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- Lecture Notes (4)
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- Bernoulli-Like Fractional Equation (1)
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- Stokes’ first problem (1)
- Surface Temperature Evolution (1)
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- Viscoelastic (1)
- Publication
Articles 1 - 19 of 19
Full-Text Articles in Mechanical Engineering
26 - تحليل تأثيرگذاري ميزان مقاومت حرارتي جداره و جهت جداره هاي نورگذر بر اندازه بهينه پنجره در اقليم تهران, Mona Khatami, Maria Kord-Jamshidi, Behrouz Mohamad Kari, Alireza Zolfaghari
26 - تحليل تأثيرگذاري ميزان مقاومت حرارتي جداره و جهت جداره هاي نورگذر بر اندازه بهينه پنجره در اقليم تهران, Mona Khatami, Maria Kord-Jamshidi, Behrouz Mohamad Kari, Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
25 - تحليل تأثيرات استفاده از عايقهاي تغيير فاز دهنده بر ميزان مصرف سالانه انرژي ساختمان در اقليم تهران, Alireza Zolfaghari, Mohamad Solhi, Mohamad Fathian, Hamed Moslehi, Mohamad Rahim-Pour, Mehran Sa'adati-Nasab
25 - تحليل تأثيرات استفاده از عايقهاي تغيير فاز دهنده بر ميزان مصرف سالانه انرژي ساختمان در اقليم تهران, Alireza Zolfaghari, Mohamad Solhi, Mohamad Fathian, Hamed Moslehi, Mohamad Rahim-Pour, Mehran Sa'adati-Nasab
Dr Alireza Zolfaghari
No abstract provided.
24 - تحليل عملکرد کانالهاي زير زميني جهت تامين هواي لازم براي تهويه فضاهاي صنعتی با در نظر گرفتن زمان لازم براي احياي سيستم, Alireza Zolfaghari, Mozhgan Nikoudel, Hosein Vatan-Pour
24 - تحليل عملکرد کانالهاي زير زميني جهت تامين هواي لازم براي تهويه فضاهاي صنعتی با در نظر گرفتن زمان لازم براي احياي سيستم, Alireza Zolfaghari, Mozhgan Nikoudel, Hosein Vatan-Pour
Dr Alireza Zolfaghari
No abstract provided.
Combustion Characteristics Of Late Injected Cng In A Spark Ignition Engine Under Lean Operating Condition, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman
Combustion Characteristics Of Late Injected Cng In A Spark Ignition Engine Under Lean Operating Condition, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman
Ftwi Yohaness Hagos
Lean combustion strategy is used as a tool in the reduction of greenhouse gas emission in a natural gas fuelled engines. It also increases the thermal efficiency of the combustion. In this study, late injection and stratification effect of lean charge CNG combustion in a four stroke direct injection spark ignited engine was experimentally investigated. The fuel injection is kept at 90° Crank Angle (CA) Before Top Dead Center (BTDC) and the ignition timing at 28° CA BTDC at wide open throttle. Results from this study demonstrate that Indicated Mean Effective Pressure (IMEP), it's Coefficient Of Variation (COV), in cylinder …
My Lecture Notes (Power Plant Engineering) - Chapter 4, Dr Alireza Zolfaghari
My Lecture Notes (Power Plant Engineering) - Chapter 4, Dr Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
Super Critical Steam Turbine, Vijaya Krushna Varma Mr
Super Critical Steam Turbine, Vijaya Krushna Varma Mr
VIJAYA KRUSHNA VARMA Mr
Varma designed ultra modern and high efficiency turbines which can use gas, steam or fuels as feed to produce electricity or mechanical work for wide range of usages and applications in industries or at work sites. Varma turbine engines can be used in all types of vehicles. These turbines can also be used in aircraft, ships, battle tanks, dredgers, mining equipment, earth moving machines etc http://turbine.net.in
My Lecture Notes (Power Plant Engineering) - Chapter 3, Dr Alireza Zolfaghari
My Lecture Notes (Power Plant Engineering) - Chapter 3, Dr Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
My Lecture Notes (Power Plant Engineering) - Chapter 2, Dr Alireza Zolfaghari
My Lecture Notes (Power Plant Engineering) - Chapter 2, Dr Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
کارگاه تخصصی آسايش حرارتی, Dr Alireza Zolfaghari
کارگاه تخصصی آسايش حرارتی, Dr Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
An Exercise With The He’S Variation Iteration Method To A Fractional Bernoulli Equation Arising In A Transient Conduction With A Non-Linear Boundary Heat Flux, Jordan Hristov
