نتایج جستجو برای: drying of springs
تعداد نتایج: 21166184 فیلتر نتایج به سال:
the effects of a couple of factors (cooking period of wheat: 0, 1 and 3.5 h and temperature of drying 70, 80 and 90 ْc) on drying behavior of tarkhineh during hot-air drying has been investigated. tarkhineh pill samples with 8 cm diameter and 11 mm thickness were dried to 0.64(d.b). results showed that cooking of wheat led to higher water absorption of tarkhineh dough, while increased drying rat...
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...
To optimize the use of sulfur in drying of apricot, four following treatments including: sulfiting and drying, sulfiting- blanching and drying, blanching- sulfiting and drying, and finally sulfiting- drying to % 50 of initial moisture- blanching and finish drying were studied. The levels of sulfur addition were from 0 to 1500 ppm, SO2 and drying was carried out at 50 to 74 °C. The quality of dr...
this paper peresents a mathematical model for the thin layer drying of the viliamz cultivar of soybean. the thin layer drying behaviour of soybean was experimentally investigated and the mathematical modelling performed by using thin layer drying models provided in the literature. experiments were conducted at inlet drying air temperatures of 30, 40, 50, 60 and 70ºc and at a fixed drying air ve...
the objective of this research was to study the drying characteristics of powderedagricultural residues. drying experiments of wheat straw (triticum aestivum) wereconducted at four temperatures of 50, 60, 70, and 80°c by a thermogravimetric analyzer.drying temperature had a significant effect on the moisture change and drying time.there was no constant drying rate period, but a short rising rat...
One of the factors which affect the quality of rice during milling is internal fissures created during and after drying operation. In many industrial countries intermittent drying method is hired to reduce the moisture content of rough rice in order to reduce the drying time and maintain the quality of the final product. A high percentage of rice breakage during milling process, at least in Ira...
Calcium carbonate is a versatile mineral with diverse industrial applications. Drying is a necessary processing step in preparation of calcium carbonate product. Deep knowledge of drying kinetics is required in order to design an appropriate dryer. The main aim of the present study was to investigate the drying kinetics of calcium carbonate, experimentally. Thirteen empirical correlations with ...
Massif of Parav-Bistoun covered around 880 square kilometers of the thrust zone of Zagros Mountains and located in Kermanshah province. There are various kinds of karst Landforms such as jamas, uvulas', dolines, caves in this mountainous area. These landforms are under the influence of palaeoclimatic conditions. Nowadays, current climatic conditions in this area allows for development of karst ...
in recent years immense interest has been focused on the use of solar dryers especially when taking into consideration economical and ecological aspects and increasing in fuel costs. the aim of this study was to compare the qualitative factors of raisins made by five different drying methods. at the first step, pretreatments were applied to grapes (var. sultanas) and then the grapes were dried ...
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