Browsing by Author "Yücel, Halit Lutfi"
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Aspir ve kanola biyodizeli kullanımının egzoz emisyonu ve motor performansına etkilerinin incelenmesi
Aydın, Hüseyin; Işık, Mehmet Zerrakki; Ziyadanoğulları Budak, Neşe; Oktay, Hasan; Bayındır, Hasan; Yücel, Halit Lutfi (Küresel Mühendislik Çalışmaları Dergisi, 2016-04-01)Biodiesel fuel, which can be produced from crude or waste vegetable oil, is an important alternative renewable fuel for diesel engines. Particularly the use of vegetable oils for diesel engines has found an important place ... -
Doğalgazın araçlarda motor yakıtı olarak kullanımının değerlendirilmesi
Budak Ziyadanoğulları, Neşe; Bayındır, Hasan; Yücel, Halit Lutfi (Dicle Üniversitesi, 2013)Clean and cheap alternative energy sources begun to be explored because of increase in air pollution due to exhaust waste of vehicles, global warming and parallel rise in fossil oil prices. Nowadays, natural gas, which ... -
Effect of the air flow rate of blower on the performance of solar still
Argunhan, Zeki; El, Emin; Yücel, Halit Lutfi; Çakmak, Gülşah; Yıldız, Cengiz (Türk Isı Bilimi ve Tekniği Derneği, 2015-06-01)Solar distillation is one of the important methods for water purification. This paper examines the performance of solar distillation system at different air flow rate. To increase the performance of distiller, artificial ... -
Effects of nanofluids on the efficiency of a flat plate solar collector
Budak Ziyadanoğulları, Neşe; Yıldız, Cengiz; Yücel, Halit Lutfi (Fırat Üniversitesi, 2015) -
The efficiency of Al2O3 water nanofluid on a flat plate solar collector
Budak Ziyadanoğulları, Neşe; Yıldız, Cengiz; Argunhan, Zeki; Tekalp, Selen; Yücel, Halit Lutfi (SETCOR publications, 2015)Solar collectors are particular kind of heat exchangers that transform solar radiation energy into internal energy of the transport medium. One of the most effective methods is replacing the working fluid (water, ... -
Experimental and numerical investigation of the effect of turbulator on heat transfer in a concentric-type heat exchanger
Budak Ziyadanoğulları, Neşe; Argunhan, Zeki; Yücel, Halit Lutfi (Taylor & Francis, 2015-05-21)This article experimentally and numerically analyzes the effect of turbulators with different geometries (Type I, Type II, Type III, and Type IV) located at the inlet of the inner pipe in a concentric-type heat exchanger. ... -
Experimental investigation of thermal performance in a concentric tube heat exchanger with wavy inner pipe
Argunhan, Zeki; Çakmak, Gülşah; Yücel, Halit Lutfi; Yıldız, Cengiz (SpringerLink, 2012-06)In this article, the heat transfer, friction factor, and thermal performance factor characteristics of a concentric-tube heat exchanger are examined experimentally. A wavy inner pipe is mounted in the tube with the purpose ... -
The experimental study of nanofluids on a flat-plate solar collector
Budak Ziyadanoğulları, Neşe; Yücel, Halit Lutfi; Yıldız, Cengiz; Işık, Mehmet Kemal (Fırat Üniversitesi, 2017)Solar collectors are particular kind of heat exchangers that transform solar radiation energy into internal energy of the transport medium. One of the most effective methods is replacing the working fluid (water, ethylene ... -
An experimentally investigation of usability of a blend of tallow methyl ester and diesel fuel substitution of diesel fuel in diesel engines
Aydın, Hüseyin; Altun, Şehmus; Öner, Cengiz; Yücel, Halit Lutfi (Gazi Üniversitesi, 2010-07-06)Biodiesel fuels is one of the most attractive alternative fuels to reduce both emissions and petroleum based fuel consumption resulted from diesel engines. Therefore, the effects of biodiesel fuels on long-term engine ... -
Heavy duty operation of a diesel engine biodiesel kerosene and biodiesel kerosene diesel blends
Aydın, Hüseyin; Işık, Mehmet Zerrakki; Bayındır, Hasan; İşcan, Bahattin; Yücel, Halit Lutfi (Afyon Kocatepe Üniversitesi, 2016) -
Konsantrik tip bir ısı değiştiricisinde türbülatörlerin etkisinin sayısal incelenmesi
Oktay, Hasan; Budak Ziyadanoğulları, Neşe; Yücel, Halit Lutfi; Işık, Mehmet Zerrakki (Muğla Sıtkı Koçman Üniversitesi, 2015) -
Konsantrik tip bir ısı değiştiricisinde türbülatörlerin ısı transferine etkisinin deneysel incelenmesi
Budak Ziyadanoğulları, Neşe; Argunhan, Zeki; Yücel, Halit Lutfi (Dicle Üniversitesi, 2013)In this study, the effect of four different types of turbulators placed inside the pipe entrance in a concentric (nested) heat exchanger on heat transfer and pressure drop has been investigated experimentally. For this ... -
Thermal performance enhancement of flat-plate solar collectors by means of three different nanofluids
Budak Ziyadanoğulları, Neşe; Yıldız, Cengiz; Yücel, Halit Lutfi (Elsevier, 2018-12)Solar energy, which comes first among renewable energy sources, enables efficient use of energy with many applications due to its low operating cost and environmental friendliness. In this study, we experimentally investigated ...