made through a database which is explaining the different elements due to different wavelength and their intensities, which will refer in the end to the elements that the sample consist of: The database being used is coming from the laboratory with multiple experiences. also, this work will focus on detecting specific elements which are FE,CU,ZN,AL and MG.Item Detection of Trace Elements in Metals by LIBS(2022-02-28) EKRIM, MOHAMED LOTFI; Eseller, Kemal EfeTrace Element is a chemical element presents only in minor amounts in a particular sample or environment. Chromium, cobalt, copper, iron, manganese, magnesium, zinc, and other elements that occur in very small amounts as constituents of living organisms, are necessary for their growth, development, and health. In this thesis I did an experiment to detect elements by using laser induced breakdown spectroscopy (LIBS).Item INVESTIGATION OF PHARMACEUTICAL DRUGS AND MEDICINES BY LASER-INDUCED PLASMA (BREAKDOWN) SPECTROSCOPY(2022-02-25) ALMSELLATI, NASER FARHAT; Aydın, Ramazan; Eseller, Kemal EfeLaser-induced Breakdown Spectroscopy (LIBS), which is a laser based diagnostic technique, which is effective to test concentrations various solids, liquids and gases. It's laser-induced breakdown plasma comprises of electrons, and ionic/neutral particles. Neutral and ionized atoms release optical emissions, which help obtaining emission spectrum, which requires analysis. The LIBS spectrum analysis identifies those elements, which are present in a sample and it gives information regarding elemental concentrations in a test medium. This study aims to develop a laser-induced breakdown spectroscopic method to improve the detection limits of the pharmaceutical samples. The study will start with analysis on current techniques. The well-known experimental techniques will also be compared in terms of various accuracy characteristics for measuring different parameters. In conclusion, a new model will be elaborated with respect to pharmaceutical industry based on laser and spectrographic types, and also the limitations on detection capability.Item TECHNO-ECONOMIC OPTIMIZATION OF STANDALONE MICROGRID HYBRID ENERGY SYSTEM IN ZERO ENERGY BUILDINGS FOR REMOTE COMMUNITY IN ANKARA(2022-01-21) AL HAYALI, OTHMAN JASIM MOHAMMED; Mehrtash, Mehdi; Eseller, Kemal EfeIncremental consumption of electrical energy, fossil fuel reduction, high prices of transmission lines and environmental pollution problems drive the countries to develop zero energy buildings (ZEB) in which electricity is generated from renewable energy sources. Wind and solar are the promising energy sources. However, the intermittence nature of these resources reduces the system reliability. Hybrid renewable energy system (HRES) is considered a solution for this problem. To design a HRES, the investors need to consider the minimum configuration cost. In this study, installation of photovoltaic panel (PV) and wind turbine (WT) systems to electrify 30 households in a remote area in Ankara is simulated. Different scenarios have been considered to obtain the optimal hybrid system that can cover the load with the least costs. Hybrid Optimization Model for Multiple Energy Resources (HOMER) software and Particle Swarm Optimization (PSO) algorithm have been applied to obtain the optimal configuration. The HRES that consists of 107 kW PV, 3×10 kW WT, 10 kW diesel generator (DG) and 45×7.15 kWh units of batteries is chosen as the optimal choice to meet the electrical load demand. The cost of energy (COE) and net present cost (NPC) are found as 0.25 $/kWh and 568431 $, respectively. In sensitivity analysis, effects of PV and WT capital costs, fuel price and type of batteries on the system performance are examined to verify the results. As a result, doubling the fuel price has been observed to increase the COE and NPC around 14% and 13%, respectively. As the PV and WT capital costs halved, the COE and NPC decreased by 20% and 12%, respectively. Utilizing a specific battery technology has been seen to reduce both the overall price and gas emissions.