Jordan Hristov
Surface temperature evolution of a body subjected to a nonlinear heat flux involving counteracting convection heating and radiation cooling has been solved by the variations iteration method (VIM) of He. The surface temperature equations comes as a combination of the time-fractional (half-time) subdiffusion model of the heat conduction and the boundary condition relating the temperature field gradient at the surface through the Riemann-Liouville fractional integral. The result of this equation is a Bernoulli-type ordinary fractional equation with a nonlinear term of 4th order. Two approaches in the identification of the general Lagrange multiplier and a consequent application of VIM have …
My Lecture Notes (Heat Transfer - Chapter 1), Dr Alireza Zolfaghari
My Lecture Notes (Heat Transfer - Chapter 1), Dr Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
Integral-Balance Solution To The Stokes’ First Problem Of A Viscoelastic Generalized Second Grade Fluid, Jordan Hristov
Integral-Balance Solution To The Stokes’ First Problem Of A Viscoelastic Generalized Second Grade Fluid, Jordan Hristov
Jordan Hristov
Integral balance solution employing entire domain approximation and the penetration dept concept to the Stokes’ first problem of a viscoelastic generalized second grade fluid has been developed. The solution has been performed by a parabolic profile with an unspecified exponent allowing optimization through minimization of the norm over the domain of the penetration depth. The closed form solution explicitly defines two dimensionless similarity variables and , responsible for the viscous and the elastic responses of the fluid to the step jump at the boundary. The solution was developed with three forms of the governing equation through its two dimensional forms …
Thermal Impedance At The Interface Of Contacting Bodies: 1-D Example Solved By Semi-Derivatives, Jordan Hristov
Thermal Impedance At The Interface Of Contacting Bodies: 1-D Example Solved By Semi-Derivatives, Jordan Hristov
Jordan Hristov
Simple 1-D semi-infinite heat conduction problems enable to demonstrate the potential of the fractional calculus in determination of transient thermal impedances of two bodies with different initial temperatures contacting at the interface ( ) at . The approach is purely analytic and uses only semi-derivatives (half-time) and semi-integrals in the Riemann-Liouville sense. The example solved clearly reveals that the fractional calculus is more effective in calculation the thermal resistances than the entire domain solutions
10 - استفاده ي مؤثر از شناور حرارتي وسايل گرمايشي احتراقي به منظور کنترل کيفيت هواي داخل, Chamran Nowrouzi, Mehdi Maerefat, Alireza Zolfaghari
10 - استفاده ي مؤثر از شناور حرارتي وسايل گرمايشي احتراقي به منظور کنترل کيفيت هواي داخل, Chamran Nowrouzi, Mehdi Maerefat, Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
Varma Steam Turbine, Vijaya Krushna Varma Mr
Varma Steam Turbine, Vijaya Krushna Varma Mr
VIJAYA KRUSHNA VARMA Mr
Varma turbines are ultra modern and high efficiency turbines which can use gas, steam or fuels as feed to produce electricity or mechanical work for wide range of usages and applications in industries or at work sites. Varma turbine engines can be used in all types of vehicles. These turbines can also be used in aircraft, ships, battle tanks, dredgers, mining equipment, earth moving machines etc
My Lecture Notes (Power Plant Engineering) - Chapter 1 فصل اول درس نيروگاه حرارتی, Dr Alireza Zolfaghari
My Lecture Notes (Power Plant Engineering) - Chapter 1 فصل اول درس نيروگاه حرارتی, Dr Alireza Zolfaghari
Dr Alireza Zolfaghari
No abstract provided.
Ogólnotechniczne Podstawy Biotechnologii Z Elementami Grafiki Inżynierskiej Ćw., Wojciech M. Budzianowski
Ogólnotechniczne Podstawy Biotechnologii Z Elementami Grafiki Inżynierskiej Ćw., Wojciech M. Budzianowski
Wojciech Budzianowski
No abstract provided.
Materiały Odstresowujące, Wojciech M. Budzianowski
Materiały Odstresowujące, Wojciech M. Budzianowski
Wojciech Budzianowski
No abstract provided.