Güncel Gönderiler: Makine Mühendisliği-Makale Koleksiyonu
Toplam kayıt 108, listelenen: 81-100
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Thrust performance evaluation of a turbofan engine based on exergetic approach and thrust management in aircraft
(Walter De Gruyter Gmbh, 2017)The environmental parameters such as temperature and air pressure which are changing depending on altitudes are effective on thrust and fuel consumption of aircraft engines. In flights with long routes, thrust management ... -
Surface roughness analysis of greater cutting depths during hard turning
(Carl Hanser Verlag, 2017)Literally, hard machining describes machining of parts having hardness over 45 HRC. Besides its advantages like high metal removal rate, easiness of adapting to complex part geometries, possibility of dry cutting; this ... -
Assessment of degradation effects for an aircraft engine considering exergy analysis
(Pergamon-Elsevier Science Ltd, 2017)Despite the improvements in engine technology, the combustion processes and wear occurred in engine components affect performance adversely. The turbine and compressor fouling, degradation mechanisms such as erosion, ... -
Mechanical performance of marine sandwich composites subjected to flatwise compression and flexural loading: Effect of resin pins
(SAGE Publications Ltd, 2018)Mechanical performance of marine sandwich panels comprising E-glass/vinyl ester face sheets and perforated poly-vinyl chloride foam core was evaluated and compared with conventional foam core sandwich panels. Circular ... -
A new model for exergetic optimum insulation thickness
(Inderscience Enterprises Ltd., 2017)A new approach is presented to predict the exergetic optimum insulation thickness and the payback period. The calculation method consists of four innovations, namely, heating/cooling degree-hour figures for any given time ... -
Compression after low velocity impact tests of marine sandwich composites: effect of intermediate wooden layers
(Elsevier Sci Ltd, 2018)In the present work, compression after impact (CAI) behavior of sandwich composite materials with intermediate wooden layers was investigated. Sandwich panels were manufactured by using vacuum assisted resin transfer molding ... -
Bolted joints in quasi-unidirectional glass-fibre NCF composite laminates
(Elsevier Sci Ltd, 2018)In this study, crossply and quasi-isotropic quasi-unidirectional (quasi-UD) non-crimp fabric (NCF) glass/epoxy laminates were manufactured by using vacuum assisted resin transfer moulding (VARTM) and tested according to ... -
Calculation of fuel consumption and emissions in buildings based on external walls and windows using economic optimization
(Gazi Univ, 2018)In this study, emissions and fuel consumption calculations are made based on external walls and windows by using economic optimization in the buildings of Aydin, Amasya, Eskisehir and Ardahan located in four different ... -
A new risk assessment approach for the analysis of musculoskeletal disorders
(Gazi Univ, 2018)In this study a new risk assessment method for the evaluation of musculoskeletal disorders is proposed. "Musculoskeletal Discomfort Questionnaire" which was developed by Cornell University and widely used in the literature ... -
Experimental investigation of pinned joints in ncf glass-fibre reinforced composite plates
(Gazi Univ, 2018)In this study, mechanical behaviour of quasi-unidirectional (quasi-UD) non-crimp fabric (NCF) reinforced composite plates with pinned joints was investigated experimentally. Composite laminates with three different cross-ply ... -
Evaluation of tool wear for hard turning operations through response surface methodology
(Gazi Univ, 2018)In the present work, the relationship between tool wear and the cutting parameters (cutting speed, V-c; feed, f; depth of cut, a(p)) was investigated in hard part turning operations of cold work tool steel (AISI D2) hardened ... -
Field study to analyse luminous comfort in classrooms
(Ice Publishing, 2018)This study analysed current daylighting conditions in terms of luminous comfort in the classrooms of Balikesir University in Turkey. This was managed through a questionnaire survey and numerical simulations in 16 different ... -
Estimating fracture toughness of various matrix structured ductile iron using circumferentially notched tensile bars
(Pergamon-Elsevier Science Ltd, 2018)In this experimental study, circumferentially notched tensile (CNT) specimens with various notch root radii of 0.05, 0.1, 0.16, 0.25, 0.4, and 0.8 mm were employed to investigate the influence of matrix structure on the ... -
Experimental investigation on low-velocity impact response of wood skinned sandwich composites with different core configurations
(Elsevier Science, 2018)alternative design configurations were developed by using rubber-cork and E-glass composite layers between the foam core and wood skin in order to improve the impact performance of conventional sandwich composites. ... -
Kazan bacalarında meydana gelen enerji ve ekserji kayıpları
(2006)Enerji girdilerin artması, fosil yakıtların yanması sonucunda ortaya çıkan çevre problemleri, termal sistemlerde enerji verimliliğini ve tasarrufunu gündeme getirmektedir. Özellikle ülkemizde enerji maliyetlerinin yüksek ... -
Güneş enerjisiyle çalışan ısı pompasının deneysel incelenmesi
(2006)Güneş enerjisiyle çalışan ısı pompasının performansını incelemek amacıyla, Erzurum ilinde bir deney düzeneği kurulmuştur. Sistem, 12 adet düzlemsel güneş enerjisi toplayıcısı, güneş enerjisi depolama tankı, su-su plakalı ... -
AISI 304 östenitik paslanmaz çeliklerin titanyum karbür kaplamalı kesici takım ile tornalama işleminde kesme kuvvetlerinin incelenmesi
(2007)Bu araştırmada, AISI 304 östenitik paslanmaz çeliklerin titaniyum karbür kaplı kesici takımlarla tornalama işleminde oluşan kesme kuvvetleri deneysel olarak incelenmiş ve elde edilen sonuçlar teorik sonuçlarla karşılaştırılmıştır. ... -
Uzaktan eğitim: Makine mühendisliği örneği
(2007)Bu çalışmanın amacı; mühendislik fakültesi makina mühendisliği bölümü öğrencilerinin bilgisayar ve internet kullanımı ile ilgili çeşitli özelliklerini betimlemek; internet destekli olarak yürütülen Isıtma-Havalandırma dersi ... -
Epoksi ve polyester reçineli polimer betonda granülometri ve bağlayıcı oranları değişimiyle eğilme dayanımı optimizasyonu
(2006)Polimer betonlar, farklı iki veya daha fazla malzemeden oluşmuş kompozit malzemelerdir. Dolgu malzemesi, reçine, sertleştirici, hızlandırıcı, matris yapıya takviye malzemeler bileşenlerdir. Bir tezgah için gövde veya ... -
Bölgesel ısıtma sistemleri boru hatlarında meydana gelen enerji ve ekserji kayıpları
(2006)Türkiye'de konut sektöründe tüketilen enerji toplam enerji tüketiminin yaklaşık üçte biri kadardır. Bundan dolayı konut sektöründeki enerji tasarrufu ve verimliliği üzerinde durulması gereken önemli konudur. Bu çalışmada ...
