Energy analysis of an electric furnace with a vibration hearth for roasting vermiculite concentrates

2019 ◽  
pp. 7-12
Author(s):  
A. I. Nizhegorodov
Keyword(s):  
Electric Furnace ◽  
Specific Energy ◽  
Energy Intensity ◽  
Energy Analysis ◽  
Furnace Unit ◽  
Refined Model ◽  
Absorption Models ◽  
Temperature Time

An energy analysis of an electric furnace with a vibration hearth using previously obtained analytical absorption models and a new, refined model of vermiculite heat assimilation is presented. The temperature-time equation, the formulas of the productivity of the furnace unit and the specific energy intensity of the calcination of vermiculite concentrates are obtained. It is shown that the new concept furnaces have a specific energy intensity of not more than 77.8 mJ/m3, which is more than three times lower than the energy intensity of fiery furnaces for roasting vermiculite. Ill. 4. Ref. 14.

The influence of rectangular shape holes on energy intensity of grinding grain

2021 ◽  
pp. 18-23
Author(s):  
A. V Cherepkov ◽  
I. V. Konoshin
Keyword(s):  
Gastric Juice ◽  
Specific Energy ◽  
Energy Intensity ◽  
Conversion Coefficient ◽  
Grinding Process ◽  
Theoretical Evaluation ◽  
Surface Theory ◽  
Rectangular Shape ◽  
German Scientist ◽  
Circular Shape

Grain before feeding to animals exposed to grinding with the purpose of increasing its digestibility. As a result of this increases the area of interaction of the feed with the gastric juice and decreases the conversion coefficient. Surface theory formulated by German scientist Rittinger, suggests that the work of AR required for the grinding process is directly proportional to newly formed surface. The purpose of this paper is a theoretical evaluation of the intensity of grinding with the use of sieves with rectangular and circular shape holes. When getting groats with the same grinding module by the use of sieves with holes of rectangular shape, one should expect the decrease of specific energy intensity. By reducing the content of dust-like fractions and reduce the total surface feed should be expected to reduce the energy intensity of pneumo transportation.

Research of extrusion’s process of feed-stuff for fish

10.12737/6503 ◽  
2014 ◽  
Vol 9 (3) ◽  
pp. 95-97 ◽  
Author(s):  
Рудой ◽  
Dmitriy Rudoy
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Energy Intensity ◽  
Specific Energy Consumption ◽  
Experimental Studies ◽  
Screw Extruder ◽  
Temperature And Humidity

This article discusses a study of extrusion’s process of feed-stuff for fish on the developed two-screw extruder. The main technological requirements of fodder-stuff for fish was determined. The results of experimental studies were described, the relation of the specific energy consumption of the temperature and humidity of feed-stuff was defined. The obtained results show that the specific energy intensity of the two-screw extruder is lower than with other devices for the production of fodder-stuff for fish.

scholarly journals Energy Analysis of Greenhouse Dryer for Ficus Carica L. Leaves

2021 ◽  
Vol 39 (3) ◽  
pp. 810-816
Author(s):  
Wan Nurlaila Mat Desa ◽  
Ahmad Fudholi ◽  
Henny Sudibyo ◽  
Ghalya Pikra ◽  
Nugrahaning Sani Dewi ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Air Temperature ◽  
Specific Energy ◽  
Energy Analysis ◽  
Specific Energy Consumption ◽  
Ambient Air ◽  
Double Pass ◽  
Moisture Extraction ◽  
Solar Air Collector ◽  
Mass Basis

In this study, a greenhouse solar dryer with double-pass multi-hollow collector for leaf drying was design, constructed, and evaluated. From the result, the double pass solar air collector with multi-hollow tube is capable of increasing air temperature by 5.5℃-10.8℃ compared to ambient air temperature. Thermal efficiency of the dryer was evaluated for passive and active modes, where 47.2% and 50% are recorded respectively. The moisture reduction on mass basis in passive and active dryer recorded was 44% and 74%, respectively. The specific moisture extraction rate (SMER) and specific energy consumption (SEC) of passive dryer was determined to be 0.198 kg per kWh and 5.047 kWh per kg, and active dryer at 0.210 kg per kWh and 4.769 kWh per kg, respectively.

scholarly journals Physical, technological and technical characteristics of the blasted rock mass in terms of energy intensity of the processes

2021 ◽  
Vol 303 ◽  
pp. 01034
Author(s):  
Ivan Panachev ◽  
Ilya Kuznetsov ◽  
Anastasia Shirokolobova
Keyword(s):  
Rock Mass ◽  
Energy Consumption ◽  
Specific Energy ◽  
Energy Intensity ◽  
Coal Mines ◽  
Specific Energy Consumption ◽  
Rock Blasting ◽  
Mining Equipment ◽  
The Relationship

Kuzbass coal mines are equipped with powerful mining equipment; it is CME excavator type with bucket capacity from 4.6 m3 to 20 m3. To evaluate the efficiency of the excavation processes, a universal criterion was used – the value of specific energy consumption (kW h/m3). The dependences of excavator efficiency on the quality of rock blasting, estimated by the diameter of the average piece in the shot pile, are obtained. The relationship between the efficiency of excavators CME - 4.6, CME – 8, CME – 12.5, CME – 20, their energy intensity and the diameter of an average piece in the shot pile is determined.

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