نتایج جستجو برای: ground solar radiation

تعداد نتایج: 478171  

2018
Benjamin Bois Philippe Pieri Cornelis Van Leeuwen Lucien Wald Frédéric Huard Jean-Pierre Gaudillère Etienne Saur B. Bois C. Van Leeuwen

16 Solar radiation is an important climatic variable for assessing reference evapotranspiration 17 (E0), but it is seldom available in weather station records. Meteosat satellite images processed 18 with the Heliosat-2 method provide the HelioClim-1 database, which displays spatialized 19 solar radiation data at a daily time step for Europe and Africa. The aim of the present work 20 was to inve...

علی زمردیان, , علی‌رضا علامه, ,

Rice is only second to wheat as a major food for Iranians. It has to be dried for processing and/or storing due to excessive moisture content after harvesting. In most parts of Iran, rice is sun-dried by spreading it on the ground under solar radiation which leads to excessive losses such as attacking birds and rodents, grain contamination, wind and rainfall hazards, as well as thermal and mois...

Milad Imani-Harsini Mohammad M. Karkhanehchi

Considering that the effective yield of a panel is equal to its total number of hours of solar radiation and temperature, only the effects of temperature and solar radiation intensity at the maximum power point (MPP) are investigated in this article. By collecting temperature data, sun's radiation hours from six synoptic meteorological stations in Kermanshah Province over the course of an e...

Journal: :Radiation protection dosimetry 2002
B J Lewis L G I Bennett A R Green M J McCall B Ellaschuk A Butler M Pierre

An on-going investigation using a tissue-equivalent proportional counter (TEPC) has been carried out to measure the ambient dose equivalent rate of the cosmic radiation exposure of aircrew during a solar cycle. A semi-empirical model has been derived from these data to allow for the interpolation of the dose rate for any global position. The model has been extended to an altitude of up to 32 km...

ژورنال: علوم آب و خاک 2003
علی زمردیان, , علی‌رضا علامه, ,

Rice is only second to wheat as a major food for Iranians. It has to be dried for processing and/or storing due to excessive moisture content after harvesting. In most parts of Iran, rice is sun-dried by spreading it on the ground under solar radiation which leads to excessive losses such as attacking birds and rodents, grain contamination, wind and rainfall hazards, as well as thermal and mois...

2004
Richard Perez Marek Kmiecik Kathleen Moore David Renné Frank Vignola Pierre Ineichen

This paper presents examples of high resolution solar radiation maps generated from satellite data using the semiempirical model previously developed by the authors. The paper includes a multi-climatic performance validation of the model in its latest operational configuration and discusses its eventual utilization in the preparation of the latest US National Solar Radiation Data Base. 1. RECAP...

ژورنال: انرژی ایران 2018

The energy production analysis of a  photovoltaic system depends on the panels tempreture and solar radiation. An endless and free source of solar energy received at the Earth's surface depends on the geographical location, different hours of day and seasons of the year.Hence, its correct evaluation is a strategic factor for the feasibility of a solar system. in this paper, a new method of ener...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1386

چکیده ندارد.

ژورنال: علوم آب و خاک 2012
سید مجید میرلطیفی, , کامیار بیات, ,

Global solar radiation (Rs( on a horizontal surface in the estimation of evapotranspiration of plants and hydrology studies is an important factor. Average daily global solar radiation on a horizontal surface was estimated by artificial neural networks (ANNs) and five empirical models including FAO (No.56), Hargreaves-Samani, Mahmood-Hubard, Bahel and Annandale. The weather data was selected fr...

ژورنال: انرژی ایران 2018

Solar energy is the most unique renewable energy source in the world and is the main source of all energy on Earth. Solar energy can be converted into other forms of energy directly and indirectly. In general, the energy given off by the sun about 3. 8 two 1023 kW per second. In the present study, the potential of solar energy in the province of surveillance data 9 synoptic stations located in ...

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