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Öğe Endüstriyel tav firinlarinda enerji tasarrufu ve emisyon azaltim firsatlari(2014) Eyıdoğan, Muharrem; Kaya, Durmuş; Dursun, Şükrü; Taylan, OsmanBu çalışmada, bir sanayi kuruluşunun LNG (sıvılaştırılmış doğalgaz) yakıtlı haddehane tav fırınında enerji verimliliği çalışması yapılmıştır. Bu kapsamda fırın işletme koşullarında çalışırken sıcaklık, basınç, hız ve yanma gazı ölçümleri yapılmış, ölçüm verileri kullanılarak kütle ve enerji dengesi kurulmuştur. Yapılan hesaplamalarda; fırın genel verimi %52,76 olarak bulunmuştur. Başlıca verim kayıpları; fırının yüksek hava fazlalık katsayısıyla çalıştırılması, reküperatör ısı transfer yüzey alanının yetersiz kalması ve fırın yüzeyi ısı kayıpları olarak belirlenmiştir.Öğe An energy efficiency analysis of an industrial reheating furnace and an implementation of efficiency enhancements methods(Sage Publications Inc, 2014) Kilinc, Enes; Kaya, Durmus; Kilic, Fatma Canka; Eyidogan, Muharrem; Ozkaymak, Mehmet; Taylan, Osman; Pedrycz, WitoldRapid consumption of energy resources, increasing energy needs, the competitive conditions in the industry and environmental concerns, all of those call for efficient use of energy resources. In this context, energy efficiency studies were carried out in a rolling mill of a reheating furnace of an integrated industrial enterprise. In studies, some important efficiency measurements were conducted, mass and energy balances were established by using the results of these measurements and the operating data of the plant along with energy saving opportunities, with the specified amounts and repayment periods were determined. Energy conservation studies that can be realized in the reheating furnace were considered including operation of the reheating furnace with the pertinent excess air coefficient, compensation of the air leakage losses in the recuperator and establishment of the economizer in the furnace. As a result of these investigations some saving opportunities were determined and a new recuperator, economizer and gas analyzer were installed in the reheating furnace leading in total of 2,913,924 kcal/h of energy savings. After the implementation of energy saving measures, reheating furnace efficiency was increased from 61.83% to 69.43%.Öğe ENERGY SAVING AND EMISSION REDUCTION OPPORTUNITIES IN AN INDUSTRIAL ANNEALING FURNACES(Gazi Univ, Fac Engineering Architecture, 2014) Eyidogan, Muharrem; Kaya, Durmus; Dursun, Sukru; Taylan, OsmanIn this study, energy efficiency study has been performed for a LNG (Liquefied Natural Gas) fuel annealing furnace. Within this frame, temperature, pressure, velocity, and gas analysis measurements have been made and energy and mass balances have been formed. From the measured data, the furnace total efficiency was calculated as 52.76%. The main efficiency losses: operating furnace at high air excessiveness coefficient, inadequacy of air preheater heater (recuperator) heat transfer surface area and surface thermal losses.Öğe LIFE-CYCLE ANALYSIS AND TECHNOECONOMIC MODELING OF AN ENERGY GENERATION SYSTEM(Health & Environment Assoc, 2020) Kabli, Mohammad; Taylan, Osman; Bakhsh, Ahmad; Calhan, Rahman; Yilmaz, Mustafa Tahsin; Kaya, Durmus; Canka Kilic, FatmaBiomass is considered as a renewable energy source with increasing popularity because of its energy production and greenhouse gas (GHG) reduction potentials. The heat and electricity are produced with burned gasification products, otherwise the products are treated by synthesis of liquid transport fuels. Biomass gasification is a flexible, efficient, and environmentally acceptable process to meet the future energy demand. In this study, a life cycle analysis (LCA) approach is used to determine the environmental performance of an energy generation plant that is using synthesis gases derived from biomasses. Hence, a life cycle analysis of an Organic Rankine Cycle (ORC) power plant being able to produce 955 kW electrical, 5415 kW thermal power with 15% net electrical efficiency of biomass was carried out. The probability distribution of the daily inventory demand was examined and modeled using historical outcomes of last 200 days, and the results were analyzed. The findings are remarkable to note that the average demand of 1480 kg biomass in the 10-day simulation varies slightly after the daily projected biomass demand of 1402.5 kg calculated. The result of gasification and electrical energy production is waste heat and is used for drying waste biomass in the plant for the heat demands of other units.Öğe Selection of compressors for petrochemical industry in terms of reliability, energy consumption and maintenance costs examining different scenarios(Multi-Science Publ Co Ltd, 2015) Sapmaz, Suleyman; Kilic, Fatma Canka; Eyidogan, Muharrem; Taylan, Osman; Coban, Volkan; Cagman, Selman; Kilicaslan, IbrahimIn this study, based on some important criteria, qualitative and quantitative evaluations were presented for the selection of compressors used in compressed air systems, in a petrochemical industry. Four different scenarios were investigated according to the main criteria considered for the selection of the compressors such as reliability, energy efficiency, investment, and maintenance costs. The types of compressor and their capacities were analyzed and compared. In Scenario I, the currently active electrically driven compressors were considered as backup compressors, instead of them, a new unit turbo compressor and two units of VSD screw compressors were purchased as active compressors. In this scenario, the initial investment cost is low and standby steam consumption is reduced due to the fact that the backup compressors are electrically driven. In Scenario II all active and backup compressors are replaced by a new one, which is proposed to be electrically driven. In this scenario, the initial investment cost is high, but energy consumption is very low. In Scenario III, all active compressors are planned to be replaced by new backup steam-driven compressors. In this scenario, although the initial investment costs and energy consumption are high, the reliability of this scenario is higher than the reliability of Scenarios I and II. In Scenario IV, all compressors are projected to be replaced by new and equivalent compressors. In this scenario, the initial investment cost and energy consumption are high, but the reliability of this scenario is the highest comparing all other scenarios. The aim of this study is to contribute the studies on the selection of compressors by considering some important parameters as their types and capacities, in particular, for industrial enterprises that have risk of explosion like in the petrochemical industry.
