Güncel Gönderiler: Makine Mühendisliği Bölümü Koleksiyonu
Toplam kayıt 286, listelenen: 61-80
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LBM curved boundary treatments for pulsatile flow on convective heat transfer and friction factor in corrugated channels
(Sage Publications, 2023)The present research investigates heat transfer and the flow characteristics of periodically corrugated wavy channels numerically under pulsatile flow conditions. The numerical method used here is Lattice Boltzmann Method ... -
Mikro pim tipi kanatçıklı ve mikro oyuklu ısı alıcıda doymuş kaynamalı akışın deneysel incelenmesi
(Konya Teknik Üniversitesi, 2023)Mikrokanallarda kaynamalı akış, hava araçlarındaki yüksek kapasiteli elektronik sistemler, bilgisayar işlemcileri ve elektrikli araç bataryaları gibi yüksek yoğunluklu atık ısının açığa çıktığı sistemlerde, sürdürülebilirlik ... -
Performance analysis of fresnel lens driven hot water/ steam generator for domestic and industrial use: A CFD research
(Hitit Üniversitesi, 2023)This study presents the design, manufacture, and thermal performance analysis of a Fresnel lens-driven hot water/steam generator. The designed system is suitable for domestic and industrial hot water/steam usage and can ... -
Thermal sensitivity and potential cooling-related energy saving of masonry walls through the lens of solar heat-rejecting paints at varying orientations
(Elsevier, 2023)This study aims to analyse the thermal efficiency of wall elements with varying position-allocation-thickness of insulation, in the aspect of the optical properties of their external paint. A special focus has been placed ... -
Optical, vibrational, electrical, and electrochemical studies of new plasticized methylcellulose-based solid polymer electrolytes for supercapacitor application
(Wiley, 2023)In this work, new plasticized solid polymer electrolytes (SPEs) are developed using MC (methylcellulose) as a polymer host, and sodium iodide (NaI) as a dopant via the solution casting method. Ethyl carbonate (EC) is used ... -
An overview of the principles of low-temperature superplasticity in metallic materials processed by severe plastic deformation
(Japan Institute of Metals (JIM), 2023)Low-temperature superplasticity (LTS) is crucial to reduce manufacturing cost and to enhance the applications of superplastic forming. It is well known that grain refinement is the key point to decrease the temperature at ... -
Effect of isothermal treatment on mechanical and tribological properties of alloy Zn – 40% Al – 2% Cu – 2% Si
(Springer, 2023)The effect of isothermal exposure at temperatures from 100°C to 250°C for 8 hours on the structure, mechanical and tribological properties of the Zn – 40% Al – 2% Cu – 2% Si alloy produced by chill casting is studied. The ... -
Solar salt with carbon nanotubes as a potential phase change material for high-temperature applications: Investigations on thermal properties and chemical stability
(American Chemical Society, 2023)Nano-enhanced phase change materials are highly employed for an enhanced heat-transfer process. The current work reports that the thermal properties of solar salt-based phase change materials were enhanced with carbon ... -
Integration of smart grid with renewable energy sources: Opportunities and challenges – A comprehensive review
(Elsevier, 2023)Renewable energy is the most promising solution to the rising problem of greenhouse gas emissions, and it also contributes to environmental protection. A typical electrical grid is a unidirectional system that converts ... -
Extensive analysis of a reinvigorated solar water heating system using low-density polyethylene glazing
(MDPI, 2023)Solar energy is one of the most promising forms of alternative energy because it has no adverse effects on the environment and is entirely free. Converting solar energy into thermal energy is the most common and straightforward ... -
Experimental performance assessment of a novel insulation plaster as an energy-efficient retrofit solution for external walls: A key building material towards low/zero carbon buildings
(Elsevier, 2023)Thermal insulation plasters have become the focus of attention in the building sector. Among the most important reasons for this is the high thermal energy losses of the buildings. Since conventional briquettes used in ... -
Weather impact on solar farm performance: A comparative analysis of machine learning techniques
(MDPI, 2023)Forecasting the performance and energy yield of photovoltaic (PV) farms is crucial for establishing the economic sustainability of a newly installed system. The present study aims to develop a prediction model to forecast ... -
An experimental case study on the effect of condenser geometry in a refrigerator: Sub-cooling and coefficient of performance issues
(Elsevier, 2023)The study aims to establish the role of the condenser and condenser geometry in the performance enhancement of the future generation of mid-sized refrigerators. Experimental and statistical methods were used to examine the ... -
Investigation on the fatigue behavior of 7075 aluminum alloy at different aging states
(Elsevier, 2023)To study the effect of the aging state on the low-cycle fatigue (LCF) performance of 7075 Al alloy, LCF experiments with different strain amplitudes (& UDelta;& epsilon;/2 = 0.5%- & UDelta;& epsilon;/2 = 0.9%) were conducted ... -
Analysing the impact of insulating material properties on the thermal performance of a novel composite precast concrete walling system exposed to elevated temperatures
(Elsevier, 2023)The use of prefabricated elements is widely adopted in the construction sector to reduce the necessary on-site construction works and time, to maximise efficiency in material use and to mitigate on-site fabrication and ... -
Research on anisotropy of the 7B50 super thick plate
(Elsevier, 2023)In this study, the microstructure and in-plane anisotropy (IPA) of mechanical properties along the normal direction (ND) of the 7B50 Al super thick plate are mainly studied. When adopting the same heat treatment for the ... -
Effect of fin width ratio on thermal performance of fin based-heat sink with phase change materials
(Elsevier, 2023)The rapid development of electronics, coupled with need of miniaturization in the design and manufacture, makes heat dissipation, which is critical for the performance, lifetime, and reliability of the components extremely ... -
Experimental analysis on the impacts of soil deposition and bird droppings on the thermal performance of photovoltaic panels
(Elsevier, 2023)Photovoltaic (PV) systems are capable of meeting the urgent demand for power production for both domestic and commercial purposes. PV systems possess serious drawbacks as their perfor-mance is heavily influenced by ... -
Hybrid solar, wind, and energy storage system for a sustainable campus: A simulation study
(EDP Sciences, 2023)The reliance on grid electricity generated from fossil fuels in many countries continues to contribute to annual CO2 emissions. Implementing renewable energy systems helps reduce the carbon footprint and enhances local ... -
Experimental and theoretical examination of the energy performance and CO2 emissions of room air conditioners utilizing natural refrigerant R290 as a substitute for R22
(Springer, 2023)The purpose of this research is to analyze the performance of an air conditioner that uses natural refrigerant R290 both analytically and experimentally. The feasibility of R290 for R22 air conditioner is examined thoroughly. ...