نتایج جستجو برای: solar

تعداد نتایج: 119971  

In this paper, the annual and economic performance of an integrated solar combined cycle (ISCC) with indirect energy storage tanks is investigated. The study includes four scenarios, in which the combined cycle performance was studied exclusively in the first scenario. In the second scenario, the integrated solar combined cycle (ISCC) was examined, and the use of supplementary firing instead of...

2016
Sumit Tiwari Rohit Tripathi G. N. Tiwari

Abstract—Present study focused on the utilization of solar energy by the help of photovoltaic greenhouse solar dryer under forced mode. A single slope photovoltaic greenhouse solar dryer has been proposed and thermal modelling has been developed. Various parameters have been calculated by thermal modelling such as greenhouse room temperature, cell temperature, crop temperature and air temperatu...

2012
Mike Lockwood Mat Owens Luke Barnard Chris Davis

of an M7.9 class flare on 13 March 2012. It is shown here in the 131 Å wavelength, which is particularly good for seeing solar flares and is typically colourized in teal. The flare was from the same active region, no. 1429, that produced flares and coronal mass ejections the entire week. The region had been moving across the face of the Sun since 2 March, then rotated out of Earth view. But per...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهرکرد - دانشکده کشاورزی 1388

چکیده ندارد.

1998
Richard DeVore

We argue that magnetic reconnection plays the determining role in many of the various manifestations of solar activity. In particular, it is the trigger mechanism for the most energetic of solar events, coronal mass ejections and eruptive flares. We propose that in order to obtain explosive eruptions, magnetic reconnection in the corona must have an “on-off” nature, and show that reconnection i...

Journal: :آب و خاک 0
علیزاده علیزاده خلیلی خلیلی

abstract solar radiation, nowadays has a lot of application in different fields of agriculture, irrigation, and hydrology engineering and due to these various applications, different models has been proposed for it’s estimation. angstrom-prescott equation is one of the most important well known models for solar radiation estimation. this equation has empirically coefficient that various for eac...

Journal: :تحقیقات مهندسی کشاورزی 0
اکبر جوکار عضو هیات علمی مرکز تحقیقات کشاورزی و منابع طبیعی استان فارس علی زمردیان دانشیار بخش ماشین آلات دانشکده کشاورزی دانشگاه شیراز ندا مفتون آزاد استادیار پژوهشی مرکز تحقیقات کشاورزی و منابع طبیعی استان فارس لادن جوکار مربی پژوهشی مرکز تحقیقات کشاورزی و منابع طبیعی استان فارس

this study determined optimum conditions for drying pomegranate arils in a solar dryer. a cabinet solar dryer was used in active and mixed modes. the response surface method was employed with nine treatments (runs) and a control run (3 m/s air velocity and 2 cm in thickness) and five replications. the bryte cultivar was tested and samples were dried to approximately 10% moisture. drying time, v...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید