Yazar "Şevik, Seyfi" için listeleme

Analysis of drying of melon in a solar-heat recovery assisted infrared dryer

Aktaş, Mustafa; Şevik, Seyfi; Amini, Ali; Khanlari, Ataollah (Elsevier Ltd, 2016)

Infrared drying systems are popular in terms of high heat and mass transfer. By using an infrared dryer, it is possible to catch fast heating and short drying time in comparison to the other drying methods. But it consumes ...

Ankara ve ilçeleri için Güneş kolektörü optimum eğim açısının belirlenmesi

Koçer, Abdülkadir; Şevik, Seyfi; Güngör, Afşin (Bursa Uludağ Üniversitesi, 2016)

Öz: Ankara merkez ve ilçeleri bazlı olan bu çalışma, güneş kolektörü ve güneş paneli performanslarını en üst düzeye çıkarmak için optimum eğim açısının belirlenmesi ile ilgilidir. Ankara ilinde sabit güneş kolektörleri ...

Cell-Based Experimental Analysis of a Proton Exchange Membrane Fuel Cell (PEMFC)

Yılmaz, Adem; Şevik, Seyfi; Yakut, Rifat (2019)

This study is focused on cell-based experimental analysis of Proton Exchange Membrane Fuel Cell (PEMFC) with sodium borohydride (NaBH4). The change in cell-based voltage values of 10-cell PEM fuel cell at two different ...

Comparative energy and exergy performance investigation of forced convection solar air collectors with cherry stone powder

Abuşka, Mesut; Şevik, Seyfi; Kayapunar, Arif (Pergamon-Elsevier Science Ltd, 2019)

The purpose of this study is to design new solar air collectors (SACs), to ensure that designed SACs continue to operate in cloudy weather and after sunset and to evaluate in terms of energy and exergy whether the cherry ...

A comparative investigation of the effect of honeycomb core on the latent heat storage with PCM in solar air heater

Abuşka, Mesut; Şevik, Seyfi; Kayapunar, Arif (Elsevier Ltd, 2019)

The aims of this study were to comparatively investigate the effect of using PCM and honeycomb as the internal fin structure in the PCM panel on the thermal performance of solar air heater. The tests performed at six air ...

Determination of drying kinetics and quality parameters of grape pomace dried with a heat pump dryer

Taşeri, Levent; Aktaş, Mustafa; Şevik, Seyfi; Gülcü, Mehmet; Uysal Seçkin, Gamze; Aktekeli, Burak (Elsevier Ltd, 2018)

Pomace of Hamburg Muscat was dried at temperature of drying air 45 °C and different air velocity (1.5, 2.0 and 2.5 m/s) in open-loop heat pump (HP) and laboratory-type closed-loop dryer (as a control). In the HP dryer, it ...

Development of heat pump and infrared-convective dryer and performance analysis for stale bread drying

Aktaş, Mustafa; Şevik, Seyfi; Aktekeli, Burak (Elsevier Ltd, 2016)

This experimental study aims to develop a heat pump dryer (HPD) and an infrared dryer (IRD) also the comparative empirical analyses of these two methods and to analyze the drying kinetic of stale bread sliced 15 mm thickness ...

Drying of grape pomace with a double pass solar collector

Aktaş, Mustafa; Şevik, Seyfi; Dolgun, Ekin Can; Demirci, Burhan (Taylor and Francis Inc., 2019)

This study aims to analyze the performance of a novel design of the double pass solar air collector (DPSAC)-assisted drying system and investigate the drying kinetics of grape pomace which is an agricultural by-product. ...

The effect of blowing direction on heat sink performance by thermal imaging

Abuşka, Mesut; Şevik, Seyfi; Altıntaş, Volkan (Yildiz Technical University, 2018)

Heat sinks (HSs) are designed for the mechanical, electrical and electronic components that generate heat in considerable amount. For this purpose, an aluminum conical pin fin heat sink is designed. Aluminum conical pin-fins ...

Energy, exergy, economic and environmental (4E) analyses of flat-plate and V-groove solar air collectors based on aluminium and copper

Abuşka, Mesut; Şevik, Seyfi (Elsevier Ltd, 2017)

An experimental investigation has been carried out to study the effect of energy, economic, and environment of SACs which are smooth and roughened by v-groove protrusions arranged made of copper and aluminium materials. ...

Enhancing the thermal performance of a solar air heater by using single-pass semi-flexible foil ducts

Şevik, Seyfi; Abuşka, Mesut (Pergamon-Elsevier Science Ltd, 2020)

This study focused on improving the thermal performance of a solar air heater (SAH) using a single-pass semi-flexible foil duct that can be applied directly as an absorber without requiring any surface modification. In ...

Experimental analysis of solar air collector with PCM-honeycomb combination under the natural convection

Abuşka, Mesut; Şevik, Seyfi; Kayapunar, Arif (Elsevier B.V., 2019)

Phase change material (PCM) is at the head of materials commonly used in latent heat storage. However, usually the main problem is that the heat conductivity of PCMs is low. Therefore, a novel solar air collector (SAC) ...

Experimental and numerical analysis of the splay impact on the performance of splayed cross-cut fin heat sink

Şevik, Seyfi; Özdilli, Özgür (Elsevier France-Editions Scientifiques Medicales Elsevier, 2021)

In this study, splayed effects on the thermal performance of standard cross-cut heat sink (S-CCHS), fixed-array splayed (FAS-CCHS), and full splayed (FS-CCHS) under natural and forced conditions are studied experimentally ...

Experimental and numerical investigation on the thermal performance of linear LED housings under forced convection

Abuşka, Mesut; Şevik, Seyfi; Özdilli, Özgür (Pergamon-Elsevier Science Ltd, 2021)

This study aims to experimentally and numerically test the thermal performances of three different linear housings (Model 1-without fin, Model 2-with inner fin, and Model 3-with inner and outer fin) with medium power ...

Experimental performance analysis of sensible heat storage in solar air collector with cherry pits/powder under the natural convection

Abuşka, Mesut; Şevik, Seyfi; Kayapunar, Arif (Elsevier Ltd, 2020)

It is important to enhance the availability of SACs either in cloudy weather or after sunset for space heating and agricultural drying process. In this context, this study aims to determine experimentally thermal performance ...