نتایج جستجو برای: drying of springs

تعداد نتایج: 21166184  

Journal: :مهندسی بیوسیستم ایران 0
هادی باقری کارشناس ارشد مکانیک ماشین های کشاورزی، ایران ، تهران ، پاکدشت ، دانشگاه تهران (پردیس ابوریحان)، گروه فنی کشاورزی، دانشگاه تهران ـ پردیس ابوریحان اکبر عرب حسینی دانشیار (دکتری مکانیک ماشین های کشاورزی)، ایران، تهران، پاکدشت، دانشگاه تهران (پردیس ابوریحان)، گروه فنی کشاورزی، دانشگاه تهران ـ پردیس ابوریحان. محمدحسین کیانمهر استاد (دکتری مکانیک ماشین های کشاورزی)، ایران، تهران، پاکدشت، دانشگاه تهران (پردیس ابوریحان)، گروه فنی کشاورزی، دانشگاه تهران ـ پردیس ابوریحان.

in this paper the energy and exergy analyses in chamber drying process of thin layer drying of tomato in a forced solar drying was investigated. the experiments were carried out with two thicknesses of 5 and 7 and two airflows 0.5 m.s-1 and 1 m.s-1. during the experimental process, ambient temperature was between 22 and 36 , air relative humidity between was 14 and 50, and solar radiation range...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2005
akbar khodaparast haghi hossein ghanadzadeh daniel rondot

the cost of drying carpet which is done toward the end of the manufacturing process, is quite high. the carpet industry has been using convection drying for many years. little attention has been given to quantifying the effect of microwave power during the drying of carpet. an experimental system was developed whereby air was introduced into the cavity of a domestic microwave oven. the results ...

1962
Arnold Gray

it is at once evident that the author endeavours to answer the ancient questions: "What is Art? What is Man?" To achieve this goal he pursues innumerable fields of study and first directs his efforts to the Old and New Testament. He views these stories as epics written by poets. With the help of numerous quotations from the Bible and from elsewhere he convinces us that we are dominated by the O...

Journal: :journal of herbal drugs 0
forugh mahdiyan medicinal plants department, shahrekord branch, islamic azad university, shahrekord, 88146, iran abdollah ghasemi pirbalouti research center of medicinal plants & ethno-veterinary, islamic azad university, shahrekord branch, shahrekord, iran;

background & aim: salvia hydrangea is one of the medicinal plants belonging to lamiaceae family. medicinal plants can be marketed as fresh or dried products; however aromatic plants are often dried before extraction to reduce moisture content. the aim of this study was to evaluate the impact of different drying methods on qualitative and quantitative changes in essential oil of sage. experiment...

Journal: :ماشین های کشاورزی 0
محمدحسین آق خانی محمدحسین عباسپور فرد محمدرضا بیاتی حمید مرتضی پور سید ایمان ساعدی علی مقیمی

drying is a high energy consuming process. solar drying is one of the most popular methods for dehydration of agricultural products. in the present study, the performance of a forced convection solar dryer equipped with recycling air system and desiccant chamber was investigated. the solar dryer is comprised of solar collector, drying chamber, silica jell desiccant chamber, air ducts, fan and m...

ژورنال: علوم آب و خاک 2005
علی زمردیان, , حمید قاسم خانی, , داریوش زارع, ,

The application of solar energy for drying cereals and other agricultural commodities has been increasing lately. This is due to the fact that solar energy is free, renewable, inexhaustible and environmentally friendly. This research is a new approach for employing solar energy as the main energy source for drying purposes. The drying test rig was designed, fabricated and evaluated. The grain s...

رضا امیری‌چایجان, , محمد هادی خوش تقاضا, ,

Traditional paddy dryer systems in Iran cause considerable losses in rice production due to non-uniform drying. In order to decrease the amount of kernel fissuring and to increase the drying rate, fluidized bed method was applied in this study for rough rice drying at temperatures higher than normal. An experimental dryer was used for drying the samples. The drying experiments were set up to fi...

ابوالفضل گلشن تفتی, , محمد حسن فولادی, ,

Dehydration of Mazafati Rutab is a method to prevent its spoilage. Dehydration is necessary for Mazafati Rutab because it contains too much moisture. If the moisture content of Mazafati Rutab is decreased properly, it need not be stored under refrigeration. The present study was carried out in an attempt to decrease the moisture content in order to increase the shelf life of Mazafati dates. Sam...

Journal: :iranian journal of medical physics 0
zahra jomehzadeh m.sc. in medical physics, kerman university of medical science, kerman, iran ali jomehzadeh m.sc. in medical physics, rafsanjan university of medical science, rafsanjan, iran

introduction:  all of  the  people worldwide  are exposed  to  low levels  of  radiation. cancer induction  and  genetic disorders are among the hazards of low level exposure. in some cases, radiation close to hot springs is  higher than normal areas due to a high concentration and the decay products of ra-226. given the use of hot  springs by the general public  because  of their therapeutic p...

An evacuated tube solar collector drier is designed and developed to study analytically and experimentally drying kinetics of Thompson seedless grapes in Pune, India. Drying experiments are carried out in the month of April- June for continuous three years from 2013-2015. During the experimentation, temperatures of hot and cold air at various places, ambient relative humidity and humidity varia...

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