نتایج جستجو برای: line heat source method

تعداد نتایج: 2483238  

Journal: :journal of agricultural science and technology 2012
a. sadeghi

application of feed pellets in animal and aquatic farming industries has grown because of both the physical and the nutritional benefits it provides. development of feed pellets manufacturing industry is also considerable. steam conditioning process, which plays an important role in pelleting production, includes heating feed particles, adding moisture, and mixing the mash. pellets cooling and ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعت آب و برق (شهید عباسپور) - دانشکده مهندسی برق و کامپیوتر 1392

abstract according to increase in electricity consumption in one hand and power systemsreliability importance in another , fault location detection techniqueshave beenrecentlytaken to consideration. an algorithm based on collected data from both transmission line endsproposed in this thesis. in order to reducecapacitance effects of transmission line, distributed parametersof transmission line...

A.K Vashishth, K Rani

This paper investigates the quasi-static plane deformation of an isotropic thermoelastic half-space due to buried seismic sources and heat source. Governing equations of thermo-elasticity are solved to obtain solutions for seismic sources in a thermoelastic half-space. The general solutions are acquired with the aid of Laplace and Fourier transforms and with the use of boundary conditions. The ...

2001
M. Fernandez E. Banda E. Rojas

An instrument designed to measure thermal conductivity of consolidated rocks, dry or saturated, using a transient method is presented. The instrument measures relative values of the thermal conductivity, and it needs calibration to obtain absolute values. The device can be used as heat pulse line source and as continuous heat line source. Two parameters to determine thermal conductivity are pro...

Journal: :international journal of advanced design and manufacturing technology 0
davood azadi nosratollah solhjoei sayedali mousavi najafabad branch, islamic azad university, najafabad, iran *corresponding author

all the producing and assembling processes exert residual stress on the pieces that may lead to structural failure. therefore, calculating the residual stress in such structures has been common in recent years. in this article, distribution of temperature and residual stress resulting from arc welding in three-pass butt joint in p91 austenitic stainless steel pipes is calculated and estimated u...

Journal: :نشریه دانشکده فنی 0
دکتر حسین شکوهمند مهندس مجید ایزدخواه

in this paper, the temperature distribution around a moving heat source had been investigated including the phase change and non phase change . in non-phase change state, the governing equation was converted to finite difference equation by finite volume method and the equation was solved by alternating direction implicit method. this method was unconditionally stable . in phase change state, t...

2012
Seama Koohi - Fayegh Marc A. Rosen

The temperature response in the soil surrounding multiple boreholes is evaluated analytically and numerically. The assumption of constant heat flux along the borehole wall is examined by coupling the problem to the heat transfer problem inside the borehole and presenting a model with variable heat flux along the borehole length. In the analytical approach, a line source of heat with a finite le...

Journal: :تحقیقات مهندسی کشاورزی 0
سید حبیب الله هاشمی فرد دهکردی دانشجوی دکتری مکانیک ماشینهای کشاورزی و عضو هیات علمی دانشگاه آزاد اسلامی واحد دزفول مرتضی الماسی عضو هیات علمی دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران محمد مهران زاده دانشجوی دکتری مکانیزاسیون کشاورزی و عضو هیات علمی دانشگاه آزاد اسلامی واحد دزفول

to design equipment and facilities to dry, preserve and process pomegranates, it is necessary to know their specific heat and thermal conductivity. the objectives of this study were to determine the specific heat and thermal conductivity of pomegranates and develop mathematical estimation models for them. the effects of moisture content (15-75% w.b.) and temperature (5-20°c) on the thermal prop...

Journal: :Transactions of the Society of Mechanical Engineers 1935

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