Person: CANBOLAT, AHMET SERHAN
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CANBOLAT
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AHMET SERHAN
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Publication Numerical investigation of multiphase transport model for hot-air drying of food(Galenos Publ House, 2019-01-01) Türkan, Burak; TÜRKAN, BURAK; Canbolat, Ahmet Serhan; CANBOLAT, AHMET SERHAN; Etemoğlu, Akın Burak; ETEMOĞLU, AKIN BURAK; Bursa Uludağ Üniversitesi/Mühendislik Fakültesi.; 0000-0002-4019-7835; 0000-0001-8022-1185; AAI-8222-2021; HPH-3328-2023; ABE-9423-2020; AAI-2745-2021; AAI-9653-2021Drying is widely used to prevent microbial spoilage by evaporating the determined amount of liquid in the food sample. In order to reduce energy consumption and increase food flavor quality, modeling the drying process is crucial. In the literature, different approaches are used for investigation of drying characteristic. Among these approaches, the porous media approach have complex phenomena. Molecular diffusion for gases (water vapor and air), capillary diffusion for liquid (water), and convection mechanisms (Darcy flow) were used in drying model in porous media. In this study, firstly, the effect of shrinkage on drying of porous media was investigated. Non-linear partial differential equations for air and food material in the drying problem were solved numerically for non-steady state condition. The shrinkage effect in the drying process was studied by using the ALE (Arbitrary Lagrangian Eulerian) method. In this study, air velocities of 0.5, 0.8 and 1 m s(-1), air temperatures of 40, 50 and 60 degrees C and the geometric forms of rectangular, cylindrical and square were selected for hot air drying process. The fastest drying was obtained at square shape food at the air temperature of 60 degrees C and the air velocity of 0.5 m s(-1). The analysis result showed that the air velocity and temperature have effect on the drying.Publication A modeling of electricity generation by using geothermal assisted organic rankine cycle with internal heat recovery(Taylor & Francis Inc, 2019-11-07) Bademlioğlu, A. H.; Canbolat, A. S.; CANBOLAT, AHMET SERHAN; Kaynaklı, O.; KAYNAKLI, ÖMER; Bursa Uludağ Üniversitesi/Mühendislik Fakültesi..; HPH-3328-2023In this study, the performance of organic Rankine cycle (ORC), which produces electrical energy, was examined by using a geothermal resource with a temperature of 145 degrees C. The fluids used in the system were determined as dry type fluids, and R142b, R227ea, R245fa, R600, and R600a were preferred as a working fluid. Within the scope of this study, energy and exergy analysis of the system was performed for different evaporator pressures (1000-2000 kPa). With the help of these analyses, the performances of the cycle elements were examined and the first and second law efficiencies of the system were compared for different refrigerants. Considering the selection of refrigerant, and evaporator pressure within the scope of this study, the first and second law efficiencies of the cycle have enhanced maximum of 4.86% and 19.78%, respectively.Publication A parametric analysis of the performance of organic rankine cycle with heat recovery exchanger and its statistical evaluation(Turkish Soc Thermal Sciences Technology, 2019-01-01) Bademlioğlu, Ali Hüsnü; Canbolat, Ahmet Serhan; YAMANKARADENİZ, NURETTİN; CANBOLAT, AHMET SERHAN; Yamankaradeniz, Nurettin; Kaynaklı, Ömer; KAYNAKLI, ÖMER; Bursa Uludağ Üniversitesi/Mühendislik Fakültesi/Makine Mühendisliği Bölümü.; AAA-1753-2021; HPH-3328-2023; AAI-8222-2021In this study, the performance of a case study of Organic Rankine Cycle with heat recovery exchanger using different fluids is analyzed. As the fluids worked in the cycle, the commonly used R134a, R236fa, R245fa, R600a, R717 and R718 are preferred. Cycle performances of the selected fluids are compared based on both the heat source's temperature that changes between 80 degrees C and 109 degrees C and the effectiveness of the heat exchanger. Furthermore, the contribution ratios and the order of importance of the parameters affecting the performance of the cycle are evaluated using the Taguchi statistical method. As a result, the effect of the waste-heat source temperature on the performance of the system is greater than the other parameters examined, and the contribution ratio of this parameter is determined as 59.80%. However, effectiveness of heat exchanger is found to be the least effective parameter and the effect ratio is calculated as 2.18%. In addition, the best and worst operating conditions are determined from the statistical analysis, and in these conditions, the thermal efficiencies of the Organic Rankine Cycle are obtained as 15.26% and 8.61%, respectively.