Güncel Gönderiler: Makina Mühendisliği Bölümü / Department of Mechanical Engineering
Toplam kayıt 40, listelenen: 21-40
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Comprehensive Review on the Flow Characteristics of Two-Phase Flows in Inclined Tubes
(Yildiz Technical University, 2021)This paper presents a comprehensive review of research works on condensation and boiling heat transfer characteristics in horizontal, vertical and inclined tubes both smooth and enhanced. Although there are many studies ... -
Güneş enerjisi ile elektrik üretiminde örnek uygulamalar
(İstanbul Arel Üniversitesi Lisansüstü Eğitim Enstitüsü, 2021)Yenilenebilir enerji kaynaklarından biri ve enerji kaynaklarının temeli olan güneş enerjisi, ülkemiz için güneş alma potansiyeli dikkate alındığında enerji üretim kaynakları arasında en baskın olanıdır. Ülkemizde güneş ... -
Experimental investigation of PCM location in a commercial display cabinet cooled by a transcritical CO2 system
(Elsevier, 2020)In this study, the influence of phase change material (PCM) location in a closed display cabinet cooled by a transcritical CO2 refrigeration system was examined experimentally. Two configurations have been investigated ... -
Design and Development of a Refrigerator Door Gasket to Prevent Condensation
(Begell House INC, 2020)Refrigerators are one of the most frequently used household devices; therefore, they represent an interesting subject for investigations. One of these research topics is the condensation problem in the gasket region. Despite ... -
An Experimental Study on Sustainability of Historical Wooden Buildings Exposed to Open Sea Streams
(Slovak Forest Products Research INST, 2020)This research deals with the impact of the microclimate on historical wooden buildings exposed to open sea streams. The Florya Ataturk Marine Mansion in Istanbul, erected on the sea, totally defenceless to weather and sea ... -
Theoretical analysis of a cascade refrigeration system with natural and synthetic working fluid pairs for ultra low temperature applications
(Turkish Soc Thermal Sciences Technology, 2020)In this study, a theoretical model is established using Engineering Equation Solver (EES) software in order to investigate the effects of different design and operation parameters on the performance of the cascade systems ... -
Computational fluid dynamics modeling of surface condensation
(Springer, 2020)This study experimentally and numerically investigates the condensation problem, which is one of the most important problems in chilled ceiling application. In a wide range of applications, including air-conditioning, ... -
Comparative Cost Assessment of Cold Storage Plants and Natural Storage Structures for Potato
(Springer, 2020)The use of a cold storage plant for reducing perishable food losses is insufficient in developing and underdeveloped countries because of required infrastructure and investments. For this reason, many producers continue ... -
Optimization of the finned double-pipe heat exchanger using nanofluids as working fluids
(Springer, 2020)The heat exchanger pipe diameter has a significant effect on the flow characteristics as well as on the initial investment, operation and overall cost. Increasing fin dimensions increases the annulus hydraulic diameters. ... -
Ultra Düşük Sıcaklıklarda Çalışan İki Kademeli Bir Soğutma Sisteminde Aşırı Soğutma ve Isıtmanın Performansa Etkilerinin Sayısal İncelenmesi
(2017)Soğutma sistemleri çalışılmak istenen soğutma sıcaklığına bağlı olarak çeşitli kategorilere ayrılmaktadır. -50°C ve -100°C sıcaklık aralığında gerçekleştirilen soğutma işlemleri ultra düşük sıcaklık uygulaması sınıfına ... -
The performance evaluation of CO2 transcritical booster and R290/R744 cascade refrigeration systems for different cities in Turkey
(International Institute of Refrigeration, 2017)CO2 as a natural and fully environmentally friendly refrigerant has become more preferable in refrigeration systems in recent years. Since its critical temperature is much lower than that of other refrigerants. It is mostly ... -
Numerical investigation for convective heat transfer and friction factor under pulsating flow conditions
(EDP Sciences, 2018)For pulsating flow, the behaviours of the convective heat transfer and friction factor for a periodic corrugated channel are investigated numerically. The finite volume method is used in the numerical study. Three different ... -
Improving performance of transcritical CO2 systems, using phase change materials (PCM) in a cold storage application
(International Institute of Refrigeration, 2019)Thermal energy storage is one of the most promising solutions for energy savings and increasing efficiency. To improve the performance of cold storage applications, incorporating phase change materials (PCM) to these ... -
Alternative approach for the derivation of an eigenvalue problem for a Bernoulli-Euler beam carrying a single in-span elastic rod with a tip-mounted mass
(TECHNO-PRESS, 2015)Many vibrating mechanical systems from the real life are modeled as combined dynamical systems consisting of beams to which spring-mass secondary systems are attached. In most of the publications on this topic, masses of ... -
Experimental and Numerical Analyses of A Heat Pump-Driven Chilled Ceiling Systems
(Begell House, 2018)Passive cooling covers the natural processes of heat dissipation and heat gain operations and provides a highly efficient, comfortable environment around. As commonly known, when air is heated, it rises, when cooled, it ... -
Gözenekli malzemelerin sönümlemeye etkisi
(Afyon Kocatepe Üniversitesi, 2011)Gözenekli ve gözeneksiz malzemelerin titreşim büyüklüğü araştırılmıştır. Metalik köpükler kullanılmıştır. Köpük doğal bir ürün değildir. Kapalı ve açık hücreli metalik köpükler mevcuttur. Gözenekli malzemede sönümleme ... -
Damping properties of open pore aluminum foams produced by vacuum casting and nacl dissolution process
(Elsevier, 2013)In this study,damping ratios of 3 samples made of aluminum foam material, which have different-density pores, were calculated, the effects pore density on damping were examined. Experimental modal analysis method was used ... -
The place of pedagogical training in engineering education
(2014)Academic personnel attendant in engineering education predominantly performs educational functions besides research functions, development and laboratory works. At this stage, the communication and interaction between ... -
The implementation of the high technology methods of cutting on st 50 alloyed steel and the examination of the effects of cutting operation at the surface of material
(2014)Since competition has risen in the manufacturing methods of present conditions, the chance of competition has lost in the situations which new or high technologies aren't exactly known. The proper selection is important ...
