نتایج جستجو برای: specific energy consumption

تعداد نتایج: 1812150  

The main aim of this paper is to evaluate the energy efficiency in 30 provinces of Iran by applying the different methods of DEA and Anderson and Peterson during the period of 2009-2013. Also, since classical analysis models do not differentiate efficient cases, the AP method (Anderson-Peterson) was used to rank efficient units for evaluating efficiency correctly. So that combination of input v...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده مدیریت و اقتصاد 1390

هدف از این مطالعه بررسی ارتباط بین مصرف انرژی و رشد اقتصادی در کشورهای عضو اوپک طی دوره زمانی 2009-1995 می باشد. در این مطالعه برای بررسی ارتباط کوتاه مدت از الگوی خودرگرسیون برداری و برای رابطه بلند مدت از آزمون هم جمعی یوهانسن و الگوی تصحیح خطای برداری استفاده شده است. نتایج به دست آمده نشان دهنده آن است که در کوتاه مدت مصرف انرژی با رشد اقتصادی در کشورهای عضو اوپک رابطه مثبت و البته غیر معنا...

Journal: :تحقیقات مهندسی کشاورزی 0
غلامرضا روحی عضو هیئت علمی گروه مکانیک دانشگاه آزاد اسلامی واحد ایذه میر حسین پیمان استادیار گروه مکانیک ماشین های کشاورزی دانشگاه گیلان سعید مینایی دانشیار گروه مکانیک ماشین های کشاورزی دانشگاه تربیت مدرس

the rice conversion process is an agricultural transformative industry that consumes a great deal of fossil fuel and electricity. in this study, the effect of different factors on energy consumption, energy consumption index and whitening index were investigated. the experimental design was a split plot design with four whitening periods (15, 30, 45, 60s) (main plot), three rice varieties (khaz...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2012
ahmad abbaszadeh ali motevali, barat ghobadian mohammad hadi khoshtaghaza saeid minaei

thin layer drying of russian olive (elaeagnusan gastifolial l.) fruit using a hot air dryer in order to calculate effective moisture diffusivity, activation energy and energy consumption has been evaluated in this article. the selected variables included three levels of air velocity of 0.5, 1 and 1.5 m/s and three air temperature levels of 50, 60 and 70°c. increased air temperature increased ef...

In this computational research, the separate and simultaneous impacts of diesel direct injection timing, fuel spraying cone angle, and hydrogen gas addition on combustion characteristics, output emissions, and performance in a single-cylinder direct injection diesel engine was studied. In order to conduct the simulations, valid and reliable models for combustion, break-up, and for turbulence wa...

According to the energy crisis in the world, optimization of energy consumption is indispensable. Technological advances in constructions and application of renewable energy resources demand saving energy. Atrium, as one of the construction elements, catches sufficient daylight and acts as a passive solar element and results in a decline of energy consumption. This research seeks to evalu...

Journal: :journal of agricultural science and technology 2012
r. amiri chayjan

drying properties of high moisture potato slices with initial moisture content of about 4.06 (db) under thin layer fixed, semi fluidized and fluidized bed conditions were studied. drying air temperatures of 40, 50, 60 and 70°c were applied in experiments using a laboratory fluidized bed convective dryer. in order to predict the drying behavior of potato slices, seven thin layer drying models we...

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